DE202020103566U1 - Aerator - Google Patents

Abstract

Jet regulator (101, 106, 110, 115, 118, 121) 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) with splitter openings (3) is provided, which (3) divide the water flowing through into a multitude of individual jets, and with a flow straightener (5) which forms the outlet end face (A) of the jet regulator (101, 106, 110, 115, 118, 121), the (5) has a plurality of outlet openings (6), a jet regulating device (4) being provided in the interior of the housing in the flow path between the jet splitter (2) and the flow straightener (5), which (4) has regulating webs (7) oriented transversely to the flow direction of the water flowing through , characterized in that the flow straightener (5) and the jet regulating device (4) are inserted into the jet regulator housing (1) from the downstream side (A) of the jet regulator (101, 106, 110, 115, 118, 121) bar 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) by means of positive or frictional engagement can be fixed in the jet regulator housing (1).

Description

The invention relates to a jet regulator with a jet regulator housing, which 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 plurality of outlet openings, with a jet regulating device being provided in the housing interior in the flow path between the jet splitter and the flow rectifier, which has regulating webs oriented transversely to the direction of flow of the flowing water.

From the DE 196 47 798 A1 a jet regulator is previously known 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 insertable 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 splitter openings the water flowing into the water line is divided into a corresponding number of individual jets. At the outlet end of the known jet regulator, a flow straightener is provided which has a plurality of outlet openings in order to shape the individual jets, which are swirled inside the housing and possibly mixed with ambient air, into a homogeneous 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 case of 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 made of 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. In this case, 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.

From the EP 0 931 199 B1 a jet regulator is already known which has an inflow-side jet splitting device and an outflow-side flow straightener in its jet regulator housing, a jet regulating device being provided in the flow path between the jet splitter and the flow straightener. The jet regulating device of this previously 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 outset, 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 jet regulator of the type mentioned in particular consists 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 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. The flowing through is in these decomposition openings Water 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 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 complex injection molding tools being necessary 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 can be fixed in the jet regulator housing by means of a latching or snap connection. The form fit formed by this latching 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 an 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. An embodiment according to the invention, which is particularly simple in construction and manufacture, provides, however, 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 an outflow-side 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 to additionally 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 downstream side.

In order to subsequently reunite the water jets that are braked and additionally divided in the jet regulating device, it is advantageous if the regulating webs of the web plane provided on the outflow side in the flow direction have a longer length oriented in the flow direction than the web width and / or if these regulating webs have 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 have a longitudinal extension curved in the direction of an adjacent transverse wall of the jet regulator housing. 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 if the water flowing through the jet regulator housing in the area of the jet regulating device is also well guided into the edge areas 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 end face can equalize and combine the water flowing out there into a homogeneous overall jet without the flow straightener opposing the flowing water with excessive flow resistance, it is advantageous if the flow straightener has a lattice structure made up of multitudes of intersecting straightening webs 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 “in a gap” as an extension of the 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 inside circumference of the housing or can be integrally formed on the inside 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 perform their function particularly well, it is advantageous if the jet splitter in the jet regulator housing is arranged relative to the regulating webs of the first web plane on the upstream side in such a way that these regulating webs are in alignment in the flow direction the decomposition openings are arranged.

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 outflow 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 integrally connected to one another or form separate components of the jet regulator from one another.

If these components are to be produced 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 for this purpose 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 much easier, provides that the plug (s) protrudes from the narrow edge of the inner wall on the downstream side and can be plugged into an associated plug-in opening on the flow straightener.

The inner wall of the jet regulating device can also be captive and, if necessary, permanently mounted on the flow straightener if the plug (s) can be inserted into the associated plug-in opening until a cross-sectional widening 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.

An embodiment according to the invention that is particularly easy to manufacture 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 well formed 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 cross-section of the housing even with such an embodiment, it can be advantageous if the longitudinal axes of the splitter 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, a uniform 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 aligned approximately 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 are designed as a two-component or multi-component injection-molded part and / or are 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.

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 the aid of preferred exemplary embodiments.

