EP3219860B1 - Beam controller - Google Patents

Description

The invention relates to a jet regulator with a jet regulator housing, which can be mounted on a sanitary water outlet, in which a jet separator is provided, which has flow holes dividing the water flowing through the jet regulator housing into individual jets, and with insertion parts arranged on the outflow side of the jet separator Lattice or network structure of intersecting webs, which webs define between flow openings, wherein the clear hole cross-section of the flow holes provided in the flow holes compared to the clear opening cross-section of the flow openings of at least one of the insertion parts is greater.

There are already known aerated jet regulators, which are mounted on the water outlet of a sanitary outlet fitting, there to form the escaping water to a homogeneous, non-splashing and pearly-soft water jet. The previously known ventilated jet regulators have, inside their jet regulator housing, a jet breaker, preferably designed as a perforated plate, which divides the water flowing through into a multiplicity of individual jets divides. Since the water flowing through in the region of the jet separator is accelerated by the narrowing of the flow cross section, a negative pressure is created on the downstream side of the jet separator, with the aid of which the ambient air required for mixing and aerating the water flowing through is sucked into the housing interior of the jet regulator housing. This ambient air can enter through ventilation openings in the housing interior, which are provided either on the downstream housing front or on the housing periphery of the jet regulator housing.

From the DE 101 49 335 A1 already a jet regulator of the type mentioned above is already known, which can be mounted with its jet regulator housing at the water outlet of a sanitary outlet fitting. The jet regulator housing of the prior art jet regulator is sleeve-shaped and integrally connected via film hinges with other plate or disc-shaped components of the jet regulator, which are used in the sleeve interior of the jet regulator housing. In this case, at least two of these disc-shaped components are formed as lattice structures which can be inserted from the housing front side remote from the jet splitter into the jet regulator housing and are therefore arranged on the outflow side of the jet breaker. These grid or network structures of the components arranged downstream have webs which delimit flow openings between them.

From the DE 202 15 272 U One already knows a jet regulator, the jet regulator housing is divided into two detachably connectable housing parts. In this case, the inflow-side housing part is fixedly and non-releasably connected to a jet breaker, which has a plurality of through-flow holes. In the downstream housing part are facing away from the downstream end face of the housing end face of several Can be used inserts that have a grid or network structure, crossing each other at intersection nodes webs, which bridges define between flow openings. In this case, the clear hole cross section of the flow holes provided in the flow divider is formed much smaller compared to the flow openings of the insert, because the water flowing through in the comparatively small flow holes of the jet decomposer should experience an increase in speed, which is generated on the downstream side of the jet separator a negative pressure. By means of this negative pressure bypass air is sucked through ventilation holes on the housing periphery of the jet regulator housing in the jet regulator housing, which ambient air is mixed in the downstream of the jet breaker inserts with the water flowing through and formed into a homogeneous, bead-soft discharge jet.

From the EP 2 180 102 A1 a comparably constructed aerator is previously known, whose jet regulator housing has an elongated cross-section with the jet-forming components provided in the housing interior for generating a non-circular outgoing flat jet.

Since the water flowing through is enriched with ambient air in these aerated jet regulators, the water that escapes loses its crystal-clear appearance and can also be enriched with germs in germ-laden environments.

It has therefore also created so-called non-aerated jet regulator, which usually have only a star-shaped insert in their jet regulator housing, which should form the outgoing water only to a homogeneous, non-splashing water jet. Otherwise, the water is almost unbraked exits such unventilated jet regulators, a hard voluminous water jet is usually formed in these unventilated jet regulators.

It is therefore an object to provide a jet regulator of the type mentioned above, which forms a homogeneous, non-squirting and soft water jet, without that therefore the escaping water would inevitably have to be enriched with ambient air.

The solution to this problem according to the invention consists in the jet regulator of the type mentioned above in that the webs are arranged to intersect at crossing nodes, and that the clear hole cross-section of the through-holes compared to the clear opening cross-section of the throughflow more than 50% is larger.

The jet regulator according to the invention has a jet regulator housing, which can be mounted or mounted on a sanitary water outlet. Such a sanitary water spout may for example be the water outlet of a sanitary outlet fitting or a shower head, in which shower head of the jet regulator according to the invention is used to form there also a central beam. In the jet regulator housing a jet splitter is provided which has flow holes which divide the water flowing through the jet regulator housing into individual jets. In the outflow direction of the jet breaker insertion parts are provided, each having a grid or network structure of crossing each other at crossing nodes webs, which define between them flow openings. The individual beams generated in the beam splitter are mixed again in the insertion parts and additionally braked, so that the formation of a soft water jet is favored. According to the invention, it is provided that the clear hole cross-section of the through-flow holes is greater than 50% greater than the clear opening cross-section of the throughflow openings. In this way, excessive acceleration of the water in the jet breaker is avoided, which could otherwise cause the jet of water to escape quickly and hard. In the jet regulator according to the invention, therefore, the water is formed into a homogeneous, non-squirting and soft water jet, without the water in the jet regulator housing necessarily having to be enriched with ambient air.

