U.S. patent application number 12/720209 was filed with the patent office on 2010-09-09 for modular lubrication unit.
Invention is credited to Glen Appleby, Donald T. Eadie, David R. Elvidge, Anthony W. Makowsky, Kevin D. Oldknow, Marco Santoro, Steven D. Singleton, Stefan Alexandru Suciu, W. Thomas Urmson, JR..
Application Number | 20100224449 12/720209 |
Document ID | / |
Family ID | 42677245 |
Filed Date | 2010-09-09 |
United States Patent
Application |
20100224449 |
Kind Code |
A1 |
Singleton; Steven D. ; et
al. |
September 9, 2010 |
Modular Lubrication Unit
Abstract
A modular lubrication unit for a rail lubrication distribution
system includes a tank, a pump assembly, and a controller. The pump
assembly is in fluid communication with the tank and the controller
is in communication with the pump assembly for controlling the pump
assembly. The controller is enclosed within a panel and the tank is
self-contained and movable relative to the panel.
Inventors: |
Singleton; Steven D.;
(Sarver, PA) ; Urmson, JR.; W. Thomas; (Valencia,
PA) ; Appleby; Glen; (St-Lazare, CA) ; Eadie;
Donald T.; (Vancouver, CA) ; Oldknow; Kevin D.;
(North Vancouver, CA) ; Santoro; Marco; (North
Vancouver, CA) ; Makowsky; Anthony W.; (North
Vancouver, CA) ; Elvidge; David R.; (North Vancouver,
CA) ; Suciu; Stefan Alexandru; (Laval, CA) |
Correspondence
Address: |
THE WEBB LAW FIRM, P.C.
700 KOPPERS BUILDING, 436 SEVENTH AVENUE
PITTSBURGH
PA
15219
US
|
Family ID: |
42677245 |
Appl. No.: |
12/720209 |
Filed: |
March 9, 2010 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
61158418 |
Mar 9, 2009 |
|
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Current U.S.
Class: |
184/3.1 |
Current CPC
Class: |
B61K 3/00 20130101 |
Class at
Publication: |
184/3.1 |
International
Class: |
B61K 3/00 20060101
B61K003/00 |
Claims
1. A modular lubrication unit for a rail lubrication distribution
system comprising: a tank; a pump assembly in fluid communication
with the tank; and a controller in communication with the pump
assembly for controlling the pump assembly, the controller being
enclosed within a panel, wherein the tank is self-contained and
movable relative to the panel.
2. The modular lubrication unit of claim 1, wherein the pump
assembly is attached to the tank via a connector.
3. The modular lubrication unit of claim 2, wherein the pump
assembly comprises a pump and a motor, the pump assembly being
positioned within an enclosure.
4. The modular lubrication unit of claim 1, wherein the pump
assembly is attached to a side of the tank.
5. The modular lubrication unit of claim 1, wherein the panel is
spaced from the tank.
6. The modular lubrication unit of claim 5, wherein the panel is
positioned on a pair of spaced apart legs.
7. The modular lubrication unit of claim 1, wherein a bottom of the
tank defines a recess.
8. The modular lubrication unit of claim 1, wherein the tank is
positioned on a support, the support and the bottom of the tank
defining a recess.
9. The modular lubrication unit of claim 8, wherein the pump
assembly is positioned within an enclosure, the enclosure being
attached to the bottom of the tank within the recess.
10. The modular lubrication unit of claim 3, wherein the enclosure
is supported via a bracket.
11. A modular lubrication unit for a rail lubrication distribution
system comprising: first and second tanks, the first tank being
spaced from the second tank; first and second pump assemblies, the
first pump assembly being in fluid communication with the first
tank and the second pump assembly being in fluid communication with
the second tank; a controller in communication with the first and
second pump assemblies for controlling the first and second pump
assemblies, the controller being enclosed within a panel, wherein
the first and second tanks are self-contained and movable relative
to the panel.
12. The modular lubrication unit of claim 11, wherein the first
pump assembly is attached to the first tank via a connector and the
second pump assembly is connected to the second tank via a
connector.
13. The modular lubrication unit of claim 12, wherein each pump
assembly comprises a pump and a motor, each pump assembly being
positioned within an enclosure.