• 1 einen Flachstrahlregler in einer Draufsicht auf seine zuströmseitige Gehäusestirnfläche,
• 2 den Strahlregler aus 1 in einem Längsschnitt durch Schnittebene II-II gemäß 1, wobei erkennbar ist, dass in den Gehäuseinnenraum des Strahlreglergehäuses von der Auslaufstirnseite aus ein Strömungsgleichrichter sowie eine Strahlreguliereinrichtung einsetzbar sind, und wobei die Strahlreguliereinrichtung eine Innenwand aufweist, an der beidseits als Prallkörper dienende Stege vorstehen,
• 3 den Strömungsgleichrichter sowie die Strahlreguliereinrichtung des in den 1 und 2 gezeigten Strahlreglers in einer perspektivischen Darstellung, wobei die die Strahlreguliereinrichtung bildende Innenwand mit den beidseits angeformten Stegen einstückig mit dem die Auslaufstirnseite des Strahlreglers bildenden Strömungsgleichrichter verbunden ist,
• 4 den Strahlregler aus den 1 bis 3 in einer auseinandergezogenen Perspektivdarstellung seiner als Kunststoff-Spritzgussteile ausgebildeten Bestandteile, wobei diese Bestandteile hier in einer perspektivischen Unteransicht auf die in Einbaulage des Strahlreglers dem Anwender zugewandten Flachseite des Strahlreglergehäuses dargestellt ist,
• 5 die Bestandteile des in den 1 bis 4 gezeigten Strahlreglers in einer auseinandergezogenen perspektivischen Unteransicht auf die in Einbaulage des Strahlreglers dem Anwender abgewandte Flachseite des Strahlreglergehäuses,
• 6 einen ebenfalls als Flachstrahlregler ausgebildeten Strahlregler in einer Draufsicht auf seine zuströmseitige Gehäusestirnfläche,
• 7 den Strahlregler aus 6 in einem Längsschnitt durch Schnittebene VII/VII gemäß 6, wobei zu erkennen ist, dass die von der Auslaufstirnseite aus eingesetzten und als Strömungsgleichrichter sowie als Strahlreguliereinrichtung dienenden Bestandteile des Strahlreglers als voneinander separate Bestandteile ausgebildet sind,
• 8 die als Strömungsgleichrichter und als Strahlreguliereinrichtung dienenden Bestandteile des in den 6 und 7 gezeigten Strahlreglers in einer auseinandergezogenen Einzelteildarstellung,
• 9 den Strahlregler aus den 6 bis 8 in einer auseinandergezogenen perspektivischen Unteransicht seiner Bestandteile,
• 10 einen hier ebenfalls als Flachstrahlregler ausgebildeten weiteren Strahlregler in einer Draufsicht auf seine zuströmseitige Stirnfläche,
• 11 den Strahlregler aus 10 in einem Längsschnitt durch Schnittebene XI-XI, wobei die durch eine Innenwand mit beidseits angeformten Regulierstegen ausgebildete Strahlreguliereinrichtung sowie der die Auslaufstirnseite bildende und hier als Zweikomponenten-Spritzgussteil hergestellte Strömungsgleichrichter als separate Bestandteile des Strahlreglers ausgebildet sind, und wobei der plattenförmige Strömungsgleichrichter derart am Innenumfang des Strahlreglergehäuses formschlüssig verrastbar oder verschnappbar ist, dass auch die in das Strahlreglergehäuse eingeschobene Strahlreguliereinrichtung dort gesichert ist,
• 12 den Strömungsgleichrichter und die Strahlreguliereinrichtung des in den 10 und 11 gezeigten Strahlreglers in einer auseinandergezogenen perspektivischen Seitenansicht,
• 13 den Strömungsgleichrichter des in den 10 bis 12 gezeigten Strahlreglers in einer Seitenansicht,
• 14 den hier als Zweikomponenten-Spritzgussteil hergestellten Strömungsgleichrichter des in den 10 bis 13 gezeigten Strahlreglers in einem Querschnitt durch Schnittebene XIV-XIV in 13,
• 15 einen als Flachstrahlregler ausgestalteten Strahlregler in einer Draufsicht auf seine zuströmseitige Stirnfläche,
• 16 den Strahlregler aus 15 in einem Längsschnitt durch Schnittebene XVI-XVI gemäß 15, wobei die Strahlreguliereinrichtung und der hier als Zweikomponenten-Spritzgussteil hergestellte Strömungsgleichrichter als separate Kunststoff-Spritzgussteile hergestelltund aneinander fixierbar sind,
• 17 den Strömungsgleichrichter und die Strahlreguliereinrichtung des in den 15 und 16 dargestellten Strahlreglers in einer perspektivischen Einzelteildarstellung vor dem Verbinden aneinander,
• 18 einen Strahlregler in einer Draufsicht auf seine zuströmseitige Stirnfläche, wobei auch der hier dargestellte Strahlregler als Flachstrahlregler ausgebildet ist,
• 19 den Strahlregler aus 18 in einem Längsschnitt durch Schnittebene XIX-XIX in 18, wobei die Innenwand einer Strahlreguliereinrichtung zu erkennen ist, die aus drei separat hergestellten Wandabschnitten zusammengesetzt ist,
• 20 die drei Wandabschnitte der die Strahlreguliereinrichtung bildenden Innenwand des in 18 und 19 gezeigten Strahlreglers mit den beidseits angeformten Stegen, sowie den die Auslaufstirnseite des Strahlreglers bildenden Strömungsgleichrichter in einer auseinandergezogenen perspektivischen Einzelteildarstellung,
• 21 einen als Flachstrahlregler ausgebildeten Strahlregler in einem Längsschnitt,
• 22 den Strahlregler aus 21 in einem gegenüber 21 um 90° gedrehten Längsschnitt in Schnittebene XXII-XXII gemäß 21, und
• 23 den Strahlregler aus den 21 und 22 in einem Detail-Längsschnitt in dem in 22 eingekreisten Teilbereich, wobei der längsgeschnittene Strahlzerleger im Bereich zweier benachbarter Zerlegeröffnungen dargestellt ist.