In order to design the clear hole cross section of the flow holes provided in the flow divider in comparison to the clear opening cross section of the flow openings of the at least one insert part significantly larger, it is advantageous if the clear hole cross-section of the flow holes compared to the clear opening cross section of the flow openings is more than twice as large.

Although the jet regulator according to the invention could indeed be designed as a ventilated jet regulator, in which the water flowing through is mixed with ambient air and enriched. However, the preferred embodiment according to the invention provides that the jet regulator as a laminar, d. H. Unvented jet regulator is formed, in which the water flowing through is not enriched and mixed by ambient air, and that the jet regulator housing is sleeve-shaped and designed at its housing periphery hole-free.

In order to mount the jet regulator according to the invention at the water outlet of a sanitary outlet fitting, this jet regulator can be used in a sleeve-shaped outlet nozzle, which can then be attached, for example with an external or internal thread on a corresponding internal or external thread at the outlet end of the sanitary outlet fitting. However, the manufacturing cost is significantly reduced if the jet regulator on the outer circumference of the housing of the jet regulator housing has an external thread with which external thread the jet regulator housing itself is preferably detachably screwed into an internal thread at the water outlet of the sanitary outlet fitting. In this embodiment can be dispensed with an additional outlet nozzle. In addition, it is possible in this embodiment, to fix the jet regulator in the water outlet of the sanitary outlet fitting, that this with sei ner outflow side or at best only slightly beyond the frontal outlet edge of the sanitary outlet fitting.

In order to avoid unwanted leakage currents in the annular gap between the housing outer circumference of the jet regulator housing on the one hand and the inner circumference at the water outlet of the sanitary outlet fitting on the other hand, it is advantageous if the jet regulator housing is radially sealed and if a groove-shaped sealing ring receptacle is provided for a sealing ring on the housing outer circumference of the jet regulator housing. If the jet regulator housing is radially sealed off from the water outlet, it is possible to dispense with an annular shoulder in the interior of the water outlet, which would be associated with an additional production outlay.

The assembly of the jet regulator according to the invention is substantially facilitated if the sealing ring receiving between the downstream peripheral edge of the housing outer circumference and the external thread is arranged. Thus, the jet regulator with the male thread provided on its outer circumference of the housing can first be easily screwed into the internal thread in the water outlet of the sanitary outlet fitting before the sealing ring can make the further screwing in more difficult.

Additionally or instead, it may be advantageous if the jet regulator housing is axially sealed relative to the water outlet of the sanitary outlet fitting and if an annular seal is provided between the inflow-side end peripheral edge of the jet regulator housing and an adjacent annular shoulder in the water outlet of the sanitary outlet fitting.

In order to favor the formation of a particularly soft exiting water jet in the jet regulator according to the invention, it is advantageous if at least two and preferably four insert parts are inserted into the jet regulator housing.

The water flowing through the jet regulator according to the invention must flow through the insert parts in a virtually labyrinth-like manner when the insert parts follow one another directly in the direction of flow. If the insert parts are arranged in direct flow of each other in the direction of flow, the water flowing through is thoroughly mixed and decelerated at the webs of the following insertion parts.

A particularly advantageous development according to the invention provides that the lattice structure of at least two of the insertion parts are formed by two sets of intersecting and at an angle to each other, preferably at right angles to each other arranged webs. Such a grid structure favors the good mixing of the water flowing through the adjacent insert parts.

In order to ensure that the water flowing through the through-flow openings of one of the insert parts is additionally split, braked and swirled at the webs of a downstream insertion part, it is expedient for the lattice structures of at least two, preferably adjacent insertion parts to be at an angle of, in particular, 45 ° to one another are arranged and when the flow passages of the inflow-side insertion part, the webs of a contrast, downstream Einsetzteiles are arranged in alignment.

