EP4127338A1

EP4127338A1 - Aerator

Info

Publication number: EP4127338A1
Application number: EP21731445.9A
Authority: EP
Inventors: Georg STÄDTLER; Werner Bammerlin
Original assignee: Neoperl GmbH
Current assignee: Neoperl GmbH
Priority date: 2020-06-19
Filing date: 2021-06-07
Publication date: 2023-02-08
Also published as: DE202020103566U1; CN113818525A; CN215829546U; WO2021254801A1; CN115803499A

Abstract

The invention relates to an aerator (101) having an aerator housing (1) which (1) is insertable into a water outlet of a sanitary outlet fitting and delimits a housing interior in which a jet splitter (2) having splitter openings (3) is provided, which (3) divide the water flowing through into a plurality of individual jets, and having a flow straightener (5) forming the outlet end face (A) of the aerator (101, 106, 110, 115, 118, 121), which (5) has a plurality of outlet openings (6), wherein a jet control device (4) is provided in the housing interior in the flow path between the jet splitter (2) and the flow straightener (5), which (4) has control pieces (7) oriented transverse to the flow direction of the water flowing through. The aerator (101) according to the invention is characterized in that the flow straightener (5) and the jet control device (4) are insertable into the aerator housing (1) from the outflow side (A) of the aerator (101, 106, 110, 115, 118, 121), the jet control device (4) has at least one inside wall (8) on which the control pieces (7) are formed on the flat side, and in that the flow straightener (5) and/or the jet control device (4) is/are fixable by means of interlocking or frictional connection in the aerator housing (1).

Description

Ray reign

The invention relates to a jet regulator with a jet regulator housing that can be inserted into a water outlet of a sanitary outlet fitting and delimits a housing interior in which a jet splitter is provided with splitter openings which divide the water flowing through into a plurality of individual jets, and with one the outlet face of the jet regulator forming flow straightener, which has a large number of outlet openings, with one in the housing interior in the flow path between the jet splitter and the flow straightener

Jet regulating device is provided which has regulating webs oriented transversely to the direction of flow of the flowing water. A jet regulator is previously known from DE 19647 798 A1, which can be mounted on the water outlet of a sanitary outlet fitting in order to shape the outflowing water into a homogeneous, non-splashing and possibly pearly-soft outlet jet. In order to be able to mount the previously known jet regulator on the water outlet of a sanitary outlet fitting, it is designed as an insert cartridge, the cartridge-shaped jet regulator housing of which is designed as a plastic injection-molded part and can be inserted into a sleeve-shaped outlet mouthpiece, which outlet mouthpiece has an external or internal thread that is attached to a mating thread on the water outlet the sanitary outlet fitting can be screwed. The screw connection provided between the outlet mouthpiece and the water outlet requires a round cross-section of the outlet mouthpiece and of the jet regulator housing that can be inserted therein. In the interior of the jet regulator housing, a jet splitter is provided with a plurality of splitter openings which are spaced apart from one another and in which Separation openings the water flowing into the water pipe is divided into a corresponding number of individual jets. At the outlet end face of the known jet regulator, a flow straightener is provided which has a large number of outlet openings in order to shape the individual jets, which are swirled inside the housing and possibly mixed with ambient air, into a homogeneously flowing water jet. In order to additionally swirl and decelerate the individual jets inside the housing and, if necessary, mix them with ambient air, a jet regulating device is provided in the flow path between the jet splitter and the flow straightener, which has regulating webs oriented transversely to the direction of flow of the water flowing through. In the previously known jet regulator, both the flow straightener forming the outlet end face of the jet regulator and the jet regulating device are formed by wire meshes from a metal mesh. While the sieve openings of the circular sieve forming the flow straightener form the outlet openings, the interwoven metal wires of the circular sieve forming the jet regulating device form their regulating webs. These sieve discs are inserted from the outlet face into the interior of the aerator housing, before the outlet edge of the aerator housing is then bent inward by thermal action on the plastic material used for the aerator housing in such a way that these sieve discs are held captive in the aerator housing.

A jet regulator is already known from EP 0931 199 B1 which has an inflow-side jet splitting device and an outflow-side flow straightener in its jet regulator housing, with one in the flow path between the jet splitter and the flow straightener Jet regulating device is provided. The jet regulating device of this known jet regulator also has pin-shaped or web-shaped impact bodies, the pins or webs serving as impact bodies either protruding from the inside of at least one circumferential segment of the jet regulator housing and being connected to it in one piece, or protruding at right angles over a flat side of a holding part that protrudes through Bending can be used in the sleeve-shaped jet regulator housing. However, this known jet regulator is associated with considerable effort in terms of design and manufacture.

The object is therefore to create a jet regulator of the type mentioned at the beginning, the components of which can be manufactured as simply as possible even with a comparatively complex structure of the jet regulator.

The inventive solution to this problem in the case of the jet regulator of the type mentioned at the outset consists in particular in the fact that the flow straightener and the jet regulating device can be inserted into the jet regulator housing from the downstream side of the jet regulator, that the jet regulating device has at least one inner wall on which the regulating webs are formed on the flat side, and that the flow straightener and / or the

The jet regulating device can be fixed in the jet regulator housing by means of a form fit or friction fit.

The jet regulator according to the invention has a jet regulator housing which can be inserted into a water outlet of a sanitary outlet fitting in order to shape the water exiting there into a homogeneous, non-splashing and possibly also pearly-soft water jet.