It shows:

• 1 a flat jet regulator in a plan view of its housing face on the inflow side,
• 2 the aerator off 1 in a longitudinal section through section plane II-II according to 1 It can be seen that a flow straightener and a jet regulating device can be inserted into the interior of the jet regulator housing from the outlet end face, and the jet regulating device has an inner wall on which webs serving as impact bodies protrude on both sides,
• 3 the flow straightener and the jet regulating device of the in the 1 and 2 the jet regulator shown in a perspective representation, the inner wall forming the jet regulating device being connected in one piece with the webs formed on both sides with the flow straightener forming the outlet end face of the jet regulator,
• 4th the aerator from the 1 until 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 jet regulator housing facing the user in the installed position of the jet regulator,
• 5 the components of the 1 until 4th The jet regulator shown 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,
• 6th a jet regulator, also designed as a flat jet regulator, in a plan view of its housing face on the inflow side,
• 7th the aerator off 6th in a longitudinal section through section plane VII / VII according to 6th It can be seen that the components of the jet regulator inserted from the outlet end face and serving as a flow straightener and as a jet regulating device are designed as separate components,
• 8th serving as a flow straightener and as a jet regulator components of the in the 6th and 7th the jet regulator shown in an exploded view of individual parts,
• 9 the aerator from the 6th until 8th in an exploded perspective view from below of its components,
• 10 another jet regulator, also designed here as a flat jet regulator, in a top view of its face on the inflow side,
• 11 the aerator off 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 here manufactured as a two-component injection-molded part, are designed as separate components of the jet regulator, and the plate-shaped flow straightener in such a way on the inner circumference of the The jet regulator housing can be locked or snapped in a form-fitting manner, so that the jet regulating device pushed into the jet regulator housing is also secured there,
• 12th the flow straightener and the jet regulator of the in the 10 and 11 the jet regulator shown in an exploded perspective side view,
• 13th the flow straightener in the 10 until 12th shown jet regulator in a side view,
• 14th the flow straightener of the in the, manufactured here as a two-component injection-molded part 10 until 13th The jet regulator shown in a cross section through section plane XIV-XIV in 13th ,
• 15th a jet regulator designed as a flat jet regulator in a plan view of its front face on the inflow side,
• 16 the aerator off 15th in a longitudinal section through section plane XVI-XVI according to 15th The jet regulating device and the flow straightener, which is produced here as a two-component injection-molded part, are produced as separate plastic injection-molded parts and can be fixed to one another,
• 17th the flow straightener and the jet regulator of the in the 15th and 16 the jet regulator shown in a perspective view of individual parts before they are connected to each other,
• 18th a jet regulator in a plan view of its front face on the inflow side, whereby the jet regulator shown here is also designed as a flat jet regulator,
• 19th the aerator off 18th in a longitudinal section through section plane XIX-XIX in 18th , whereby the inner wall of a jet regulating device can be seen, which is composed of three separately manufactured wall sections,
• 20th the three wall sections of the inner wall of the in 18th and 19th The jet regulator shown with the webs formed on both sides, as well as the flow straightener forming the outlet face of the jet regulator in an exploded perspective view of individual parts,
• 21 a jet regulator designed as a flat jet regulator in a longitudinal section,
• 22nd the aerator off 21 in an opposite 21 longitudinal section rotated by 90 ° in section plane XXII-XXII according to 21 , and
• 23 the aerator from the 21 and 22nd in a detailed longitudinal section in the in 22nd circled partial area, wherein the longitudinally cut jet splitter is shown in the area of two adjacent splitter openings.