In order to avoid that the inserts used in the jet regulator housing are inadvertently displaced in the direction of the inflow side of the jet regulator housing and brought out of position, it is expedient if the downstream face of the jet regulator is designed as a grid or network structure and if this grid or network structure is integrally formed on the jet regulator housing. A lattice or network structure integrally formed on the jet regulator housing and forming the outflow-end face of the jet regulator protects the components located in the interior of the jet regulator housing against unintentional displacement against the direction of flow and against vandalism.

A preferred embodiment, which favors the formation of a homogeneously emerging jet of water, provides that the net structure integrally formed on the jet regulator housing is formed by radial webs which intersect at crossing nodes with concentric webs.

The formation of a homogeneous water jet is favored when the flow holes of the jet breaker are arranged on at least one circular path and preferably on at least two concentric circular paths.

The jet splitter of the jet regulator according to the invention can be provided completely with flow holes, even in its central region.

However, in order to decelerate the water flowing through the jet regulator according to the invention particularly effectively and to form a soft water jet, it is advantageous if the flow holes arranged on at least one circular path surround a central hole-free baffle surface which is arranged on the inflow-side end face of the jet separator. The inflowing water to this hole-free baffle is deflected radially outwardly to then flow from there into the flow holes of the jet breaker. The possibly also multiple deflection of the inflowing water in the baffle area ensures a turbulence of this water flow, which ensures an additional deceleration.

A preferred embodiment according to the invention provides that at least one circumferential annular wall is provided between the flow holes delimiting the baffle surface and the central baffle surface, which is integrally formed on the inflow-side end face of the jet breaker. By this at least one circumferential annular wall, the inflowing water is slightly accumulated in the baffle and additionally decelerated. The water deflected outwards on the baffle surface initially impinges on the annular wall before it can subsequently flow into the outer flow holes of the jet breaker after flowing around the annular wall. This flow pattern causes an effective reduction of the water velocity in the region of the inflow side of the jet breaker.

A particularly simple and advantageous embodiment according to the invention provides that the outer circumference of the insert parts and possibly also of the jet breaker is formed in each case by an annular wall and that the adjacent components of the jet regulator with their annular walls are superimposed in the jet regulator housing. If the insert parts and optionally also the beam splitter each have such an outer ring wall, the grid or network structures of the insert parts and possibly also the jet splitter with its throughflow holes can be arranged and secured in a simple manner at a defined distance from one another.

To save water and to reduce the volume of water flowing through per unit time, it may be advantageous if the flow regulator a flow restrictor or a flow regulator upstream upstream.

Since the water in the flow restrictor or in the flow regulator undergoes additional acceleration, it is advantageous if the water flowing out through the flow restrictor or the flow regulator flows out onto the impact surface, where the water can again be effectively decelerated.

So that the entrained in the water flow dirt particles or limescale can not settle in the interior of the jet regulator according to the invention and affect its function, it is advantageous if the jet regulator a front screen is upstream upstream.

It also ensures the proper function of the throttle or the flow regulator, if the throttle or the flow regulator between the front strainer and the jet regulator are arranged.

In order that the jet regulator according to the invention and optionally combined with front screen, throttle or flow rate regulator can be comfortably stored and transported until its essential components are lost, it is expedient if the jet regulator, the front screen and / or the throttle or the flow rate regulator too a sanitary Einsetzzeinheit releasably connectable to each other, preferably releasably locked together, are.

Thus, the provided on the inlet side of the jet regulator components, namely attachment screen, throttle or flow regulator, are well secured against the oncoming water pressure and thus not undesirable in this area It can be advantageous if the pin supports the attachment screen, the throttle or the flow regulator.

A preferred embodiment according to the invention provides that the throttle or the flow regulator have a central throttle or control core and that the throttle or control core is encompassed by a peripheral wall which defines at least one flow gap between itself and the throttle or control core.

So that the flow rate regulator can limit and regulate the water volume flowing through in a simple (mechanical) manner to a specified maximum value, it is advantageous if the flow regulator has at least one throttle body of elastic material which surrounds the control core, if one of the control core or on the peripheral wall formed rule-profiling alternated formations and recesses and when a control gap is provided between the throttle body and the control profiling, which changes under the pressure of the water flowing through such that the flow rate regulator adjusts the water volume flowing through per unit time pressure-independent to a maximum value.

As has already been described above, it is expedient if the grid structures of at least two, preferably adjacent insert parts are arranged at an angle to one another and if the webs of a contrast-side insert part are arranged in alignment with the throughflow openings of the inflow-side insert part. In order to determine and ensure the orientation of the lattice structures of the at least two, preferably adjacent insertion parts, it is advantageous if these have at least two adjacent insertion parts secured against rotation are inserted into the jet regulator housing.

