U.S. patent application number 16/630980 was filed with the patent office on 2020-07-16 for jet regulator.
This patent application is currently assigned to Neoperl GmbH. The applicant listed for this patent is Neoperl GmbH. Invention is credited to Gerhard BLUM, Alexander STEIN.
Application Number | 20200224395 16/630980 |
Document ID | / |
Family ID | 62986071 |
Filed Date | 2020-07-16 |
United States Patent
Application |
20200224395 |
Kind Code |
A1 |
STEIN; Alexander ; et
al. |
July 16, 2020 |
JET REGULATOR
Abstract
A jet regulator (104) including a jet regulator housing (1)
having an outer thread (2) on the outer circumference of the
housing for screwing into an internal thread (3) in the water
outlet (4) of a sanitary outlet fitting. The jet regulator housing
(1) has a thread profile as an outer thread (2) on the housing
outer circumference, deviating at least in sections from a thread
groove that is continuously spiraling around a cylindrical wall,
which outer thread cooperates in this region in a self-adapting
manner with the internal thread (3) provided in the water outlet
(4) and/or has at least one cross-sectional widening (6, 7) which
is made of the same material as the housing section of the jet
regulator housing (1) supporting the outer thread (2) and which is
integrally formed thereon, and which can be sealingly placed on the
water outlet (4) on the end side and/or on the inner circumference
side.
Inventors: |
STEIN; Alexander; (Ihringen,
DE) ; BLUM; Gerhard; (Gutach, DE) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Neoperl GmbH |
Mulheim |
|
DE |
|
|
Assignee: |
Neoperl GmbH
Mullheim
DE
|
Family ID: |
62986071 |
Appl. No.: |
16/630980 |
Filed: |
July 13, 2018 |
PCT Filed: |
July 13, 2018 |
PCT NO: |
PCT/EP2018/069074 |
371 Date: |
January 14, 2020 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
E03C 1/084 20130101;
E03C 2001/026 20130101; B05B 7/0425 20130101; E03C 1/086 20130101;
E03C 1/08 20130101 |
International
Class: |
E03C 1/086 20060101
E03C001/086; E03C 1/084 20060101 E03C001/084 |
Foreign Application Data
Date |
Code |
Application Number |
Sep 6, 2017 |
DE |
202017105378.4 |
Claims
1. A jet regulator (101, 104, 111, 115) comprising: a jet regulator
housing (1) having a housing outer circumference on which an outer
thread (2) is located that is adapted for screwing into an inner
thread (3) in a water outlet (4) of a sanitary outlet fitting, the
outer thread includes a thread profile that deviates at least in
regions from a thread groove extending continuously in a helical
manner about a cylindrical wall, said outer thread (2) cooperates
in said regions in a self-adapting manner with the inner thread (3)
provided in the water outlet (4).
2. The jet regulator as claimed in claim 1, wherein a sub-region of
the jet regulator housing (1), disposed on an outflow side of the
outer thread (2), is angled in a direction that is adapted to be
toward an inner circumference of the water outlet (4) such a way
that a drainage annular space (8) is adapted to be formed between
said housing sub-region and the inner circumference of the water
outlet.
3. A jet regulator (127, 130) comprising: a jet regulator housing
(1) having a housing outer circumference on which an outer thread
(2) is located that is adapted for screwing into an inner thread
(3) in a water outlet of a sanitary outlet fitting, and further
including on the housing outer circumference, at least one
cross-sectional widening (6, 7) which is materially identical with
a housing portion of the jet regulator housing (1) that supports
the outer thread (2) and which is formed integrally thereon, and
which said cross-sectional widening is adapted to bear sealingly on
at least one of an end face or an inner circumferential face of the
water outlet (4), a housing sub-region of the jet regulator housing
(1), disposed on an outflow side of the outer thread (2), is angled
in a direction that is adapted to be toward an inner circumference
of the water outlet (4) such that a drainage annular space (8) is
adapted to be formed between said housing sub-region and the inner
circumference of the water outlet.
4. The jet regulator as claimed in claim 3, wherein the jet
regulator (101, 104, 111, 115, 127, 130) is configured as a jet
aerator which mixes water flowing therethrough with ambient air and
which for this purpose includes, in a housing portion of the jet
regulator housing (1) disposed on the outflow side of the outer
thread (2), at least one aeration opening (9) that is provided on
the housing circumference or on an housing end face of the jet
regulator housing (1).
5. The jet regulator as claimed in claim 3, wherein the jet
regulator housing (1) has at least two housing parts (10, 11) that
are connectable to each other.
6. The jet regulator as claimed in claim 5, wherein a first of the
at least two housing parts (10) disposed on the outflow side
supports the outer thread (2).
7. The jet regulator as claimed in claim 6, wherein an outflow-side
first housing part (10) is connectable on an inflow side to a
second one of the at least two housing parts (11) of the jet
regulator housing (1), said second housing part (11) supports a jet
splitter which is adapted to split the water flowing therethrough
into a multiplicity of individual jets.
8. The jet regulator as claimed in claim 7, wherein the jet
splitter comprises a diffuser which has a cup-shaped jet splitter
insert (12) which, on a cup circumference of said cup shape, has a
plurality of splitter openings (13), and said jet splitter insert
(12) has a cup base (14) configured as an impact face that is
adapted to deflect the inflowing water toward the splitter openings
(13).
9. The jet regulator as claimed in claim 8, wherein the second
housing part (11) engages around the jet splitter insert (12), and
the second housing part (11) tapers, at least in a region of the
cylinder openings (13), such a way that an annular gap (15) is
formed between the jet splitter insert (12) and a housing inner
circumference of the second housing part (11), said annular gap
(15) tapers on an outflow side toward an annular opening (16) that
opens into a housing interior.
10. The jet regulator as claimed in claim 3, further comprising a
sleeve-shaped guide wall (17) is provided in the jet regulator
housing (1), and least one aeration duct (18) between a housing
inner circumference of the jet regulator housing (2) and the guide
wall (17), said which aeration duct (18) leads to a housing
interior from at least one aeration opening (9) disposed on the
housing outflow side.
11. The jet regulator as claimed in claim 10, further comprising an
outflow-side housing end edge of the jet regulator housing (1)
being configured as a lip seal (21) which is adapted to bear on the
inner circumference of the water outlet (4) or lies close to the
inner circumference of the water outlet (4).
12. The jet regulator as claimed in claim 10 or 11, further
comprising at least one drainage opening (22) is provided in a
sub-region of the housing wall of the jet regulator housing (1)
disposed between the outflow-side housing end face and the outer
thread (2), said drainage opening (22) leads from the drainage
annular space (8) to the aeration duct (18).
13. The jet regulator as claimed in claim 13, further comprising a
mesh or net structure (23) comprising webs that intersect one
another at intersection nodes formed integrally on the guide wall
(17) on the outflow side.
