EP1470298B1 - Jet regulator - Google Patents

Abstract

The spray regulator (1), at the outflow from a sanitary fitting, is within the housing (6) of the spray unit, where air is mixed with water to give a spray to break down any solids. The housing is in two sections (7,8) bonded together, with the spray control immovably fixed in the inflow housing section (7), with the perforated plate (2) of the spray unit with water flow openings (3). A spray control (4) is downstream of the perforated plate. The outflow housing section (8) is of rubber or a thermoplastic elastomer, at least at the water outflows.

Description

The invention relates to a jet regulator, which has in the interior of a built-in housing designed as a perforated plate jet disintegrating device downstream of a Strahlreguliereinrichtung which has at least two insertable in the built-in housing inserts, which have transverse to the flow direction oriented webs, which between them Limit passage openings.

A jet regulator of the type mentioned is for example from the DE 30 00 799 A1 known. The previously known jet regulator, which can be installed for example in the outlet nozzle of a sanitary outlet fitting, has inside its built-in housing designed as a perforated plate jet disintegrating device, which divides the inflowing water jet into a plurality of individual jets. These individual jets are - optionally after an addition of air - formed in a Strahlreguliereinrichtung to a homogeneous, pearly-soft and non-squirting water jet.

In the previously known jet regulator, the perforated plate serving as the jet-splitting device is designed as a separate plastic part which can be inserted from the inflow side into the built-in housing of the jet regulator. In order to dissect the incoming water jet in the perforated plate well into the individual jets, a comparatively short axial length of the flow holes located in the perforated plate and thus a correspondingly small plate thickness of the hotplate is desired. Since with their plate plane transverse to the flow direction oriented perforated plate, however, can also be exposed to high water pressures, and since the perforated plate made of plastic, in particular at high water temperatures and a too small plate thickness tends to undesirable impairing function deformations, a certain minimum thickness of the perforated plate is required.

Since the perforated plate is to be stored in the built-in housing on a corresponding annular flange, the previously known jet regulator also has a comparatively large housing diameter, which makes a correspondingly large minimum diameter of the outlet mouthpiece of the sanitary fitting required. The expense associated with balancing these partly conflicting requirements is further enhanced by the fact that different versions of this multiple-part jet regulator may have to be stocked for different flow classes.

From the DE-U-200 06 163 a jet regulator is known, the installation housing is divided into two interconnected housing parts. In the housing interior of the previously known jet regulator, a flow rectifier is provided, which is followed by a homogenizer in the flow direction. While the flow straightener aligns the individual jets flowing in the line cross section in approximately the same direction of flow, these same direction individual jets are then formed in the homogenizer to a homogeneous, pearly-soft and non-squirting water jet. In this case, the flow rectifier, which is comparatively large and compared to the subsequent homogenizer has substantially larger flow openings, fixedly and permanently connected to the inflow-side housing part of the mounting housing.

Since a flow straightener for aligning the individual jets must also regularly have a comparatively large axial length and thus a correspondingly large plate thickness, the plate-shaped and provided with flow holes flow straightener of DE-U-200 06 163 previously known jet regulator sufficiently stable to hold even high water pressures without further notice. Since the out DE-U-200 06 163 previously known jet regulator has no jet disintegrating device, in this prior art, not even the above to DE 30 00 799 A1 identified problems.

Out DE 10027987-A is still a jet regulator known which has a designed as a plate, jet decomposition device. In the built-in housing of the jet regulator Einstzteile are arranged, which have transverse webs.

It is therefore an object to provide a jet regulator of the type mentioned above, which is characterized even with small case diameters by a high dimensional stability and yet low production cost.

The inventive solution to this problem is in the jet regulator of the type mentioned is that the built-in housing is divided into at least two housing parts, which are connected to one another in a direction transverse to the inflow direction separation plane that an inflow-side housing part with the jet disintegration device firmly and permanently connected is that a downstream housing part is designed sleeve-shaped and in this housing part, the at least two insertion parts of the Strahlreguliereinrichtung be used, that the at least two insertion parts are in the Strahlreguliereinrichtung associated housing part from the inflow side up to a Einsteckanschlag or a support can be used and that the webs the at least two adjacent insert parts are arranged in the form of lattices or networks, crossing at intersection nodes.