14. The modular lubrication unit of claim 11, wherein the first
pump assembly is attached to a side of the first tank, and the
second pump assembly is attached to a side of the second tank.
15. The modular lubrication unit of claim 14, wherein the panel is
positioned between the first and second pump assemblies.
16. The modular lubrication unit of claim 15, wherein the first and
second pump assemblies are supported by first and second
brackets.
17. The modular lubrication unit of claim 16, wherein the panel is
positioned on a pair of spaced apart legs.
18. A method comprising: providing a tank, a pump assembly, and a
controller; positioning a pump and a motor within an enclosure to
define the pump assembly; connecting the pump assembly to the tank
such that the pump assembly is in fluid communication with the
tank; positioning the controller within a panel; positioning the
panel at a location that is adjacent to and spaced from the tank;
actuating the pump assembly via the controller to supply lubricant
from the tank to a rail lubrication distribution system.
19. The method of claim 18, further comprising: removing the pump
assembly and replacing the pump assembly with a different pump
assembly.
20. The method of claim 19, further comprising: removing the tank
by moving the tank relative to the panel and replacing the tank
with a different tank.
Description
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This application claims the benefit of U.S. Provisional
Application No. 61/158,418, filed Mar. 9, 2009, the entire content
of which is hereby incorporated by reference.
BACKGROUND OF THE INVENTION
[0002] 1. Field of the Invention
[0003] The present invention relates to lubrication of railroad
tracks and, more particularly, to a modular lubrication unit for
supplying lubricant, such as grease, to railroad rails.
[0004] 2. Description of Related Art
[0005] In the operation of railroads, it has long been the practice
to apply lubricant or friction modifier materials onto railroad
rails, such as to the top of the rails or sides of the rails at
curves, turnouts, switches, and in some cases, the section of a
track immediately before a switch, and periodically spaced along
the length of the track. Such lubricants and friction modifier
materials, such as grease, can either reduce or increase the
friction where necessary to improve train performance and reduce
wear on both the rails and the train wheels. Lubricant is typically
pumped from a nearby central pump station to a rail applicator
device for applying lubricant to the railroad rails. Such rail
applicator devices are disclosed in U.S. Pat. No. 5,394,958, which
is hereby incorporated by reference. The pump station, which is
typically housed in a small enclosure, generally includes a tank
and at least one pump that draws lubricant from the tank. The pump
is typically mounted to a wall of the enclosure, wherein access to
the pump for maintenance purposes is easily attainable.
[0006] In the railroad industry, railroads typically have different
priorities and solutions to their specific problems. Oftentimes
lubricant may be needed at different locations along the railroad
track that was not contemplated during the design stage of the
railroad. Because the prior art pump stations are integrated as one
complete unit, a new pump station along with an enclosure would
have to be provided. If more lubricant is required at another
location of a railroad track or even at the same location, a second
complete lubrication unit may have to be installed. Either another
small enclosure would have to be installed, or an additional
lubrication pump would have to be positioned within the limited
space of the one enclosure.
SUMMARY OF THE INVENTION
[0007] In one embodiment, a modular lubrication unit for a rail
lubrication distribution system includes a tank, a pump assembly,
and a controller. The pump assembly is in fluid communication with
the tank and the controller is in communication with the pump
assembly for controlling the pump assembly. The controller is
enclosed within a panel and the tank is self-contained and movable
relative to the panel.
[0008] The pump assembly may be attached to the tank via a
connector. The pump assembly may include a pump and a motor with
the pump assembly being positioned within an enclosure. The pump
assembly may be attached to a side of the tank and the panel may be
spaced from the tank. The panel may also be positioned on a pair of
spaced apart legs with a bottom of the tank defining a recess. The
tank may be positioned on a support and the support and the bottom
of the tank defining a recess. The pump assembly may be positioned
within an enclosure with the enclosure being attached to the bottom
of the tank within the recess. The enclosure may be supported via
bracket.
[0009] In a further embodiment, a modular lubrication unit for a
rail lubrication distribution system includes first and second
tanks, first and second pump assemblies, and a controller. The
first tank is spaced from the second tank and the first pump
assembly is in fluid communication with the first tank and the
second pump assembly is in fluid communication with the second
tank. The controller is in communication with the first and second
pump assemblies for controlling the first and second pump
assemblies. The controller is enclosed within a panel, where the
first and second tanks are self-contained and movable relative to
the panel.
