U.S. patent application number 10/778445 was filed with the patent office on 2004-08-19 for high-pressure fluid-flow system having compact two-bolt and four-bolt flanged and modular connectors.
Invention is credited to Albrecht, David E., Albrecht, David E. JR..
Application Number | 20040160056 10/778445 |
Document ID | / |
Family ID | 22649930 |
Filed Date | 2004-08-19 |
United States Patent
Application |
20040160056 |
Kind Code |
A1 |
Albrecht, David E. ; et
al. |
August 19, 2004 |
High-pressure fluid-flow system having compact two-bolt and
four-bolt flanged and modular connectors
Abstract
A one-piece block connects flanged fluid-flow connectors. Each
connector includes a central port and at least two tabs, the tabs
having apertures for affixing the connector to the block. The
dimensions of the block and the connector are such that the block
can accommodate a given number of connectors in a smaller space
than required in the prior art. Moreover, the maximum working
pressure of the connector can still be as large as about 5000 psi.
Channels formed within the block allow fluid communication from one
connector to another.
Inventors: |
Albrecht, David E.; (Blue
Bell, PA) ; Albrecht, David E. JR.; (Blue Bell,
PA) |
Correspondence
Address: |
William H. Eilberg
Suite 501 West
Three Bala Plaza
Bala Cynwyd
PA
19004
US
|
Family ID: |
22649930 |
Appl. No.: |
10/778445 |
Filed: |
February 13, 2004 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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10778445 |
Feb 13, 2004 |
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10061005 |
Jan 30, 2002 |
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6715798 |
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10061005 |
Jan 30, 2002 |
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09177771 |
Oct 23, 1998 |
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6467820 |
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Current U.S.
Class: |
285/125.1 ;
285/368; 285/412 |
Current CPC
Class: |
F16L 39/00 20130101;
F16L 23/0283 20130101; F16L 41/03 20130101; F16L 23/024 20130101;
F16L 23/032 20130101; F16L 23/02 20130101 |
Class at
Publication: |
285/125.1 ;
285/368; 285/412 |
International
Class: |
F16L 041/00 |
Claims
1. A one-piece, flanged, fluid-flow connector for connecting tube,
pipe, hose or the like to a port face, said connector having an
overall length L1, comprising: a) a base having a height H, width
W, a generally-flat port face mounting surface on one end, and a
connection piece fixed to and extending from the other end of said
base; b) a plurality of mounting tabs fixed to and extending
outwardly from said base, said tabs having a thickness T and an
aperture extending therethrough; c) a central, elongate,
cylindrical channel extending lengthwise through said connector
from a port on said mounting surface to a port on said connection
piece, said port having a nominal diameter D1 at said port face
mounting surface, said base having a maximum width W which is less
than the recommended pad width FF specified in SAE standard J518
corresponding to said nominal port diameter D1; and, said connector
having a working pressure rating greater than or equal to the
working pressure rating specified in SAE standard J518.
2. The connector recited in claim 1, said width W being less than
or equal to EE.
3. The connector recited in claim 1, said base having a
reinforcement portion, said connection piece contiguously formed
with and extending from said reinforcement portion.
4. The connector recited in claim 3, said reinforcement portion
comprising a generally-conical extension intermediate said tabs and
said connection piece.
5. The connector recited in claim 3, said reinforcement portion
comprising ribs intermediate said tabs and said connection
piece.
6. The connector recited in claim 1, said port face having an
annular recess formed therein constructed and arranged to receive
an "O"-ring to seal the connector on a desired port face.
7. The connector recited in claim 1, said connection piece having
means for interconnecting with a variety of elements such as a tube
extension, hose, or pipe.
8. The connector recited in claim 7, said connection piece having a
variable length depending on the intended element to which the
connector is attached.
9. The connector recited in claim 7, said connection piece having a
threaded outer surface for releasable interconnection with the
desired tube, pipe, hose or the like.
10. The connector recited in claim 3, including two tabs
diametrically opposed from one another on opposed sides of said
port.
11. The connector recited in claim 10, said tab apertures being
spaced apart a distance Z from one another.
12. The connector recited in claim 11, said tabs having a spot face
34a surrounding said apertures on which the heads of fastening
bolts are torqued.
13. The connector recited in claim 12, said spot face comprising a
cut-out in the reinforcement portion in the area proximate said
apertures.
14. The connector recited in claim 11, the dimensions being
selected such that W is less than or equal to EE, D1 is equal to A,
and Z is equal to (Q.sup.2+GG.sup.2)1/2, wherein EE, A, Q, O and GG
are defined in SAE standard J518.
15. The connector recited in claim 10, said connector having nested
horizontal and vertical port dimensions bb, cc, and dd
corresponding to nested horizontal and vertical port dimensions BB,
CC, and DD defined in SAE standard J518.
16. The connector recited in claim 15, said dimension bb being at
least 15% smaller than the dimension BB.
17. The connector recited in claim 15, said dimension cc being
smaller than the dimension CC.
18. The connector recited in claim 15, said dimension dd being at
least 20% smaller than the dimension DD.
19. The connector recited in claim 1, including two pair of tabs
diametrically opposed from one another on opposed sides of said
port.
20. The connector recited in claim 19, said connector having nested
horizontal and vertical port dimensions bb, cc, and dd
corresponding to nested horizontal and vertical port dimensions BB,
CC, and DD defined in SAE standard J518.
21. The connector recited in claim 20, said dimension cc being
smaller than the dimension CC.
22. The connector recited in claim 20, said dimension dd being at
least 20% smaller than the dimension DD.
23. The connector recited in claim 1, said connection piece being
bent to change the direction of fluid flow.
24. A one-piece, block, fluid-flow connector for connecting
flanged, fluid-flow connectors, said block connector having: a) a
plurality of mounting surfaces, each mounting surface having a
width W and a height H; b) a fluid-flow channel extending from one
mounting surface to each of the other mounting surfaces, said
channel having ports on each mounting surface, each of said ports
having a nominal diameter at said mounting surfaces; c) a plurality
of bores on each mounting surface for fastening the flanged
connector to said mounting surface, wherein the width W1 of a first
mounting surface is less than the recommended pad width FF
specified in SAE standard J518 corresponding to the nominal port
diameter D1 on said first mounting surface; and, said connector
having a working pressure rating on said first mounting surface
greater than or equal to the working pressure rating specified in
SAE standard J518 corresponding to said nominal diameter D1.
25. The connector recited in claim 24, said width W1 being less
than or equal to the minimum pad width EE specified in SAE standard
J518 corresponding to said nominal port diameter D1.
26. The connector recited in claim 25, said height H being less
than or equal to the dimension O specified in SAE standard J518
corresponding to said nominal diameter D1.
27. The connector recited in claim 26, said fluid-flow channel
having an Elbow, Tee, or Cross shape.
28. The connector recited in claim 24, including a second mounting
surface having a width W2 which is less than or equal to the
minimum pad width EE specified in SAE standard J518 corresponding
to the nominal port diameter D2 on said second mounting surface;
said connector having a working pressure rating on said second
mounting surface greater than or equal to the working pressure
rating specified in SAE standard J518 corresponding to the nominal
diameter D2.
29. The connector recited in claim 24, including a third mounting
surface having a width W3 which is less than or equal to the
minimum pad width EE specified in SAE standard J518 corresponding
to said nominal port diameter D3 on said third mounting surface;
said connector having a working pressure rating on said third
mounting surface greater than or equal to the working pressure
rating specified in SAE standard J518 corresponding to the nominal
diameter D3.
30. The connector recited in claim 24, including a fourth mounting
surface having a width W4 which is less than or equal to the
minimum pad width EE specified in SAE standard J518 corresponding
to said nominal port diameter D4 on said fourth mounting surface;
said connector having a working pressure rating on said fourth
mounting surface greater than or equal to the working pressure
rating specified in SAE standard J518 corresponding to the nominal
diameter D4.
31. The connector recited in claim 25, having at least one mounting
surface with multiple fluid flow ports thereon, each of said ports
being connected to said fluid-flow-channel.
32. The connector recited in claim 31, the centers of said multiple
ports being spaced apart a distance dd wherein dd is less than the
dimension FF specified in SAE standard J518 corresponding to said
nominal port diameter D1.
33. The connector recited in claim 32, wherein dd is less than or
equal to EE specified in SAE standard J518 corresponding to said
nominal port diameter D1.
34. The connector recited in claim 33, said multiple port mounting
surface having a width W2 less than or equal to n times EE.
35. The connector recited in claim 34, having more than one
mounting surface with multiple fluid flow ports thereon.
36. The connector recited in claim 25, having more than one
mounting surface with multiple (n) ports thereon, each of said
ports being connected to an independent (unconnected) fluid flow
channel extending from one multiple port mounting surface to
another.
37. The connector recited in claim 36, said multiple ports being
spaced apart a distance dd wherein dd is equal to the dimension O
specified in SAE standard J518 corresponding to said nominal port
diameter D1.
38. The connector recited in claim 37, wherein dd is less than FF
specified in SAE standard J518 corresponding to said nominal port
diameter D1.
39. The connector recited in claim 38, wherein dd is less than or
equal to EE.
40. The connector recited in claim 39, said multiple port mounting
surfaces having a width W2 less than or equal to n times the
dimension O specified in SAE standard J518 corresponding to said
nominal port diameter.
41. The connector recited in claim 40, said multiple port surfaces
having a width W2 less than or equal to n times EE.
42. A stackable, one-piece, block, fluid-flow connector for
connecting flanged connectors to a port face, said stackable
connector having: a) a flange mounting surface, a port face
mounting surface and a stacking surface opposite said port face
mounting surface, each surface having a width W and a height H; b)
a fluid-flow channel extending from said port face mounting surface
to at least one other mounting surface, said channel having ports
on said port face mounting surface and said mounting surface, each
of said ports having a nominal diameter at said port face mounting
surfaces; c) a plurality of threaded fastening bores on at least
one mounting surface for fastening the flanged connector to said
mounting surface, d) a plurality of through bores extending from
said stacking surface to said port face mounting surface, wherein
the width W1 of a first flange mounting surface is less than the
recommended pad width FF specified in SAE standard J518
corresponding to the nominal port diameter D1 on said first
mounting surface; and, said connector having a working pressure
rating on said first flange mounting surface greater than or equal
to the working pressure rating specified in SAE standard J518
corresponding to said nominal diameter D1.
43. The connector recited in claim 42, said width W1 being less
than or equal to the minimum pad width EE specified in SAE standard
J518 corresponding to said nominal port diameter D1.
44. The connector recited in claim 43, each through bore having a
counterbore in the stacking surface.
45. The connector recited in claim 43, said flange mounting
surfaces having a height H less than or equal to the dimension O
specified in SAE standard J518 corresponding to said nominal
diameter D1.
46. The connector recited in claim 43, said fluid-flow channel
having an Elbow, Tee, or Cross shape.
47. The connector recited in claim 43, including an annular recess
formed in the port face mounting surface proximate said fluid-flow
port.
48. The connector recited in claim 43, said stacking surface
including and a plurality of threaded bores.
49. The connector recited in claim 43, including two opposed flange
mounting surfaces having a width W2 less than or equal to EE.
50. The connector recited in claim 43, having at least one mounting
surface with multiple (n) fluid-flow ports thereon, each of said
ports being connected to said fluid-flow channel.
51. The connector recited in claim 48, the centers of said multiple
ports being spaced apart a distance dd wherein dd is less than FF
specified in SAE standard J518 corresponding to said nominal port
diameter D1.