A preferred embodiment according to the invention provides that between the housing inner circumference of the jet regulator housing on the one hand and at least two adjacent insert parts, on the other hand, a rotation lock is provided. It is advantageous if the anti-rotation device has at least one provided on the housing inner circumference training or indentation, which cooperates with a formation or molding on at least one insert part and in particular on the annular wall. By this rotation lock the desired orientation of the grid or network structure of this at least one insert part is set against unintentional rotation.

The webs forming the grid or network structure of at least one insert part can be arranged in approximately parallel planes, such that the webs are integrally connected to one another at their mutually facing web sides. A preferred embodiment according to the invention, which favors the space-saving and particularly flat embodiment of the jet regulator according to the invention, in contrast, provides that the grid or network structure of at least one insert part forming and crossing each other at intersection nodes webs are arranged approximately in a plane.

If necessary, the jet regulator according to the invention can also be arranged in particular in a central area of a shower head in order to also form a central water jet there. However, preferred is an embodiment in which the sanitary water outlet is designed as a water outlet of a sanitary outlet fitting.

Further developments according to the invention will become apparent from the following description of the figures in conjunction with the claims and the drawings. The invention will be described in more detail below with reference to preferred embodiments.

Fig. 1

einen am Wasserauslauf einer sanitären Auslaufarmatur montierbaren Strahlregler, in einem Längsschnitt, der zuströmseitig mit einem Vorsatz- oder Filtersieb zu einer sanitären Einsetzeinheit lösbar verbunden ist,

Fig. 2

den Strahlregler aus Fig. 1 in einer Seitenansicht,

Fig. 3

den Strahlregler aus den Fig. 1 und 2 in einer perspektivischen Draufsicht auf seine Zuströmseite,

Fig. 4

den Strahlregler aus den Fig. 1 bis 3 in einer auseinandergezogenen perspektivischen Einzelteildarstellung, wobei die Einzelteile hier von der Zuströmseite aus betrachtet dargestellt sind,

Fig. 5

den Strahlregler aus den Fig. 1 bis 4 in einer auseinandergezogenen perspektivischen Einzelteildarstellung, wobei die Einzelteile hier von der Abströmseite aus betrachtet dargestellt sind,

Fig. 6

eine ebenfalls in einem Längsschnitt gezeigte sanitäre Einsetzeinheit, die aus einem zuströmseitigen Vorsatz- oder Filtersieb, einem abströmseitig angeordneten Strahlregler gemäß den Fig. 1 bis 5 sowie einem dazwischen angeordneten Durchflussmengenregler gebildet ist,

Fig. 7

die sanitäre Einsetzeinheit gemäß Fig. 6 in einer Seitenansicht,

Fig. 8

die sanitäre Einsetzeinheit aus den Fig. 6 und 7 in einer perspektivischen Draufsicht auf ihre Zuströmseite, und

Fig. 9

die sanitäre Einsetzeinheit aus den Fig. 6 bis 8 in einer auseinaridergezogenen perspektivischen Einzelteildarstellung.

It shows:

Fig. 1

a jet regulator which can be mounted on the water outlet of a sanitary outlet fitting, in a longitudinal section which is releasably connected on the inflow side to a sanitary inserting unit by means of an attachment or filter screen,

Fig. 2

off the jet regulator Fig. 1 in a side view,

Fig. 3

the jet regulator from the Fig. 1 and 2 in a perspective top view on its inflow side,

Fig. 4

the jet regulator from the Fig. 1 to 3 in an exploded perspective detail view, the items are shown here viewed from the inflow side,

Fig. 5

the jet regulator from the Fig. 1 to 4 in an exploded perspective detail view, the items are shown here viewed from the downstream side,

Fig. 6

a likewise shown in a longitudinal section sanitary inserting unit, which consists of an inflow-side Attachment or filter, a downstream arranged jet regulator according to Fig. 1 to 5 and a flow regulator arranged therebetween is formed,

Fig. 7

the sanitary inserting unit according to Fig. 6 in a side view,

Fig. 8

the sanitary inserting unit from the 6 and 7 in a perspective top view on its inflow side, and

Fig. 9

the sanitary inserting unit from the Fig. 6 to 8 in a auseinaridergezogenen perspective detail view.