The jet regulator housing of the jet regulator according to the invention delimits a housing interior in which a jet splitter with splitter openings is provided. In these dissection openings the flowing water is divided into a multitude of individual jets. These individual jets are additionally slowed down and divided inside the jet regulator housing in a subsequent jet regulating device, before the water flowing through in this way is combined again to form a soft, homogeneous overall jet in a subsequent flow straightener. the

The flow straightener, which has a large number of outlet openings, forms the outlet face of the jet regulator. In the flow path between the jet splitter and this flow straightener, the jet regulating device is provided in the interior of the housing, which has regulating webs oriented transversely to the direction of flow of the water flowing through. The flow straightener and the jet regulating device can be inserted into the jet regulator housing from the downstream side of the jet regulator. In order to be able to hold the regulating webs in the flow path transversely to the flow direction of the water, the

Jet regulating device has at least one inner wall on which the regulating webs are formed on the flat side. The jet regulating webs with their at least one inner wall and the regulating webs formed thereon can, like the jet regulator housing and the other components of the jet regulator according to the invention, be manufactured in a simple manner as injection molded parts without the need for complex injection molding tools to manufacture these components. The flow straightener and / or the jet regulating device is fixed in the jet regulator housing by means of a form fit or friction fit.

A particularly advantageous and easily producible embodiment according to the invention provides that the flow straightener and / or the jet regulating device by means of a latching or snap connection in the

The aerator housing is / are fixable. The through this rest Form fit formed or snap connection between the flow straightener and / or the jet regulating device on the one hand and the jet regulator housing on the other hand ensures a secure and resilient connection of these components of the jet regulator according to the invention.

The jet regulator according to the invention can have a jet regulator housing that is round in cross section and also has a round jet outlet. However, an embodiment is preferred in which the jet regulator is designed as a rectangular or flat jet regulator and / or has a non-circular jet outlet which has a greater longitudinal extension compared to the transverse extension.

In order to be able to position the jet regulating device in the interior of the jet regulator housing in the correct position, it is advantageous if at least one guide groove open to the outlet end face of the jet regulator is provided on the inner circumference of the jet regulator housing, into which guide groove the at least one inner wall can be inserted with one of its narrow edges oriented in the direction of insertion.

The simple assembly of the jet regulator according to the invention is further enhanced if the jet regulator housing has a guide groove open to the outlet end face on opposite sides of the inner circumference of the housing, and if the at least one inner wall can be inserted into the guide grooves with its narrow edges oriented in the direction of insertion. In this embodiment, correctly positioned assembly of the inner wall with the regulating webs molded onto it is ensured in a simple manner.

The regulating webs can be molded onto one of the two flat sides of the at least one inner wall. A particularly simple design and manufacture according to the However, the invention provides that the regulating webs are formed flat on both sides of the at least one inner wall.

In order to be able to shape the water flowing through along the jet regulating device and its regulating webs in the desired manner, it is advantageous if the regulating webs are formed on at least one flat side of the at least one inner wall in planes oriented transversely to the flow direction and preferably spaced apart from one another.

The water flowing through can be shaped particularly well in the subsequent web planes of the jet regulating device if the regulating webs arranged in a downstream plane are arranged in an extension of the flow space provided between adjacent regulating webs of a web planes provided on the upstream side.

In order to quickly decelerate the individual jets coming from the jet splitter and also split them up, it is advantageous if the regulating webs of the first web plane in the flow direction each have an inflow-side impact surface and / or if these regulating webs are rounded on their outflow side.

In order to then reunite the water jets that have been slowed down in the jet regulating device and are additionally divided, it is advantageous if the regulating webs of the web plane provided in the flow direction downstream have a longer length oriented in the flow direction and / or if these regulating webs are larger than the web width compared to the web width their inflow and / or their outflow are rounded. In particular, if the jet regulator according to the invention is designed as a rectangular or flat jet regulator, it can be advantageous if the regulating webs of the web plane provided on the outflow side in the flow direction one in the direction of an adjacent transverse wall of the

Have jet regulator housing curved longitudinal extension. The flat jet formed in such a rectangular or flat jet regulator remains in its shape even over a longer distance of the outflowing water when the water flowing through the jet regulator housing is in the area of the

The jet regulating device is also guided well into the edge regions of the flat jet flowing along the transverse walls of the jet regulator housing. A particularly advantageous embodiment according to the invention provides, in which the outflowing water also emerges over a longer distance as a homogeneous flat jet and in which the water is well distributed over the entire jet cross-section, that this curvature of adjacent regulating webs is arranged closer to the adjacent transverse wall external regulating web is larger in comparison to the respective internal regulating web.

A preferred embodiment according to the invention, in which the regulating webs of the jet regulating device are arranged in at least three web planes, provides that the regulating webs of a web plane arranged between the first web plane and the web plane provided on the downstream side in the flow direction are rounded and preferably have a circular web cross-section. In this web level, the water flowing through is additionally slowed down and divided up without fear of excessive turbulence in the water flow. So that the flow straightener provided on the outlet face can equalize and combine the water flowing out there into a homogeneous overall jet without the flow straightener opposed to the incoming water an excessive flow resistance, it is advantageous if the flow straightener has a lattice structure made up of multitudes of intersecting straightening bars, which between the outlet openings are limited.

In this case, the water flowing through can be shaped particularly well in the flow straightener if the straightening webs of the lattice structure have a longitudinal extent that is greater than the web width and oriented in the flow direction.

The shaping of a homogeneous outlet jet is promoted if the rectifier webs are arranged "with gaps" in the extension of the through-flow space provided between the adjacent regulating webs of the downstream web plane.

A particularly simple embodiment, in which the jet splitter can either be inserted into the jet regulator housing from the inflow side of the jet regulator up to an annular shoulder provided on the inner circumference of the housing or can be integrally formed on the inner circumference of the jet regulator housing, provides that the jet splitter is designed as a perforated plate, which the Has decomposition openings oriented in the flow direction.

So that the regulating webs arranged in the first web level on the inflow side can already perform their function particularly well, it is advantageous if the jet splitter in the jet regulator housing is relative to the regulating webs of the Is arranged on the inflow side of the first web plane in such a way that these regulating webs are arranged in the flow direction in alignment with the splitting openings.