The jet regulator according to the invention is subdivided into at least two housing parts and thus at least into an inflow-side and an outflow-side housing part. Of these housing parts an inflow-side housing part is firmly and permanently connected to the jet disintegrating device. Since even a sensitive jet disintegrating device, for example a thin perforated plate, is securely, firmly and protectively connected to the housing part at its peripheral edge, no significant functionally impairing deformation of the jet disintegrating device is to be expected even at hot water temperatures and high water pressures. Since the jet disintegrating device is held firmly and inseparably on the inside wall of the housing, and since an annular flange is no longer required as a support for the jet disintegrating device, the jet regulator can be designed with a comparatively small housing diameter even at high flow rates, as in the known prior art only was possible with jet regulators with low flow rate. By firmly connected to the built-in housing jet disassembling the installation housing undergoes a radial reinforcement, which makes the sleeve-shaped mounting housing also a total of fracture and dimensionally stable. While in prior art beam regulators, in which a separate perforated plate was mounted as a jet disintegrating device in the outer housing, always sealing problems between perforated plate and sleeve-shaped outer housing occurred, the jet regulator according to the invention has the significant advantage that these sealing problems do not arise due to the one-piece between Strahlzerlegeeinrichtung and zuströmseitigem housing part. Since the built-in housing consists of at least two housing parts which can be connected to one another, a jet regulating device downstream of the perforated plate downstream of the perforated plate and optionally further functional units required can be inserted into the built-in housing as required. The jet regulator according to the invention records Therefore, by a high dimensional stability with low manufacturing costs.

The jet regulator according to the invention has, inside its built-in housing, a jet regulating device which has at least two insertable parts which can be inserted into the built-in housing. These at least two insertion parts have webs which are arranged in a plane oriented transversely to the direction of flow and which are arranged in the manner of a lattice or net, crossing at intersection nodes. By virtue of this grid or net-like structure, the at least two insertion parts can also have a multiplicity of webs on a comparatively small cross-sectional area, which divide the inflowing water flow into a multiplicity of individual beams. Thus, even at high flow rates on a relatively small cross-sectional area with low production costs, an effective mixing and jet control can be achieved. Even with a large number of webs, these can be arranged in a lattice-like or net-like manner relative to one another in such a way that the passage openings are nevertheless sufficiently large to allow dirt particles entrained in the liquid flow to pass through.

In order to further increase the distribution of the individual beams and to additionally improve the beam-regulating properties even on the smallest cross-sectional area, it is provided according to the invention that the webs of the at least two adjacent insert parts of the beam-regulating device are arranged in a lattice or net shape, intersecting at crossing nodes. The jet regulating device of the jet regulator according to the invention thus has at least two insertion parts, which, for example, have webs crossing at the intersection node like a lattice. At this intersection, each individual water jet is again so effectively into several individual beams divided, that even at high flow rates on a comparatively small cross-sectional area of the jet regulator according to the invention, an effective mixing and jet control can be achieved.

Since the built-in housing of the jet regulator according to the invention is divided into at least two housing parts, which can be connected to one another in a transverse to the inflow direction separation plane, the jet regulator according to the invention may optionally be designed like a box and if necessary, located in at least one of its housing parts functional units can be replaced , In this case, the Strahlzerlegeeinrichtung a Strahlreguliereinrichtung downstream downstream, which combines the individual beams generated by the beam splitter back into a homogeneous, pearly-soft overall beam.

Since the jet disintegrating device is integrally connected to the associated housing part, the inflow-side housing part of the jet regulator according to the invention can be produced with little effort as a one-piece plastic injection molded part. Since the built-in housing has two housing parts which can be connected to one another in a parting plane oriented transverse to the inflow direction, the jet regulator according to the invention is characterized by a reduced production outlay.

It is possible that at least two housing parts of the jet regulator according to the invention can be connected to one another, for example, by means of an adhesive or welded connection.

However, the housing parts of the jet regulator according to the invention can be particularly easily and conveniently connected to each other when the housing parts of the built-in housing releasably with each other are latched.

It is possible that the Strahlreguliereinrichtung the jet regulator is modular and it is assigned a plurality of selectively combinable with each other insert parts.