In the 1 until 23 are different Executions 101 , 106 , 110 , 115 , 118 and 121 a jet regulator shown. The aerators 101 , 106 , 110 , 115 , 118 , 121 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 shape the water exiting there into a homogeneous, non-splashing and possibly also pearly-soft water jet. The aerator housing 1 delimits a housing interior in which a jet splitter 2 with dissection openings 3 is provided. With the versions shown here 101 , 106 , 110 , 115 , 118 and 121 is the plate-shaped jet splitter 2 with its dissection openings 3 on the inner circumference of the jet regulator housing 1 integrally molded. In the cutting openings 3 the flowing water is divided into a multitude of individual jets. These individual jets are created inside the jet regulator housing 1 in a downstream jet regulating device 4th additionally braked and divided before the water flowing through in this way in a subsequent flow straightener 5 is reunited into a soft, homogeneous overall jet. The flow straightener 5 , of a variety of outlet openings 6th has, forms the outlet face A. of the aerator 101 , 106 , 110 , 115 , 118 respectively. 121 . In the flow path between the jet splitter 2 and this flow straightener 5 is the jet regulating device in the interior of the housing 4th provided, the regulating webs oriented transversely to the direction of flow of the water flowing through 7th Has. The flow straightener 5 and the jet regulator 4th are from the outlet face A. of the jet regulator out into the jet regulator housing 1 applicable. Around the regulating bars 7th To be able to hold in the flow path transversely to the flow direction of the water, the jet regulating device 4th at least one inner wall 8th on the flat side the regulating webs 7th are molded. The jet regulator 4th with their at least one inner wall 8th as well as the regulating bars formed on it 7th can, like the rest of the aerator housing 1 and the other components of the jet regulator shown here 101 , 106 , 110 , 115 , 118 , 121 , produce in a simple manner as injection molded parts and in particular as plastic injection molded parts, without complex injection molding tools being necessary for the production of these components. The flow straightener is thereby used 5 and the jet regulator 4th by means of a form fit or friction fit on the inner circumference of the jet regulator housing 1 fixed in such a way that these components 4th , 5 not unintentionally out of the jet regulator housing even under the pressure of the incoming water 1 fall out.

In the 2 , 7th , 11 , 16 , 19th and 21 it can be seen that the jet regulator shown here is on the inflow side of the jet regulator housing 1 an attachment screen 9 that has to filter out any lime and dirt particles that may be carried along in the incoming water before they can impair the function of the jet regulator inside the housing. Between the attachment screen 9 and the jet splitter 2 can be a flow rate regulator 10 be arranged that the flow rate of the from the inflow side to the opposite outlet end face A. of the jet regulator housing 1 The water flowing through has to be regulated to a specified maximum value independent of pressure. In the designs shown here 101 , 106 , 110 , 115 , 118 and 121 the jet regulator is designed as a rectangular or flat jet regulator and has a non-circular jet outlet which has a larger longitudinal extension compared to the transverse extension. To the jet regulator 4th inside the jet regulator housing 1 To be able to position correctly, there is at least one on the inside circumference of the jet regulator housing towards the outlet end face A. of the jet regulator open guide groove 11 provided in which guide groove the at least one inner wall 8th the jet regulator 4th 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 here, the aerator housing 1 of the jet regulator versions shown here 101 , 106 , 110 , 115 , 118 , 121 one on each opposite side of the inner circumference of the housing, towards the outlet face A. open guide groove 11 on, the at least one inner wall 8th with their narrow edges oriented in the direction of insertion into the guide grooves 11 is insertable. In this way, a correctly positioned assembly of the inner wall 8th with the regulating bars molded onto it 7th ensured in a simple manner.