52. The connector recited in claim 51, wherein dd is less than or
equal to EE specified in SAE standard J518 corresponding to said
nominal diameter D1.
53. The connector recited in claim 52, said multiple port mounting
surface having a width W2 less than or equal to n times dd.
54. A one-piece, 180-degree flow turn around connector, comprising:
a) a single mounting surface having a width W and a height H; b) an
input and output fluid-flow port on said mounting surface, and a
180-degree fluid-flow channel connecting said input and output
ports, said ports having a nominal diameter D1 at said mounting
surface; c) a plurality of through bores in said mounting surface,
wherein the width W of said mounting surface is less than twice the
recommended pad width FF specified in SAE standard J518
corresponding to said nominal port diameter D1; and, said connector
having a working pressure rating greater than or equal to the
working pressure rating specified in SAE standard J518
corresponding to said nominal diameter D1.
55. The connector recited in claim 54, said width W being less than
or equal to twice the minimum pad width EE specified in SAE
standard J518 corresponding to said nominal port diameter D1.
56. The connector recited in claim 55, said height H being less
than or equal to the dimension O specified in SAE standard J518
corresponding to said nominal diameter D1.
57. The connector recited in claim 55, including an annular recess
formed in the port face mounting surface proximate each fluid-flow
port.
58. The connector recited in claim 57, the centers of said ports
being separated by a distance dd wherein dd is less than or equal
to FF specified in SAE standard J518 corresponding to said nominal
port diameter.
59. The connector recited in claim 58, wherein dd is less than or
equal to EE.
60. A one-piece, 90-degree divide/combine flow connector,
comprising: a) a flange mounting surface having a width W, a height
H, and a single port having a nominal diameter D1 at said first
mounting surface; b) a port face mounting surface having a height H
and two ports having a nominal diameter D1 at said port face
mounting surface, the center of said ports being spaced apart from
one another a widthwise distance dd; c) a fluid-flow channel
connecting said ports, d) a plurality of through bores in said port
face mounting surface; e) a plurality of threaded bores on said
flange mounting surface, wherein the width W of said flange
mounting surface is less than the recommended pad width FF
specified in SAE standard J518 corresponding to said nominal port
diameter D1; and, said connector having a working pressure rating
greater than or equal to the working pressure rating specified in
SAE standard J518 corresponding to said nominal diameter D1.
61. The connector recited in claim 60, said width W being less than
or equal to the minimum pad width EE specified in SAE standard J518
corresponding to said nominal port diameter D1.
62. The connector recited in claim 61, said height H being equal to
the dimension O specified in SAE standard J518 corresponding to
said nominal diameter D1.
63. The connector recited in claim 61, including an annular recess
formed in the port face mounting surface proximate each fluid-flow
port.
64. The connector recited in claim 61, wherein the width dd is less
than to the width FF specified in SAE standard J518 corresponding
to said nominal port diameter D1.
65. The connector recited in claim 64, wherein the width dd is at
least 20% smaller than the width FF.
66. The connector recited in claim 64, wherein the width dd is less
than or equal to EE.
67. A one-piece, in-line divide/combine flow connector, comprising:
a) a flange mounting surface having a width W, a height H, and a
single port having a nominal diameter D1 at said first mounting
surface; b) a port face mounting surface having a height H and two
ports having a nominal diameter D1 at said port face mounting
surface, the center of said ports being spaced apart from one
another a widthwise distance dd; c) a fluid-flow channel connecting
said ports, d) a plurality of through bores on said port face
mounting surface; e) a plurality of threaded bores on said flange
mounting surface, wherein the width dd is less than or equal to
1-1/3 times EE specified in SAE standard J518 corresponding to said
nominal port diameter D1; and, said connector having a working
pressure rating greater than or equal to the working pressure
rating specified in SAE standard J518 corresponding to said nominal
diameter D1.
68. The connector recited in claim 67, said height H being equal to
the dimension O specified in SAE standard J518 corresponding to
said nominal diameter D1.
69. The connector recited in claim 67, including an annular recess
formed in the port face mounting surface proximate each fluid-flow
port.
70. A compact, fluid-flow connection system for connecting tube,
pipe, hose or the like to a port face, said system comprising a
flanged connector and a block connector, said flanged connector
having: a) a base having a height HF, width WF, a generally-flat
port face mounting surface on one end, and a connection piece fixed
to and extending from the other end of said base; b) a plurality of
mounting tabs fixed to and extending outwardly from said base, said
tabs having a thickness T and an aperture extending therethrough;
c) a central, elongate, cylindrical channel extending lengthwise
through said connector from a port on said mounting surface to a
port on said connection piece, said port having a nominal diameter
D1 at said port face mounting surface, said base having a maximum
width WF which is less than the recommended pad width FF specified
in SAE standard J518 corresponding to said nominal port diameter
D1; and, said connector having a working pressure rating greater
than or equal to the working pressure rating specified in SAE
standard J518, said block connector having: a) a plurality of
mounting surfaces, each mounting surface having a width WB and a
height HB; b) a fluid-flow channel extending from one mounting
surface to each of the other mounting surfaces, said channel having
ports on each mounting surface, said ports having a nominal
diameter D1 at said mounting surfaces; c) a plurality of bores on
each mounting surface for fastening the flanged connector to said
mounting surface, wherein the width WB of at least one mounting
surface is less than the recommended pad width FF specified in SAE
standard J518 corresponding to said nominal-port diameter D1; and,
said connector having a working pressure rating greater than or
equal to the working pressure rating specified in SAE standard J518
corresponding to said nominal diameter D1.
71. The system recited in claim 70, said flange width WF being less
than or equal to EE; said flange base having a reinforcement
portion, said connection piece contiguously formed with and
extending from said reinforcement portion; said reinforcement
portion comprising a generally-conical extension intermediate said
tabs and said connection piece or ribs intermediate said tabs and
said connection piece; said flange connector port face having an
annular recess formed therein constructed and arranged to receive
an "O"-ring to seal the connector on a desired port face; said
connection piece having means for interconnecting with a variety of
elements such as a tube extension, hose, or pipe; said connection
piece having a variable length depending on the intended element to
which the connector is attached; said connection piece having a
threaded outer surface for releasable interconnection with the
desired tube, pipe, hose or the like; said flange connector
including two tabs diametrically opposed from one another on
opposed sides of said port; said tab apertures being spaced apart a
distance Z from one another; said tabs having a spot face
surrounding said apertures on which the heads of fastening bolts
are torqued; said spot face comprising a cut-out in the
reinforcement portion in the area proximate said apertures; the
dimensions being selected such that WF is less than or equal to EE,
D1 is equal to A, HF is equal to O and Z is equal to
(Q.sup.2+GG.sup.2)1/2, wherein EE, A, Q, O and GG are defined in
SAE standard J518; said connector having nested horizontal and
vertical port dimensions bb, cc, and dd corresponding to nested
horizontal and vertical port dimensions BB, CC, and DD defined in
SAE standard J518; said dimension bb being at least 15% smaller
than the dimension BB; said dimension cc being smaller than the
dimension CC; and said dimension dd being at least 20% smaller than
the dimension DD.
72. The system recited in claim 71, said block width WB being less
than or equal to the minimum pad width EE specified in SAE standard
J518 corresponding to said nominal port diameter D1; said block
height HB being less than or equal to the dimension O specified in
SAE standard J518 corresponding to said nominal diameter D1; said
block fluid-flow channel having an Elbow, Tee, or Cross shape;
including two block mounting surfaces having a width W1, W2,
respectively, each of which is less than or equal to the minimum
pad width EE specified in SAE standard J518 corresponding to said
nominal port diameter D1.
73. The system recited in claim 72, said block connector having at
least one mounting surface with multiple fluid flow ports thereon,
each of said ports being connected to said fluid-flow-channel; the
centers of said multiple ports being spaced apart a distance dd
wherein dd is less than or equal to EE specified in SAE standard
J518 corresponding to said nominal port diameter D1; and said
multiple port mounting surface having a width W2 less than or equal
to n times EE.
74. The system recited in claim 72, said block connector having
more than one mounting surface with multiple (n) ports thereon,
each of said ports being connected to an independent (unconnected)
fluid flow channel extending from one multiple port mounting
surface to another; said multiple ports being spaced apart a
distance dd wherein dd is less than or equal to EE; and said
multiple port mounting surfaces having a width W2 less than or
equal to n times the dimension EE specified in SAE standard J518
corresponding to said nominal port diameter.
75. The system recited in claim 70, including a stackable,
one-piece, block, fluid-flow connector for connecting flanged
connectors to a port face, said stackable connector having: a) a
flange mounting surface, a port face mounting surface and a
stacking surface opposite said port face mounting surface, each
surface having a width WS and a height HS; b) a fluid-flow channel
extending from said port face mounting surface to at least one
other mounting surface, said channel having ports on said port face
mounting surface and said mounting surface, said port having a
nominal diameter D1 at said port face mounting surfaces; c) a
plurality of threaded fastening bores on at least one mounting
surface for fastening the flanged connector to said mounting
surface, d) a plurality of through bores extending from said
stacking surface to said port face mounting surface, wherein the
width WS of at least one flange mounting surface is less than the
recommended pad width FF specified in SAE standard J518
corresponding to said nominal port diameter D1; and, said connector
having a working pressure rating greater than or equal to the
working pressure rating specified in SAE standard J518
corresponding to said nominal diameter D1.
76. The system recited in claim 75, said width WS being less than
or equal to the minimum pad width EE specified in SAE standard J518
corresponding to said nominal port diameter D1; each through bore
having a counterbore in the stacking surface; said flange mounting
surfaces having a height HS less than or equal to the dimension O
specified in SAE standard J518 corresponding to said nominal
diameter D1; said fluid-flow channel having an Elbow, Tee, or Cross
shape; including an annular recess formed in the port face mounting
surface proximate said fluid-flow port; said stacking surface
including a plurality of threaded bores; including two opposed
flange mounting surfaces having a width WS2 less than or equal to
EE.
77. The system recited in claim 75, including a one-piece,
180-degree flow turn around connector, comprising: a) a single
mounting surface having a width WT and a height HT; b) an input and
output fluid-flow port on said mounting surface, and a 180-degree
fluid-flow channel connecting said input and output ports, said
ports having a nominal diameter D1 at said mounting surface; c) a
plurality of through bores in said mounting surface, wherein the
width WT of said mounting surface is less than twice the
recommended pad width FF specified in SAE standard J518
corresponding to said nominal port diameter D1; and, said connector
having a working pressure rating greater than or equal to the
working pressure rating specified in SAE standard J518
corresponding to said nominal diameter D1.
78. The system recited in claim 77, said width WT being less than
or equal to twice the minimum pad width EE specified in SAE
standard J518 corresponding to said nominal port diameter D1; said
height HT being less than or equal to the dimension O specified in
SAE standard J518 corresponding to said nominal diameter D1;
including an annular recess formed in the port face mounting
surface proximate each fluid-flow port; the centers of said ports
being separated by a distance dd wherein dd wherein dd is less than
or equal to EE specified in SAE standard J518 corresponding to said
nominal port diameter;
79. The system recited in claim 75, including a one-piece,
90-degree divide/combine flow connector, comprising: a) a flange
mounting surface having a width WD, a height HD, and a single port
having a nominal diameter D1 at said first mounting surface; b) a
port face mounting surface having a height HD and two ports having
a nominal diameter D1 at said port face mounting surface, the
center of said ports being spaced apart from one another a
widthwise distance dd; c) a fluid-flow channel connecting said
ports, d) a plurality of through bores in said port face mounting
surface; e) a plurality of threaded bores on said flange mounting
surface, wherein the width WD of said flange mounting surface is
less than the recommended pad width FF specified in SAE standard
J518 corresponding to said nominal port diameter D1; and, said
connector having a working pressure rating greater than or equal to
the working pressure rating specified in SAE standard J518
corresponding to said nominal diameter D1.