In this case, a preferred embodiment according to the invention provides that at least one insertion part of the jet regulating device is arranged relative to the jet disintegrating device such that the individual jets generated in the jet disintegrating device impinge on crossing nodes of the at least one insertion part.

An embodiment according to the invention provides that the webs and the intersection nodes of the at least two adjacent insertion parts are aligned with each other. A particular advantage of such an embodiment is that at least two insertion parts can be identical.

In another refinement embodiment according to the invention, which is characterized by a particularly effective division of the water jets in the smallest space, it is provided that the passage openings of an insert part, the cross nodes of the adjacent insert part are downstream in the flow direction.

Here, a simple and producible with little effort embodiment according to the invention provides that at least one inflow and / or outflow-side insert part is configured lattice-shaped and has two intersecting shares parallel grid bars. Additionally or alternatively, an inflow and / or an outflow-side insertion part may have a family of radial webs which adjoin the intersection node with a crowd cross concentric or annular surrounding webs. According to a further proposal according to the invention it is provided that an inflow and / or a downstream Einsetzteil has star-shaped or net-like crossing webs. However, it is also possible for the webs of at least one insert part to form a honeycomb-shaped lattice structure.

A space-saving embodiment of the jet regulator according to the invention, which is also space-saving in the axial direction, is favored if the webs of at least one insert part are arranged in a plane oriented preferably transverse to the flow direction and if in particular the insert parts are designed plate-shaped.

In order to reunite the single rays produced in the jet regulating device downstream to form a homogeneous, non-spraying total jet, it is advantageous if the flow regulator is downstream of a flow rectifier having passage openings whose opening width is smaller than the height in the flow direction. It is particularly expedient if the flow rectifier is arranged at the outlet end of the built-in housing.

The flow straightener can be integrally connected to the built-in housing or used as a separate insert in the built-in housing. while a usable as a separate insert part in the built-in housing jet regulator additionally supports the modular design of the jet regulator according to the invention, a flow rectifier connected in one piece with the built-in housing can also serve as a downstream vandalism backup of the jet regulator.

Also, the flow straightener the jet regulator according to the invention can in its embodiment to the application and be adapted to the purpose. For example, it is provided that the flow rectifier has rectangular, circular segment-shaped or honeycomb-shaped passage openings.

It is also possible that the flow rectifier and / or the Strahlreguliereinrichtung have at least one metal mesh.

The effect of the Strahlreguliereinrichtung used is further increased when the flow holes of the perforated plate, the crossing nodes of an immediately following Einsetzteiles the Strahlreguliereinrichtung are connected downstream.

A preferred embodiment according to the invention provides that the outlet-side housing part at least in the region of the water outlet opening has a soft and / or water-repellent surface. The advantage of this embodiment is the absence of calcification in the region of its water outlet opening. In addition, a soft surface in particular can be easily cleaned by manually stripping off possible deposits.

For the same reasons, it may be advantageous if, in addition or instead, the outlet-side housing part is made of an elastic material at least in the region of the water outlet opening. It is preferable to use rubber, silicone, thermoplastic elastomers or other rubber-elastic materials.

In order to favor the ease of manufacture of the jet regulator according to the invention also in the region of its outlet-side housing part, it is advantageous if the outlet-side housing part essentially of an elastic material and / or a material with a soft or water-repellent surface is made.

Thus, a housing part made of rubber-elastic material is sufficiently stable in itself and can be secured for example by a latching connection to the adjacent housing part, it is advantageous if the outlet-side housing part is stiffened by circumferentially preferably evenly distributed longitudinal webs.

In this case, a preferred embodiment according to the invention provides that the longitudinal webs are provided at least in the region of the outlet opening.

A particularly advantageous further development according to the invention of its own worth-worthy significance provides that the outlet-side housing part in the region of the water outlet opening has at least one constriction or the like constriction of its flow cross-section. This constriction or the like constriction of the flow cross-section has a calibrating effect on the outflowing water jet and its jet pattern. The constriction of the flow cross-section is provided in the region of the water outlet opening and thus in a region downstream of possible interference contours in the flow direction. By calibrating the water jet, a homogeneous, non-squirting and low-noise spray pattern is significantly favored.