In the Fig. 1 to 9 is a jet regulator in two versions 1, 10 shown. The jet regulators 1, 10 have a jet regulator housing 2, which can be mounted on the water outlet of a sanitary outlet fitting. In the jet regulator housing 2, a jet splitter 3 is provided which has flow holes 4, which divide the water flowing through the jet regulator housing 2 into individual jets. Inserting parts 5, 6, 7, 8 are provided in the outflow direction of the jet breaker 3, each of which has a grid or network structure 9 of webs 12, 13 crossing each other at crossing nodes 11, which delimit flow openings 14 between them. The individual beams generated in the beam splitter 3 are mixed again in the insertion parts 5, 6, 7, 8 and additionally braked, so that the formation of a soft water jet is favored. In this case, the clear hole cross-section of each of the flow holes 4 provided in the flow divider 3 compared to the clear opening cross-section of each of the flow openings 14 at least one of the insert parts 5, 6, 7, 8 and preferably formed of all inserts larger. In this case, the clear hole cross-section of the flow holes 4 compared to the clear opening cross-section of the flow openings 14 more than 50% and here designed more than twice as large. In this way, an excessive acceleration of the water in the area of the jet breaker 3 is avoided, which could otherwise cause the jet of water to escape quickly and hard. In the jet regulators 1, 10 shown here, therefore, the water is formed into a homogeneous, non-splashing and particularly soft water jet, without the water in the jet regulator housing 2 necessarily having to be enriched with ambient air.

The jet regulators according to the Fig. 1 to 9 are here designed as a laminar, ie non-aerated jet regulator, in which the water flowing through is not enriched with ambient air and mixed. Since the sleeve-shaped jet regulator housing 2 thus requires no ventilation openings, the jet regulator housing 2 is formed free of holes at its housing periphery.

In the Fig. 1 to 9 is clearly visible that the jet regulator 1, 10 on the outer circumference of the housing of the jet regulator housing 2 have an external thread 21 with which the jet regulator housing 2 of the jet regulator 1, 10 in an internal thread in the water outlet of a sanitary outlet fitting not shown here is detachably screwed.

In order to avoid leakage flows that pass through the annular gap between the inner circumference of the water outlet of the sanitary outlet fitting on the one hand and the housing outer circumference of the jet regulator housing 2 on the other hand, the jet regulator 1, 10 against the sanitary outlet fitting axially and additionally or instead also be radially sealed. To the jet regulator housing 2 to seal radially, a groove-shaped sealing ring receptacle 16 is provided on the housing outer circumference of the jet regulator housing 2, which is formed between two annular flanges 17, 18 arranged on the housing side. In this sealing ring receptacle 16, which is preferably arranged between the downstream peripheral edge of the housing outer circumference and a housing outer circumference arranged on the external thread 21, a circumferential sealing ring 19 is inserted.

If the jet regulator housing 2 in addition or instead axially sealed against the outlet fitting, it can be provided between the inflow-side end peripheral edge 20 of the jet regulator housing 2 and an adjacent annular shoulder in the water outlet of the sanitary outlet fitting a ring seal not shown here.

The jet regulator 1, 10 can be screwed with the external thread 21 in a corresponding internal thread in the water outlet of the sanitary outlet fitting with the outside circumference of its Strahlreglergehäuses 2 arranged on the housing outer circumference of the jet regulator housing that the jet regulator housing 2 is largely and preferably practically completely surrounded by the water outlet and the downstream housing end of the jet regulator housing. 2 practically no or at best barely over the adjacent end peripheral edge on the water outlet of the sanitary outlet fitting survives.

In the jet regulator housing 2 of the jet regulator 1, 10 at least two and preferably four insertion parts 5, 6, 7, 8 are used, which follow each other directly in the flow direction. The insertion parts 5, 6, 7, 8 of the jet regulators 1, 10 shown here have a grid structure 9, which are formed by two sets of intersecting and at right angles to each other arranged webs 12, 13. there the lattice structures 9 of at least two preferably adjacent insertion parts 5, 6, 7 and 8 are arranged at an angle of preferably 45 ° to each other, such that in the alignment of the flow-through openings 14 of the inflow-side insertion part 5, 6, or 7, the webs 12, 13 of a on the other hand arranged downstream of the insert part 6, 7 or 8 are arranged.

In order to prevent vandalism and to prevent intentional or unintentional pushing up of the insertion parts 5, 6, 7, 8 in the jet regulator housing 2, the downstream end face of the jet regulator 1, 10 is formed as a grid or network structure 22 integrally formed on the jet regulator housing 2 is. The comparatively coarse structure of the insertion parts 5, 6, 7, 8 and / or the grid or network structure 22 provided on the downstream end face of the jet regulator 1, 10 effectively counteracts calcification of the jet regulator 1, 10. In this case, the webs 12, 13 and 22, 23, which form the grid or network structure 9, 22 at the insertion parts 5, 6, 7, 8 or at the downstream end face of the jet regulators 1, 10, arranged approximately in a plane. In the beam regulators 1, 10 shown here, the net structure 22 forming the downstream end face of the jet regulators 1, 10 is formed by radial webs 23 which intersect at intersection nodes 24 with concentric webs 25.