So that the individual jets emerging on the downstream side of the jet splitter can expand unhindered and mix with one another in a mixing zone, it is advantageous if at least two web-shaped spacers protrude from the jet splitter on the upstream narrow edge of the inner wall or on the downstream side of the jet splitter Keep distance. These web-shaped spacers ensure a sufficient distance between the downstream side of the jet splitter on the one hand and the inner wall on the other so that a mixing zone can form in the interior of the jet regulator housing in this area.

Preferred embodiments according to the invention provide that the flow straightener and the jet regulating device are connected to one another in one piece or form separate components of the jet regulator from one another.

If these components are to be manufactured as separate components and if these components are to be connected to one another when they are installed in the jet regulator housing, it can be advantageous if the flow straightener and jet regulating device, which are designed as separate components, can be connected to one another, and if so on one component at least one plug-in pin, preferably at least two spaced-apart plug-in pins, which can be inserted into an associated insertion opening on the other component.

A preferred embodiment, in which the construction and assembly is significantly facilitated, provides that the plug-in pin (s) protrudes on the narrow edge of the inner wall on the downstream side and can be inserted into an associated insertion opening on the flow straightener.

The inner wall of the jet regulating device can also be captive and, if necessary, permanently installed on the flow straightener if the plug (s) can be inserted into the associated plug-in opening until a cross-sectional expansion provided at the free end of the plug (s) protrudes over the flow straightener. Through this cross-sectional expansion, which protrudes like a harpoon over the downstream side of the jet regulator when the jet regulator is installed, the flow straightener is held securely and firmly on the inner wall of the jet regulating device.

It can be advantageous if the inner wall is divided into at least two wall sections with webs formed on the flat side. These at least two sections are then inserted one after the other into the guide grooves on the inner circumference of the jet regulator housing until the inner wall formed from these wall sections is formed.

A particularly easy to manufacture

Embodiment according to the invention provides that the inner wall is divided into wall sections, on each of which at least one level of regulating webs is formed. In this embodiment, the regulating webs arranged in the individual web planes can also be shaped well in different web cross-sections despite the comparatively small spacings. It can be advantageous if the at least one inner wall is arranged in the jet regulator housing in such a way that the distance between the inner wall and a first longitudinal wall of the jet regulator housing is greater than in comparison to the distance from the second longitudinal wall.

In order to distribute the water flowing through the jet regulator according to the invention well and evenly over the entire housing cross-section even with such an embodiment, it can be advantageous if the longitudinal axes of the

Splitting openings of the jet splitter are aligned approximately with the web center of the adjacent regulating web. If the at least one inner wall is differently spaced from the longitudinal walls of the jet regulator housing provided on both sides, an even distribution of the water flowing through is nevertheless ensured over the entire housing cross-section if the longitudinal axes of the splitter openings of the jet splitter are approximately aligned with the center of the web of the adjacent regulating web, and if necessary for this purpose, the separating openings arranged in rows spaced apart from one another are oriented in at least one row of these separating openings obliquely to the longitudinal extent of the jet regulator housing. It can be advantageous if the flow straightener and / or the jet regulating device is designed as a two-component or multi-component injection-molded part and / or is made from an elastomer plastic. A preferred embodiment according to the invention provides that at least a partial area of the rectifier bars is made from an elastomer plastic or has at least one surface made from an elastomer plastic. An advantageous development according to the invention provides that the flow straightener has a lattice structure made up of a group of spaced parallel first webs which intersect with at least one second web arranged at right angles to the first webs, and that the first and second webs are the outlet openings of the Limit the flow straightener.

So that the water guided through the jet regulator can be guided over almost the entire cross-section of the jet regulator housing, at least in the area of the flow straightener, without a retaining ring surrounding the flow straightener and molded onto it constricting this clear flow cross-section, it is advantageous if at least one of the first webs and preferably at least a plurality of the first webs of the flow straightener each have free web ends on both sides and that the first webs can preferably be releasably latched with their free web ends in a locking groove on the inner circumference of the jet regulator housing.

In order to be able to arrange and assemble the inner wall carrying the regulating webs in the correct function and position in the housing interior of the jet regulator housing without having to fear tilting of the inner wall under the pressure of the flowing water, it is advantageous if at least on the side of the flow straightener facing the housing interior a holding fork and at least two spaced apart holding forks protrude, in the fork opening of which the at least one inner wall of the jet regulating device can be inserted.

A tilt-proof hold is provided by the

Flow straightener separately manufactured inner wall and its regulating webs favored when the distance between the The forks of the at least one holding fork which limit the fork opening are adapted to the wall thickness of the inner wall assigned to the at least one holding fork and are dimensioned so that the inner wall is preferably held on the flow straightener at right angles to the lattice plane of the flow straightener defined by the lattice structure.

Developments according to the invention emerge from the claims in connection with the drawing and the following description of the figures.

The invention is described in more detail below with reference to preferred exemplary embodiments.

It shows:

1 shows a flat jet regulator in a plan view of its housing end face on the inflow side,

2 shows the jet regulator from FIG. 1 in a longitudinal section through section plane II-II according to FIG

Jet regulating device can be used, and the jet regulating device has an inner wall on which webs serving as impact bodies protrude on both sides,

Fig. 3 shows the flow straightener and the

Jet regulating device of the jet regulator shown in FIGS. 1 and 2 in a perspective view, the inner wall forming the jet regulating device with the two molded on both sides Web is integrally connected to the flow straightener forming the outlet face of the jet regulator,

4 shows the aerator from Figures 1 to 3 in an exploded perspective view of its components designed as plastic injection molded parts, these components being shown here in a perspective bottom view of the flat side of the aerator housing facing the user in the installed position of the aerator,

5 shows the components of the jet regulator shown in FIGS. 1 to 4 in an exploded perspective view from below onto the flat side of the jet regulator housing facing away from the user in the installed position of the jet regulator,

6 shows a jet regulator, also designed as a flat jet regulator, in a plan view of its housing end face on the inflow side,