The regulating bars 7th are on the at least one inner wall 8th Shaped flat on both sides. To that along the jet regulator 4th and its regulating bars 7th To be able to shape flowing water in the desired way are the regulating webs 7th on at least one flat side of the at least one inner wall 8th integrally formed in planes oriented transversely to the flow direction and preferably spaced apart from one another. To that through the aerator housing 1 water flowing through in the subsequent web levels of the jet regulating device 4th The regulating webs arranged in a plane on the downstream side are particularly good at shaping 7th arranged in an extension of the through-flow space provided between adjacent regulating webs of a web plane provided on the upstream side.

About the beam splitter 2 The regulating webs have to quickly decelerate incoming individual beams and also split them up 7th the first web plane in the flow direction has an inflow-side baffle in each case 12th and are rounded on their downstream side.

To that in the jet regulator 4th The regulating bars have to reunite the braked and additionally split water jets 7th the web plane provided on the outflow side in the flow direction has a greater longitudinal extent than the web width, oriented in the flow direction, and is designed to be rounded on both its inflow side and its outflow side.

With the aerator versions shown here 101 , 106 , 110 , 115 , 118 , 121 show the regulating bars 7th a central web plane arranged between the first web plane and the web plane provided on the downstream side in the flow direction has a rounded and preferably a 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.

So that the one on the outlet face A. provided and here plate-shaped flow straighteners 5 the water flowing out there can be evened out and combined into a homogeneous overall jet without the flow straightener 5 opposes an excessive flow resistance to the incoming water, the flow straightener has 5 the aerator shown here 101 , 106 , 110 , 115 , 118 , 121 a lattice structure of multitudes of mutually crossing rectifier bars 13th on, between them the outlet openings 6th of the flow straightener 5 limit. To the flowing water in the flow straightener 5 The rectifier bars have to be shaped into a homogeneously tapering beam band 13th of the lattice structure has a greater longitudinal extent, oriented in the flow direction, compared to the web width.

The shaping of a homogeneous outlet jet is promoted by the rectifier bars 13th in extension of the between the adjacent regulating webs 7th the outflow-side web plane provided through-flow space are arranged on a gap.

Thus already the regulating webs arranged in the first web level on the inflow side 7th Can fulfill their function particularly well is the jet splitter 2 in the jet regulator housing 1 relative to the regulating bars 7th the first web level on the inflow side arranged in such a way that these regulating webs 7th in the direction of flow in the alignment of the splitting openings 3 are arranged.

So that on the downstream side of the jet splitter 2 Exiting individual jets can expand unhindered and mix with one another in a mixing zone, are located on the downstream side of the jet splitter or - as here - on the narrow edge of the inner wall on the upstream side 8th at least two web-shaped spacers 14th in front of the upstream narrow edge from the jet splitter 2 keep your distance. These bar-shaped spacers 14th ensure a sufficient distance between the downstream side of the jet splitter 2 one hand and the inner wall 8th on the other hand, so that in this area there is a mixing zone in the housing interior of the jet regulator housing 1 can train.

While in the 1 until 5 aerator version shown 101 the flow straightener 5 and the jet regulator 4th are integrally connected to each other, form the flow straightener 5 and the jet regulator 4th the other aerator versions 106 , 110 , 115 , 118 and 121 separate components or components of these aerators.

In the case of the 15th until 17th aerator version shown 115 are the flow straighteners manufactured as separate components 5 and jet regulator 4th connectable to each other. These are on one component and here on the inner wall 8th the jet regulator 4th at least two spaced-apart plug pins 15th provided, each in an associated insertion opening 16 on the other component and here on the flow straightener 5 are pluggable. The plug-in pins 15th stand on the narrow edge of the inner wall on the downstream side 8th in front of and can each in an associated insertion opening 16 on the flow straightener 5 be inserted until one at the free pin end of the plug-in pin 15th intended cross-section expansion via the flow straightener 5 protrudes. This cross-sectional expansion, which in the assembled state of the jet regulator harpoon-like over the downstream side of the jet regulator 115 protrudes, the flow straightener becomes 5 safe and secure on the inner wall 8th the jet regulator 4th held.