80. The system recited in claim 79, said width WD being less than
or equal to the minimum pad width EE specified in SAE standard J518
corresponding to said nominal port diameter D1; said height HD
being equal to the dimension O specified in SAE standard J518
corresponding to said nominal diameter D1; including an annular
recess formed in the port face mounting surface proximate each
fluid-flow port. wherein the width dd is less than or equal to EE
FF specified in SAE standard J518 corresponding to said nominal
port diameter D1.
81. The system recited in claim 75, including a one-piece, in-line
divide/combine flow connector, comprising: a) a flange mounting
surface having a width WE, a height HE, and a single port having a
nominal diameter D1 at said first mounting surface; b) a port face
mounting surface having a height HE and two ports having a nominal
diameter D1 at said port face mounting surface, the center of said
ports being spaced apart from one another a widthwise distance dd;
c) a fluid-flow channel connecting said ports, d) a plurality of
through bores on said port face mounting surface; e) a plurality of
threaded bores on said flange mounting surface, wherein the width
dd is less than or equal to 1-1/3 times EE specified in SAE
standard J518 corresponding to said nominal port diameter D1; and,
said connector having a working pressure rating greater than or
equal to the working pressure rating specified in SAE standard J518
corresponding to said nominal diameter D1.
82. A one-piece, flanged, fluid-flow connector for connecting tube,
pipe, hose or the like to a port face, said connector having an
overall length L1, comprising: a) a base having a height H, width
W, a generally-flat port face mounting surface on one end, and a
connection piece fixed to and extending from the other end of said
base; b) a plurality of mounting tabs fixed to and extending
outwardly from said base, said tabs having a thickness T and an
aperture extending therethrough; c) a central, elongate,
cylindrical channel extending lengthwise through said connector
from a port on said mounting surface to a port on said connection
piece, said port having a nominal diameter D1 at said port face
mounting surface, 1said base having a maximum width W which is less
than the recommended pad width FF specified in SAE standard J518
corresponding to said nominal port diaveter D1.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to a compact,
mechanically-connected, fluid-flow system having compact port-face
tube, pipe and hose connectors. More particularly, the system has
compact two-bolt and four-bolt flanged and modular connectors which
meet or exceed the working pressure specified in SAE standard J518
and which fit within the minimum pad width specified in SAE
standard J518.
[0002] BACKGROUND OF THE INVENTION
[0003] Four-bolt, split-flange connectors, such as illustrated in
SAE standard J518, are known for connecting tube, pipe, hose or the
like to a fluid-flow port face on an adapter plate, pump, or the
like. These connectors are intended for use in hydraulic systems,
or in industrial and commercial products, where it is desired to
avoid the use of threaded connectors.
[0004] Referring to FIGS. 1 and 2 (prior art), known split-flange
connectors 8 have a flanged head fitting 10, two split-flange clamp
halves 18, and four bolts 14 which are inserted through the clamp
halves 18 and into threaded apertures 22 in the face plate 24. The
bolts 14 properly align the connector 8 with the port 6. The
four-bolt, split-flange connector 8 may optionally include lock
washers 16 and an O-ring seal 20 on its port face mating
surface.
[0005] In mechanical, fluid-flow systems, it is common to design
several fluid-flow ports 6 adjacent one another. The proximity with
which fluid-flow ports 6 may be arranged is directly related to the
diameter of the port and the widthwise and lengthwise dimensions of
the prior art split-flange connectors 8. The Engineering Society
for Advancing Mobility Land Sea Air and Space (SAE) has developed a
standard which covers the specifications for the flanged head 10
and split-flange clamp halves 18 applicable to the aforementioned
prior art four-bolt, split-flange hydraulic connectors 8.
[0006] SAE standard J518 covers complete general and dimensional
specifications for the port 6, flange head 10 and split-flange
clamp halves 18 applicable to four-bolt, split-flange type tube,
pipe and hose connectors. In addition to specifying the dimensions
of four-bolt hydraulic flanged connectors and port dimensions for
bolted flange connectors, SAE standard J518 specifies the material,
finish, workmanship, material properties (minimum yield and minimum
elongation), and maximum working pressure. Code 61 of SAE standard
J518 recites the dimensions of standard pressure hydraulic flanged
connectors while Code 62 recites the dimensions of high pressure
hydraulic flanged connectors.
[0007] The minimum and recommended dimensions between adjacent
fluid-flow ports 6 for bolted flange connectors are specified in
SAE standard J518 with reference to a drawing reproduced
substantially herein as FIG. 3. SAE standard J518 specifies
dimensions BB, CC, and DD as the minimum vertical and horizontal
distances between the center of adjacent fluid-flow ports 6. The
recommended distances BB, CC, and DD are based on the recommended
dimensions of the above-described four-bolt hydraulic flanged
connectors and factor in a 0.06 inch clearance between flanges,
dimensionally on the high limit, when the same size flanges are
used on adjacent ports. SAE standard J518 also specifies the
minimum pad width EE of the port face for both the standard
pressure series Code 61 and high pressure series Code 62.
[0008] As used herein, the term "pad" refers to the surface of a
block, pump, or the like immediately surrounding a port 6 to which
a flanged hydraulic connector is attached. As used herein, the term
"footprint" is used to describe the projected area of the mounting
surface of the connector which abuts the "pad" of the block, pump,
etc.
[0009] Referring to FIGS. 1-3 (prior art), the recommended pad
width FF of the hydraulic flanged connector is much wider than the
minimum pad width EE. In order to design a high-pressure fluid flow
system more compact than the prior art, it would be desirable to
provide a flanged connector having a widthwise dimension which is
equal to or less than the minimum pad width EE so that the port
dimensions CC and DD can be reduced.
[0010] In order to satisfy the aforementioned objects, the
widthwise dimension of prior art two-bolt or four-bolt,
split-flange connectors cannot simply be reduced. A reduction in
the widthwise dimension would likely reduce the maximum working
pressure of the connector below the value specified in SAE standard
J518. Therefore, it is a further object of the invention to provide
a compact connector which requires only the minimum pad width EE
but which also meets or exceeds the working pressure specified in
SAE standard J518.
SUMMARY OF THE INVENTION
[0011] The present invention provides a flanged connector having a
widthwise dimension W which is less than the recommended pad width
FF, preferably equal to or less than the minimum pad width EE, so
that the port dimensions CC and DD can be reduced, and which also
can meet or exceed the working pressure specified in SAE standard
J518.
[0012] A one-piece, flanged fluid-flow connector of the invention
can be used for connecting tube, pipe, hose or the like to a port
face having a port diameter D1. The connector has an overall length
L1.
[0013] The flanged connector has base portion having a height H,
width W, a generally-flat port face mounting surface on one end, a
generally cylindrical connection piece at the other end, and a
reinforcement portion intermediate the port face mounting surface
and the connection piece. The port face mounting surface may have
an annular recess formed therein which is designed to receive an
"O"-ring to seal the connector on a desired port face. The
reinforcement portion may comprise a generally-conical, rectangular
or ribbed extension.
[0014] A central, elongate, cylindrical channel extends lengthwise
through the connector. The central channel has a nominal port
diameter D1 at the port face mounting surface.
[0015] The base has a maximum width W which is less than the
minimum pad width FF, preferably less than or equal to the minimum
pad width EE, specified in SAE standard J518 corresponding to the
nominal port diameter D1 of the connector.
[0016] A generally-cylindrical connection piece is fixed to and
extends from the reinforcement portion. The connection piece has
means for interconnecting with a variety of elements such as a tube
extension, hose, or pipe. The connection piece may have a variable
length depending on the intended element to which the connector is
attached. The connection piece may have a threaded outer or other
surface for releasable interconnection with the desired tube, pipe,
hose or the like. Alternatively, the connection piece may be
permanently connected to a tube, pipe or the like by, for example,
brazing, welding or swaging. The connection piece may be straight
or bent to change the direction of fluid flow. The connection piece
has a length L2.
[0017] A plurality of tabs are fixed to and extend outwardly from
the base portion. Each of the tabs has an aperture extending
therethrough. In a preferred embodiment, the (two-bolt) connector
has two tabs diametrically opposed from one another on opposed
sides of the central port. Alternatively, the (four-bolt) connector
has two pair of tabs, each pair of tabs diametrically opposed from
one another on opposed sides of the central port. The apertures are
spaced apart a distance Z from one another in the two-bolt
connector. The heightwise and widthwise spacing between apertures
in the four-bolt connector are equal to Q and GG, respectively, as
defined in SAE standard J518.
[0018] The tabs have a flat face surrounding the apertures on which
the heads of fastening bolts are torqued. Preferably, the flat face
comprises a semi-circular cut-out in the reinforcement portion in
the area proximate the aperture.
[0019] The connector is manufactured from a high-strength
structural material such as steel, iron or aluminum, or composite,
preferably a medium carbon steel.
[0020] The dimensions of the connector are preferably selected such
that W.ltoreq.EE, D1.ltoreq.A, and Z=(Q.sup.2+GG.sup.2).sup.1/2
wherein EE, A, Q, O and GG are defined in SAE standard J518. The
connector has nested horizontal and vertical port dimensions bb,
cc, and dd corresponding to nested horizontal and vertical port
dimensions BB, CC, and DD in SAE standard J518. In the two-bolt
embodiment, the dimension H is approximately equal to but slightly
larger than the dimension O defined in SAE standard J518; the
dimension bb is at least 15% smaller than the dimension BB; the
dimension cc is smaller than the dimension CC; and, the dimension
dd being at least 20% smaller than the dimension DD. In the
four-bolt embodiment, the dimension H is equal to or less than the
dimension O defined in SAE standard J518; cc is smaller than the
dimension CC and the dimension dd is at least 20% smaller than the
dimension DD.
[0021] The invention also provides modular block connectors having
a port face mounting surface width less than the recommended pad
with FF established in SAE standard J518. Preferably, the port face
mounting surface width is equal to EE, the minimum pad width
specified in SAE standard J518 corresponding to the nominal port
diameter D1. The port face mounting surface width may be less than
EE provided the width of the footprint of the mating flange
connector is less than the width of the port face mounting surface,
thereby maintaining a widthwise differential between the port face
mounting surface and the flange connector. The modular block
connectors have fluid flow channels such as an Elbow, Tee, Cross,
and other shapes.
[0022] The one-piece, block, connector for connecting flanged
connectors has a plurality of mounting surfaces. Each mounting
surface has a width W and a height H. A fluid-flow channel extends
from one mounting surface to each of the other mounting surfaces.
The fluid-flow channel may have an Elbow, Tee, or Cross shape. The
channel has ports on each mounting surface. The ports have a
nominal diameter D1 at the mounting surfaces. The connector has a
plurality of threaded bores on each mounting surface for fastening
a flanged connector to the mounting surface.
[0023] The width W of at least one mounting surface is less than
the recommended pad width FF, preferably less than or equal to the
minimum pad width EE, specified in SAE standard J518 corresponding
to said nominal port diameter D1. The connector may have two,
three, or four mounting surfaces having a width W1, W2, W3, W4 less
than FF, preferably less than or equal to the minimum pad width EE,
specified in SAE standard J518 corresponding to said nominal port
diameter D1. The height H of the block connector is preferably
equal to the dimension O specified in SAE standard J518
corresponding to the nominal diameter D1. The connector has a
working pressure rating greater than or equal to the working
pressure rating specified in SAE standard J518 corresponding to the
nominal diameter D1.