In order to further simplify the production of the jet regulator according to the invention, it is advantageous if the outlet-side housing part is preferably connectable to the housing part adjacent to the inflow side by way of a particularly circumferential detent connection.

Further features of the invention will become apparent from the following description of inventive embodiments in conjunction with the claims and the drawings.

Fig. 1

ein als Strahlregler ausgestaltetes sanitäres Einbauteil in einem Längsschnitt, das eine zuströmseitige Strahlzerlegeeinrichtung aufweist, der in Durchströmrichtung eine Strahlreguliereinrichtung nachgeschaltet ist, die mehrere voneinander beabstandete Einsetzteile hat, wobei ein Strömungsgleichrichter die abströmseitige Stirnseite dieses Strahlreglers bildet,

Fig. 2

ein Einsetzteil der Strahlreguliereinrichtung in einer Draufsicht (Fig.2a) und in einem Längsschnitt (Fig.2b), wobei das Einsetzteil sich an Kreuzungsknoten gitterförmig kreuzende Stege hat,

Fig. 3

ein mit Figur 2 vergleichbares Einsetzteil in einer Draufsicht (Fig.3a) und in einem Längsschnitt (Fig.3b),

Fig. 4

die zur Strahlreguliereinrichtung miteinander kombinierten Einsetzteile aus Figur 2 und 3 in einer Draufsicht,

Fig. 5

ein Einsetzteil in einer Draufsicht (Fig.5a) und in einem Längsschnitt (Fig.5b), das zwei Gruppen sich an Kreuzungsknoten kreuzender Stege hat, wobei eine Gruppe konzentrisch umlaufende Stege aufweist, wäh- rend eine zweite Gruppe aus radialen Stegen besteht,

Fig. 6

ein Einsetzteil in einer Draufsicht (Fig.6a) und in einem Längsschnitt (Fig.6b), welches Einsetzteil an Kreuzungsknoten netzartig miteinander verknüpfte Stege hat,

Fig. 7

ein mit Figur 5 vergleichbares Einsetzteil in einer Draufsicht (Fig.7a) und in einem Längsschnitt (Fig.7b),

Fig. 8

die zur Strahlreguliereinrichtung miteinander kombinierten Einsetzteile aus Figur 5 und 7 in einer Draufsicht,

Fig. 9

einen in das Gehäuse des Einbauteiles einsetzbaren Strömungsgleichrichter mit wabenartigen Durchströmöffnungen in einer Draufsicht (Fig.9a) und in einem Längsschnitt (Fig.9b),

Fig. 10

einen mit Figur 9 funktionell vergleichbaren Strömungsgleichrichter in einer Draufsicht (Fig.10a) und in einem Längsschnitt (Fig.10b) wobei der Strömungsgleichrichter kreissegmentförmige Durchströmöffnungen hat,

Fig. 11

einen siebartigen Einsatz, dessen Stege durch ein Metallsieb gebildet sind, wobei der Einsatz zusätzlich zu den oder statt der in den Figuren 2, 3, 5, 6 und 7 dargestellten Einsetzteile und/oder zusätzlich zu den oder statt der in den Figuren 9 und 10 gezeigten Strömungsgleichrichter in das Einbau-Gehäuse einsetzbar ist, in einer Draufsicht (Fig.11a) und in einem Längsschnitt (Fig.11b),

Fig. 12

einen mit Figur 11 funktionell vergleichbaren Einsatz in einer Draufsicht (Fig.12a) und in einem Längsschnitt (Fig.12b), wobei der Einsatz - ähnlich wie in Fig.11 - hier ebenfalls ein quer zur Durchströmrichtung orientiertes Metallsieb aufweist,

Fig. 13

zwei baugleiche Einsetzteile einer Strahlreguliereinrichtung in einer Draufsicht, wobei die Stege und die Kreuzungsknoten dieser benachbarten Einsetzteile miteinander fluchten, und

Fig. 14

einen, in einem Auslaufmundstück befindlichen Strahlregler in einem Teil-Längsschnitt, dessen unteres hülsenförmiges Gehäuseteil aus einem elastischen Material hergestellt ist.