[0010] The first pump assembly may be attached to the first tank
via a connection and the second pump assembly may be connected to
the second tank via a connector. Each pump assembly may include a
pump and a motor with each pump assembly being positioned within an
enclosure. The first pump assembly may be attached to a side of the
first tank and the second pump assembly may be attached to a side
of the second tank. The panel may be positioned between the first
and second pump assemblies, where the first and second pump
assemblies are supported by first and second brackets. The panel
may be positioned on a pair of spaced apart legs.
[0011] In another embodiment, a method includes: providing a tank,
a pump assembly, and a controller; positioning a pump and a motor
within an enclosure to define the pump assembly; connecting the
pump assembly to the tank such that the pump assembly is in fluid
communication with the tank; positioning the controller within a
panel; positioning the panel at a location that is adjacent to and
spaced from the tank; and actuating the pump assembly via the
controller to supply lubricant from the tank to a rail lubrication
distribution system. The method may further include removing the
pump assembly and replacing the pump assembly with a different pump
assembly and removing the tank by moving the tank relative to the
panel and replacing the tank with a different tank.
BRIEF DESCRIPTION OF THE DRAWINGS
[0012] FIG. 1 is a perspective view of a modular lubrication unit
according to one embodiment of the present invention;
[0013] FIG. 2 is a top view of the modular lubrication unit shown
in FIG. 1;
[0014] FIG. 3 is a side view of the modular lubrication unit shown
in FIG. 1;
[0015] FIG. 4 is a front view of the modular lubrication unit shown
in FIG. 1;
[0016] FIG. 5 is a perspective view of the modular lubrication unit
shown in FIG. 1, showing a door in the closed position;
[0017] FIG. 6 is a perspective view of a pump assembly of the
modular lubrication unit shown in FIG. 1;
[0018] FIG. 7 is a side view of the pump assembly shown in FIG.
6;
[0019] FIG. 8 is a front view of the pump assembly shown in FIG.
6;
[0020] FIG. 9 is top view of the pump assembly shown in FIG. 6;
[0021] FIG. 10 is a side view of the pump assembly shown in FIG. 6,
showing the interior of an enclosure;
[0022] FIG. 11 is a front view of the pump assembly shown in FIG.
6, showing the interior of an enclosure;
[0023] FIG. 12 is top view of the pump assembly shown in FIG. 6,
showing the interior of an enclosure;
[0024] FIG. 13 is a perspective view of a modular lubrication unit
according to a further embodiment of the present invention;
[0025] FIG. 14 is a side view of the modular lubrication unit shown
in FIG. 13;
[0026] FIG. 15 is a front view of the modular lubrication unit
shown in FIG. 13;
[0027] FIG. 16 is a top view of the modular lubrication unit shown
in FIG. 13;
[0028] FIG. 17 is a perspective view of a pump assembly of the
modular lubrication unit shown in FIG. 13;
[0029] FIG. 18 is a side view of the pump assembly shown in FIG.
17;
[0030] FIG. 19 is a front view of the pump assembly shown in FIG.
17;
[0031] FIG. 20 is a top view of the pump assembly shown in FIG.
17;
[0032] FIG. 21 is a is a side view of the pump assembly shown in
FIG. 17, showing the interior of an enclosure;
[0033] FIG. 22 is a front view of the pump assembly shown in FIG.
17, showing the interior of an enclosure;
[0034] FIG. 23 is a top view of the pump assembly shown in FIG. 17,
showing the interior of an enclosure;
[0035] FIG. 24 is a perspective view of a modular lubrication unit
according to another embodiment of the present invention;
[0036] FIG. 25 is a top view of the modular lubrication unit shown
in FIG. 24;
[0037] FIG. 26 is a front view of the modular lubrication unit
shown in FIG. 24;
[0038] FIG. 27 is a side view of the modular lubrication unit shown
in FIG. 24;
[0039] FIG. 28 is a side view of modular lubrication unit according
to yet another embodiment of the present invention, showing the
interior of an enclosure;
[0040] FIG. 29 is a front view of the modular lubrication unit
shown in FIG. 28;
[0041] FIG. 30 is a perspective view of a modular lubrication unit
according to a further embodiment of the present invention; and
[0042] FIG. 31 is a side view of the modular lubrication unit shown
in FIG. 30.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0043] For purposes of the description hereinafter, spatial
orientation terms, if used, shall relate to the referenced
embodiment as it is oriented in the accompanying drawing figures or
otherwise described in the following detailed description. However,
it is to be understood that the embodiments described hereinafter
may assume many alternative variations and embodiments. It is also
to be understood that the specific devices illustrated in the
accompanying drawing figures and described herein are simply
exemplary and should not be considered as limiting.