[0024] In one embodiment, at least one mounting surface has
multiple fluid flow ports thereon. Each of the ports is connected
to the fluid-flow-channel. The multiple ports are spaced apart a
distance dd wherein dd is less than FF specified in SAE standard
J518 corresponding to said nominal port diameter D1. Preferably,
the dimension dd is less than or equal to the dimension EE
specified in SAE standard J518 corresponding to said nominal port
diameter D1. The multiple port mounting surface has a width W2 less
than or equal to n times FF, preferably less than or equal to n
times EE.
[0025] In another embodiment, the connector has more than one
mounting surface with multiple (N) ingredient (unconnected) fluid
flow channels. Each of the fluid-flow channels extends from one
mounting surface to another. The mounting surfaces have multiple
(n) ports thereon. The multiple ports are spaced apart a distance
dd which is equal to the dimension O specified in SAE standard J518
corresponding to said nominal port diameter D1. In another
embodiment, the dimension dd is less than FF, more preferably less
than or equal to EE, specified in SAE standard J518 corresponding
to said nominal port diameter D1. The multiple port mounting
surfaces have a width W2 less than or equal to n times O specified
in SAE standard J518 corresponding to said nominal port diameter.
Preferably, the multiple port surfaces have a width W2 less than n
times FF, more preferably less than or equal to n times EE.
[0026] The invention also provides a stackable, one-piece, block
connector for connecting flanged connectors to a port face. The
stackable connector has a flange mounting surface, a port face
mounting surface and a stacking surface opposite the port face
mounting surface. Each surface has a width W and a height H.
[0027] A fluid-flow channel extends from the port face mounting
surface to at least one other mounting surface. The fluid-flow
channel may have an Elbow, Tee, Cross or other shape. The channel
has ports on the port face mounting surface and the mounting
surface. The port has a nominal diameter D1 at the port face
mounting surfaces.
[0028] A plurality of threaded fastening bores are located on each
mounting surface for fastening the flanged connector to the
mounting surface. A plurality of through bores extend from the
stacking surface to the port face mounting surface. Each through
bore may have a counterbore in the stacking surface on the two bolt
embodiment. An annular recess is formed in the port face mounting
surface proximate the fluid-flow port.
[0029] The flange mounting surfaces have a height H less than or
equal to the dimension O specified in SAE standard J518
corresponding to said nominal diameter D1. The width W of at least
one flange mounting surface is less than FF, preferably less than
or equal to the minimum pad width EE, specified in SAE standard
J518 corresponding to said nominal port diameter D1. The connector
has a working pressure rating greater than or equal to the working
pressure rating specified in SAE standard J518 corresponding to the
nominal diameter D1.
[0030] In one embodiment, the stackable connector has at least one
mounting surface with multiple (n) fluid-flow ports thereon. Each
of the ports are connected to the fluid-flow channel. The multiple
ports are spaced apart a distance dd wherein dd is less than FF,
preferably less than or equal to EE, specified in SAE standard J518
corresponding to said nominal port diameter D1. The multiple port
mounting surface has a width W2 less than or equal to n times
dd.
[0031] In another embodiment, the stackable connector has more than
one mounting surface with multiple (n) ports thereon, each of the
ports being connected to an independent (unconnected) fluid flow
channel extending from one multiple port mounting surface to
another. The multiple ports are spaced apart a distance dd wherein
dd is equal to the dimension O specified in SAE standard J518
corresponding to said nominal port diameter D1. The multiple port
mounting surfaces having a width W2 less than or equal to n times
the dimension O specified in SAE standard J518 corresponding to
said nominal port diameter.
[0032] Alternatively, dd is less than FF, preferably less than or
equal to EE, specified in SAE standard J518 corresponding to said
nominal port diameter D1. In this embodiment, the multiple port
surfaces have a width W2 less than or equal to n times EE.
[0033] The invention also provides a one-piece, 180-degree flow
turn around connector. The turn around connector has a single
mounting surface having a width W and a height H, an input and
output fluid-flow port on the mounting surface, and a 180-degree
fluid-flow channel connecting the input and output ports. The ports
have a nominal diameter D1 at the mounting surface. The centers of
the ports are separated by a distance dd wherein dd is less than
FF, preferably less than or equal to EE, specified in SAE standard
J518 corresponding to the nominal port diameter.
[0034] The width W of the mounting surface is less than or equal to
twice the recommended pad width FF, preferably less than or equal
to twice the minimum pad width EE, specified in SAE standard J518
corresponding to said nominal port diameter D1. The height H is
preferably equal to the dimension O specified in SAE standard J518
corresponding to the nominal diameter D1. The connector has a
working pressure rating greater than or equal to the working
pressure rating specified in SAE standard J518 corresponding to
said nominal diameter D1.
[0035] A plurality of through bores extend through each mounting
surface. An annular recess is formed in the port face mounting
surface proximate each fluid-flow port.
[0036] The invention also provides a one-piece, 90-degree
divide/combine flow connector. The divide/combine flow connector
has a flange mounting surface, a port face mounting surface, a
fluid-flow channel connecting the port face mounting surface and
the flange mounting surface, and a plurality of through bores on
the port face mounting surface. An annular recess is formed in the
port face mounting surface proximate each fluid-flow port.
[0037] The flange mounting surface has a width W, a height H, and a
single port having a nominal diameter D1 at the first mounting
surface. The port face mounting surface has a height H and two
ports having a nominal diameter up to D1 at the port face mounting
surface.
[0038] The height H is preferably equal to the dimension O
specified in SAE standard J518 corresponding to said nominal
diameter D1. The center of the ports are spaced apart from one
another a widthwise distance dd wherein dd is less than or equal to
the width FF, preferably at least 20% smaller than the width FF,
and more preferably less than or equal to EE, specified in SAE
standard J518 corresponding to said nominal port diameter D1.
[0039] The width W of the flange mounting surface is less than FF,
preferably less than or equal to the minimum pad width EE,
specified in SAE standard J518 corresponding to said nominal port
diameter D1. The connector has a working pressure rating greater
than or equal to the working pressure rating specified in SAE
standard J518 corresponding to said nominal diameter D1.
[0040] The invention also provides a one-piece, in-line
divide/combine flow connector. The in-line divide/combine flow
connector has a flange mounting surface having a width W, a height
H, a port face mounting surface, a fluid-flow channel connecting
the port face mounting surface and the flange mounting surface, a
plurality of through bores on the port face mounting surface, and a
plurality of threaded bores on said flange mounting surface. An
annular recess is formed in the port face mounting surface
proximate each fluid-flow port.
[0041] The flange mounting surface has a single port having a
nominal diameter D1. The port face mounting surface has a height H
and two ports having a nominal diameter up to D1. The center of the
ports are spaced apart from one another a widthwise distance dd
wherein the width dd is less than or equal to 1-1/3 times EE
specified in SAE standard J518 corresponding to said nominal port
diameter D1. The height H is preferably equal to the dimension O
specified in SAE standard J518 corresponding to said nominal
diameter D1. The connector has a working pressure rating greater
than or equal to the working pressure rating specified in SAE
standard J518 corresponding to said nominal diameter D1.
BRIEF DESCRIPTION OF THE DRAWINGS
[0042] FIG. 1 is a front elevational view of an assembled split
flanged connection in accordance with SAE standard J518 (prior
art);
[0043] FIG. 2 is a partial cross-sectional view taken along lines
Y-Y of FIG. 1 (prior art);
[0044] FIG. 3 is a schematic illustration of the port dimensions of
hydraulic flanged, tube, pipe, and hose connections, four-bolt
split flange type of SAE standard J518 (prior art);
[0045] FIG. 4 is a perspective view of a two-bolt connector having
a generally-conical reinforcement portion in accordance with an
embodiment of the present invention;
[0046] FIG. 5 is a cross-sectional view of the connector
illustrated in FIG. 4;
[0047] FIG. 5a is a side elevational view with a partial section of
a two-bolt connector having a ribbed reinforcement portion in
accordance with an embodiment of the invention;
[0048] FIG. 5b is a side elevational view with a partial section of
a two-bolt connector having an increased thickness reinforcement
portion in accordance with an embodiment of the invention;
[0049] FIG. 6 is a front elevational view of the connector of FIG.
4;
[0050] FIG. 6a is a front elevational view of the connector of FIG.
5a;
[0051] FIG. 6b is a front elevational view of the connector of FIG.
5b;
[0052] FIG. 7 is a schematic illustration of the minimum four-bolt
flange port dimensions set forth in SAE standard J518;
[0053] FIG. 8 is a footprint including reference dimensions of the
connector illustrated in FIG. 4;
[0054] FIG. 9 is a schematic illustration of a footprint of the
connector of FIG. 4 superimposed on the minimum four-bolt flange
port dimensions of FIG. 7;
[0055] FIG. 10 is a schematic illustration of nested footprints
including referenced dimensions of the connector illustrated in
FIG. 4;
[0056] FIG. 11 is a schematic illustration of a footprint of the
connector of FIG. 4 superimposed on the minimum four-bolt flange
port dimensions of FIG. 7 rotated about the fluid-flow port central
axis;
[0057] FIG. 12 is a perspective view of a four-bolt connector in
accordance with an embodiment of the invention;
[0058] FIG. 13 is a side elevation with a partial fragmentary view
of the connector illustrated in FIG. 12;
[0059] FIG. 14 is a front elevational view of the connector
illustrated in FIG. 12 including reference dimensions;
[0060] FIG. 15 is a schematic illustration of nested footprints of
the four-bolt connector illustrated in FIG. 12 including referenced
dimensions;
[0061] FIG. 16 is a front elevational view of a offset 90-degree,
flanged connector in accordance with an embodiment of the
invention;
[0062] FIG. 17 is a side elevational view of the connector shown in
FIG. 16;
[0063] FIG. 18 is a front elevational view of an in-line 90-degree
flanged connector in accordance with an embodiment of the
invention;
[0064] FIG. 19 is a side elevational view of the connector shown in
FIG. 18;
[0065] FIGS. 20, 21 and 22 are perspective views of integral Elbow,
Tee and Cross modular connectors in accordance with embodiments of
the invention;
[0066] FIG. 22a, 22b, and 22c are perspective views of four-port
and six-port modular connectors in accordance with embodiments of
the invention;
[0067] FIG. 22d is a perspective view of a header module in
accordance with an embodiment of the invention;
[0068] FIG. 22e is a perspective view of a junction module in
accordance with an embodiment of the invention;
[0069] FIGS. 23, 24, 25 are perspective views of stackable Elbow,
Tee and Cross modular connectors in accordance with an embodiment
of the invention;
[0070] FIG. 25a is a perspective view of a four-port modular
connector in accordance with an embodiment of the invention;
[0071] FIG. 25b is a perspective view of a stackable header module
in accordance with an embodiment of the invention;
[0072] FIGS. 26, 27, 28 are perspective views of integral Elbow,
Tee and Cross modular connectors in accordance with an embodiment
of the invention;
[0073] FIGS. 29, 30, 31 are perspective views of integral Elbow,
Tee and Cross modular connectors in accordance with an embodiment
of the invention;
[0074] FIGS. 32 and 33 are perspective views of integral adapters
in accordance with an embodiment of the invention;
[0075] FIG. 34 is a top plan view of a 180-degree flow turn around
flanged modular connector in accordance with an embodiment of the
invention;
[0076] FIG. 35 is a front elevational view of the connector shown
in FIG. 34;
[0077] FIG. 36 is a top plan view of a 180-degree flow turn around
block modular connector in accordance with an embodiment of the
invention;
[0078] FIG. 37 is a front elevational view of the connector shown
in FIG. 36;
[0079] FIG. 38 is a top plan view of an offset flow modular block
connector in accordance with an embodiment of the invention;
[0080] FIG. 39 is a front elevational view of the connector shown
in FIG. 38;
[0081] FIG. 40 is a top plan view of an in-line divide flow/combine
flow modular connector in accordance with an embodiment of the
invention;
[0082] FIG. 41 is a front elevational view of the connector shown
in FIG. 40;
[0083] FIG. 42 is a top plan view of a right angle divide
flow/combined flow modular connector in accordance with an
embodiment of the invention;
[0084] FIG. 43 is a side elevational view of the connector shown in
FIG. 42;
[0085] FIG. 44 is a front elevational view of the connector shown
in FIG. 42; and,
[0086] FIG. 45 is a front plan view of a connector having multiple,
interconnected fluid flow ports having different sizes.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
[0087] The high-pressure, fluid-flow system of the present
invention is described below with reference to FIGS. 4-45 wherein
like reference numerals are used throughout to designate like
structural elements.