14. The jet regulator as claimed in claim 13, wherein the guide
wall (17) is connected in a rotationally fixed to the jet regulator
housing (1), and at least one tool engagement face for a driving
tool is provided on at least one of the guide wall (17) or on the
mesh or net structure (23).
15. The jet regulator as claimed in claim 14, further comprising at
least one slit-shaped recess (29) adapted for insertion of a coin
used as the driving tool, or of another driving tool, is provided
in the mesh or net structure, said recess (29) is delimited by
opposite slit longitudinal walls that form tool engagement faces
for the driving tool.
16. The jet regulator as claimed in claim 3, wherein an outer
envelope body, formed by the outer thread (2) on the jet regulator
housing (1) adapted to be screwed into the cylindrical inner
thread, widens toward the outflow side.
17. The jet regulator as claimed in claim 3, further comprising at
least one molding (26, 28) which serves as a liquids bulkhead and
which projects into at least one thread groove of the outer thread
(2) on the housing outer circumference of the jet regulator housing
(1).
18. The jet regulator as claimed in claim 17, wherein the at least
one molding (26, 28) reaches as far as the envelope body enveloping
the outer thread (2) or at least in regions projects beyond this
envelope body.
19. The jet regulator as claimed in claim 18, wherein the at least
one molding is configured as a separation wall (26) that extends
across at least two neighboring thread grooves of the outer
thread.
20. The jet regulator as claimed in claim 19, wherein the at least
one separation wall (26) runs approximately axially parallel to a
housing longitudinal axis of the jet regulator housing (1).
21. The jet regulator as claimed in claim 19, wherein the at least
one molding (28) is cam-shaped, and the cam-shaped molding (28) in
the thread groove extends approximately in a groove longitudinal
direction.
22. The jet regulator as claimed in claim 3, wherein the thread
profile of the outer thread (2), projecting beyond the thread
groove, widens at least in regions to form at least one
cross-sectional widening (6; 7).
23. The jet regulator as claimed in claim 22, wherein the at least
one cross-sectional widening (6; 7) projects like a flange on the
housing outer circumference of the jet regulator housing (1).
24. The jet regulator as claimed in claim 23, wherein the at least
one flange-shaped cross-sectional widening (6; 7) extends, in a
housing circumferential direction of the jet regulator housing,
across at least one drainage opening provided in a sub-region of
the housing wall of the jet regulator housing (1) disposed between
the outflow-side housing end face and the outer thread (2).
25. The jet regulator as claimed in claim 24, wherein the at least
one flange-like cross-sectional widening (6; 7) on the housing
outer circumference of the jet regulator housing is provided
between the outer thread and the at least one drainage opening
(22).
26. The jet regulator as claimed in claim 25, wherein the
flange-like cross-sectional widening (7) is configured as an
annular flange that encircles the jet regulator housing (1).
27. The jet regulator as claimed in claim 26, wherein the at least
one flange-like cross-sectional widening (6; 7) is configured as a
screw-in abutment which is adapted to limit a screwing of the outer
thread (2) into the inner thread (3) in the water outlet (4) of the
outlet fitting.
28. The jet regulator as claimed in claim 3, wherein the jet
regulator (101, 104, 111, 115, 127, 130) is designed free of a
sealing ring and is adapted to be installed makes do without a
sealing ring of elastic material produced separately from the jet
regulator housing (1).
29. The jet regulator as claimed in claim 9, wherein the jet
splitter comprises a perforated plate (30) which has splitter
openings (31).
30. The jet regulator as claimed in claim 29, wherein the splitter
openings (31) taper, at least in regions, in the throughflow
direction.
31. The jet regulator as claimed in claim 30, further comprising
that at least one insert part (32, 33) arranged at a distance
downstream from the jet splitter in the flow direction, said insert
part (32, 33) has a mesh or net structure comprised of webs that
intersect one another at intersection nodes.
32. The jet regulator as claimed in claim 31, wherein the mesh or
net structure (23) provided in the at least one insert part (32,
33) has throughflow openings (24) which have at least one of a
honeycomb-shaped or hexagonal clear opening cross section.
33. The jet regulator as claimed in claim 31, wherein the mesh or
net structure provided in the at least one insert part (32, 33) is
formed from at least two concentrically encircling webs which are
connected to a group of radial webs.
34. The jet regulator as claimed in claim 31, wherein the mesh or
net structure provided in the at least one insert part has a group
of axially parallel first webs which intersect a group of axially
parallel second webs which are disposed at an angle in relation to
said group of axially parallel first webs.
35. The jet regulator as claimed in claim 31, wherein the mesh or
net structure provided in the insert part is formed by mutually
intersecting webs which are disposed at an angle to each other such
that said mesh or net structure is formed from throughflow openings
that are non-uniformly shaped in terms of clear open cross sections
thereof.
Description
TECHNICAL FIELD
[0001] The invention relates to a jet regulator having a jet
regulator housing which, on its housing outer circumference, has an
outer thread for screwing into an inner thread in the water outlet
of a sanitary outlet fitting.
BACKGROUND
[0002] Jet regulators in a wide variety of embodiments have already
been provided for shaping the water flowing out of the water outlet
of a sanitary outlet fitting so as to form a homogeneous and
non-sputtering water jet. To this end, the previously known jet
regulators are mounted in the region of the water outlet on a
sanitary outlet fitting.
[0003] A jet regulator is already known from EP 3 153 633 A1, which
jet regulator, on the housing outer circumference of its jet
regulator housing, has an outer thread with which the jet regulator
housing can be screwed into an inner thread in the water outlet of
a sanitary outlet fitting. In order for the previously known jet
regulator not to have to be sealed by at least one separate sealing
ring made of elastic material in the region of the annular gap
located between the jet regulator housing and the inner
circumference of the water outlet, the outer thread in the case of
the previously known jet regulator is provided directly below at
least one aeration opening which penetrates the housing
circumferential wall of the jet regulator housing, and by way of
which aeration opening, besides the ambient air, the leakage water
which was able to pass the annular gap via the screw connection
between outer thread and inner thread can also be sucked into the
housing interior. As soon as water flows through the previously
known jet regulator and to this extent a negative pressure thereby
arises at the at least one aeration opening of said jet regulator,
the previously known jet regulator is capable of entraining a
partial quantity of the leakage water passing the screw connection
into the housing interior. However, since the aeration openings
potentially extend only across part of the circumference of the jet
regulator housing, there is the risk that the balance of the
leakage water passes the annular gap remaining between the housing
outer circumference of the jet regulator housing and the inner
circumference in the water outlet of the sanitary outlet fitting
and emerges disruptively at the outflow-side end face of the water
outlet.
SUMMARY
[0004] Therefore, there is in particular the object of making
available a jet regulator of the type mentioned at the outset which
is distinguished by significantly improved sealing in the region
between the housing outer circumference of the jet regulator
housing and the inner circumference in the water outlet of the
sanitary outlet fitting.