[0044] Referring to FIGS. 1-12, one embodiment of a modular
lubrication unit 10 for supplying pressurized lubricant, such as
grease or friction modifying material, is provided. The modular
lubrication unit 10 supplies lubricant to an applicator device (not
shown) for application of the lubricant onto the railroad rails.
The lubrication unit 10 includes a lubricant tank 12, a pump
assembly 14 attached to and in fluid communication with the tank 12
and a controller 16 in communication with the pump assembly 14 for
supplying the lubricant to the railroad rails. The controller 16 is
electronically connected to the pump assembly 14 via a cable 17 for
controlling the pump assembly 14. The tank 12 has spaced-apart legs
18 beneath a bottom 19 of the tank 12 defining a recess 20
therebetween, although the tank 12 may also have a flat bottom or
other suitable bottom configurations. The recess 20 enables the
tank 12 to be easily moved, such as via the forks of a forklift
truck received within the recess 20. The tank 12 may also be
positioned on a support 22, such as channel bars, having channels
24 (shown in FIGS. 13-16) for receiving the forks of a forklift
truck within the channels 24. The bottom 19 of the tank 12 and the
support 22 also define a recess 26. The tank 12 may also be a tote.
Such tanks or totes may have various sizes and shapes. The tank 12
may also include a funnel-shaped insert (not shown) received
therein for funneling lubricant toward a bottom outlet of the tank.
Further, a tank enclosure (not shown) may also be used to house the
tank. The tank 12 is self-contained and movable relative to the
panel 42, such that the tank 12 can be readily replaced with a
different tank for containing a different type of lubricant, if
required. The different tank may be a different shape or size than
the tank 12 to hold a different volume of lubricant than the tank
12. The tank 12 may be readily separated from the panel 42 and pump
assembly 14 by, for example, removing a mechanical fastener
arrangement that secures the tank 12 relative to the panel 42 and
the pump assembly 14.
[0045] Referring to FIGS. 6-12, the pump assembly 14 may include a
pump 30 and a motor 32 attached thereto. The pump assembly 14 is
shown housed in an enclosure 34 having openings O therein for
receiving inlet and outlet tubing or piping (not shown). The
enclosure 34 may be attached to a holding bracket 38 with the
holding bracket 38 supporting the enclosure 34. The bracket 38 may
also be attached directly to the tank 12 using any suitable
fastening arrangement, such as mechanical fastening, for easy
removal from the tank 12. The pump assembly 14 is in fluid
communication with the tank 12 via a connector 36 that attaches the
pump assembly 14 to the tank. The present invention permits
different pump assemblies 14 to be utilized with the tank 12. The
connector 36 is attached to a side 40 of the tank 12, although the
connector may be attached to other portions of tank or may be
attached to the tank 12 through piping. The pump assembly 14 is
protected from the environment via the enclosure 34, which may
provide protection against corrosion, moisture and other hazards
that can damage or reduce the normal life cycle of the pump
assembly 14. For example, the enclosure 34 can be made of a
polymeric material or corrosion-resistant metal.
[0046] Referring to FIGS. 1-5, the controller 16 is typically
housed in an electrical box or panel 42 having an access door 44
therein for easy access to the controls by an operator. The access
door 44 has an open position (shown in FIG. 1) and a closed
position (shown in FIG. 5). The lubrication unit 10 may include
timers, flow meters, level sensors, manifolds, flow dividers and
microprocessors, and the like, for controlling the amount and
frequency of lubricant supplied to the railroad rails via the
controller 16. The panel 42 is positioned adjacent to and spaced
from the tank 12, although the panel 42 may also be directly
attached to the tank 12. The panel 42 includes channels or legs L
whereby the forks of a forklift truck can be inserted therein thus
lifting and/or transporting the panel 42. The present invention
permits different controllers to be used with pump assemblies 14
and tanks 12 creating a modular design, where the present invention
creates a true modular arrangement.