[0088] The one-piece, flanged connector of the present invention
may have a two-bolt design 30 or a four-bolt design 130. A first
embodiment of the flanged connector of the present invention is
described with reference to FIGS. 4-11 which show a two-bolt
flanged connector designated generally by reference numeral 30.
[0089] The two-bolt, flanged connector 30 has a one-piece
construction in contrast with the prior art two-piece, split-flange
connector 8 illustrated in FIGS. 1-3. The connector 30 is
preferably manufactured from a high-strength structural material
such as steel, iron, or aluminum, or composite and preferably
medium carbon steel.
[0090] Referring to FIGS. 4-6, the connector 30 generally has an
irregularly-shaped base portion, a reinforcement portion, and a
connection piece. The base portion 32 has a height H and width W as
best seen in FIGS. 5 and 6. The tabs 34 (described below) have a
thickness T. The connection piece 36 has a length L2 and an outer
diameter D3. The connector has an overall length L1.
[0091] In one embodiment, best seen in FIGS. 4-6, the reinforcement
portion comprises a lengthwise extending, generally-conical
extension 32b at one end of the base. This embodiment is preferred
when manufacturing small quantities of the connector 30.
[0092] When manufacturing large quantities of the connector 30, the
conical reinforcement portion is reduced in thickness in the areas
1750 indicated by hash marks in FIGS. 5a and 6a, thereby forming a
plurality or ribs 1732b. In this embodiment, it is recognized that
the maximum working stress does not occur in an area midway between
the two mounting bolts, but rather in areas that are rotated about
40 degrees from this centrum adjacent to the mounting bolts and at
the maximum widthwise portion of the extension. Therefore, the ribs
1732b are located in the areas shown in FIGS. 5a and 6a.
[0093] In a further embodiment shown in FIGS. 5b and 6b, the
reinforcement portion comprises an enlarged thickness T extension
1832b of the base portion 1832. Due to the enlarged thickness of
the base portion 1832, and tab 1834 (described below) has a
counterbore 1832c in the lengthwise-extending apertures 1838 to
receive a fastening bolt.
[0094] The reinforcement portion provides added strength to the
connector 30 which is required to meet the working pressure
specified in SAE standard J518. The invention is described
hereinafter with reference to the embodiment disclosed in FIGS. 4,
5 and 6.
[0095] The base has a port face mounting surface 32a at one end.
The port face mounting surface 32a has an annular recess 42 formed
therein which is designed to receive an "O" ring which seals the
connector 30 on a desired port face 24.
[0096] The connector 30 has a generally-cylindrical connection
piece 36 fixed to and extending from the narrow or tapered end of
the conical extension 32b. The connection piece 36 is designed to
interconnect with a variety of elements such as a tube extension,
hose, or pipe. The length L2 of the connection piece 36 can be
varied depending on the intended element to which the connector is
attached. The connection piece 36 may have a threaded outer or
other surface for releasable interconnection with the desired tube,
pipe, hose or the like. Alternatively, the connection piece is
permanently fastened to a tube, pipe, hose, or the like by, for
example, brazing, welding or swaging.
[0097] A central, elongate cylindrical channel extends lengthwise
through the connector 30. As shown in FIG. 5, the central channel
has a uniform diameter D1 along its length. However, the diameter
of the channel may be varied along its length if desired. The
channel has ports 40 at the port face mounting surface 32a and the
end of the connection piece 36.
[0098] The connector 30 has a plurality of tabs 34 fixed to and
extending outwardly from the base portion 32. In the embodiment
illustrated in FIGS. 4-6, the connector has two tabs 34
diametrically opposed from one another. Each tab 34 has a
lengthwise-extending aperture 38 extending therethrough. Each
aperture 38 is designed to align with a threaded bore 22 in the
port face surrounding the fluid-flow port 6. Referring to FIG. 6,
the tabs have a flat surface or spot face 34a on which the heads of
fastening bolts are torqued. The conical extension 32b has
semi-circular cut-outs 32c in the area proximate the apertures 38
to provide clearance for the fastening bolt heads.
[0099] The dimensions of the connector 30 are described below in
Tables IA and IB. The dimensions of the connector 30 are selected
such that the tab apertures 38 align with the threaded bores 22 in
the port face 24 and such that the central port 40 aligns with the
fluid-flow port 6. Thus, the dimensions of the connector 30 are
dictated in part by the port dimensions specified in SAE standard
J518. However, the width W (2.times.R1) of the connector 30 has
been reduced in accordance with the present invention to be equal
to or smaller than the minimum pad width EE specified in SAE
standard J518.
1TABLE IA (English) TWO-BOLT CONNECTOR SPECIFICATIONS Nominal
Flange Maximum Size Foot Print Dimensions Bolt Working D1 Z R1 R2 T
D2 Size Pressure (in.) (in.) (in.) (in.) (in.) (in.) U.S. (p.s.i.)
1/8 .750 .296 .156 .250 .180 #8-32NC 12,000 1/4 .875 .359 .188 .312
.205 #10-24NC 10,000 3/8 1.125 .422 .203 .375 .281 1/4-20NC 8,500
1/2 1.650 .640 .297 .500 .343 {fraction (5/16)}-18NC 5,000 3/4
2.070 .797 .325 .563 .406 3/8-16NC 5,000 1 2.305 .922 .406 .625
.406 3/8-16NC 5,000 11/4 2.600 1.046 .375 .625 .469 {fraction
(7/16)}-14NC 4,000 11/2 3.088 1.235 .437 .625 .531 1/2-13NC 3,000 2
3.496 1.484 .437 .625 .531 1/2-13NC 3,000
[0100]
2TABLE IB (Metric) TWO-BOLT CONNECTOR SPECIFICATIONS Nominal Flange
Maximum Size Foot Print Dimensions Bolt Working D1 Z R1 R2 T D2
Size Pressure (mm) (mm) (mm) (mm) (mm) (mm) Metric (p.s.i.) 3.2 19
7.5 4 6.4 4.5 M4-.7 12,000 6.4 22.2 9.1 4.8 7.9 5.6 M5-.8 10,000
9.5 28.6 10.7 5.2 9.5 6.8 M6-1 8,500 12.7 41.9 16.3 7.5 12.7 8.75
M8-1.25 5,000 19 52.6 20.2 8.3 14.3 10.5 M10-1.5 5,000 25 58.5 23.4
10.3 15.9 10.5 M10-1.5 5,000 31.7 66 26.6 9.5 15.9 12.5 M12-1.75
4,000 38 78.4 31.4 11.1 15.9 14.5 M14-2 3,000 50.8 88.8 37.7 11.1
15.9 14.5 M14-2 3,000
[0101] For example, the minimum pad width EE for a 1/2 inch flange
connector according to SAE standard J518 is 1.31 inches. The width
W of applicant's 1/2" connector 30 is 1.28 inches (2.times.0.640
inches (R1)).
[0102] The four-bolt flange minimum pad size of SAE standard J518
is illustrated in FIG. 7 wherein the various dimensions are
identified by reference letters. For comparison, the dimensions
(footprint) of the connector 30 are illustrated in FIG. 8 relative
to the corresponding SAE standard J518 reference letter. Referring
to FIG. 9, the footprint of FIG. 8 is shown superimposed on the pad
of FIG. 7. FIG. 9 illustrates how the connector 30 fits within the
minimum pad width EE set forth in SAE standard J518 and properly
aligns with the threaded bores 22 and fluid-flow port 6.
[0103] Referring to FIG. 9, it can be seen that the radius R2
projects slightly above the port pad dimension O. This projection,
however, is not great enough to cause any interference when the
connectors are nested (described below) and mounted on ports that
meet the minimum dimension BB of SAE standard J518.
[0104] Because the width W of the connector 30 is reduced, and
because of its unique geometry, the minimum spacing between
adjacent fluid-flow ports 6 can be reduced compared to the prior
art dimensions BB, CC, and DD. FIG. 10 illustrates how the
connectors 30 can be nested to reduce the minimum port dimensions
bb, cc, and dd between two-bolt flange connectors 30 of the present
invention. A comparison of the minimum port dimensions BB, CC and
DD of SAE standard J518 and the reduced port dimensions bb, cc and
dd of the two-bolt flange connector of the present invention is
shown in Table II.
3TABLE II SAE Standard J518 Recommended Port Dimensions BB, CC, DD
vs. Reduced Port Dimensions bb, cc, dd of Two-Bolt Invention
Nominal Size BB vs bb CC vs cc DD vs dd (in.) (in.) (in.) (in.) 1/8
XXX 0.906 XXX 0.844 xxx 0.625 1/4 XXX 1.031 XXX 1.000 XXX 0.750 3/8
XXX 1.218 XXX 1.203 XXX 0.875 1/2 2.22 1.765 2.06 1.843 1.91 1.312
3/4 2.66 2.093 2.41 2.343 2.16 1.625 1 2.84 2.343 2.62 2.531 2.41
1.875 11/4 3.22 2.531 3.09 2.796 2.97 2.125 11/2 3.78 2.984 3.56
3.296 3.34 2.500 2 4.09 3.328 4.00 3.734 3.91 3.000 XXX - no SAE
specified dimension.
[0105] It can be readily seen that the connector 30 of the present
invention enables one of ordinary skill in the art to design a
fluid-flow system having a more compact design compared to the
prior art since the fluid-flow ports 6 can be arranged much closer
than the comparable ports for a four-bolt, split-flange connector
as taught in SAE standard J518. One knowledgeable in the art will
easily recognize the advantages of this reduced size.
[0106] Referring to FIG. 11, it can be seen that the two-bolt
flange connector 30 of the present invention can be rotated around
the fluid-flow port 6 central axis to avoid tapped holes from
intercepting with fluid flow passages as well as to avoid two-bolt
flange installment interference.