[0005] In the case of the jet regulator of the type mentioned at
the outset, this object is achieved according to the invention by
the fact that jet regulator housing has, on its housing outer
circumference, a thread profile as outer thread that deviates at
least in regions from a thread groove extending continuously in a
helical manner about a cylindrical wall, which outer thread
cooperates in this region in a self-adapting manner with the inner
thread provided in the water outlet.
[0006] The jet regulator according to the invention has a jet
regulator housing which has an outer thread on its housing outer
circumference. With the outer thread provided on the housing outer
circumference, the jet regulator according to the invention can be
screwed into an inner thread in the water outlet of a sanitary
outlet fitting so as to shape the water emerging there into a
homogenous, non-sputtering and optionally also sparkling soft water
jet. To ensure that the annular zone remaining between the housing
outer circumference of the jet regulator housing and the inner
circumference of the water outlet is sealed off in respect of
uncontrolled emergence of leakage water, provision is made as per
the aforementioned proposal according to the invention that the jet
regulator housing has as the outer thread a thread profile which,
at least in regions, deviates from a thread groove that extends
continuously in a helical manner about a cylindrical wall. In this
thread profile that at least in regions is designed in a deviating
manner, the outer thread interacts in a self-adapting manner with
the inner thread provided in the water outlet, in such a way that
the screw connection provides particularly good sealing in this
region.
[0007] In a refinement according to the aforementioned invention,
provision is made that a housing end edge region of the jet
regulator housing disposed on the outflow side of the outer thread
is angled in the direction toward the inner circumference of the
water outlet in such a way that a drainage annular space is formed
between this housing end edge region and the inner circumference of
the water outlet. Leakage water which, by way of the screw
connection, passes through the annular zone between the housing
outer circumference and the inner circumference of the water outlet
as far as the outflow-side circumference end region of the jet
regulator housing is collected there in a drainage annular space
which is formed between the outflow-side housing end edge region
and the inner circumference of the water outlet.
[0008] The invention also concerns a jet regulator of the
aforementioned type whose jet regulator housing has, on its housing
outer circumference, at least one cross-sectional widening which is
materially identical with the housing portion of the jet regulator
housing that supports the outer thread and which is formed
integrally thereon, and which cross-sectional widening can bear
sealingly on the end face and/or the inner circumferential face of
the water outlet.
[0009] Such a jet regulator is already known from DE 10 2010 023
664 A1. The latter document in fact already describes a sanitary
outlet fitting with a water outlet having an outlet opening defined
by an inner circumferential wall of the outlet fitting, on which
inner circumferential wall an inner thread is provided into which a
sleeve-shaped outlet mouthpiece with an outer thread can be
screwed. A jet regulator configured as an insert cartridge is
insertable into the sleeve-shaped outlet mouthpiece. The outlet
mouthpiece receiving the jet regulator has, below its outer thread
in the screwing-in direction, an annular groove for receiving a
sealing ring, which annular groove is adjoined by a cross-sectional
widening projecting like a flange on the outer circumference. The
outlet mouthpiece can thus be screwed into the inner thread in the
water outlet of the outlet fitting until the flange-like
cross-sectional widening defining the annular groove and serving as
insertion abutment abuts the inner circumferential wall in the
water outlet of the outlet fitting. Although this cross-sectional
widening serving as insertion abutment on the outlet mouthpiece is
able to seal an annular gap remaining between the outer
circumference of the outlet mouthpiece on the one hand and the
water outlet on the other hand, it is unable to eliminate a loss of
leaktightness between the jet regulator housing and the inner
circumference of the outlet mouthpiece.
[0010] In the case of this jet regulator too, there is therefore
the object already mentioned above of achieving considerably
improved sealing in the region between the housing outer
circumference of the jet regulator housing and the inner
circumference in the water outlet of the sanitary outlet
fitting.
[0011] In this previously known jet regulator, this object is
achieved according to the invention in particular by the fact that
a housing sub-region of the jet regulator disposed on the outflow
side of the outer thread is angled in the direction toward the
inner circumference of the water outlet in such a way that a
drainage annular space is formed between this housing sub-region
and the inner circumference of the water outlet.
[0012] The jet regulator configured as per this proposal according
to the invention has a jet regulator housing having at least one
cross-sectional widening which is materially identical with the
housing portion of the jet regulator housing that supports the
outer thread and which is formed integrally thereon, and which
cross-sectional widening can bear sealingly on the end face and/or
the inner circumferential face of the water outlet. According to
the invention, provision is now made that a housing end edge region
of the jet regulator housing disposed on the outflow side of the
outer thread is angled in the direction toward the inner
circumference of the water outlet in such a way that a drainage
annular space is formed between this housing end edge region and
the inner circumference of the water outlet. Leakage water which,
by way of the screw connection, passes through the annular zone
between the housing outer circumference and the inner circumference
of the water outlet as far as the outflow-side circumference end
region of the jet regulator housing is collected there in a
drainage annular space which is formed between the outflow-side
housing end edge region and the inner circumference of the water
outlet. By virtue of these particular design features of the jet
regulator housing, uncontrolled emergence of leakage water through
the annular zone provided between the outer circumference of the
jet regulator housing and the inner circumference of the water
outlet is effectively avoided under almost all operating
conditions, even when the jet regulator according to the invention
is designed without additional elastic sealing rings for axially or
radially sealing the jet regulator housing. With the jet regulator
according to the invention, the abovementioned annular zone is
reliably leaktight even when the inner thread in the water outlet
cannot be produced with high precision, and when the annular
shoulder in the water outlet required for the axial sealing is to
be dispensed with in favor of lower manufacturing complexity in the
production of the outlet fitting.
[0013] By virtue of its particular design features, the jet
regulator according to the invention is comparatively non-sensitive
to furring, even in the region of its jet regulator housing.
Therefore, in a preferred embodiment according to the invention,
provision is made that the jet regulator is configured as a jet
aerator which mixes the water flowing therethrough with ambient air
and which for this purpose, in a housing portion of the jet
regulator housing disposed on the outflow side of the outer thread,
has at least one aeration opening that is provided on the housing
circumference or on the housing end face of the jet regulator
housing.
[0014] Jet-forming structures are required in the housing interior
in order for the jet regulator to be able to positively shape the
water flowing through its jet regulator housing. In order for such
jet-forming structures to be able to be inserted into the jet
regulator housing in a simple manner, it is advantageous if the jet
regulator housing has at least two housing parts that are
connectable to each other, and if a first housing part disposed on
the outflow side supports the outer thread. At least two
neighboring housing parts of the jet regulator housing can then be
connectable to each other non-releasably, but preferably
releasably.
[0015] The water flowing through the jet regulator housing can be
shaped particularly effectively if the outflow-side first housing
part is connectable on the inflow side to a second housing part of
the jet regulator housing, preferably releasably connectable, which
second housing part supports a jet splitter which splits the water
flowing therethrough into a multiplicity of individual jets.