In the case of the 18th until 20th aerator version shown 118 is the inner wall 8th in at least two and here in three wall sections 17th divided on which wall sections 17th the regulating bars 7th are molded. The wall sections 17th are successively in the guide grooves 11 on the inside circumference of the aerator housing 1 inserted in such a way until the out of these wall sections 17th formed inner wall 8th forms. To each of the wall sections 17th is one level of regulating bars 7th molded. In the case of the 18th until 20th aerator version shown 118 the regulating bars arranged in the individual bar levels 7th In spite of the comparatively small spacing, they can also be shaped well in different web cross-sections.

At the in 1 until 5 aerator version shown 101 becomes the plate-shaped flow straightener 5 with the inner wall molded to it at right angles 8th the jet regulator 4th from the downstream side A. of the aerator 101 out into the interior of the aerator housing 1 inserted until one on the outer circumference of the flow straightener 5 provided locking projection in a complementary locking groove snaps into the housing inner circumference of the jet regulator housing. Through this form-fitting connection of the flow straightener 5 on the inside circumference of the aerator housing 1 will also affect the flow straightener 5 molded jet regulating device 4th fixed in the interior of the housing.

The jet regulating device can also be operated in a comparable manner 4th the in the 15th until 17th aerator version shown 115 in the interior of the aerator housing 1 fix. Is the jet regulator 4th with the flow straightener 5 connected, can these components 4th , 5 in the jet generator housing 1 Hold securely and firmly if additionally or instead on the inner wall 8th the jet regulator 4th and especially on the narrow sides of this inner wall 8th one with the inner circumference of the aerator housing 1 cooperating latching or snap connection is provided.

With the aerator versions 106 , 110 , 118 and 121 is first the jet regulator 4th from the downstream side into the jet regulator housing 1 inserted before then the plate-shaped flow straightener 5 into the jet regulator housing 1 inserted and on the inside circumference of the aerator housing 1 is latched or snapped in such a way that the jet regulating device 4th safe and secure in the interior of the aerator housing 1 is held.

To the one from the aerator housing 1 to shape outflowing flat jet in its narrow-sided edge areas on both sides with a sufficient amount of water, have in the 21 until 23 aerator version shown 121 the regulating bars 7th of the web plane provided on the outflow side in the throughflow direction, one in the direction of an adjacent transverse wall 18th of the jet regulator housing 1 curved longitudinal extension, this curvature of adjacent regulating webs 7th where closer to the transverse wall 18th arranged external regulating bar 7th compared to the regulating bar on the inside 7th is bigger.

From a comparison of the 4th and 5 it becomes clear that the aerator shown here and in particular the aerator version 101 only on one of its long walls 19th and here only on its longitudinal wall facing away from the user in the position of use 19th at least one slot-shaped ventilation opening 21 has, which in the flow direction below the jet splitter 2 arranged mixing zone opens and through the ambient air into the housing interior of the jet regulator housing 1 can flow in. The aerator housing 1 points on its outer circumference of the housing to the longitudinal wall facing away from the user in the position of use 19th an indentation 20th on that from the outlet side A. of the jet regulator housing to the ventilation opening 21 leads. Is now the inner wall 8th approximately in the longitudinal center plane of the jet regulator housing 1 arranged, this leads to the inner wall 8th compared to the longitudinal wall facing the user in the position of use 19th is at a greater distance than in relation to the ventilation opening facing away from the user in the position of use and the ventilation opening 21 having longitudinal wall 19th . So that the water flowing through is still over the cross section of the jet regulator housing 1 can flow through evenly distributed, is with the in 21 until 23 aerator version shown 121 provided that the longitudinal axes of the butcher openings 3 of the jet splitter 2 about the middle of the web of the adjacent regulating web 7th are aligned. Although those with their free web ends up to the adjacent longitudinal wall 19th reaching regulating bars 7th on both sides of the inner wall 8th have a different web length, the water flowing through is uniform over the cross section of the jet regulator housing 1 distributed because the longitudinal axes of the decomposition openings 3 of the jet splitter 2 each approximately to the center of the web of the adjacent regulating web 7th are aligned.