[0107] The two-bolt flange 30 of the present invention provides not
only reduced port dimensions bb, cc, and dd compared to the
dimensions specified in SAE standard J518, but also satisfies the
strength requirements specified in SAE standard J518. Table I also
shows that the maximum working pressure for the two-bolt connector
30 of the present invention meets or exceeds the maximum working
pressure specified in Code 61 of SAE standard J518. For example,
the maximum working pressure for the 1/2 inch, 3/4 inch, and 1
inch, connectors of the present invention is 5,000 p.s.i. The
maximum working pressure for the 1/8 inch, 1/4 inch, and 3/8 inch
connectors is even higher. Thus, many sizes of the two-bolt
connector 30 of the present invention meet or exceed not only the
working pressure specified in Code 61 (standard pressure series)
but also Code 62 (high pressure series) specified in SAE standard
J518 for four-bolt connectors.
[0108] Further, the connector 30 meets or exceeds the working
pressure specified in Code 61 with only a two-bolt design versus
the four-bolt design specified in SAE standard J518. One
knowledgeable in the art will easily recognize the advantages of a
two-bolt design which include easier installation and
manufacture.
[0109] As described above, the flange 30 is preferably made of a
high strength structural material so that the flange 30 meets or
exceeds the working pressure rating specified in SAE standard J518.
However, it should be appreciated that the flange 30 can also be
used in low pressure systems requiring a compact design. In such
applications, the flange can be made of a low strength material
such as plastic.
[0110] A further embodiment of the flanged connector of the present
invention is illustrated with reference to FIGS. 12-15 which show a
four-bolt flanged connector designated generally by reference
numeral 130.
[0111] The four-bolt, flanged connector 130 has a one-piece
construction in contrast with the prior art two-piece, split-flange
connector 8 illustrated in FIGS. 1-3. Similar to the two-bolt,
flanged connector 30 described above, the connector 130 is
preferably manufactured from a high-strength structural material
such as steel, iron, aluminum, or composite preferably medium
carbon steel.
[0112] Referring to FIGS. 12-14, the connector 130 has a
rectangular base portion 132, a reinforcement portion, and a
generally-cylindrical connection piece 136. The base portion 132
has a height H and width W as best seen in FIGS. 13 and 14. The
tabs (described below) have a thickness T. The connection piece 136
has a length L2 and outer diameter D3. The connector has an overall
length L1.
[0113] The base portion 132 has a lengthwise-extending, generally
conical extension 132b at one end and a generally-flat, port face
mounting surface 132a at the other end. The port face mounting
surface 132a has an annular recess 142 which is designed to receive
an "O"-ring which seals the connector 130 on a desired port face
24. In the embodiment shown in FIGS. 12-14, the reinforcement
portion is a generally-conical extension 132b which provides added
strength to the connector 130 which is required to meet the working
pressure specified in SAE standard J518. Similar to the two-bolt
design described above, the reinforcement portion may alternatively
have the ribbed design or increased thickness design shown in FIGS.
5a, 6a, 5b, 6b, respectively.
[0114] The connector 130 has a generally-cylindrical connection
piece 136 fixed to and extending from the narrow or tapered end of
the conical extension 132b. The connection piece 136 is designed to
interconnect with a variety of elements such as a tube extension,
hose, or pipe. The length L2 of the connection piece 136 can be
varied depending on the intended element to which the connector is
attached. The connection piece 136 may have a threaded or other
outer surface for releasable interconnection with the desired tube,
pipe, hose or the like. Alternatively, the connection piece 136 may
be permanently fixed to a tube, pipe, hose or the like by, for
example, brazing, welding or swaging.
[0115] A central, elongate cylindrical channel extends lengthwise
through the connector 130. As shown in FIG. 13, the central channel
has a uniform diameter D1 along its length. However, the diameter
of the channel may be varied along its length if desired. The
channel has ports 140 on the port face mounting surface 132a and
the end of the connection piece 136.
[0116] The connector 130 has four tabs 134 fixed to and extending
outwardly from the base portion 132. In the embodiment illustrated
in FIGS. 12-14, the connector has a pair of tabs on opposed
height-wise ends of the base. Each tab has a lengthwise-extending
aperture 138 extending therethrough. Each aperture 138 is designed
to align with a threaded bore 22 in the port face 24 surrounding
the fluid-flow port 6. Referring to FIG. 14, the tabs have a flat
surface or spot face 134a on which the heads of fastening bolts are
torqued. The conical extension 132b has semi-circular cut-outs 132c
in the area proximate the apertures 138 to provide clearance for
the fastening bolt heads.
[0117] The dimensions of the four-bolt connector are described
below in Tables IIIA and IIIB. The dimensions of the connector 130
are selected such that the tab apertures 138 align with the
threaded bores 22 in the port face 24 and such that the central
port 140 aligns with the fluid-flow port 6. Thus, the dimensions of
the connector 130 are dictated in part by the port dimensions
specified in SAE standard J518. However, the width W of the
connector 130 has been reduced in accordance with the present
invention to be equal to or smaller than the minimum pad width EE
specified in SAE standard J518.
4TABLE IIIA (English) Four-Bolt Connector Specifications Nominal
Flange Maximum Size (in.) Foot Print Dimensions Bolt Working D1 Q
GG W R2 T D2 Size Pressure (in.) (in.) (in.) (in.) (in.) (in.)
(in.) U.S. (p.s.i.) 1/8 0.696 0.278 0.594 0.156 0.250 0.180 #8-32NC
12,000 psi 1/4 0.804 0.344 0.719 0.187 0.312 0.205 #10-24NC 11,000
psi 3/8 1.038 0.430 0.844 0.203 0.375 0.281 1/4-20NC 8,500 psi 1/2
1.500 0.688 1.281 0.297 0.500 0.343 {fraction (5/16)}-18NC 6,000
psi 3/4 1.875 0.875 1.594 0.325 0.562 0.406 3/8-16NC 6,000 psi 1
2.062 1.031 1.844 0.406 0.625 0.406 3/8-16NC 6,000 psi 11/4 2.312
1.188 2.093 0.375 0.625 0.469 {fraction (7/16)}-14NC 6,000 psi 11/2
2.750 1.406 2.469 0.437 0.625 0.531 1/2-13NC 6,000 psi 2 3.062
1.688 2.969 0.437 0.625 0.531 1/2-13NC 6,000 psi
[0118]
5TABLE IIIA (Metric) Four-Bolt Connector Specifications Nom- inal
Flange Size Maximum (mm) Foot Print Dimensions Bolt Working D1 Q GG
W R2 T D2 Size Pressure (mm) (mm) (mm) (mm) (mm) (mm) (mm) Metric
(p.s.i.) 1/8 17.68 7.06 15 3.2 6.4 4.5 M4-7 12,000 psi 1/4 20.42
8.73 18.2 4.8 7.9 5.6 M5-8 11,000 psi 3/8 26.36 10.92 21.4 5.2 9.5
6.8 M6-1 8,500 psi 1/2 38.1 17.47 32.5 7.5 12.7 8.75 M8- 6,000 psi
1.25 3/4 47.63 22.22 40.5 8.3 14.3 10.5 M10- 6,000 psi 1.5 1 52.37
26.19 46.8 10.3 15.9 10.5 M10- 6,000 psi 1.5 11/4 58.73 30.18 53.1
9.5 15.9 12.5 M12- 6,000 psi 1.75 11/2 69.85 35.71 62.7 11.1 15.9
14.5 M14-2 6,000 psi 2 77.77 42.87 75.4 11.1 15.9 14.5 M14-2 6,000
psi
[0119] For example, the minimum pad width EE for a 1/2 inch flange
connector according to SAE standard J518 is 1.31 inches. The width
W of applicant's 1/2 inch connector 130 is 1.281 inches.
[0120] The four-bolt flange minimum pad size of SAE standard J518
is illustrated in FIG. 7 wherein the dimensions are identified by
reference letters. For comparison, the dimensions of the connector
130 are illustrated in FIG. 14 relative to the corresponding SAE
standard J518 reference letter. FIG. 14 shows that the connector
130 will fit within the minimum pad width EE set forth in SAE
standard J518 and will properly align with the threaded bores 22
and fluid-flow port 6.
[0121] Because the width W of the connector 130 is reduced, the
minimum spacing between adjacent fluid-flow ports 6 can be reduced
compared to the prior art dimensions CC and DD of SAE standard
J518. FIG. 15 illustrates how the connectors 130 can be nested to
reduce the minimum port dimensions cc and dd between four-bolt
flange connectors 130 of the present invention. A comparison of the
minimum port dimensions CC and DD of SAE standard J518 and the
reduced port dimensions cc and dd of the four-bolt flange connector
130 of the present invention is shown in Table IV.
6TABLE IV SAE Standard J518 Recommended Port Dimensions vs. Reduced
Port Dimensions of Four-Bolt Invention Nominal Size CC vs. cc DD
vs. dd (in.) (in.) (in.) 1/8 XXX 0.875 XXX 0.625 1/4 XXX 1.031 XXX
0.750 3/8 XXX 1.234 XXX 0.875 1/2 2.062 1.718 1.906 1.312 3/4 2.406
2.094 2.156 1.625 1 2.625 2.312 2.406 1.875 11/4 3.093 2.625 2.968
2.125 11/2 3.562 3.094 3.344 2.500 2 4.000 3.500 3.906 3.00 XXX -
no SAE specified dimension
[0122] Since the connector 130 of the present invention has a more
compact design compared to the prior art, the fluid flow ports 6
can be arranged much closer than the comparable ports for a
four-bolt split flange connector as taught in SAE standard J518.
One knowledgeable in the art will easily recognize the advantages
of this reduced size.
[0123] The four-bolt flange connector 130 of the present invention
provides not only reduced port dimensions cc and dd compared to the
dimensions specified in SAE standard J518, but also satisfies the
strength requirements specified in SAE standard J518. Table III
shows that the maximum working pressure for the four-bolt connector
130 of the present invention meets or exceeds the maximum working
pressure specified in both Code 61 and Code 62 of SAE standard
J518. For example, the maximum working pressure for the 1/2 inch,
3/4 inch, 1 inch, 1-1/4 inch, 1-1/2 inch, and 2 inch connectors is
6,000 p.s.i. The maximum working pressure for the 1/8 inch, 1/4
inch, and 3/8 inch connectors 130 is 12,000, 11,000, and 8,5000
p.s.i. respectively. Thus, the four-bolt connector 130 of the
present invention meets or exceeds not only the standard pressure
series Code 61 but also the high pressure series Code 62 specified
in SAE standard J518 for four-bolt connectors.
[0124] Tables I-IV list several embodiments of the connectors of
the present invention. The embodiments listed in tables I-IV
correspond to a range of port diameters common in the industry.
However, the connectors of the present invention are not limited to
the sizes recited therein. One of ordinary skill in the art will
readily recognize that the connectors 30 and 130 can be made in
each of the sizes specified in SAE standard J518 and achieve each
of the above-described objects of the invention.
[0125] FIGS. 16-17 illustrate an offset 90-degree, flanged
connector 230. FIGS. 18-19 illustrate an in-line 90-degree flanged
connector 330. Similar to the two-bolt connector 30 described
above, both 90-degree flanged connectors 230/330 have a one-piece
design. (A slash/is used herein to separate reference numerals
designating respective similar elements of different embodiments.)
The connectors 230/330 have an irregularly-shaped base portion
232/332 having a lengthwise extending, generally-conical extension
(reinforcement portion) 232b/332b at one end and a generally-flat,
port face mounting surface 232a/332a at the other end. The port
face mounting surface 232a/332a has an annular recess 242/342
formed therein which is designed to receive an O-ring which seals
the connector 230/330 on a desired port face 24.
[0126] The 90-degree flanged connectors 230/330 have a connection
piece 236/336 fixed to and extending from the narrow or tapered end
of the conical extension 232b/332b. The connection piece 236/336 is
designed to interconnect with a variety of elements such as a tube
extension, hose, or pipe.