[0047] In operation, lubricant from the tank 12 is pumped out of
the tank 12 from a bottom side thereof via the pump assembly 14
thus supplying pressurized lubricant to a rail applicator device
and onto railroad rails. An operator (not shown) can program the
controller 16 via the access door 44 and control the flow rates
and/or frequency of application. The controller 16 may be attached
to the tank 12 or adjacent to and spaced from the tank 12. The
panel 42 and controller 16 are self-contained and may be readily
separated from the tank 12. When transporting the unit 10, the
un-attached panel 42 and controller 16 can be transported
separately from the tank 12.
[0048] FIGS. 13-23 show a further embodiment of a modular
lubrication unit 10A that is similar the lubrication unit 10. Like
reference numerals are used for like parts. The lubrication unit
10A also includes a lubrication tank 12, a pump assembly 14 and
controller 16 which is similar to lubrication unit 10. However, the
pump assembly 14 of lubrication unit 10A is attached to the bottom
19 of the tank 12. In particular, the pump assembly 14 is
positioned within the enclosure 34 with the enclosure 34 being
secured to the bottom 19 of the tank 12. Typically, this type of
arrangement will be used with highly viscous liquids such as
grease. Although not shown, a holding bracket may be used to
support the pump assembly 14 or to attach the pump assembly 14 to
the bottom of the tank 12. The support 22, such as channel bars,
positioned beneath the bottom 19 of the tank 12 raises the tank 12
off of the ground level and defines the recess 26 such that the
pump assembly 14 is also spaced away from the ground level and
positioned within the recess 26. Access to the pump assembly 14 for
maintenance purposes may be accomplished by lifting the unit 10A
with the forks of a forklift truck. In this embodiment, the tank 12
can also have a cone-shaped insert (not shown) for funneling
lubricant to the bottom of the tank 12 into an inlet of the pump
assembly 14.
[0049] FIGS. 24-27 show another embodiment of a modular lubrication
unit 10B that is similar to lubrication unit 10A. Like reference
numerals are used for like parts. Lubrication unit 10B includes
first and second tanks 12 with the tanks 12 being spaced from each
other. First and second pump assemblies 14 are attached to the
sides 40 of the respective tanks 12 with the first and second pump
assemblies being in fluid communication with the respective tanks
12. A controller 16 is in communication with the first and second
pump assemblies 14 for controlling the first and second pump
assemblies 14. The controller 16 is enclosed within a panel 42. The
first and second tanks 12 are self-contained and movable relative
to the panel 42 such that the tanks 12 can be readily replaced with
different tanks for containing different types of lubricant if
required. The first and second pump assemblies 14 may be supported
by brackets 38. The panel 42 and controller 16 are positioned
between the first and second pump assemblies 14 and are positioned
on spaced-apart legs L. The controller 16 controls the first and
second pump assemblies 14, although the controller may control one
or more pump assemblies for distribution of lubricant from one or
more tanks.
[0050] In particular, one of the tanks 12 may contain a first
lubricant and the other tank 12 may include a second lubricant. For
example, the first lubricant may be a summer-formulated lubricant
and the second lubricant may be a winter-formulated lubricant. The
controller 16 may be in communication with various temperature
sensors (not shown) to determine the temperature conditions. During
colder weather, the controller 16 may actuate the pump assembly 14
connected to the tank 12 that contains the winter-formulated
lubricant for distribution to the rail lubrication equipment.
During warmer weather, the controller 16 may actuate the pump
assembly 14 connected to the tank that contains the
summer-formulated lubricant for distribution to the rail
lubrication equipment. The pump assemblies 14 may be similar, but
can be operated differently based on the lubricant the pump
assemblies 14 are pumping. For instance, the pump assemblies 14 may
have different pumping intervals and cycles depending on the type
of lubricant being pumped. Accordingly, the controller 16 can
selectively distribute a suitable lubricant from the plurality of
tanks 12 based on the particular temperature conditions.