7 shows the jet regulator from FIG. 6 in a longitudinal section through section plane VII / VII according to FIG. 6, whereby it can be seen that the components of the jet regulator inserted from the outlet face and serving as a flow straightener and as a jet regulating device are designed as separate components,

Fig. 8 as a flow straightener and as

Components of the jet regulator shown in FIGS. 6 and 7 serving the jet regulating device in an exploded view of individual parts, 9 shows the jet regulator from FIGS. 6 to 8 in an exploded perspective view from below of its components,

10 shows a further jet regulator, also designed here as a flat jet regulator, in a plan view of its front face on the inflow side,

11 shows the jet regulator from FIG. 10 in a longitudinal section through section plane XI-XI, the jet regulating device formed by an inner wall with regulating webs molded on both sides and the flow straightener, which forms the outlet end face and is manufactured here as a two-component injection-molded part, being designed as separate components of the jet regulator, and wherein the plate-shaped flow straightener can be positively latched or snapped onto the inner circumference of the jet regulator housing in such a way that the jet regulating device pushed into the jet regulator housing is also secured there,

Fig. 12 the flow straightener and the

Jet regulating device of the jet regulator shown in Figures 10 and 11 in an exploded perspective side view,

13 shows the flow straightener of the jet regulator shown in FIGS. 10 to 12 in a side view,

14 shows the flow straightener, produced here as a two-component injection-molded part, of the jet regulator shown in FIGS. 10 to 13 in a cross section through section plane XIV-XIV in FIG. 13, 15 shows a jet regulator designed as a flat jet regulator in a plan view of its front face on the inflow side,

FIG. 16 shows the jet regulator from FIG. 15 in a longitudinal section through section plane XVI-XVI according to FIG.

17 shows the flow straightener and the

Jet regulating device of the jet regulator shown in Figures 15 and 16 in a perspective view of individual parts before they are connected to one another,

18 shows a jet regulator in a plan view of its front face on the inflow side, the jet regulator shown here also being designed as a flat jet regulator,

19 shows the jet regulator from FIG. 18 in a longitudinal section through section plane XIX-XIX in FIG. 18, wherein the inner wall of a jet regulating device can be seen which is composed of three separately produced wall sections,

Fig. 20 shows the three wall sections of the

The inner wall, which forms the jet regulating device, of the jet regulator shown in FIGS. 18 and 19 with the webs formed on both sides, as well as that forming the outlet end face of the jet regulator Flow straightener in an exploded perspective one-time representation,

21 shows a jet regulator designed as a flat jet regulator in a longitudinal section,

22 shows the jet regulator from FIG. 21 in a longitudinal section rotated by 90 ° with respect to FIG. 21 in section plane XXII-XXII according to FIG. 21,

23 shows the jet regulator from FIGS. 21 and 22 in a detailed longitudinal section in the partial area circled in FIG. 22, the longitudinally sectioned jet splitter being shown in the area of two adjacent splitter openings,

24 shows a jet regulator likewise designed as a flat or rectangular jet regulator in a longitudinal section, and

25 shows the flow straightener forming the outlet end face of the jet regulator shown in FIG. 24 in an isolated perspective illustration.

In the figures 1 to 25 different versions 101, 106, 110, 115, 118, 121 and 124 of a jet regulator are shown. The jet regulators 101, 106, 110, 115, 118, 121, 124 have a jet regulator housing 1, which can be inserted into a water outlet of a sanitary outlet fitting, not shown here, in order to transform the water exiting there into a homogeneous, non-splashing and possibly also to form a pearly-soft jet of water. The

The jet regulator housing 1 delimits a housing interior in which a jet splitter 2 with splitter openings 3 is provided. With the versions 101, 106, 110, 115, 118, 121 and 124, the plate-shaped jet splitter 2 with its splitting openings 3 is formed in one piece on the inner circumference of the jet regulator housing 1. In the splitting openings 3, the water flowing through is divided into a large number of individual jets. These individual jets are additionally braked and divided inside the jet regulator housing 1 in a subsequent jet regulating device 4, before the water flowing through in this way is combined again in a subsequent flow straightener 5 to form a soft, homogeneous overall jet. The flow straightener 5, which has a large number of outlet openings 6, forms the outlet end face A of the jet regulator 101, 106, 110, 115, 118, 121 or 124. In the flow path between the jet splitter 2 and this flow straightener 5, the jet regulating device 4 is provided in the interior of the housing , which has regulating webs 7 oriented transversely to the direction of flow of the water flowing through. The flow straightener 5 and the jet regulating device 4 can be inserted into the jet regulator housing 1 from the outlet end face A of the jet regulator. In order to be able to hold the regulating webs 7 in the flow path transversely to the flow direction of the water, the jet regulating device 4 has at least one inner wall 8 on which the regulating webs 7 are integrally formed on the flat side. The jet regulating device 4 with its at least one inner wall 8 and the regulating webs 7 formed thereon can be, like the jet regulator housing 1 and the other components of the jet regulators 101, 106, 110, 115, 118, 121, 124 shown here in a simple manner as Manufacture injection molded parts and in particular as plastic injection molded parts without the need for complex injection molding tools to produce these components.

The flow straightener 5 and the jet regulating device 4 are fixed by means of a form fit or friction fit on the inner circumference of the jet regulator housing 1 in such a way that these components 4, 5 do not accidentally fall out of the jet regulator housing 1 even under the pressure of the inflowing water.

In Figures 2, 7, 11, 16, 19, 21 and 24 it can be seen that the jet regulators shown here have an attachment screen 9 on the inflow side of their jet regulator housing 1, which has to filter out any lime and dirt particles that may be carried in the incoming water these inside the housing can impair the function of the jet regulator. A flow rate regulator 10 can be arranged between the attachment screen 9 and the jet splitter 2, which regulates the flow rate of the water flowing through from the inflow side to the opposite outlet end face A of the jet regulator housing 1 to a specified maximum value independently of pressure.