It shows:

Fig. 1

a Sanitäres built-in part designed as a jet regulator in a longitudinal section, which has an inflow-side Strahlzerlegeeinrichtung downstream of a Strahlreguliereinrichtung having a plurality of spaced-apart inserts, wherein a flow rectifier forms the downstream end side of this jet regulator,

Fig. 2

an insertion part of the jet regulating device in a plan view ( 2a ) and in a longitudinal section ( 2b ), wherein the insert part has lattice-shaped crossing webs at intersection nodes,

Fig. 3

one with FIG. 2 comparable insert part in a plan view ( 3a ) and in a longitudinal section ( 3b )

Fig. 4

the combined to the Strahlreguliereinrichtung insert parts FIG. 2 and 3 in a plan view,

Fig. 5

an insert in a plan view ( 5a ) and in a longitudinal section ( 5 b ), which has two groups of webs crossing at intersection nodes, one group having concentrically surrounding webs, while a second group of radial webs exists,

Fig. 6

an insert in a plan view ( 6a ) and in a longitudinal section ( Figure 6b ), which insertion part has web-like interlinked webs at intersection nodes,

Fig. 7

one with FIG. 5 comparable insert part in a plan view ( 7a ) and in a longitudinal section ( Figure 7b )

Fig. 8

the combined to the Strahlreguliereinrichtung insert parts FIG. 5 and 7 in a plan view,

Fig. 9

a usable in the housing of the insert flow straightener with honeycomb flow openings in a plan view ( 9a ) and in a longitudinal section ( 9b )

Fig. 10

one with FIG. 9 Functionally comparable flow straightener in a plan view ( Figure 10a ) and in a longitudinal section ( 10B ) wherein the flow rectifier has circular segment flow openings,

Fig. 11

a sieve-like insert whose webs are formed by a metal mesh, wherein the insert in addition to or instead of in the Figures 2 . 3 . 5 . 6 and 7 shown inserts and / or in addition to or instead of in the Figures 9 and 10 can be used in the built-in housing shown flow rectifier in a plan view ( 11A ) and in one Longitudinal section ( 11B )

Fig. 12

one with FIG. 11 Functionally comparable use in a plan view ( Figures 12a ) and in a longitudinal section ( Fig.12B ), with the use - similar to in Figure 11 - Here also has a transverse to the flow direction oriented metal mesh,

Fig. 13

two identical insertion parts of a Strahlreguliereinrichtung in a plan view, wherein the webs and the crossing nodes of these adjacent insertion parts are aligned, and

Fig. 14

a, located in an outlet mouthpiece jet regulator in a partial longitudinal section, the lower sleeve-shaped housing part is made of an elastic material.

In FIG. 1 a sanitary fitting is shown, which is insertable into the outlet mouthpiece of a sanitary outlet fitting. The insert is here designed as a jet regulator 1, which serves to produce a homogeneous, pearly soft and non-squirting water jet. The jet regulator 1 has for this purpose a jet decomposing device 2, which is designed as a perforated plate and divides the inflowing water flow into a plurality of individual beams. For this purpose, the perforated plate 2 has a corresponding number of flow holes 3, which preferably taper conically in the flow direction, at least on an inflow-side hole section. So that dirt particles can not penetrate into the mounting part 1 and there can lead to malfunctions, a front screen 17 is provided on the inflow side.

The jet decomposing device formed by the perforated plate 2 is a Strahlreguliereinrichtung 4 downstream in the flow direction. This jet regulating device 4 is intended to strongly decelerate the individual jets coming from the jet disintegrating device 2, divide it into further individual jets and, if necessary, favor an air mixing in order ultimately to achieve a sparkling-soft water jet. The Strahlreguliereinrichtung 4 has for this purpose two insertion parts 5a, 5b, which are spaced from each other in the built-in housing 6 can be used.