[0016] In a preferred embodiment according to the invention,
provision is made that the jet splitter is designed as a diffuser
which has a cup-shaped jet splitter insert which, on the cup
circumference of its cup shape, has a plurality of splitter
openings, and which has a cup base configured as an impact face
that deflects the inflowing water toward the splitter openings.
[0017] In order for the water flowing into the jet regulator
housing to first be divided into individual jets and in order then
for the individual jets to be accelerated in such a way that a
negative pressure arises at the outflow side of the diffuser, it is
advantageous if the second housing part engages around the jet
splitter insert, and if the second housing part conically tapers,
at least in the region of the cylinder openings, in such a way that
an annular gap is formed between the jet splitter insert and the
housing inner circumference of the second housing part, which
annular gap tapers on the outflow side toward an annular opening
that opens into the housing interior.
[0018] In a preferred refinement according to the invention,
provision is made that a sleeve-shaped guide wall is provided in
the jet regulator housing, and that at least one aeration duct is
provided between the housing inner circumference of the jet
regulator housing and the guide wall, which aeration duct leads to
the housing interior from at least one aeration opening disposed on
the housing outflow side. In this refining design embodiment, the
jet regulator according to the invention has an outer surface,
formed by the housing outer circumference, and an inner surface,
formed by the guide wall. Since the at least one aeration duct and
the at least one aeration opening can thus be disposed on the inner
surface of the jet regulator configured as a jet aerator, rapid
furring in the annular zone between the housing outer circumference
of the jet regulator housing and the inner circumference in the
water outlet is effectively counteracted.
[0019] In a particularly advantageous, since particularly
leaktight, embodiment of the invention, provision is made that the
outflow-side housing end edge of the jet regulator housing is
configured as a lip seal which bears on the inner circumference of
the water outlet or lies close to the inner circumference of the
water outlet. The outflow-side housing end edge, configured as a
lip seal, can bear tightly on the inner circumference of the water
outlet. However, it is also possible for this housing end edge to
only lie close to the inner circumference of the water outlet in
such a way that the leakage water collected in the drainage annular
space is retained there by virtue of the capillary forces, or an
annular gap remaining between the lip seal, on the one hand, and
the inner circumference of the water outlet, on the other hand, is
tightly closed on account of furring with limescale which is
functionally inconsequential and thus potentially desirable in this
region.
[0020] In order for the drainage annular space to be continuously
emptied during the operation of the jet regulator according to the
invention, it is advantageous if at least one drainage opening is
provided in the sub-region of the housing wall of the jet regulator
housing disposed between the outflow-side housing end edge and the
outer thread, which drainage opening leads from the drainage
annular space to the aeration duct or to at least one of the
aeration ducts. The ambient air that is sucked through the aeration
duct into the housing interior of the jet aerator can thus entrain
leakage water from the drainage openings, which leakage water in
the housing interior mixes with the stream of water flowing through
the jet regulator housing.
[0021] The functionally correct operation of the jet regulator
according to the invention is also safeguarded against unauthorized
manipulation if a mesh or a net structure comprised of webs that
intersect one another at intersection nodes is formed integrally on
the guide wall on the outflow side. This outflow-side mesh or net
structure, which can also serve as a flow straightener that
combines the water that is in particular mixed with ambient air so
as to form a homogenous outflowing water jet, and the structures
lying behind said mesh or net structure in the housing interior,
can thus not be forced upward counter to the flow direction of the
water.
[0022] In order to be able to screw the jet regulator according to
the invention in a simple manner into the water outlet of a
sanitary outlet fitting, it is advantageous if the guide wall is
connected in a rotationally fixed and in particular integral manner
to the jet regulator housing and in particular to the first housing
part on the outflow side, and if at least one tool engagement face
for a driving tool is provided on the guide wall and/or on the mesh
or net structure.
[0023] In an embodiment according to the invention that is
particularly simple to produce and convenient to handle, provision
is made that at least one slit-shaped recess for the insertion of a
coin used as the driving tool, or of another driving tool, is
provided in the mesh or net structure, which recess is delimited by
opposite slit longitudinal walls that form tool engagement faces
for the driving tool.
[0024] In an embodiment according to the invention which is of
simple construction and provides good sealing, and in which the
outer thread forms a thread profile that deviates at least in
regions from a thread groove extending continuously in a helical
manner about a cylindrical wall, provision is made that the outer
envelope circle of the outer thread on the jet regulator housing,
intended to be screwed into the inner thread formed in the
cylindrical water outlet, widens preferably conically toward the
outflow side. In this embodiment, the outer thread, with its
conically widened thread portion, digs its way deep into the
encircling thread groove of the inner thread provided in the water
outlet, in such a way that this annular zone between the outer
thread on the housing outer circumference, on the one hand, and the
inner thread in the water outlet, on the other hand, is effectively
sealed off with respect to seeping of leakage water.
[0025] Any seeping of leakage water, if any, is to be expected via
the screw connection between the inner thread and the outer thread.
In order to secure the thread turns of this screw connection
against seeping of leakage water, it is expedient if at least one
molding which serves as a liquids bulkhead and which projects into
at least one thread groove of the outer thread is provided on the
housing outer circumference of the jet regulator housing.
[0026] In order that the molding serving as a liquids bulkhead is
able to dig deep into the thread groove of the inner thread
provided on the water outlet, it is expedient if the at least one
molding reaches as far as the envelope circle enveloping the outer
thread or at least in regions projects beyond this envelope
circle.
[0027] Particularly effective sealing is facilitated if the at
least one molding is configured as a separation wall extending
across at least two neighboring thread grooves of the outer
thread.
[0028] In an embodiment according to the invention which is
convenient to handle, easy to produce and provides effective
sealing, and in which the separation wall represents a deviation
from a thread groove that extends continuously in a helical manner
about a cylindrical wall, provision is made that the at least one
separation wall runs at least axially parallel to the housing
longitudinal axis of the jet regulator housing.
[0029] Additionally or alternatively, however, the deviation
provided according to the invention in the outer thread can also be
designed as at least one cam-shaped molding, wherein the cam-shaped
molding in the thread groove extends approximately in the groove
longitudinal direction.
[0030] However, it is also possible that the thread profile of the
outer thread, projecting beyond the thread groove, widens at least
in regions and preferably in an outflow-side thread portion, such
that the outer thread, with this widening thread portion on the
outflow side, can cut in a sealing manner deep into the inner
thread.
[0031] In order to provide a cross-sectional widening on the
housing outer circumference of the jet regulator housing, provision
is made, in an illustrative embodiment according to the invention,
that the at least one cross-sectional widening projects like a
flange on the housing outer circumference of the jet regulator
housing.