To avoid excessive calcification of the regulating bars 7th and / or the rectifier bars 13th the flow straightener can counteract this 5 and / or the jet regulating device 4th designed as a two-component or multi-component injection-molded part and in particular made of an elastomer plastic 22. In the in the 11 until 14th and 15th until 17th shown embodiments is the flow straightener 5 designed as a two-component injection-molded part, with a hard-elastic plastic component shown in fine-dashed lines in the figures 23 forms a frame stiffening the flow straightener, while on the other hand the lattice structure wetted by the water and / or the outer circumference of the flow straightener resting on the inner circumference of the housing 5 is made at least superficially from a cross-hatched and clearly lighter-looking elastomer plastic 22. In this case, an embodiment is preferred in which at least a partial area of the rectifier bars 13th is made from an elastomer plastic 22 or has at least one surface made from an elastomer plastic 22.

List of reference symbols

1

Aerator housing

2

Jet splitter

3

Butcher openings

4th

Jet regulating device

5

Flow straightener

6th

Outlet openings (of the flow straightener 5 )

7th

Regulating bars

8th

Inner wall

9

Attachment screen

10

Flow regulator

11

Guide groove

12th

Baffle

13th

Rectifier bars

14th

Spacers

15th

Plug-in pin

16

Insertion opening

17th

Wall sections

18th

Transverse wall

19th

Longitudinal wall

20th

Molding

21

Ventilation opening

23

Elastomer plastic

101

Jet regulator according to 1 until 5

106

Jet regulator according to 6th until 9

110

Jet regulator according to 10 until 14th

115

Jet regulator according to 15th until 17th

118

Jet regulator according to 18th until 20th

121

Jet regulator according to 21 until 23

A.

Outlet face of the jet regulator

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 19647798 A1 [0002]
• EP 0931199 B1 [0003]

Claims (29)