In FIG. 1 It can be seen that the built-in housing 6 is designed in two parts and two detachably latched together housing parts 7, 8 has. In this case, the inflow-side housing part 7 with the perforated plate 2 in one piece and thus both fixed and inextricably connected. These housing parts 7, 8 are detachably connected to one another in a parting plane oriented transversely to the inflow direction. Since a comparatively thin perforated plate 2 is securely and firmly connected to the housing part 7 at its peripheral edge, no significant functionally impairing deformation of the perforated plate 2 is to be expected even at hot water temperatures and high water pressures. Since the perforated plate 2 is held firmly and permanently on the inner wall of the housing and since there is no need for an annular flange as a support for the perforated plate, the jet regulator 1 can be designed with a relatively small housing diameter even at high flow rates, as in the prior art only was possible with jet regulators with low flow rate. Through the fixedly connected to the built-in housing 6 perforated plate 2, the built-in housing 6 undergoes a radial reinforcement, which makes the sleeve-shaped mounting housing 6 also a total breakage and dimensionally stable. Since the built-in housing consists of at least two detachably connectable housing parts 7, 8, nevertheless, the perforated plate 2 in the flow direction Downstream Strahlreguliereinrichtung 4 and optionally further required functional units are inserted into the built-in housing 6. The jet regulator 1 is therefore characterized by a high dimensional stability and at the same time low production costs. Since the jet regulator 1 can be designed with a comparatively small housing diameter even at high flow rates, it is also possible to use the same built-in housing 6 for different flow rate classes. If different flow rates require a corresponding adaptation of the jet regulator 1, this is possible by exchanging the jet regulating devices downstream of the perforated plate 2 and similar functional units.

In FIG. 1 can be seen that the downstream housing part 8 is designed sleeve-shaped and that in this housing part 8, the insertion parts 5a, 5b of the Strahlreguliereinrichtung 4 can be used up to a plug-in stopper 9. From a comparison of FIGS. 2 to 8 and in particular from the FIGS. 4 and 7 It is clear that the insertion parts 5a, 5b each have at crossing nodes 10 crossing webs 11, wherein the passage openings 12 of one of these inserts the junction nodes 10 of the adjacent insert part 5b are downstream in the flow direction, while the passage openings 12 of the outflow side insert part 5b, the crossing nodes 10th the adjacent inflow-side insertion part 5a are connected upstream in the flow direction.

The water jet flowing to the installation part 1 designed as a jet regulator is split into a plurality of individual jets at each crossing node 10 of the inflow-side insertion part 5a. These individual jets are again divided into a plurality of further individual jets at the junction node 10 of the downstream part 5b. The Strahlreguliereinrichtung 4 of the jet regulator 1 is characterized by the cascaded junction points 10 their insertion parts 5a, 5b by a particularly effective deceleration of the incoming water jet even on the smallest cross-sectional area.

The Strahlreguliereinrichtung 4 of the jet regulator 1 shown here is modular; the Strahlreguliereinrichtung 4 are assigned a plurality of optionally combinable with each other insert parts 5. So have the in the Figures 2 and 3 illustrated insertion parts 5a and 5b grid-shaped webs 11. The lattice structures of these insertion parts 5a, 5b are arranged offset by about 45 ° to each other, wherein the in FIG. 3 shown insertion part 5b compared to the insertion part 5a FIG. 2 has a smaller grid spacing. By Lageorientierungsein- or -ausformungen 13 at the outer peripheral edge of the insertion parts 5a, 5b, which cooperate with longitudinally oriented, complementarily shaped Lageorientierungsaus- or -einformungen on the housing inner circumference of the housing part 8, is always a positional arrangement of the insertion 5 to each other in the mounting housing. 6 guaranteed.

While that in FIG. 5 shown inflow-side insertion part 5c has a bevy of radial webs 11 ', which intersect at the intersection node with a crowd concentric and annular circumferential ridges 11 ", has the in FIG. 6 shown outlet-side insertion parts 5d star-shaped or net-like crossing webs 11. The webs 11 of each plate-shaped designed insertion part 5 are arranged in a direction transverse to the flow direction plane.

In FIG. 1 it can be seen that the Strahlreguliereinrichtung 4 at the outlet end of the mounting housing 6, a flow straightener 14 is connected downstream. From a comparison of Figures 9 and 10 It is clear that this flow rectifier 14, in which the opening width of the passage openings 15 is smaller than the height in the flow direction, for example, honeycomb ( Fig. 9 ) or circular segment ( Fig. 10 ) Passage openings 15 may have.

In the Figures 11 and 12 are shown here serving as a flow straightener inserts having a grid-shaped metal mesh.