115, 118, 121 and 124, the jet regulator is designed as a rectangular or flat jet regulator and has a non-circular jet outlet which has a greater longitudinal extension compared to the transverse extension. To the jet regulator 4 inside the

To be able to position the jet regulator housing 1 in the correct position, the jet regulators 101, 106, 110, 115, shown in FIGS.

118 and 121 at least one guide groove 11 open towards the outlet end face A of the jet regulator is provided, in which guide groove the at least one inner wall 8 of the

Beam regulating device 4 can be inserted with one of its narrow edges oriented in the direction of insertion. In order to additionally facilitate the simple assembly of the aerator shown in FIGS Guide groove 11, the at least one inner wall 8 being insertable into the guide grooves 11 with its narrow edges oriented in the direction of insertion. In this way, correctly positioned assembly of the inner wall 8 with the regulating webs 7 molded thereon is ensured in a simple manner.

In the case of the jet regulators 101, 106, 110, 115, 118, 121 and 124 according to FIGS. 1 to 25, the regulating webs 7 are formed flat on both sides of the at least one inner wall 8. In order to be able to shape the water flowing through along the jet regulating device 4 and its regulating webs 7 in the desired manner, the regulating webs 7 are formed on at least one flat side of the at least one inner wall 8 in planes oriented transversely to the flow direction and preferably spaced apart from one another. In order to be able to shape the water flowing through the jet regulator housing 1 particularly well in the subsequent web planes of the jet regulating device 4, the regulating webs 7 arranged in an outflow-side plane are in an extension of the flow space provided between adjacent regulating webs of a web plane provided on the upstream side arranged.

In order to quickly decelerate the individual jets coming from the jet splitter 2 and also to split them up, the regulating webs 7 of the first web plane in the flow direction each have an inflow-side impact surface 12 and are rounded on their outflow side.

In order to subsequently reunite the water jets that have been braked in the jet regulating device 4 and are additionally divided, the regulating webs 7 of the web plane provided on the outflow side in the flow direction have a larger longitudinal extent than the web width and are oriented in the flow direction The inflow as well as the outflow side are designed to be rounded.

With the jet regulator versions 101, 106,

110, 115, 118, 121 and 124, the regulating webs 7 of a central web plane arranged between the first web plane and the web plane provided on the downstream side in the flow direction have a rounded and preferably circular web cross section. In this middle web level, the water flowing through is additionally slowed down and divided up without fear of excessive turbulence in the water flow.

The flow straightener 5 has the jet regulators 101, 106 shown here, so that the flow straightener 5 provided at the outlet end face A and designed here in the form of a plate can equalize and combine the water flowing out there into a homogeneous overall jet without the flow straightener 5 opposing the incoming water with an excessive flow resistance , 110, 115, 118, 121 and 124 have a lattice structure made up of flocks of mutually crossing rectifier webs 13, which between them the outlet openings 6 of the

Limit the flow straightener 5. In order to shape the water flowing through in the flow straightener 5 into a homogeneously tapering jet band, the

Rectifier webs 13 of the lattice structure have a greater longitudinal extension than the web width, oriented in the flow direction.

The shaping of a homogeneous outlet jet is promoted in that the rectifier webs 13 are arranged with gaps in the extension of the flow space provided between the adjacent regulating webs 7 of the downstream web plane. So that the regulating webs 7 arranged in the first web level on the inflow side can perform their function particularly well, the jet splitter 2 in the jet regulator housing 1 is arranged relative to the regulating webs 7 of the first web level on the upstream side in such a way that these regulating webs 7 are in alignment in the flow direction of the decomposition openings 3 are arranged.

So that the individual jets exiting on the outflow side of the jet splitter 2 can expand unhindered and mix with one another in a mixing zone, at least two web-shaped spacers 14 are in front of the outflow side of the jet splitter or - as here - on the inflow side narrow edge of the inner wall 8 Keep jet splitter 2 at a distance. These web-shaped spacers 14 ensure a sufficient distance between the outflow side of the jet splitter 2 on the one hand and the inner wall 8 on the other hand, so that a mixing zone can form in the interior of the jet regulator housing 1 in this area.

While in the jet regulator version 101 shown in Figures 1 to 5, the flow straightener 5 and the jet regulating device 4 are integrally connected to one another, the flow straightener 5 and the jet regulating device 4 of the other jet regulator versions form 106, 110, 115, 118, 121 and 124 separate components or components of these aerators.

In the jet regulator embodiment 115 shown in FIGS

Beam regulating device 4 can be connected to one another. For this purpose, there are at least two of each other on the one component and here on the inner wall 8 of the jet regulating device 4 spaced plug-in pins 15 are provided which can each be inserted into an associated insertion opening 16 on the other component and here on the flow straightener 5. The plug-in pins 15 protrude from the narrow edge of the inner wall 8 on the downstream side and can each be inserted into an associated plug-in opening 16 on the flow straightener 5 until a cross-sectional expansion provided at the free pin end of the plug-in pin 15 protrudes over the flow straightener 5. Due to this cross-sectional expansion, which protrudes like a harpoon over the outflow side of the jet regulator 115 when the jet regulator is installed, the flow straightener 5 is held securely and firmly on the inner wall 8 of the jet regulating device 4.

In the jet regulator embodiment 118 shown in FIGS. 18 to 20, the inner wall 8 is divided into at least two and here three wall sections 17, on which wall sections 17 the regulating webs 7 are molded. The wall sections 17 are inserted one after the other into the guide grooves 11 on the inside circumference of the jet regulator housing 1 until the inner wall 8 formed from these wall sections 17 is formed. One level of regulating webs 7 is formed on each of the wall sections 17. In the jet regulator embodiment 118 shown in FIGS. 18 to 20, the regulating webs 7 arranged in the individual web planes can also be well formed in different web cross-sections despite the comparatively small spacings.