[0032] The at least one flange-like cross-sectional widening can
extend, in the housing circumferential direction of the jet
regulator housing, across at least one drainage opening.
[0033] To ensure that only a small amount of leakage water, if any,
can seep into the drainage annular space, it is expedient if the at
least one flange-like cross-sectional widening on the housing outer
circumference of the jet regulator housing is provided between the
outer thread and the at least one drainage opening.
[0034] In a particularly leaktight embodiment according to the
invention, provision is made that the flange-like cross-sectional
widening is configured as an annular flange that encircles the jet
regulator housing.
[0035] In a preferred embodiment according to the invention,
provision is made that the at least one flange-like cross-sectional
widening is configured as a screw-in abutment which limits the
screwing of the outer thread into the inner thread in the water
outlet of the outlet fitting.
[0036] Since the annular zone located between the housing outer
circumference of the jet regulator housing and the inner
circumference of the water outlet is positively sealed in the case
of the jet regulator according to the invention, provision is made,
in a preferred embodiment according to the invention, that the jet
regulator is designed free of a sealing ring and makes do without a
sealing ring of elastic material produced separately from the jet
regulator housing.
[0037] In the illustrative embodiment already described above, the
jet splitter is designed as a diffuser. In certain uses, a
differently configured illustrative embodiment is proposed in which
the jet splitter is designed as a perforated plate which has
splitter openings. To ensure that a corresponding negative pressure
arises on the outflow side of the jet splitter designed as a
perforated plate, it is advantageous if the splitter openings
taper, at least in regions, in the throughflow direction.
[0038] To ensure that the individual jets coming from the jet
splitter and optionally mixed with ambient air are then shaped
again into one homogenous jet that emerges from the jet splitter
without sputtering, it is advantageous if at least one insert part
is arranged at a distance downstream from the jet splitter in the
flow direction, which insert part has a mesh or net structure
composed of webs that intersect one another at intersection
nodes.
[0039] In advantageous developments according to the invention,
provision is made that the mesh or net structure(s) provided in the
at least one insert part and/or formed integrally on the guide wall
has/have throughflow openings which have a honeycomb-shaped and/or
hexagonal clear opening cross section.
[0040] In a differently configured illustrative embodiment,
provision is made that the mesh or net structure(s) provided in the
at least one insert part and/or formed integrally on the guide wall
is/are formed from at least two concentrically encircling webs
which are connected to a group of radial webs.
[0041] If, in at least one of the insert parts and/or on the guide
wall in the jet regulator housing, a mesh or net structure is
intended to be formed which has diamond-shaped or rectangular
throughflow openings, it is advantageous if the mesh or net
structure(s) provided in the at least one insert part and/or formed
integrally on the guide wall has/have a group of axially parallel
first webs which intersect a group of axially parallel second webs
which are disposed at an angle and preferably at a right angle in
relation to said group of axially parallel first webs.
[0042] In a further proposal according to the invention, provision
is made that the mesh or net structure(s) provided in the insert
part and/or formed integrally on the guide wall is/are formed by
mutually intersecting webs which are disposed at an angle to each
other in such a way that said mesh or net structure(s) is/are
formed ornamentally from throughflow openings that are
non-uniformly shaped in terms of their clear open cross
section.
BRIEF DESCRIPTION OF THE DRAWINGS
[0043] Refinements according to the invention will become clear
from the claims in conjunction with the drawing and the
description. The invention is described in more detail below on the
basis of preferred illustrative embodiments.
[0044] In the drawings:
[0045] FIG. 1 shows a perspective view of the jet regulator housing
of a jet regulator which, on its jet regulator housing, has an
outer thread with which the jet regulator can be screwed into an
inner thread on the water outlet of a sanitary outlet fitting,
wherein the housing end edge region disposed on the outflow side of
the outer thread is angled outward in such a way that a drainage
annular space forms between this housing end edge region and the
inner circumference of the water outlet (not shown in any detail
here),
[0046] FIG. 2 shows the jet regulator housing from FIG. 1 screwed
into an inner thread in the water outlet, in a longitudinal section
detail in the region of the outer thread,
[0047] FIG. 3 shows the jet regulator housing from FIGS. 1 and 2 in
a plan view of its outflow-side housing end face,
[0048] FIG. 4 shows the jet regulator housing of a further jet
regulator in a perspective view, wherein an outer thread is
provided on the housing outer circumference of the jet regulator
housing, which outer thread has, in a thread groove, at least one
molding that projects in the shape of a cam,
[0049] FIG. 5 shows the outer thread of the jet regulator housing
shown in FIG. 4, in a perspective view of a detail in the region of
the cam-shaped molding,
[0050] FIG. 6 shows the jet regulator equipped with the jet
regulator housing from FIGS. 4 and 5, which jet regulator is
screwed with its outer thread into an inner thread in the water
outlet of a sanitary outlet fitting, wherein the jet regulator is
shown in a longitudinal section through the section plane VI.-VI.