In the Fig. 1 . 4 . 5 . 6 and 9 is clearly visible that the flow holes 4 of the jet breaker 3 are arranged on at least one circular path and preferably on at least two concentric circular paths. These flow holes 4 arranged on at least one circular path surround a central, hole-free baffle surface 26 which is arranged on the inflow-side end face of the jet breaker 3. there is between the baffle 26 bounding flow holes 4 and the central baffle 26 at least one circumferential annular wall 27 is provided, which is integrally formed on the inflow-side end face of the jet breaker 3. The water flowing to the jet splitter 3 is thus strongly decelerated in the region of the baffle surface 26 and deflected radially outwards, before the water can flow into the flow holes 4 there. Due to the strong turbulence and repeated deflection of the water on the inflow side of the Strahlzerlergers 3, a particularly strong deceleration of the water in the housing interior of the jet regulator housing 2 is achieved.

Like from the Fig. 1 and 6 becomes clear, the outer circumference of the insertion parts 5, 6, 7, 8 and also of the beam breaker 3 is formed in each case by an annular wall 28, wherein the adjacent components 3, 5, 6, 7, 8 of the jet regulator 1, 10 with their ring walls 28 superimposed are inserted into the jet regulator housing 2. Through the annular walls 28 of the insert parts 5, 6, 7, 8 and the beam splitter 3, these components of the jet regulators 1, 10 are kept at a defined distance from each other.

So that dirt particles or lime deposits entrained in the water can not settle in the interior of the jet regulator 1, 10 and impair its function, an intent or filter screen 29 is provided on the inflow side of the jet regulators 1, 10.

In the in the Fig. 1 to 9 1, 10, the jet regulator 10 arranged downstream is connected to the attachment screen 29 and optionally to a flow rate regulator 30 arranged therebetween, if necessary via at least one adapter ring 40, to form a sanitary insertion unit preferably releasably connected and in particular releasably latched. At the baffle 26 of the beam breaker 3, a pin 32 projects, which is integrally connected to the beam splitter 3. In this case, the pin 32 can protrude so far beyond the inflow side of the jet breaker 3 that this pin 32 supports the flow rate regulator 30 or the attachment sieve 29.

The flow rate regulator 30 is intended to regulate and limit the water volume flowing through the inserting unit per unit of time to a defined maximum value independently of pressure. The flow regulator 30 has a central control core 33, which is encompassed by a peripheral wall 34 which defines at least one flow gap 35 between itself and the control core 33. The flow regulator 30 has at least one throttle body 36 made of elastic material, which surrounds the control core 33. On the peripheral wall 34 or - as here - on the control core 33, a, formed of alternating shapes and indentations rule profiling 37 is provided which limits a control gap 38 between the throttle body 36 and the control profile 37, which changes under the pressure of the water flowing through in that the flow rate regulator 30 adjusts the water volume flowing through per unit time to a maximum value independently of pressure. Like from the Fig. 1 and 6 becomes clear, the jet regulator 1, 10, the front screen 29 and optionally also the flow rate regulator 30 are releasably latched.

In order to secure the orientation of the grid structures 9 of the insertion parts 5, 6, 7, 8 against unintentional rotation and to determine this orientation of these grid structures 9, the insertion parts 5, 6, 7, 8 are used secured against rotation in the jet regulator housing. It is between the housing inner circumference the jet regulator housing 2 on the one hand and at least one of the insertion parts 5, 6, 7, 8 on the other hand provided a rotation lock. This anti-rotation device has at least one indentation 31 provided on the inner circumference of the housing, which cooperates with a complementary formation on the annular walls 28 of the insertion parts 5, 6, 7, 8.