In the jet regulator version 101 shown in FIGS. 1 to 5, the plate-shaped flow straightener 5 with the inner wall 8 of the jet regulating device 4 molded onto it at right angles is inserted from the outflow side A of the jet regulator 101 into the interior of the jet regulator housing 1 until an on the outer circumference of the flow straightener 5 provided locking projection in a complementary locking groove snaps into the inner circumference of the jet regulator housing. This positive connection of the flow straightener 5 on the inner circumference of the housing of the jet regulator housing 1 also fixes the jet regulating device 4 formed on the flow straightener 5 in the housing interior.

The jet regulating device 4 of the jet regulator version 115 shown in FIGS. 15 to 17 can also be fixed in the housing interior of the jet regulator housing 1 in a comparable manner. Is the

Jet regulating device 4 connected to the flow straightener 5, these components 4, 5 can be held securely and firmly in the jet regulating device housing 1 if, in addition or instead, one with the

Housing inner circumference of the jet regulator housing 1 cooperating latching or snap connection is provided.

In the jet regulator versions 106, 110, 118, 121 and 124, the jet regulating device 4 is first pushed into the jet regulator housing 1 from the downstream side, before the plate-shaped flow straightener 5 is then inserted into the jet regulator housing 1 and snapped or snapped into place on the inner circumference of the jet regulator housing 1 is that the jet regulating device 4 is held securely and firmly in the housing interior of the jet regulator housing 1.

In order to form the flat jet flowing out of the jet regulator housing 1 on both sides with a sufficient amount of water also in its narrow edge areas, in the jet regulator version 121 shown in FIGS neighboring Transverse wall 18 of the jet regulator housing 1 has a curved longitudinal extension, this curvature of adjacent regulating webs 7 being greater in the case of the outer regulating web 7 arranged closer to the transverse wall 18 compared to the respective inner regulating web 7.

From a comparison of Figures 4 and 5 it becomes clear that the jet regulator shown here and in particular here the jet regulator version 101 only has at least one slot-shaped ventilation opening 21 on only one of its longitudinal walls 19 and here only on its longitudinal wall 19 facing away from the user in the position of use opens into the mixing zone arranged below the jet splitter 2 in the direction of flow and can flow into the interior of the jet regulator housing 1 through the ambient air. The

For this purpose, the aerator housing 1 has an indentation 20 on its outer circumference of the housing on the longitudinal wall 19 facing away from the user in the position of use, which leads from the outlet side A of the aerator housing to the ventilation opening 21. If the inner wall 8 is now arranged approximately in the longitudinal center plane of the jet regulator housing 1, this leads to the inner wall 8 being at a greater distance from the longitudinal wall 19 facing the user in the position of use than in relation to the wall 19 facing away from the user in the position of use and having the ventilation opening 21 Longitudinal wall 19. In order for the water flowing through to flow through evenly distributed over the cross section of the jet regulator housing 1, the jet regulator version 121 shown in FIGS 7 are aligned. Although the regulating webs 7 reaching with their free web ends up to the adjacent longitudinal wall 19 have a different web length on the two sides of the inner wall 8, the water flowing through is uniform over the Cross-section of the jet regulator housing 1 distributed because the longitudinal axes of the splitter openings 3 of the jet splitter 2 are each aligned approximately with the web center of the adjacent regulating web 7.

In order to counteract excessive calcification of the regulating webs 7 and / or the rectifier webs 13, the flow straightener 5 and / or the

The jet regulating device 4 can be designed as a two-component or multi-component injection-molded part and, in particular, made from an elastomer plastic 22. In the exemplary embodiments shown in FIGS. 11 to 14 and 15 to 17, the flow straightener 5 is designed as a two-component injection-molded part, with a hard-elastic plastic component 23 shown in fine-dashed lines in the figures forming a frame stiffening the flow straightener, while the water-wetted grid structure and / or the outer circumference of the flow straightener 5 resting on the inner circumference of the housing is made at least superficially from an elastomeric plastic 22 which is cross-hatched and has a significantly lighter effect. An embodiment is preferred in which at least a partial area of the rectifier webs 13 is made from an elastomer plastic 22 or has at least one surface made from an elastomer plastic 22.

FIGS. 24 and 25 show a modified further embodiment 124 of a rectangular jet regulator in a longitudinal section (cf. FIG. 24) and in a perspective top view of its flow straightener 5 (cf. FIG. 25) forming the outlet end face of this jet regulator 124. In FIG. 25 it becomes clear that the flow straightener 5 of this jet regulator 124 has a lattice structure made up of a group of parallel first straightener webs 13 which are spaced apart from one another and which are aligned with at least one second rectifier web 13 'and here with two spaced apart second rectifier webs 13' at intersections. In this case, at least a plurality of the first rectifier webs 13 each have free web ends 24 on both sides, which web ends 24 are each shaped here as latching cams. Looking at FIGS. 24 and 25 together, it becomes clear that the flow straightener 5 of the jet regulator 124 can preferably be releasably latched with the free web ends 24 in a locking groove 25 arranged on the inner circumference of the jet regulator housing 1 and also of the jet regulator 124. Here, the first and the second rectifier webs 13, 13 ′ delimit the outlet openings 6 of the downstream flow straightener 5 between them and, if appropriate, also the inner circumferential wall of the housing of the jet regulator housing 1.

As can be seen from a comparison of FIGS. 24 and 25, on the side of the flow straightener 5 facing the housing interior of the jet regulator housing 1 there are at least one holding fork 26 and preferably at least two holding forks 26 spaced apart from one another, in the fork opening 27 of which the at least one inner wall 8 or at least one of the inner walls 8 of the jet regulating device 4 is kept insertable.