in FIG. 6A, and wherein
[0051] FIG. 6A shows the jet regulator in a plan view of its inflow
side,
[0052] FIG. 7 shows the screw connection provided between the jet
regulator from FIG. 6 and the water outlet, in a longitudinal
section detail in the region of the cam-shaped molding,
[0053] FIG. 8 shows the jet regulator from FIG. 6 with the jet
regulator housing already shown in FIGS. 4 to 7,
[0054] FIG. 9 shows the jet regulator from FIGS. 6 and 8 in a plan
view of the outflow-side housing end face,
[0055] FIG. 10 shows the outer thread on the jet regulator housing
of the jet regulator shown in FIGS. 6, 8 and 9, said outer thread
being sectioned longitudinally in four angular positions, wherein
the angular positions used for the longitudinal section are shown
and sequentially numbered in FIGS. 8 and 9,
[0056] FIG. 11 shows the jet regulator housing of a further jet
regulator, wherein at least one separation wall can be seen that
projects beyond the outer thread provided on the housing outer
circumference and that is configured as a liquids bulkhead,
[0057] FIG. 12 shows the outer thread provided on the housing outer
circumference of the jet regulator housing shown in FIG. 11, in a
perspective view of a detail in the region of the separation wall
serving as a liquids bulkhead,
[0058] FIG. 13 shows the jet regulator designed using the jet
regulator housing shown in FIG. 11, which jet regulator is also
here screwed into the water outlet of a sanitary outlet fitting, in
a longitudinal section through section plane XIII.-XIII. according
to FIG. 13A, wherein
[0059] FIG. 13A shows the jet regulator in a plan view of the
inflow side,
[0060] FIG. 14 shows the outer thread of the jet regulator shown in
FIG. 13 in a longitudinal section of a detail in the region of the
separation wall shown in FIGS. 11 and 12, said outer thread
interacting with the inner thread in the water outlet,
[0061] FIG. 15 shows a further jet regulator, of which the outer
thread provided on the housing outer circumference in an
outflow-side sub-region has in some regions a thread profile that
deviates from a thread groove extending continuously in a helical
manner about a cylindrical wall, wherein this deviation in the
thread profile can be cut sealingly into the inner thread in the
water outlet,
[0062] FIG. 16 shows the outer thread of the jet regulator shown in
FIG. 15, in a perspective view of a detail in the region of the
deviation in the outer thread,
[0063] FIG. 17 shows the jet regulator from FIGS. 15 and 16 in a
perspective side view,
[0064] FIG. 18 shows the jet regulator already shown in FIGS. 15 to
17, in a perspective view of a detail in the region of the thread
profile of the outer thread that is designed deviating on the
outflow side,
[0065] FIG. 19 shows the jet regulator from FIGS. 15 to 18 in a
perspective view from below,
[0066] FIG. 20 shows the jet regulator from FIGS. 15 to 19 in a
plan view of the outflow-side housing end face of the jet regulator
housing,
[0067] FIG. 21 shows the outer thread longitudinally sectioned in
four different angular positions, wherein the angular positions
shown are sequentially numbered and illustrated in more detail in
FIGS. 19 and 20,
[0068] FIG. 22 shows the jet regulator shown in FIGS. 15 to 21, in
a longitudinal section in the water outlet of a sanitary outlet
fitting,
[0069] FIG. 23A to FIG. 23C show the jet regulator from FIG. 15 to
FIG. 22 in views of details in the region of the screw connection
thereof, wherein FIG. 23A shows the jet regulator, not yet
completely screwed into the water outlet, in the region of its
outer thread interacting with the inner thread in the water outlet,
and FIG. 23B shows the screw connection interacting between the
outer thread and the inner thread in the water outlet, wherein the
thread deviation provided on the outflow-side end region of the
outer thread begins to cut into the inner thread, and wherein the
screw connection between the outer thread on the jet regulator
housing and the inner thread in the water outlet is illustrated in
the screwed-in end position in FIG. 23C,
[0070] FIG. 24 shows the jet regulator housing of the jet regulator
shown in FIGS. 15 to 22, in a longitudinal section of a detail in
the region of the drainage annular space,
[0071] FIG. 25 shows the jet regulator from FIGS. 15 to 22 screwed
into the water outlet of a sanitary outlet fitting, in a
longitudinal section through section plane XXV.-XXV. according to
FIG. 26,
[0072] FIG. 26 shows the jet regulator from FIGS. 15 to 22 and 25
in a plan view of the inflow side of this jet regulator and of the
dome screen provided there at the inflow side,
[0073] FIG. 27 shows a side view of a further jet regulator in
which the drainage annular space is connected by way of drainage
openings to an aeration duct that runs in an annular manner in the
housing interior, wherein flange-like cross-sectional widenings,
which limit seeping of leakage water into the drainage annular
space, project above the drainage openings,
[0074] FIG. 28 shows a longitudinal section through the jet
regulator produced using the jet regulator housing shown in FIG.
27,
[0075] FIG. 29 shows the jet regulator from FIG. 28 in a
longitudinal section through a detail of the screw connection
between the jet regulator housing, on the one hand, and the inner
thread provided in the water outlet, on the other hand,
[0076] FIG. 30 shows a jet regulator in a side view, wherein the
jet regulator shown here has a flange-like cross-sectional widening
which is disposed above drainage openings and which extends around
the outer circumference of the jet regulator housing,
[0077] FIG. 31 shows the jet regulator from FIG. 30 in a
longitudinal section, and
[0078] FIG. 32 shows the screw connection provided between the
outer thread on the jet regulator housing, on the one hand, and the
inner thread in the water outlet, on the other hand, in a
longitudinal section of a detail in the region of the
cross-sectional widening disposed like a flange around the jet
regulator housing.
DETAILED DESCRIPTION
[0079] FIGS. 1 to 32 show various embodiments 101, 104, 111, 115,
127 and 130 of a jet regulator. While only the jet regulator
housing of the jet regulator 101 is illustrated, the jet regulators
104, 111, 115, 127 and 130 in FIGS. 6, 13, 22, 25, 28 and 31 are
shown in longitudinal sections which in an exemplary manner show
all essential component parts of such a jet regulator.
[0080] The jet regulators 101, 104, 111, 115, 127 and 130 shown
here have a jet regulator housing 1 which, on its housing outer
circumference, has an outer thread 2. With the outer thread 2
provided on the housing outer circumference, the jet regulators
101, 104, 111, 115, 127 and 130 can in each case be screwed into an
inner thread 3 in the water outlet 4 of a sanitary outlet fitting
so as to shape the water emerging there into a homogenous,
non-sputtering and optionally also sparkling soft water jet. To
ensure that the annular zone 5 remaining between the housing outer
circumference of the jet regulator housing 1 and the inner
circumference of the water outlet 4 is sealed off with respect to
uncontrolled emergence of leakage water, the jet regulators 101,
104, 111 and 115 have as the outer thread 2 a thread profile which,
at least in regions, deviates from a thread groove that extends
continuously in a helical manner about a cylindrical wall. The
outer thread 2, in this thread profile that at least in regions is
designed in a deviating manner, interacts in a self-tapping or
rather self-adapting manner with the inner thread 3 provided in the
water outlet 4, in such a way that this screw connection provides
particularly good sealing in this region. Additionally, or as here
alternatively, at least one cross-sectional widening 6, 7 is
provided respectively in the jet regulators 127 and 130, which
cross-sectional widening 6, 7 is materially identical with the
housing portion of the jet regulator housing that supports the
outer thread 2 and is formed integrally thereon, and said
cross-sectional widening 6, 7 can bear sealingly on the end face
and/or inner circumferential face of the water outlet 4. By virtue
of these particular design features of the jet regulators shown
here, an uncontrolled emergence of leakage water through the
annular zone 5 provided between the housing outer circumference of
the jet regulator housing 1 and the inner circumference in the
water outlet 4 is effectively avoided under almost all operating
conditions, even when the jet regulators, as here, are designed
without additional elastic sealing rings for axially or radially
sealing the jet regulator housing 1. In the jet regulators 101,
104, 111, 115, 127 and 130, the abovementioned annular zone is
reliably leaktight even when the inner thread 3 in the water outlet
cannot be produced with high precision, and when the annular
shoulder in the water outlet 4 required for the axial sealing is to
be dispensed with in favor of lower manufacturing complexity in the
production of the outlet fitting.
[0081] As is evident from the longitudinal sections in FIGS. 6, 13,
22, 25, 28 and 31, a housing end edge region of the jet regulator
housing 1 disposed on the outflow side of the outer thread 2 is
angled in the direction of the inner circumference of the water
outlet 4 in such a way that a drainage annular space 8 is formed
between this housing end edge region and the inner circumference of
the water outlet 4.