In FIG. 13 it is shown that the Strahlreguliereinrichtung 4 can also have two adjacent insertion parts 5a, 5b, the webs 11 and crossing nodes 10 are aligned with each other. It will be off FIG. 13 clearly that the insertion parts 5a, 5b of such a Strahlreguliereinrichtung 4 can also be configured identical, whereby the manufacturing cost can be further reduced. Just like in the FIGS. 4 and 8th , is also in FIG. 13 indicated by circles executed in bold that the flow openings of the perforated plate 2 with the crossing nodes 10 at least one, downstream in the flow direction insert part. By the in FIG. 13 in bold circles, the impact point of the individual beams coming from the jet disintegrating device 2 is illustrated at the crossing node 10 of the insertion part 5a.

In FIG. 14 is a, located in an outlet mouthpiece 21 jet regulator 1 is shown, the sleeve-shaped outer housing consists of two releasably latched together housing parts 7, 8. In this case, the inflow-side housing part 7 with the perforated plate 2 in one piece and thus both fixed and inextricably connected. While the inflow-side housing part 7 consists of a comparatively strong plastic material, the outlet side Housing part 8 made of an elastic material and has a soft and water-repellent surface. Since the housing part 8 thus also in the region of its water outlet opening and thus in the region of the flow rectifier 14 provided there has a water-repellent surface, which is characterized in FIG. 14 shown jet controller by the calcification of the outlet side flow rectifier 14. Since the outlet-side housing part 8 is made of rubber, silicone or a thermoplastic elastomer and thus has an elastic and soft surface, calcifications or dirt particles deposited on the flow rectifier 14 in particular can easily be removed manually. In order to additionally facilitate the manual cleaning of the jet regulator 1, it can be advantageous if the jet regulator 1 protrudes at least slightly beyond the outlet mouthpiece 21 with an outlet-side partial region.

How out FIG. 14 becomes clear, the inflow-side housing part 7 and the outlet-side housing part 8 are releasably held together by a latching connection. In order to prevent that the outlet-side housing part 8 can be pulled off axially from the inflow-side housing part 7, the support shoulders, on which both housing parts 7, 8 touch, are designed so that sufficiently large forces can be absorbed. In addition, the outlet-side housing part 8 is stiffened by radial longitudinal webs 22, which are arranged distributed uniformly in the region of the flow rectifier 14 and thus in the region of the outlet opening in the circumferential direction. By provided on the rubber-elastic housing part 8 longitudinal webs 22, which create very close to the inner contour of the outlet nozzle 21, it is prevented that the rubber-elastic housing part 8 expand and thus can be deducted from the housing part 7. In any case, the axial forces created by the water pressure on the elastic housing part 8 comparatively low, since the water pressure at the serving as jet disintegrating device 2 perforated plate in the housing part 7 is already almost completely degraded.

In FIG. 14 can be seen that the outlet-side housing part 8 in the region of the water outlet opening has a constriction 23, which causes a constriction of the flow cross-section. Through this narrowing of the flow cross-section, a calibration of the outflowing water jet and a homogenization of the jet pattern is achieved. The constriction 23 is provided in the region of the water outlet opening and thus in a region downstream of possible interference contours in the flow direction. By calibrating the water jet, a homogeneous and non-squirting spray pattern is significantly favored.

Claims (24)