Jet regulator (101, 106, 110, 115, 118, 121) 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) with splitter openings (3) is provided, which (3) divide the water flowing through into a multitude of individual jets, and with a flow straightener (5) which forms the outlet end face (A) of the jet regulator (101, 106, 110, 115, 118, 121), the (5) has a plurality of outlet openings (6), a jet regulating device (4) being provided in the interior of the housing in the flow path between the jet splitter (2) and the flow straightener (5), which (4) has regulating webs (7) oriented transversely to the flow direction of the water flowing through , characterized in that the flow straightener (5) and the jet regulating device (4) are inserted into the jet regulator housing (1) from the downstream side (A) of the jet regulator (101, 106, 110, 115, 118, 121) It is possible 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) by means of a form fit or friction fit can be fixed in the jet regulator housing (1). Jet regulators (101, 106, 110, 115, 118, 121) according to Claim 1 , characterized in 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 latching and / or snap connection. Jet regulators (101, 106, 110, 115, 118, 121) according to Claim 1 or 2 , characterized in that the jet regulator (101, 106, 110, 115, 118, 121) is designed as a rectangular or flat jet regulator and / or has a non-circular jet outlet which has a greater longitudinal extent compared to the transverse extent. Jet regulators (101, 106, 110, 115, 118, 121) according to one of the Claims 1 until 3 , characterized in that at least one guide groove (11) open towards the outlet end face (A) of the jet regulator (101, 106, 110, 115, 118, 121) is provided on the inner circumference of the jet regulator housing (1), in 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. Jet regulators (101, 106, 110, 115, 118, 121) according to one of the Claims 1 until 4th , characterized in that the jet regulator housing (1) has a guide groove (11) open towards the outlet end face (A) on opposite sides of its inside circumference, and that the at least one inner wall (8) with its narrow edges oriented in the direction of insertion into the guide grooves ( 11) is insertable. Jet regulators (101, 106, 110, 115, 118, 121) according to one of the Claims 1 until 5 , characterized in that the regulating webs (7) are formed flat on both sides of the at least one inner wall (8). Jet regulators (101, 106, 110, 115, 118, 121) according to one of the Claims 1 until 6th , characterized in that 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. Jet regulators (101, 106, 110, 115, 118, 121) according to one of the Claims 1 until 7th , characterized in that the regulating webs (7) arranged in a downstream plane are arranged in an extension of the through-flow space provided between adjacent regulating webs (7) of a web plane provided on the upstream side in a gap. Steel regulator (101, 106, 110, 115, 118, 121) according to one of the Claims 1 until 8th , 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. Jet regulators (101, 106, 110, 115, 118, 121) according to one of the Claims 1 until 9 , characterized in that the regulating webs (7) of the web plane provided on the outflow side in the flow direction have a greater longitudinal extent than the web width, oriented in the flow direction and / or that these regulating webs (7) are rounded on their inflow and outflow side. Jet regulator (121) according to one of the Claims 1 until 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). Aerator (121) 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). Jet regulators (101, 106, 110, 115, 118, 121) according to one of the Claims 1 until 12th , characterized in that the regulating webs (7) one between the first web plane and the web plane provided on the outflow side in the flow direction have a rounded and preferably a circular web cross section. Jet regulators (101, 106, 110, 115, 118, 121) according to one of the Claims 1 until 13th , characterized in that the flow straightener (5) has a lattice structure of groups of mutually crossing straightening bars (13) which (13) delimit the outlet openings (6) between them. Jet regulators (101, 106, 110, 115, 118, 121) according to one of the Claims 1 until 14th , characterized in that the rectifier webs (13) of the lattice structure have a greater longitudinal extension than the web width, oriented in the direction of flow. Jet regulators (101, 106, 110, 115, 118, 121) according to one of the Claims 1 until 15th , characterized in that the rectifier webs (13) are arranged in an extension of the through-flow space provided between the adjacent regulating webs (7) of the downstream web plane. Jet regulators (101, 106, 110, 115, 118, 121) according to one of the Claims 1 until 16 , characterized in that the jet splitter (2) is designed as a perforated plate which has the splitter openings (3) oriented in the flow direction. Jet regulators (101, 106, 110, 115, 118, 121) according to one of the Claims 1 until 17th , characterized in that the jet splitter (2) is arranged in the jet regulator housing (1) relative to the regulating webs (7) of the first web plane on the inflow side in such a way that these regulating webs (7) are aligned in the flow direction in the alignment of the splitter openings (3) . Jet regulator (101, 106, 110, 115, 118) according to one of the Claims 1 until 18th , characterized in that at least one web-shaped spacer (14) protrudes on the upstream narrow edge of the inner wall (8) or also the downstream side of the jet splitter (2), which keeps this upstream narrow edge at a distance from the jet splitter (2). Aerator according to one of the Claims 1 until 19th , 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. Jet regulator (115) according to one of the Claims 1 until 20th , characterized in that the flow straightener (5) and jet regulating device (4), which are designed as separate components, can be connected to one another, and that for this purpose at least one plug-in pin (15), preferably at least two spaced-apart plug-in pins ( 15) protrudes / protrudes which can be inserted into an associated insertion opening (16) on the other component (4; 5). Jet regulator (115) Claim 21 , characterized in that the plug-in pin (s) (15) protrudes from 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). Jet regulator (115) Claim 21 or 22nd , characterized in that the plug-in pin (s) (15) can be inserted into the associated plug-in opening (16) until a cross-sectional expansion provided at the free end of the plug-in pin (s) (15) protrudes beyond the flow straightener (5). Jet regulator (118) according to one of the Claims 1 until 23 , characterized in that the inner wall (8) is divided into at least two wall sections (17) with regulating webs (7) formed on the flat side. Jet regulator (118) Claim 24 , 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. Jet regulator (121) according to one of the Claims 1 until 25th , characterized in that the at least one inner wall (8) is arranged in the jet regulator housing (1) in such a way that 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). Jet regulators (101, 106, 110, 115, 118, 121) according to one of the Claims 1 until 26th , characterized in that the longitudinal axes of the splitter openings (3) of the jet splitter (2) are aligned approximately with the web center of the adjacent regulating web (7). Aerator according to one of the Claims 1 until 27 , 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 from an elastomer plastic (22). Aerator according to one of the Claims 1 until 28 , characterized in that at least a portion of the rectifier webs (13) from a Elastomer plastic (22) is made or has at least one surface made of an elastomer plastic (22).

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