[0051] FIGS. 28 and 29 show yet another embodiment of a modular
lubrication unit 10C that is similar to the lubrication units 10,
10A, and 10B. Like reference numerals are used for like parts.
Lubrication unit 10C includes a tank 12, which is shown as a tote,
a pump assembly 14, and a controller 16. The controller 16 and the
pump assembly 14 are positioned within a panel 42 rather than
providing a separate enclosure for the pump assembly 14. The pump
assembly 14 is connected to and in fluid communication with the
tank via piping 48. The controller 16 is connected to the pump
assembly 14 to allow the controller 16 to control the operation of
the pump assembly 14.
[0052] FIGS. 30 and 31 show a further embodiment of a modular
lubrication unit 10D that is similar to the lubrication units 10,
10A, 10B, and 10C. Like reference numerals are used for like parts.
Lubrication unit 10C includes a tank 12, a pair of pump assemblies
14, and a controller 16. The controller 16 is positioned within a
panel 42 as discussed above in connection with lubrication units
10, 10A, 10B, and 10C. The panel 42 is secured to the upper portion
of the tank 12 to define a space 50 beneath the panel 42. Although
not shown, the controller 16 is connected to the pump assemblies 14
to allow the controller 16 to control the operation of the pump
assemblies 14. Each of the pump assemblies 14 are positioned within
separate enclosures 34 with the pump assemblies 14 being connected
to and in fluid communication with the tank 12 via a connector 36.
In particular, the connector 36 of the lubrication unit 10D is a
T-shaped piping assembly that is secured to a single outlet O of
the tank 12 with each pump assembly 14 being separately connected
to the connector 36. The single tank 12 of the lubrication unit 10D
may feed multiple tracks of lubrication equipment with one of the
pump assemblies 14 supplying lubricant to a first set of
lubrication equipment and the other pump assembly 14 supplying
lubricant to a second set of lubrication equipment.
[0053] Although not shown, the modular lubrication units 10, 10A,
10B, 10C may be powered via a DC solar power arrangement, through
connection via cabling to an AC or DC power source, or through any
other suitable power source options.
[0054] In a further embodiment, a method includes providing a tank,
a pump assembly, and a controller; positioning a pump 30 and a
motor 32 within an enclosure 34 to define the pump assembly 14;
connecting the pump assembly 14 to the tank 12 such that the pump
assembly 14 is in fluid communication with the tank 12; and
positioning the controller 16 within a panel 42. The method also
may include positioning the panel 42 at location adjacent to and
spaced from the tank 12 and actuating the pump assembly 14 via the
controller 16 to supply lubricant from the tank 12 to a rail
lubrication distribution system. The method may also include
removing the pump assembly 14 and replacing the pump assembly with
a different pump assembly 14 and removing the tank 12 by moving the
tank 12 relative to the panel 42 and replacing the tank with a
different tank 12. In particular, the pump assembly 14 and tank 12
may be readily removed and replaced with different pump assemblies
or tank to accommodate various types of lubricants.
[0055] The advantage of having self-contained tanks with pump
assemblies mounted thereto is that the tank and/or pump assembly
can be switched out for another self-contained tank and pump
assembly having different grade lubricants therein. Hence, a
modular design is provided that allows a lubrication system to be
customized based upon the customer's needs. The present invention
provides a modular arrangement with a tank 12, pump assembly 14,
and controller 16 creating a modular lubrication unit, where the
controller 16, pump assembly 14, and tank 12 can be formed from
different size tanks, size pumps, and controllers depending on the
requirements at the point of application. By ensuring that the
customer can optimize the lubrication unit to suit their specific
needs, the modular unit will increase the effectiveness of the
system. That is, specific tanks, pumps and controllers can be
connected together to result in a specific lubrication system. As a
result, inventory can be minimized via the present modular system.
Further, the self-contained lubrication units can be easily
transported or shipped anywhere on a railroad line and then easily
installed at the site where the lubrication system is to be
installed.
[0056] This invention has been described with reference to the
preferred embodiments. Obvious modifications and alterations will
occur to others upon reading and understanding the preceding
detailed description. It is intended that the invention be
construed as including all such modifications and alterations.
* * * * *