[0127] In contrast with the connector 30 described above, the
connection piece 236/336 of the connectors 230/330 bends 90-degrees
to change the fluid flow direction without requiring additional
fittings. The connectors 230/330 otherwise have the same
construction and dimensions as the two-bolt connector 30 described
above. Specifically, the dimensions of the 90-degree connectors
230/330 are selected such that the flange apertures 238/338 align
with threaded bores 22 in the port face 24 and such that the
central port 240/340 aligns with the fluid-flow port 6.
[0128] Additionally, the width W of the connectors 230/330 is
reduced to be equal to or smaller than the minimum pad width EE
specified in SAE standard J518. The connectors 230/330 also satisfy
the strength requirements specified in SAE standard J518 with only
a two-bolt design verses the four-bolt design specified in SAE
standard J518.
[0129] Modular connectors in accordance with embodiments of the
invention are illustrated in FIGS. 20-44. Unless otherwise
indicated, the height H of each of the modular connectors shown in
FIGS. 20-44 is preferably equal to the dimension O specified in SAE
standard J518. Each of the modular connectors has a working
pressure rating greater than or equal to the working pressure
rating specified in SAE standard J518 corresponding to the nominal
diameter D1 of the fluid-flow port.
[0130] FIGS. 20-22 illustrate one-piece, block, fluid-flow
connectors for connecting two or more two-bolt flanged connectors
30 (such as described above). The block connectors 400/440/480 have
a plurality of mounting surfaces, each mounting surface having a
width W and height H. A fluid flow channel extends from one
mounting surface to each of the other mounting surfaces. The
channel has ports 402/442/482 on each surface. The fluid-flow ports
have a nominal diameter D1 at the mounting surfaces. A plurality of
threaded bores 406/446/486 are located on each mounting surface for
fastening a flanged connector to the mounting surface. In the
embodiments illustrated in FIGS. 20-22, each connector has at least
two mounting surfaces having a width W1, W2, each of which is less
than FF, preferably less than or equal to the minimum pad width EE,
specified in SAE standard J518 corresponding to the nominal port
diameter D1.
[0131] FIG. 20 illustrates an Elbow modular connector 400 in
accordance with an embodiment of the invention. The Elbow connector
400 has a single-piece, block construction with a central channel
extending therethrough. The central channel extends inwardly from a
first mounting surface 404a, bends 90-degrees, and exits through a
second mounting surface 404b. The connector 400 has a pair of
threaded bores 406 diagonally located on opposed sides of the
channel ports 402.
[0132] FIGS. 21 and 22 illustrate modular Tee 440 and Cross 480
connectors, respectively, in accordance with an embodiment of the
invention. The Tee 440 and Cross 480 connectors have a construction
similar to the Elbow connector 400 but have additional mounting
surfaces 444c/484c/484d and a differently shaped fluid-flow
channel. The shape of the fluid-flow channel of each connector is
illustrated graphically in FIGS. 20-31 by fluid-flow lines on the
top of or above each connector.
[0133] The elbow connector 400 has two mounting surfaces having a
width W1, W2. The Tee connector 400 has three mounting surfaces
having a width W1, W2, W3. The Cross connector 480 has four
mounting surfaces having a width W1, W2, W3, W4.
[0134] Flanged two-bolt connectors 30, such as described above, can
be mounted on each mounting surface
404a,404b/444a,444b,444c/484a,484b,484c,- 484d of the Elbow 400,
Tee 440, and Cross 480 connectors, respectively, by inserting
socket head bolts through the connector tabs 34 and into the
threaded bores 406/446/486.
[0135] FIGS. 20-22 illustrate that the width of each mounting
surface of the connectors 400/440/480 is less than the recommended
pad width FF established in SAE standard J518. Preferably, the
width of each mounting surface is equal to EE, the minimum pad
width specified in SAE standard J518 corresponding to the nominal
diameter D1 of the central port 402/442/482. The mounting surface
width may be less than EE provided the width of the mating flange
connector 30 is less than the width of the mounting surface,
thereby maintaining a widthwise differential between the mounting
surface and the flange connector.
[0136] FIGS. 22a, 22b, and 22c illustrate further embodiments of
the block, fluid-flow connectors for connecting two or more flanged
connectors (such as described above). The block connectors
700/720/740 have a construction similar to the above-described
connectors 400/440/480. However, the connectors 700/720/740 have a
top mounting surface 704c/724c/744c and a bottom mounting surface
704d/724d/744d. FIGS. 22a and 22b show different embodiments of a
four-port block connector while FIG. 22c shows a six-port block
connector.
[0137] FIGS. 22a, 22b, and 22c show the dimensions of the
connectors relative to the dimension EE. FIGS. 22a, 22b, and 22c
show that the width W1 must be wider than EE.
[0138] FIG. 22d illustrates a further embodiment of the block,
fluid-flow connector for connecting two or more flanged connectors
30 (such as described above). FIG. 22d illustrates a header module
onto which multiple connectors may be fastened and interconnected
by a common fluid-flow channel 762. The header module 760
illustrated in FIG. 22d has a plurality of mounting surfaces, each
mounting surface having a width W and a height H. The fluid-flow
channel extends from the first mounting surface 764a to each of the
other mounting surfaces 764b-d. The channel has ports on two of the
mounting surfaces 764a, 764b and multiple (n) ports on the other
two mounting surfaces 764c, 764d. The fluid-flow ports have a
nominal diameter D1 at the mounting surfaces. A plurality of
threaded bores 766 are located on each mounting surface proximate
each fluid-flow port 762.
[0139] In the embodiment illustrated in FIG. 22d, the header module
760 has two mounting surfaces 764a, 764b having a width W1 which is
less than FF, and preferably less than or equal to the minimum pad
width EE, specified in SAE standard J518 corresponding to the
nominal port diameter D1. The other mounting surfaces 764c, 764d
have a width W2 and a height H. The width W2 of the header module
760 is less than or equal to three times dd which the widthwise
distance between the port centers. The dimension dd is less than
FF, and preferably less than or equal to EE specified in SAE
standard J518 corresponding to the nominal port diameter. The
header module 760 may, however, be provided with a different number
n of fluid-flow ports 762 on the multiple port mounting surfaces
764c, 764d. In that case, the width W2 of the header module 760
would be less than or equal to n times dd. The dimension dd may be
less than EE provided that the width W of the flanged connector 30
attached thereto is less than the dimension dd.
[0140] FIG. 22e illustrates a further embodiment of the block,
fluid-flow connector for connecting two or more flanged connectors
30 (such as described above). FIG. 22e illustrates a junction
module 780 to which multiple connectors can be attached to
multiple, independent (unconnected) fluid-flow ports 782a-d. The
junction module 780 has a plurality of mounting surfaces 784a-d.
Independent fluid flow channels 782a-d extend from one mounting
surface to each of the other mounting surfaces. The channels have
ports on each of the mounting surfaces, respectively. The
fluid-flow ports have a nominal diameter D1 at the mounting
surfaces. A plurality of threaded bores 786 are located on each
mounting surface proximate each fluid-flow port. In the embodiment
illustrated in FIG. 22e, each mounting surface has a width W2 equal
to four times dd. In this embodiment, the dimension dd is
preferably equal to the dimension O specified in SAE standard J518
corresponding to the nominal port diameter D1. However, the width
W1 and the height H are each less than FF, preferably less than or
equal to the minimum pad width EE, specified in SAE standard
J518.
[0141] FIGS. 23-25 illustrate stackable, one-piece, Elbow 420, Tee
460 and Cross 500, fluid flow connectors for connecting one or more
flanged connectors (such as described above) to a port face. The
stackable block connectors 424c/464c/504c have at least one flange
mounting surface, a port face mounting surface 424a/464a/504a, and
a stacking surface 464b/504b opposite the port face mounting
surface. An additional block connector can be fastened to or
"stacked" on the stacking surface 464b/504b of the Tee and Cross
connectors after the first block connector has been fastened to the
port face. Each surface of the block connector has a width W and a
height H. In the embodiments illustrated in FIGS. 23-25, the width
W of the mounting surfaces is less than FF, preferably less than or
equal to the minimum pad width EE, corresponding to the nominal
port diameter D1.
[0142] A fluid-flow channel 422/462/502 extends from the port face
mounting surface 424a/464a/504a to each of the mounting surfaces
424c/464c/504c, 504d. The fluid flow channel also extends to the
stacking surface 464b/504b of the Cross and Tee connectors. The
channel has ports on each surface. The fluid-flow ports have a
nominal diameter D1 at the port face mounting surface and at each
of the mounting surfaces.
[0143] A plurality of threaded fastening bores 426/466/506 are
located on each mounting surface for fastening a flanged connector
to the mounting surface. A plurality of threaded fastening bores
466/506 are also located on the stacking surface of the Cross and
Tee connectors for fastening or stacking another block connector or
the stacking surface.
[0144] In contrast with the connectors 400/440/480 described above,
the connectors 420/460/500 have a designated port face mounting
surface 424a/464a/504a having an annular recess 423/463/503 formed
therein designed to receive an "O" ring which seals the block
connector on a desired port face 24. The connector 420/460/500 has
a pair of through bores 427/467/507 extending from the stacking
surface to the port face mounting surface. The through bores are
diagonally located on opposed sides of the central port. The bores
427/467/507 have a counterbore 429/469/509 on the stacking surface
424b/464b/504b. When fastening bolts are inserted through the bores
427/467/507, the bolt heads fit within the counterbores
429/469/509. A two-bolt flanged connector 30 or modular connector
such as described above can then be fastened to or "stacked" on the
stacking surface 464b/504b by inserting socket head bolts into the
threaded bores 426/466/506. Two-bolt flanged connectors 30 can also
be mounted on the mounting surfaces 464c/504c,504d of the Tee and
Cross connectors, respectively, which also have threaded bores
466/506 diagonally located on opposed sides of the each port.
[0145] FIGS. 23-25 illustrate that the port face mounting surface
in these embodiments is wider than the dimension EE. Otherwise, the
threaded bores 426/466/506 and the through bores 427/467/507 would
intersect and interfere with one another. However, the mounting
surfaces 424c/464c/504c, 504d which are perpendicular to the port
face mounting surface 424a/464a/504a have a width less than the
recommended pad width FF established in SAE standard J518.
Preferably, the width of the mounting surfaces 424c/464c/504c,504d
is equal to EE, the minimum pad width specified in SAE standard
J518 corresponding to the nominal diameter D1. The mounting surface
width may be less than EE provided the width of the mating flange
connector 30 is less than the width of the mounting surface,
thereby maintaining a widthwise differential between the mounting
surface and the flange connector.
[0146] FIG. 25a illustrates a further embodiment of a stackable,
fluid-flow connector for connecting one or more flanged connectors
30 (such as described above) to a port face. The block connector
790 has a construction similar to the above-described stackable
connectors 420/460/500. However, the connector 790 has a top
mounting surface 794d.
[0147] FIG. 25a shows the dimensions of the connector relative to
the dimensions EE and O. FIG. 25a shows that the width of the port
face mounting surfaces 794a and the stacking surface 794b must be
wider than EE so that the threaded fastening bores 796 and the
through bores 797 do not intersect and interfere with one
another.
[0148] FIG. 25b illustrates a further embodiment of the block,
fluid-flow connector for connecting two or more flanged connectors
130 (such as described above). FIG. 25b shows a "stackable" header
module 800 on which multiple four-bolt connectors 130 can be
fastened and interconnected with a common fluid-flow channel. The
header module 800 has a port face mounting surface 804a, a stacking
surface 804c, and a mounting surface 804b. An additional block
connector can be fastened to or "stacked" on the stacking surface
804c. Each surface of the block has a width W and a height H.