LIST OF REFERENCE NUMBERS

1

Jet regulator (according to the Fig. 1 to 5 )

2

Flow regulator housing

3

beam splitter

4

Flow hole (in the jet separator 3)

5

insert

6

insert

7

insert

8th

insert

9

Lattice structure (inserts 5, 6, 7, 8)

10

Jet regulator (according to the Fig. 6 to 9 )

11

Junction node (in the inserts 5, 6, 7, 8)

12

Webs (the lattice structure 9)

13

Webs (the lattice structure 9)

14

Flow openings (in the insertion parts 5, 6, 7, 8)

16

Seal ring accommodating

17

annular flange

18

annular flange

19

seal

20

Front peripheral edge (the jet regulator 1, 10)

21

external thread

22

network structure

23

Webs (the network structure)

24

Intersection node (the network structure 22)

25

Webs (the network structure 22)

26

baffle

27

annular wall

28

ring wall

29

attachment screen

30

Flow regulator

31

(on the housing inner circumference of the jet regulator housing 2)

32

pen

33

regulating core

34

peripheral wall

35

Flow gap

36

throttle body

37

regulating profile

38

control gap

39

Molding (on the annular wall 28 of the insert parts 5, 6, 7, 8)

40

adapter ring

Claims (30)

1. Jet regulator (1, 10) having a jet regulator housing (2) which can be mounted on a sanitary water outlet, in which jet regulator housing there is provided a jet splitter (3) which has throughflow holes (4) which divide up the water flowing through the jet regulator housing (2) into individual jets, and having insert parts (5, 6, 7, 8) arranged on the outflow side of the jet splitter, which (5, 6, 7, 8) each have a grid or mesh structure (9) composed of webs (12, 13) which intersect one another, which webs (12, 13) between them border throughflow openings (14), wherein the clear hole cross section of the throughflow holes (4) provided in the jet splitter (3) is greater than the clear opening cross section of the throughflow openings (14) of at least one of the insert parts (5, 6, 7, 8), characterized in that the webs (12, 13) are arranged so as to intersect at intersection nodes (11), and in that the clear hole cross section of the throughflow holes (4) is more than 50% greater than the clear opening cross section of the throughflow openings (14) .
2. Jet regulator according to Claim 1, characterized in that the clear hole cross section of the throughflow holes (4) is more than twice as large as the clear opening cross section of the throughflow openings (14).
3. Jet regulator according to Claim 1 or 2, characterized in that the jet regulator (1, 10) is in the form of an unventilated jet regulator, in the case of which the water flowing through is not enriched and mixed with ambient air, and in that the jet regulator housing (2) is sleeve-shaped and formed without holes at its housing circumference.
4. Jet regulator according to one of Claims 1 to 3, characterized in that the jet regulator (1, 10) has an external thread (21) on the housing outer circumference of its jet regulator housing (2), by way of which external thread (21) the jet regulator housing (2) can be screwed, preferably releasably, into an internal thread in the water outlet of the sanitary outlet fitting.
5. Jet regulator according to one of Claims 1 to 4, characterized in that the jet regulator housing (2) is radially sealed off and in that a groove-like sealing ring receptacle (16) for a sealing ring (19) is provided on the housing outer circumference of the jet regulator housing (2).
6. Jet regulator according to Claim 5, characterized in that the sealing ring receptacle (16) is arranged between the outflow-side circumferential edge of the housing outer circumference of the jet regulator housing (2) and the external thread (21).
7. Jet regulator according to one of Claims 1 to 6, characterized in that the jet regulator housing (2) is axially sealed off with respect to the outlet fitting, and in that, for this purpose, a ring-shaped seal is provided between the inflow-side face circumferential edge (20) of the jet regulator housing (2) and an adjacent ring-shaped shoulder in the water outlet of the sanitary outlet fitting.
8. Jet regulator according to one of Claims 1 to 7, characterized in that at least two and preferably four insert parts (5, 6, 7, 8) are inserted into the jet regulator housing (2).
9. Jet regulator according to one of Claims 1 to 8, characterized in that the insert parts (5, 6, 7, 8) are arranged in direct succession in the flow direction.
10. Jet regulator according to one of Claims 1 to 9, characterized in that the grid structures (9) of at least two of the insert parts (5, 6, 7, 8) are formed by two sets of webs (12, 13) which intersect one another and which are arranged at an angle with respect to one another, preferably at right angles with respect to one another.
11. Jet regulator according to one of Claims 1 to 10, characterized in that the grid structures (9) of at least two preferably adjacent insert parts (5, 6, 7, 8) are arranged at an angle of in particular 45° with respect to one another, and in that the throughflow openings (14) of the inflow-side insert part (5, 6, 7) are arranged in alignment with the webs (12, 13) of an insert part (6, 7, 8) arranged downstream thereof.
12. Jet regulator according to one of Claims 1 to 11, characterized in that the outflow-side face surface of the jet regulator (1, 10) is in the form of a grid or mesh structure (22), and in that said grid or mesh structure (22) is formed integrally on the jet regulator housing (2).