The distance between the forks 28, 29 delimiting the fork opening 27 of the at least one holding fork 26 is adapted to the wall thickness of the inner wall 8 associated with the at least one holding fork 26 and is dimensioned so that the inner wall 8 is preferably at right angles to the lattice plane defined by the lattice structure of the flow straightener is held in particular on this flow straightener 5 so that it does not tip over. While the lattice structure of the flow straightener of the jet regulators 101, 106, 110,

115, 118 and 121 bounded by a circumferential retaining ring is the retaining ring with which the flow straightener can be locked into a locking groove on the inside circumference of the jet regulator housing 1, such a retaining ring is dispensed with in the flow straightener 5 of the jet regulator 124 shown in FIGS

Housing cross-section of the jet regulator housing 1 for guiding the water flowing through is available without further constrictions.

/ List of reference symbols

List of reference symbols

1 aerator housing

2 jet splitters

3 cutting openings

4 jet regulating device

5 flow straighteners

6 outlet openings (of the flow straightener 5)

7 regulating bars

8 inner wall

9 Attachment sieve

10 flow regulator

11 guide groove

12 baffle

13, 13 'rectifier bars

14 spacers

15 pins

16 insertion opening

17 wall sections

18 bulkhead

19 longitudinal wall

20 molding

21 ventilation opening

23 elastomer plastic

24 web ends (of the rectifier webs 13 shown in Figures 24 and 25)

25 locking groove

26 holding fork

27 fork opening

28, 29 forks of the holding fork 26 101 jet regulator according to FIGS. 1 to 5

106 jet regulator according to FIGS. 6 to 9

110 jet regulator according to FIGS. 10 to 14

115 jet regulator according to FIGS. 15 to 17

118 jet regulator according to FIGS. 18 to 20 1 jet regulator according to FIGS. 21 to 234 jet regulator according to FIGS. 24 to 25

A Outlet front side of the jet regulator

/ Expectations

Claims

Expectations

1. Jet regulator (101, 106, 110, 115, 118, 121, 124) with a jet regulator housing (1), which (1) can be inserted into a water outlet of a sanitary outlet fitting and delimits a housing interior in which a jet splitter (2) Splitting openings (3) are provided, which (3) divide the water flowing through into a multitude of individual jets, and with a flow straightener (5) forming the outlet end face (A) of the jet regulator (101, 106, 110, 115, 118, 121, 124) ), which (5) has a large number of outlet openings (6), with a jet regulating device (4) being provided in the housing interior in the flow path between the jet splitter (2) and the flow straightener (5), which (4) transversely to the flow direction of the water flowing through has oriented regulating webs (7), characterized in that the flow straightener (5) and the

The jet regulating device (4) can be inserted into the jet regulator housing (1) from the downstream side (A) of the jet regulator (101, 106, 110, 115, 118, 121, 124) so that the jet regulating device (4) has at least one inner wall (8) , on which the regulating webs (7) are formed on the flat side, and that the flow straightener (5) and / or the jet regulating device (4) can be fixed in the jet regulator housing (1) by means of a form or friction fit.

2. jet regulator (101, 106, 110, 115, 118, 121, 124) according to claim 1, characterized in that the flow straightener (5) and / or the

The jet regulating device (4) can be fixed in the jet regulator housing (1) by means of a latching and / or snap connection.

3. jet regulator (101, 106, 110, 115, 118, 121, 124) according to claim 1 or 2, characterized in that the jet regulator (101, 106, 110, 115, 118, 121, 124) as a rectangular or flat jet regulator is configured and / or has a non-circular beam exit which has a greater longitudinal extent compared to the transverse extent.

4. jet regulator (101, 106, 110, 115, 118, 121) according to one of claims 1 to 3, characterized in that on the inner circumference of the jet regulator housing (1) at least one to the outlet end face (A) of the jet regulator (101,

106, 110, 115, 118, 121) open guide groove (11) is provided, into which guide groove (11) the at least one inner wall (8) can be inserted with one of its narrow edges oriented in the direction of insertion.

5. jet regulator (101, 106, 110, 115, 118, 121) according to one of claims 1 to 4, characterized in that the jet regulator housing (1) on opposite sides of its inner circumference of the housing in each case one for

Has guide groove (11) open towards the outlet end face (A), and that the at least one inner wall (8) can be inserted into the guide grooves (11) with its narrow edges oriented in the direction of insertion.

6. jet regulator (101, 106, 110, 115, 118, 121, 124) according to one of claims 1 to 5, characterized in that the regulating webs (7) are formed flat on both sides on the at least one inner wall (8).

7. jet regulator (101, 106, 110, 115, 118, 121, 124) according to one of claims 1 to 6, characterized in that the regulating webs (7) on at least one flat side of the at least one inner wall (8) in transverse to Oriented through flow direction and preferably spaced planes are formed.

8. jet regulator (101, 106, 110, 115, 118, 121, 124) according to one of claims 1 to 7, characterized in that the regulating webs (7) arranged in a downstream plane are provided as an extension of the regulating webs (7) between adjacent regulating webs (7) Through flow space a contrast provided on the inflow side web level are arranged on a gap.

9. steel regulator (101, 106, 110, 115, 118, 121, 124) according to one of claims 1 to 8, characterized in that the regulating webs (7) of the first web plane in the flow direction each have an inflow-side impact surface (12) and / or that these regulating webs (7) are rounded on their outflow side.

10. jet regulator (101, 106, 110, 115, 118, 121, 124) according to one of claims 1 to 9, characterized in that the regulating webs (7) of the web plane provided on the downstream side in the flow direction has a larger than the web width, have a longitudinal extension oriented in the flow direction and / or that these regulating webs (7) are rounded on their inflow and outflow side.

11. Jet regulator (121) according to one of claims 1 to 10, characterized in that the regulating webs (7) of the web plane provided on the outflow side in the flow direction have a longitudinal extension curved in the direction of an adjacent transverse wall (18) of the jet regulator housing (1).