[0149] A common fluid-flow channel 802 extends from the port face
mounting surface 804a to the stacking surface 804c and multiple
ports on the mounting surface 804b. The fluid-flow ports have a
nominal diameter D1 at the port face mounting surface 804a, the
mounting surface 804b, and the stacking surface 804c.
[0150] A plurality of threaded fastening bores 806 are located on
each surface proximate each port. In the embodiment illustrated in
FIG. 25b, the port face mounting surface has a width W1 which is
greater than the dimension EE so that the threaded fastening bores
806 and the through bores 807 do not intersect and interfere with
one another. The mounting surface 804b has a width W2 which is less
than or equal to two times dd. In this embodiment, the dimension dd
is less than FF, and preferably less than or equal to the dimension
EE corresponding to the nominal diameter D1.
[0151] The two-bolt block connectors are illustrated and described
above as "right-hand" connectors since the two threaded fastening
bores, e.g. 406, 446, 726, are located in the upper right corner
and lower left corner of each mounting surface. However, it should
be appreciated that the connector 30 can be "left-handed" with
fastening bores in the upper left and lower right corners.
[0152] FIGS. 26-28 illustrate Elbow 410, Tee 450, and Cross 490
modular connectors designed to connect with the flanged four-bolt
connectors 130 described above. The Elbow connector 410 has a
single-piece, block construction with a central channel 412
extending therethrough. The central channel extends inwardly from a
first mounting surface 414a, bends 90-degrees, and exits through a
second mounting surface 414b. The channel has ports on each
mounting surface. The connector 410 has two pair of threaded bores
416 diagonally located on opposed sides of the each port 412. The
Tee 450 and Cross 490 connectors have a construction similar to the
Elbow connector 410 but have additional mounting surfaces and a
differently shaped fluid-flow channel. Flanged four-bolt connectors
130 can be mounted on the mounting surfaces
414a,414b/454a,454b,454c/494a- ,494b,494c,494d of the Elbow 410,
Tee 450, and Cross 490 connectors, respectively, by inserting
socket head bolts through the connector tabs 134 and into the
threaded bores 416, 456, 496.
[0153] FIGS. 26-28 illustrate that the width of at least one
mounting surface 414a/454a/494a,494d is less than the recommended
pad width FF established in SAE standard J518. Preferably, the
width of the mounting surfaces 414a/454a/494a,494d is equal to EE,
the minimum pad width specified in SAE standard J518 corresponding
to the nominal diameter of the central port. The mounting surface
width may be less than EE provided the width of the mating flanged
connector 130 is less then the width of the mounting surface,
thereby maintaining a widthwise differential between the mounting
surface and the flange connector.
[0154] FIGS. 26-28 also illustrate that the other mounting surfaces
414b/454b,454c/494d,494c are wider than the dimension EE.
Otherwise, the threaded bores 416/456/496 would intersect and
interfere with one another. Therefore, additional widthwise
material must be provided to prevent interference.
[0155] FIGS. 29-31 illustrate Elbow 430, Tee 470, and Cross 510
modular connectors which can be "stacked" and connected to one or
more four-bolt connectors 130 described above. In contrast with the
connectors 410/450/490 described above, the connectors 430/470/510
have a designated port face mounting surface 434a/474a/514a having
an annular recess 433/473/513 formed therein designed to receive an
"O" ring which seals the block connector on a desired port face
24.
[0156] The connectors 430/470/510 have two pairs of through bores
437/477/517 diagonally located on opposed sides of the port
432/472/512. A four-bolt flanged connector 130 or additional block
connector can be fastened to or "stacked" on the stacking surface
474b/514b by inserting fastening bolts through the through bores
477/517, and into threaded bores on a desired port face 24.
Four-bolt flanged connectors 130 can also be mounted on the
mounting surfaces 434c/474c/514c,514d which have threaded bores
436/476/516 diagonally located on opposite sides of the port
432/472/512.
[0157] FIGS. 29-31 illustrate that the width W2 of the mounting
surfaces 434c/474c/514c,514d is less than the recommended pad width
FF established in SAE standard J518. Preferably, the width of the
mounting surfaces 434c/474c/514c,514d is equal to EE but may be
less than EE provided the width of the mating flange connector 130
is less than the width W2 of the mounting surface. FIGS. 29-31 also
illustrate that the port face mounting surface 434a/474a/514a is
wider than the dimension EE. Otherwise, the through bores
437/477/517 and the threaded bores 436/476/516 would intersect and
interfere with one another.
[0158] FIGS. 32 and 33 illustrate adapters in accordance with an
embodiment of the invention. The adapters 520/540 are used to
retain two-bolt or four-bolt sandwich modules and provide a
two-bolt flange port for adding new components to the fluid-flow
circuit. The adapters 520/540 are also used to adapt to the
alternate two-port tapped locations.
[0159] The adapters 520/540 have a single-piece, block construction
with a central port 522/542 extending therethrough. The central
port 522/542 extends through the adapter from a port face mounting
surface 524a/544a to a mounting surface 524b/544b. Each adapter
520/540 has a pair of threaded bores 526/546 diagonally located on
opposed sides of the central port.
[0160] The adapters also include a pair of through bores 527/547
diagonally located on opposed sides of the central port and
extending entirely through the adapters 520/540. One end of the
aperture has an enlarged-diameter counterbore 527a/547a formed in
one of the port face mounting surfaces 524b/544b.
[0161] FIGS. 34-44 illustrate further connectors in accordance with
the present invention. FIGS. 34-35 illustrate a 180-degree flow
turn around flanged modular connector 560. FIGS. 36-37 illustrate a
180-degree flow turn around block modular connector 580.
[0162] The one-piece, 180-degree flow turn around connectors
560/580 have a single port face mounting surface 564/584 having a
width W and a height H. Input and output fluid-ports are located on
the port face mounting surface and a 180-degree fluid-flow channel
562/582 connects the input and output ports. The ports have a
nominal diameter D1 at the port face mounting surface.
[0163] The flanged connector 560 has a height H which is slightly
larger than O. The block connector 580 has a height H which is less
than or equal to O.
[0164] Each connector 560/580 has a pair of through bores 567/587
diagonally located on opposed sides of the input port and output
port. The through bores 567/587 receive bolts for mounting the
connectors 560/580 to a port face.
[0165] FIGS. 34-37 illustrate that the width W of the 180-degree
flow turn around connectors 560/580 is less than twice the
dimension FF, preferably less than twice the minimum pad width EE
of SAE standard J518 described in detail above. The port centers
are separated by the dimension dd. The dimension dd is less than
FF, and preferably equal to EE. The dimension dd may also be less
than EE provided the width W of the connector attached thereto is
less than the dimension dd. For example, the turn around connectors
560/580 can be mounted on two adjacently-connected (stacked) block
connectors such as described above having the pad width EE or on a
block connector having an enlarged width and multiple fluid-flow
ports (described below).
[0166] FIGS. 38-39 illustrate an offset flow modular block
connector 600 in accordance with an embodiment of the invention.
The offset flow connector 600 has a single-piece, block
construction similar to the turn around block connector 580
described above except that the central channel extends inwardly
from a first port face mounting surface 604a and exits through a
second port face mounting surface 604b. While the overall width W
of the connector 580 is greater than 2 times EE, the connector 580
can be connected to two fluid flow ports 6 separated by the port
dimension dd. The dimension dd is less than FF, and preferably
equal to EE. The dimension dd may also be less than EE provided the
width W of the flanged connector attached thereto is less than the
dimension dd.
[0167] FIGS. 40-41 illustrate an in-line divide flow/combine flow
modular connector 620. The connector 620 has a single-piece, block
construction with a central channel 622 extending inwardly from an
input port face mounting surface 624a, dividing internally into two
separate channels which exit on an opposed port face mounting
surface 624b. The connector 620 has a pair of through bores 627
diagonally located on opposed sides of each port on the exit port
face mounting surface 624b. The through bores 627 receive
connecting bolts for mounting the connector to a port face, flange
connector, or block connector. The connector 620 also has a pair of
threaded bores 626 diagonally located on opposed sides of the port
on the input port face mounting surface 624a.
[0168] The width W of the connector is preferably equal to, but may
be less than, 2-1/3 times EE. The ports on the output port face
624b are separated by the distance dd which is preferably equal to,
but may be less than, 1-1/3 EE.
[0169] FIGS. 42-44 illustrate a right angle divide flow/combine
flow modular connector 640. The connector 640 has a single-piece,
block construction with a central channel extending inwardly from a
first port face mounting surface 644a, dividing internally into two
separate channels which exit on a second port face mounting surface
644b. The connector 640 has a pair of through bores 647 diagonally
located on opposed sides of each port on the exit port face
mounting surface 644b. The apertures receive connecting bolts for
mounting the connector 640 to a port face. The connector 640 also
has a pair of threaded bores 646 diagonally located on opposed
sides of the port on the input port face mounting surface 644a.
[0170] FIGS. 42-44 illustrate that the width of the first port face
mounting surface 644a of the connector 640 is less than FF,
preferably less than or equal to the minimum pad width EE of SAE
standard J518 described in detail above. FIGS. 42-44 also
illustrate that the distance between the ports centers on the
second port face mounting surface is equal to dd. The dimension dd
is preferably equal to or less than EE. For example, the connector
640 can be mounted on two adjacently-connected (stacked) block
connectors such as described above having the minimum pad width
EE.
[0171] Except in FIG. 45, the modular connectors are illustrated
and described wherein all the fluid-flow channels have a constant
diameter along its length and the ports have the same nominal
diameter D1. However, it should be appreciated to one of ordinary
skill in the art that the modular connectors may have a converging
or diverging fluid flow channel and a plurality of ports having
different nominal diameters. In such a case, the height H of the
connector is determined by the diameter of the largest port in the
connector. The width W1 and W2 of the connector are determined by
the port diameter, or combination of port diameters, on the
respective mounting surfaces. Typically, the width W1 is determined
by the largest port diameter.
[0172] The embodiments shown in FIGS. 34-44 can be made to accept a
four-bolt flanged connector 130 by adding additional threaded
fastening bores. In such embodiments, the dimensions shown in FIGS.
34-44 would be the same except for the embodiment shown in FIGS. 40
and 41. A four-bolt in-line divide flow/combine flow modular
connector would have a width W less than or equal to 3 times EE and
the dimension dd would be equal to 2 times EE.
[0173] FIG. 45 illustrates a modular block connector 900 having
multiple interconnected fluid-flow channels 902 having different
diameters. The connector 900 has a single-piece, block construction
with a fluid-flow channel extending inwardly from a first port face
mounting surface 904a to a second port face mounting surface 904b
having multiple ports thereon. FIG. 45 illustrates how several
two-bolt and four-bolt flange connectors having different sizes can
be fastened to and nested on the second port face mounting surface
904b. FIG. 45 illustrates various dimensions between port centers
corresponding to various sizes specified in SAE standard J518. The
four digit code underneath the various dimensions represents the
pressure series and size of the port as designated in SAE standard
J518.
[0174] The flanged and block connectors described above are
combined to form a compact fluid flow system. The fasteners
employed in connecting either the flanged connectors or modular
block connectors described above should have a minimum tensile
yield of 155,000 p.s.i. which is higher than the Grade 5 minimum
allowed by SAE standard J518.
* * * * *