[0082] The jet regulators 101, 104, 111, 115, 127 and 130 are here
in each case configured as a jet aerator which mixes the water
flowing therethrough with ambient air. The jet regulators 101, 104,
111, 115, 127 and 130 configured as jet aerators have at least one
aeration opening 9 which is disposed on the outflow side of the
outer thread 2 and is configured to be open toward the outflow-side
housing end face.
[0083] The jet regulator housing 1 of the jet regulators 101, 104,
111, 115, 127 and 130 illustrated here has at least two housing
parts 10, 11 which are releasably connectable to each other, of
which a first housing part 10 disposed on the outflow side supports
the outer thread 2. This outflow-side first housing part 10 is
releasably connected at the inflow side to a second housing part 11
of the jet regulator housing 1, which second housing part 11
supports a jet splitter, which splits the water flowing
therethrough into a multiplicity of individual jets.
[0084] The jet splitter of the jet regulator 111 shown in FIGS. 11
to 14 is configured here as a perforated plate 30 which has a
multiplicity of splitter openings 31 and which is formed integrally
in the second housing part 11. The splitter openings 31 situated in
the perforated plate 30, which is oriented transversely to the flow
direction, form cross-sectional constrictions which preferably
taper in the flow direction and in which the inflowing water
experiences an increase in velocity. Due to this increase in
velocity, a negative pressure by which ambient air can be sucked
into the housing interior of the jet regulator housing 1 is created
on the outflow side of the perforated plate 30. In order for this
ambient air to be intensively mixed with the water flowing through
the housing interior, at least one insert part 32, 33 is provided
on the outflow side of the perforated plate 30, at a distance from
the latter, said insert parts having in each case a mesh or net
structure composed of webs that intersect one another at
intersection nodes. In the mesh or net structure of these insert
parts 32, 33, the inflowing water is additionally divided in such a
way that it can readily mix with the suctioned ambient air before
said water, at the outlet end face of the jet regulator 111, is
combined in a flow straightener so as to form a homogenous,
non-sputtering and sparkling soft outlet jet.
[0085] By contrast, the jet splitter of the jet regulators 101,
104, 115, 127 and 130 is configured as a diffuser having a
cup-shaped jet splitter insert 12 which, on the cup circumference
of its cup shape, has a plurality of splitter openings 13, and
which has a cup base 14 that is configured as an impact surface
that deflects the inflowing water toward the splitter openings
13.
[0086] The second housing part 11 engages around the jet splitter
insert 12 of the jet splitter. The second housing part 11, in terms
of its clear housing cross section, conically tapers in such a way
that an annular gap 15 is formed between the jet splitter insert 12
and the housing inner circumference of the second housing part 11,
which annular gap 15 tapers on the outlet side toward an annular
opening 16 that opens into the housing interior.
[0087] A sleeve-shaped guide wall 17 is provided in the jet
regulator housing 1, at least one aeration duct 18 being provided
between said guide wall 17 and the housing inner circumference of
the jet regulator housing 1. This aeration duct 18 leads to the
housing interior from the at least one aeration opening 9 disposed
on the housing outflow face. Since the water divided into
individual jets in the jet splitter experiences an increase in
velocity in the annular gap 15, a negative pressure arises
according to Bernoulli's principle on the outflow side of the
annular gap 15 in the region of the annular opening 16, which
negative pressure sucks ambient air from the outside through the
aeration duct 18 into the sub-region of the housing interior that
serves as a mixing zone 20. There, the water flowing through is
mixed with the suctioned ambient air.
[0088] As can be readily seen from the longitudinal sections
according to FIGS. 6, 13, 22, 25, 28 and 31, the housing sub-region
or housing end edge region of the jet regulator housing 1 disposed
on the outflow side of the outer thread 2 is angled in the
direction of the inner circumference of the water outlet 4 in such
a way that the drainage annular space 8 is formed between this
housing end edge region and the inner circumference of the water
outlet 4. To ensure that the leakage water seeping through the
annular zone 5 between the housing outer circumference of the jet
regulator housing 1 and the inner circumference of the water outlet
4 can be readily retained in the drainage annular space 8, the
outflow-side housing end edge of the jet regulator housing 1 is
configured as a lip seal 21 which could bear on the inner
circumference of the water outlet 4, but which here only lies close
to the inner circumference of the water outlet 4. Due to the
capillary forces in this region, and on account of rapid furring in
the annular gap between the housing end edge configured as the lip
seal 21 and the inner circumference in the water outlet 4, said
annular gap is additionally sealed off.
[0089] As can be seen in the longitudinal sections according to
FIGS. 6, 13, 22, 25, 28 and 31, at least one drainage opening 22,
which leads from the drainage annular space 8 to the aeration duct
18, is provided in the sub-region of the housing wall of the jet
regulator housing 1 that is disposed between the outflow-side
housing end edge and the outer thread 2. The air sucked through the
aeration duct 18 can thus entrain the leakage water emerging from
the drainage annular space 8 via the drainage openings 22 and can
guide said leakage water into the housing interior, where said
leakage water mixes with the water flowing therethrough.
[0090] A mesh or net structure 23 comprised of webs that intersect
one another at intersection nodes is integrally formed on the guide
wall 17 at the outflow side. The throughflow holes 24 of this mesh
or net structure 23, which are formed between neighboring webs and
which here have a honeycomb-shaped hexagonal clear hole cross
section, preferably have a longitudinal extent that is larger in
comparison to the hole cross section, but at least have a
longitudinal extent that suffices for bringing the water mixed in
the housing interior together into a homogenous water jet. The
guide wall 17 is connected in a rotationally fixed and preferably
integral manner to the jet regulator housing 1 and in particular to
the outflow-side first housing part 10. At least one tool
engagement face for a driving tool is provided here on the guide
wall 17. For this purpose, at least one slit-shaped recess 29 for
the insertion of a coin used as the driving tool, or of another
driving tool, is provided in the mesh or net structure 23. This
recess 29 is delimited by opposite slit longitudinal walls. These
slit longitudinal walls of the recess 29 form tool engagement faces
for the driving tool.
[0091] In order to configure the outer thread 2 with a thread
profile that deviates from a thread groove extending continuously
in a helical manner about a cylindrical wall, the outer envelope
circle of the outer thread on the jet regulator housing that is
intended for screwing into the inner thread 3 molded in the
cylindrical water outlet 4 in the case of the jet regulator shown
in FIGS. 1 to 3 widens conically toward the outflow side. In FIG.
2, the outer thread 2 configured conically toward the outflow side
is shown in a position in which the jet regulator 101 is screwed
into the inner thread. By virtue of the conicity of the outer
thread 2, the uppermost thread turn on the inflow side still sits
with some clearance in the inner thread 3, while the next-but-one
thread turn in relation to the uppermost thread turn, on account of
the conicity of the outer thread that begins there, protrudes
deeper into the thread groove of the inner thread 3. The last
thread turn at the outflow side of the outer thread 2 almost
completely closes the assigned thread groove of the inner thread 3,
such that leakage water can no longer seep through by way of this
screw connection.