13. Jet regulator according to Claim 12, characterized in that the mesh structure (22) formed integrally on the jet regulator housing (2) is formed by radial webs (23) which (23) intersect concentric webs (25) at intersection nodes (24).
14. Jet regulator according to one of Claims 1 to 13, characterized in that the throughflow holes (4) of the jet splitter (3) are arranged on at least one circular path, and preferably on at least two concentric circular paths.
15. Jet regulator according to Claim 14, characterized in that the throughflow holes (4) arranged on at least one circular path border a central impingement surface (26) without holes, which (26) is arranged on the inflow-side face surface of the jet splitter (3) .
16. Jet regulator according to Claim 15, characterized in that an encircling ring-shaped wall (27) is provided between the throughflow holes (4), which border the impingement surface (26), and the central impingement surface (26), which (27) is formed integrally on the inflow-side face surface of the jet splitter (3).
17. Jet regulator according to one of Claims 1 to 16, characterized in that the outer circumference of the insert parts (5, 6, 7, 8) and possibly also of the jet splitter (3) is formed in each case by a ring-shaped wall (28), and in that the adjacent constituent parts (3, 5, 6, 7, 8) of the jet regulator (1, 10) are inserted into the jet regulator housing (2) such that their ring-shaped walls (28) lie one on top of the other.
18. Jet regulator according to one of Claims 1 to 17, characterized in that a throughflow throttle or a throughflow-rate regulator (30) is positioned upstream of the jet regulator (10) at the inflow side.
19. Jet regulator according to Claim 15 and 18, characterized in that the water flowing out through the throughflow throttle or through the throughflow-rate regulator (30) flows out onto the impingement surface (26).
20. Jet regulator according to one of Claims 15 to 19, characterized in that a pin (32) projects above the impingement surface (26), which (32) is preferably integrally connected to the jet splitter (3).
21. Jet regulator according to one of Claims 1 to 20, characterized in that an upstream screen (29) is positioned upstream of the jet regulator (1, 10) at the inflow side.
22. Jet regulator according to Claim 18 and 21, characterized in that the throttle or the throughflow-rate regulator (30) is arranged between the upstream screen (29) and the jet regulator (10).
23. Jet regulator according to Claim 22, characterized in that the jet regulator (1, 10), the upstream screen (29) and/or the throttle or the throughflow-rate regulator (30) are detachably connectable to one another, preferably detachably connectable to one another by detent action, to form a sanitary insert unit.
24. Jet regulator according to Claim 20 and one of Claims 21 to 23, characterized in that the pin (32) supports the upstream screen (29), the throttle or the throughflow-rate regulator (30).
25. Jet regulator according to one of Claims 18 to 24, characterized in that the throttle or the throughflow-rate regulator (30) has a central throttling or regulating core (33), and in that the throttling or regulating core (33) is engaged around by a circumferential wall (34), which (34) delimits at least one throughflow gap (35) between itself and the throttling or regulating core (33).
26. Jet regulator according to one of Claims 18 to 25, characterized in that the throughflow-rate regulator (30) has a throttling body (36) composed of elastic material, which throttling body engages around the regulating core (33), in that a regulating profiling (37) is provided on the regulating core (33) or on the circumferential wall (34), which regulating profiling is formed from protuberances and recesses which alternate with one another, and in that, between the throttling body (36) and the regulating profiling (37), there is provided a control gap (38) which, under the pressure of the water flowing through, changes such that the throughflow-rate regulator (30) regulates the water volume flowing through per unit of time to a maximum value regardless of the pressure.
27. Jet regulator according to one of Claims 1 to 26, characterized in that at least two adjacent insert parts (5, 6, 7, 8) are inserted in a rotationally secured manner into the jet regulator housing (2).
28. Jet regulator according to Claim 27, characterized in that a rotational securing means is provided between the housing inner circumference of the jet regulator housing (2), at one side, and the at least two adjacent insert parts (5, 6, 7, 8), at the other side.
29. Jet regulator according to Claim 28, characterized in that the rotational securing means has at least one protuberance or recess (31) provided on the housing inner circumference, which (31) interacts with a recess or protuberance (39) on at least one insert part (5, 6, 7, 8) and in particular on the ring-shaped wall (28) thereof.
30. Jet regulator according to one of Claims 1 to 29, characterized in that the webs (12, 13) which form the grid or mesh structure (9) of at least one insert part (5, 6, 7, 8) and which intersect one another at intersection nodes (11) are arranged approximately in a plane.

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