1. Jet regulator (1) which comprises, inside an installation housing (6), a flow disintegrating device embodied as a perforated plate, downstream of which is provided, on the outflow side, a jet regulating device (4) which has at least two inserts that can be Inserted in the installation housing (6), which comprise bars oriented transversely of the direction of throughflow that define throughflow openings between them, characterised in that the installation housing (6) is subdivided into at least two housing parts (7, 8) which are connectable to one another in a plane of separation oriented transversely of the direction of inflow, in that a housing part (7) on the inflow side is fixedly and non-releasably connected to the flow disintegrating device (2), in that a housing part (8) on the outflow side is of sleeve-shaped configuration and the at least two inserts (5) of the jet regulating device (4) can be inserted in this housing part (8), in that the at least two inserts (5) can be inserted in the housing part (8) associated with the jet regulating device, from the inflow side as far as an insertion stop (9) or an abutment, and in that the bars of the at least two adjacent inserts are arranged in a grid or network, intersecting at intersection nodes.
2. Jet regulator according to claim 1, characterised in that the housing parts (7, 8) of the installation housing (6) are releasably latchable to one another.
3. Jet regulator according to claim 1 or 2, characterised in that the jet regulating device (4) of the jet regulator (1) is of modular construction and a plurality of inserts (5a, 5b, 5c, 5d, 5e) that can be selectively combined with one another are associated therewith.
4. Jet regulator according to one of claims 1 to 3, characterised in that at least one insert (5) of the jet regulating device (4) is arranged relative to the flow disintegrating device such that the individual streams produced in the flow disintegrating device meet at intersection nodes (10) of the at least one insert (5).
5. Jet regulator according to one of claims 1 to 4, characterised in that the bars (11) and the intersection nodes (10) of the at least two adjacent inserts (5a, 5b) are aligned with one another.
6. Jet regulator according to one of claims 1 to 5, characterised in that at least two inserts (5a, 5b) are of identical construction.
7. Jet regulator according to one of claims 1 to 4 or 6, characterised in that downstream of the throughflow openings (12) of one of these inserts (5a, 5c) in the direction of flow are provided the intersection nodes (10) of the adjacent insert (5b, 5e).
8. Jet regulator according to one of claims 1 to 7, characterised in that at least one insert (5) on the inflow side and/or on the outflow side is or are arranged in a plane preferably oriented at right-angles to the direction of throughflow.
9. Jet regulator according to one of claims 1 to 8, characterised in that at least one insert (5a, 5b) on the inflow and/or outflow side Is of grid-like configuration and comprises two intersecting sets of parallel grid bars.
10. Jet regulator according to one of claims 1 to 9, characterised in that an insert (5c) on the inflow and/or outflow side has a set of radial bars (11') that intersect at the intersection nodes with a set of concentric bars (11") arranged in an annular configuration.
11. Jet regulator according to one of claims 1 to 10, characterised in that an insert (5d) on the inflow and/or outflow side has bars (11) arranged in a star shape or network.
12. Jet regulator according to one of claims 1 to 11, characterised in that the inserts (5) are of plate-like configuration.
13. Jet regulator according to one of claims 1 to 12, characterised in that downstream of the jet regulating device (4) on the outflow side is arranged a flow rectifier (14) that comprises throughflow openings (15) the width of opening of which is less than their height in the direction of throughflow.
14. Jet regulator according to claim 13, characterised in that the flow rectifier (14) is arranged at the exit end of the installation housing (6).
15. Jet regulator according to claim 13 or 14, characterised in that the flow rectifier (14) is connected in one piece to the installation housing (6) or can be inserted as a separate insert into the Installation housing (6).
16. Jet regulator according to one of claims 13 to 15, characterised in that the flow rectifier (14) has throughflow openings (15) that are rectangular, segment-shaped or honeycomb-shaped.
17. Jet regulator according to one of claims 13 to 16, characterised in that the jet regulating device and/or the flow rectifier (14) comprise at least one metal sieve.
18. Jet regulator according to one of claims 1 to 17, characterised in that the housing part (8) on the outflow side comprises a soft and/or water-repellent surface, at least in the region of the water outlet opening.
19. Jet regulator according to one of claims 1 to 18, characterised in that the housing part (8) on the outflow side is made of an elastic material, at least in the region of the water outlet opening.
20. Jet regulator according to one of claims 1 to 19, characterised in that the housing part (8) on the outflow side is made substantially from an elastic material and/or a material with a soft or water-repellent surface.
21. Jet regulator according to one of claims 1 to 20, characterised in that the housing part (8) on the outflow side is reinforced by longitudinal struts (22) that are preferably uniformly distributed in the circumferential direction.
22. Jet regulator according to claim 21, characterised In that the longitudinal struts (22) are provided at least in the region of the water outlet opening.
23. Jet regulator according to one of claims 1 to 22, characterised in that the housing part (8) on the outflow side comprises, in the region of the water outlet opening, at least one constriction (23) or similar narrowing of its cross-section of throughflow.
24. Jet regulator according to one of claims 2 to 23, characterised in that the housing part (8) on the outflow side is connectable to the adjacent housing part (7) on the inflow side, preferably by means of a particular circumferential latching connection.

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