12. Jet regulator (121) according to claim 11, characterized in that the curvature of adjacent regulating webs (7) is greater in the case of the outer regulating web (7) arranged closer to the transverse wall (18) compared to the respective inner regulating web (7).

13. Jet regulator (101, 106, 110, 115, 118, 121, 124) according to one of claims 1 to 12, characterized in that the regulating webs (7) have a web provided between the first web plane and the web on the downstream side in the flow direction. Plane arranged web plane have a rounded and preferably a circular web cross section.

14. jet regulator (101, 106, 110, 115, 118, 121, 124) according to one of claims 1 to 13, characterized in that the flow straightener (5) has a lattice structure of flocks of intersecting rectifier webs (13) which (13 ) limit the outlet openings (6) between them.

15. Jet regulator (124) according to one of claims 1 to 14, characterized in that the flow straightener (5) has a lattice structure made up of a family of parallel first rectifier webs (13) which are spaced apart and which are at least one at right angles to the first rectifier webs (13 ) arranged second rectifier web (13 ') cross, and that the first and the second rectifier webs (13, 13') the

Limit the outlet openings (6) of the flow straightener (6).

16. jet regulator (124) according to claim 15, characterized in that at least one of the first rectifier webs (13) and preferably at least a plurality of the first rectifier webs (13) of the Flow straightener (6) each have free web ends (24) on both sides, and that the first

Rectifier webs (13) can preferably be releasably latched with their free web ends (24) in a locking groove (25) on the inner circumference of the housing of the jet regulator housing (1).

17. Jet regulator (101, 106, 110, 115, 118, 121, 124) according to one of claims 1 to 16, characterized in that the rectifier webs (13) of the lattice structure have a greater longitudinal extent than the web width, oriented in the flow direction.

18. Jet regulator (101, 106, 110, 115, 118, 121, 124) according to one of claims 1 to 17, characterized in that the rectifier webs (13) in extension of the between the adjacent regulating webs (7) of the downstream web plane provided through-flow space are arranged on a gap.

19. Jet regulator (101, 106, 110, 115, 118, 121, 124) according to one of claims 1 to 18, characterized in that the jet splitter (2) is designed as a perforated plate which has the splitter openings (3) oriented in the flow direction .

20. jet regulator (101, 106, 110, 115, 118, 121, 124) according to one of claims 1 to 19, characterized in that the jet splitter (2) in the jet regulator housing (1) relative to the regulating webs (7) of the first on the inflow side Web plane is arranged in such a way that these regulating webs (7) are arranged in the flow direction in alignment with the splitting openings (3).

21. Jet regulator (101, 106, 110, 115, 118) according to one of claims 1 to 20, characterized in that at least one web-shaped spacer (14) on the narrow edge of the inner wall (8) on the inflow side or on the outflow side of the jet splitter (2) protrudes, which keeps this upstream narrow edge from the jet splitter (2) at a distance.

22. Jet regulator according to one of claims 1 to 21, characterized in that the flow straightener (5) and the jet regulating device (4) are integrally connected to one another or form separate components of the jet regulator from one another.

23. Jet regulator (115) according to one of claims 1 to 22, characterized in that the flow straighteners (5) and jet regulating device (4), which are designed as separate components, can be connected to one another, and that for this purpose on one component (5; 4) at least a plug-in pin (15), preferably at least two spaced-apart plug-in pins (15), which can be inserted into an associated insertion opening (16) on the other component (4; 5).

24. Jet regulator (115) according to claim 23, characterized in that the plug-in pin (15) protrudes on the narrow edge of the inner wall (8) on the downstream side and can be inserted into an associated plug-in opening (16) on the flow straightener (5) .

25. The jet regulator (115) according to claim 23 or 24, characterized in that the plug-in pin (15) can be inserted into the associated plug-in opening (16) until one at the free end of the plug-in pin / plug-in pin (15) provided cross-sectional expansion protrudes over the flow straightener (5).

26. Jet regulator (118) according to one of claims 1 to 25, characterized in that the inner wall (8) is divided into at least two wall sections (17) with regulating webs (7) molded on the flat side.

27. The jet regulator (118) according to claim 26, characterized in that the inner wall (8) is divided into wall sections (17) on which (17) at least one level of regulating webs (7) is formed.

28. jet regulator (121) according to any one of claims 1 to 27, characterized in that the at least one inner wall (8) in the jet regulator housing (1) is arranged so that the

The distance between the inner wall (8) and a first longitudinal wall (19) of the jet regulator housing (1) is greater than in comparison to the second longitudinal wall (19).

29. Jet regulator (101, 106, 110, 115, 118, 121, 124) according to one of claims 1 to 28, characterized in that the longitudinal axes of the splitter openings (3) of the jet splitter (2) approximately on the web center of the adjacent regulating web ( 7) are aligned.

30. Jet regulator according to one of claims 1 to 29, characterized in that the flow straightener (5) and / or the jet regulating device (4) is designed as a two- or multi-component injection-molded part and / or is made of an elastomer plastic (22).

31. Jet regulator according to one of claims 1 to 30, characterized in that at least a portion of the rectifier webs (13) made of an elastomer plastic (22) is made or has at least one surface made of an elastomer plastic (22).

32. Jet regulator (124) according to one of claims 1 to 31, characterized in that on the side of the flow straightener (6) facing the housing interior protrude at least one holding fork (26) and at least two spaced apart holding forks (26), in the fork opening ( 27) the at least one inner wall (8) of the jet regulating device (4) is kept insertable.

33. Jet regulator (124) according to claim 32, characterized in that the distance between the forks (28, 29) delimiting the fork opening (27) of the at least one holding fork (26) and the wall thickness of the inner wall ( 8) is adapted and dimensioned so that the inner wall (8) is preferably held at right angles to the lattice plane of the flow straightener (6) determined by the lattice structure, in particular in a tilt-proof manner on the latter (6).