[0092] A further deviation of the thread profile forming the outer
thread 2 is shown in the case of the jet regulator 104 according to
FIGS. 4 to 10. In the case of this jet regulator, a cam-shaped
molding 28 is configured on the outer thread 2 provided on the
housing outer circumference and, in one of the thread grooves of
the outer thread, extends approximately in the groove longitudinal
direction. This cam-shaped molding 28 projects beyond the envelope
circle enveloping the outer thread 2. When the outer thread 2 is
screwed in the inner thread 3, the cam-shaped molding 28 seals in
the groove base of the neighboring inner thread 3, on the flanks of
this inner thread 3, and at the tip of the thread profile, once the
cam-shaped molding 28 has cut deep into the inner thread 3.
[0093] A further deviation in the thread profile forming the outer
thread 2 is implemented in the jet regulator 111 illustrated in
FIGS. 11 to 14. In the jet regulator 111 too, at least one molding
that serves as a liquids bulkhead and projects into at least one
thread groove of the outer thread 2 is provided on the housing
outer circumference of the jet regulator housing 1. However, this
at least one molding is here configured as a separation wall 26
which extends across at least two thread grooves of the outer
thread 2 and which runs approximately axially parallel to the
housing longitudinal axis of the jet regulator housing 1. Since
this molding configured as separation wall 26 projects far beyond
the envelope circle enveloping the outer thread 2, this molding at
the same time also represents a cross-sectional widening which
projects beyond the adjacent regions of the jet regulator housing 1
and which is materially identical with the housing portion of the
jet regulator housing 1 that supports the outer thread 2, and which
is formed integrally thereon, and which bears sealingly on the
inner circumferential face of the water outlet 4 and prevents
seeping of leakage water via the screw connection.
[0094] Also in the case of the jet regulator 115 shown in FIGS. 15
to 26, the outer thread 2 is configured as a thread profile which
at least in regions deviates from a thread groove extending
continuously in a helical manner about a cylindrical wall. For this
purpose, the thread profile of the outer thread, projecting beyond
the thread groove, preferably widens in an outflow-side thread
portion at least in regions and in this way forms a sealing wedge
27, which is illustrated in more detail in FIGS. 15 to 18. FIGS.
23A to 23C show how the molding of the thread profile forming the
outer thread 2, configured as sealing wedge 27, cuts increasingly
into the inner thread 3 of the outlet fitting as the outer thread 2
is screwed in. While the outer thread 2 in FIG. 23A is not yet
completely screwed into the inner thread 3, and the molding
configured as sealing wedge 27 has not yet been cut, FIG. 23B shows
how this molding starts to increasingly cut into the inner thread 3
as the outer thread 2 is driven further into the latter. The jet
regulator in FIG. 23C is completely assembled, and the molding
configured as sealing wedge 27 is fully engaged with the inner
thread 3. The overlapping hatched area in FIG. 23C indicates that
the material of the molding provided in the outer thread 2 and/or
of the inner thread 3 is displaced here.
[0095] On the basis of the jet regulators 127 and 130, it is shown
that the jet regulator housing 1 can also have, on its housing
outer circumference, at least one cross-sectional widening 6; 7
which is materially identical to the housing portion of the jet
regulator housing 1 that supports the outer thread 2 and which is
integrally formed thereon, and which can bear sealingly on the end
face and/or inner circumferential face of the water outlet 4. These
cross-sectional widenings 6; 7 in the case of the jet regulators
127 and 130 are configured like flanges and, in the housing
circumferential direction of the jet regulator housing 1, extend
across at least one of the drainage openings 22. The flange-like
cross-sectional widenings 6; 7 on the housing outer circumference
of the jet regulator housing 1 of the jet regulators 127, 130 are
provided between the outer thread 2 and the at least one drainage
opening 22. While the flange-like cross-sectional widenings 6 in
the case of the jet regulator 127 shown in FIGS. 27 to 29 are in
each case disposed on the inflow side directly above one of the
drainage openings 22, the jet regulator 130 shown in FIGS. 30 to 32
by contrast has a flange-like cross-sectional widening 7 which is
configured as an annular flange that encircles the jet regulator
housing 1. The flange-like cross-sectional widenings 6; 7 on the
jet regulators 127, 130 are here also configured as a screw-in
abutment which limits the screwing of the outer thread 2 into the
inner thread 3 in the water outlet 4 of the outlet fitting. The
cross-sectional widenings can bear sealingly on the outlet end face
or, as here, on the inner circumference of the water outlet.
[0096] The jet regulators shown here are distinguished by a high
degree of sealing in the region of the annular zone 5 situated
between the housing outer circumference of the jet regulator
housing 1 and the inner circumference in the water outlet 4 of the
outlet fitting, without separate and in particular materially
dissimilar sealing rings seals being required for the sealing. The
jet regulators 101, 104, 111, 115, 127 and 130 illustrated here are
therefore configured free of a sealing ring and make do without a
sealing ring of elastic material produced separately from the jet
regulator housing 1.
LIST OF REFERENCE SIGNS
[0097] 1 Jet regulator housing [0098] 2 Outer thread [0099] 3 Inner
thread [0100] 4 Water outlet [0101] 5 Annular zone [0102] 6
Flange-like cross-sectional widening (on the jet regulator 127
according to FIGS. 27 to 29) [0103] 7 Encircling flange-like
cross-sectional widening (on the jet regulator 130 according to
FIGS. 30 to 32) [0104] 8 Drainage annular space [0105] 9 Aeration
opening [0106] 10 First outflow-side housing part [0107] 11 Second
housing part [0108] 12 Jet splitter insert [0109] 13 Splitter
openings [0110] 14 Cup base [0111] 15 Annular gap (in the jet
splitter) [0112] 16 Annular opening (of the annular gap 15) [0113]
17 Guide wall [0114] 18 Aeration duct [0115] 19 Duct opening [0116]
20 Mixing zone [0117] 21 Lip seal [0118] 22 Drainage opening [0119]
23 Mesh or net structure [0120] 24 Throughflow openings [0121] 26
Separation wall [0122] 27 Sealing wedge [0123] 28 Cam-shaped
molding [0124] 29 Recess [0125] 30 Perforated plate [0126] 31
Splitter openings [0127] 32 Insert part [0128] 33 Insert part
[0129] 101 Jet regulator according to FIGS. 1 to 3 [0130] 104 Jet
regulator according to FIGS. 4 to 10 [0131] 111 Jet regulator
according to FIGS. 11 to 14 [0132] 115 Jet regulator according to
FIGS. 15 to 26 [0133] 127 Jet regulator according to FIGS. 27 to 30
[0134] 130 Jet regulator according to FIGS. 30 to 32
* * * * *