EP3009571A1 - Flow regulator - Google Patents

Abstract

The invention relates to a jet regulator (100) with a jet regulator housing (2), in the housing interior of which a perforated plate (5) with a plurality of flow holes (6) is provided for dividing the water flowing through. It is characteristic of the jet regulator according to the invention that at least one throughflow hole (6) widens conically or conically towards its downstream side, at least in an outflow-side hole section. Additionally or instead, it may also be provided that on the downstream side of the perforated plate (5) in the jet regulator housing (2) and / or on the Absrömstirnfläche the jet regulator housing (2) flow obstacles are provided, which are arranged or concentrated there in a central or central area and which divert the water flowing through into an outer annular zone. For the jet regulator (100) according to the invention, even at low flow rates and low water pressures, a ventilated and thus pearly-soft water jet can already be produced (compare FIG.

Description

The invention relates to a jet regulator with a jet regulator housing, in the housing interior of which a perforated plate having a plurality of flow holes for dividing the water flowing through is provided.

Jet regulator of the type mentioned are already known in various designs. Such jet regulators are mounted on the water outlet of a sanitary outlet fitting to produce a homogeneous and laterally non-splashing water jet there. It has also created aerator, which aerate the escaping water steel and mixing the water flowing through it with the ambient air.

So is out of the DE 30 00 799 A1 already a ventilated jet regulator previously known, which has in its jet regulator housing a perforated plate having a plurality of Durchflußlöchern, which are arranged in concentric hole circles on the perforated plate and which should divide the water flowing through the jet regulator housing into a corresponding number of individual beams. Since the flow holes the clear flow area in the range narrow the perforated plate, the water flowing through in the flow holes undergoes an increase in speed, which causes a negative pressure according to the Bernoulli equation on the downstream side of the perforated plate. By the negative pressure generated on the downstream side of the perforated plate ambient air is sucked in, which penetrate through openings provided in the housing ventilation openings in the housing interior of the jet regulator housing and mixed there with the water flowing through. Thus, the water flowing through the noise plate is divided into individual beams by means of the perforated plate, is in the off DE 30 00 799 A1 previously provided jet regulator, inter alia, provided that the flow holes have a polygonal cross-section hole portion, which is followed by a cross-section increasingly extended and downstream cylindrical portion of the hole (see FIG. 4 in DE 30 00 799 A1 ). Through such, different sections having flow holes in each of the flow holes a circular cross-section and linear outflowing single beam is generated.

From the EP 1 273 724 B1 (= DE 601 01 909 T2 ) is already known a jet regulator with a jet regulator housing, in the housing interior a perforated plate is provided which has flow holes, which have a constant clear cross-section in the flow direction. The perforated plate is followed by a baffle cone in the flow direction, which forms a constriction in the flow area of the previously known jet regulator. The individual beams generated in the perforated plate can tear the ambient air in the housing interior of the jet regulator housing with it and then hit on the inclined surface of the impact cone so that the ventilated individual jets are broken up and mixed with the entrained air.

However, the prior art jet regulators require a certain flow and sufficient water pressure in the pipeline network, so that sufficient negative pressure is generated on the downstream side of serving as a jet separator perforated plate to suck ambient air into the housing interior of the jet regulator housing. In contrast, the negative pressure formed at low flow and low water pressures is usually not sufficient to mix the ambient air with the water flowing through can.

It is therefore an object to provide a jet regulator of the type mentioned, which is also at low flow and / or low water pressures, as they are often sought, for example, for water saving purposes, able to produce a sufficiently ventilated and, accordingly, pearly soft water jet. In this case, the generation of a possible voluminous beam is sought, which does not differ visually and haptically from the usual state of the art for the user, the jet regulator according to the invention should preferably be interchangeable with the known jet regulator designs.

The solution to this problem in the jet regulator of the type mentioned in particular consists in the fact that at least one through-hole widens conically or conically towards its downstream side.

The jet regulator according to the invention has a jet regulator housing, in the housing interior of which a perforated plate extending, for example, over the housing cross-section is provided. The perforated plate has a plurality of flow holes, which are intended for dividing the water flowing through. At least one of the flow holes provided in the perforated plate expands toward its downstream side and preferably increasingly conical or conical up to the downstream side. As a result of the conical or conical spreading of the water emerging from the perforated plate, it can mix with the ambient air sucked into the jet regulator housing, even at low flow rates and low water pressures, practically over the entire housing cross section of the jet regulator housing.

In this case, the good air mixing of the water flowing through is favored even at low flow rates and low water pressures, if at least one flow hole to such a conical or conical widened to its downstream side, that emerging from the flow hole and by the conical shape or conicity widening single beam itself in the housing interior even before the impingement of individual jets on at least one arranged in the housing interior beam molding with the single beam at least one adjacent Durchflußloches mixed.

In addition to or instead of the conical or conical widening design of at least one Durchflußloches provides a further proposal according to the invention of own worthy of protection in the jet regulator of the type mentioned above, that on the downstream side of the perforated plate in the jet regulator housing and / or at the outflow end face of the jet regulator housing flow obstacles are provided, which are arranged or concentrated there in a central or central area and redirect the water flowing through into an outer annular zone, in contrast, has no or a smaller number or total area of flow obstacles. In order to create the jet regulator with a jet regulator housing, which corresponds in terms of compatibility reasons in its dimensions to the dimensions of commercially available jet regulators and yet still at low flow rates The flow of water through the flow obstacles from a central or central area at least partially deflected into an outer annular zone, which forms the outer circumference of the exiting water jet in the cross section comparable voluminous appearing water jet.

An advantageous embodiment according to the invention provides that on the downstream side of the perforated plate at a distance from this on the housing inner circumference a circumferential baffle slope is provided, which increasingly narrows the clear housing cross-section in this area in the flow direction. In this advantageous embodiment, the exiting from the flow holes and already enriched with air water meets at a distance to the perforated plate on a baffle, which additionally mixes and divides the already treated water before the thus enriched with air water as a homogeneous, non- spouting and pearly-soft water jet can escape from the jet regulator.

A particularly easy to manufacture embodiment according to the invention provides that the baffle slope forms the inflow side of a Wandungsabschnitts, which is configured as at least one wavy constriction in the longitudinal section.

In this case, the impact bevel can be designed as an inner peripheral side projection or inner peripheral side projection of the housing peripheral wall and can be integrally connected to the jet regulator housing or a jet regulator housing part.

However, an embodiment in which the baffle slope is preferred as a wall section of an annular or sleeve-shaped insertion part which can be inserted into the jet regulator housing is preferred is trained.

In order to use at least one beam molding in the housing interior of the jet regulator housing, even if the perforated plate serving as jet separator is integrally formed on the jet regulator housing, it is advantageous if the jet regulator housing is designed in several parts and has at least two, preferably releasably connectable housing parts.

In this case, particularly advantageous embodiments according to the invention, provide that the impact bevel is integrally formed on the housing inner circumference of a downstream housing part and / or that the perforated plate is integrally formed in the housing interior of an inflow-side housing part.

In addition to or preferably instead of a baffle slope, the perforated plate can be connected downstream of at least one mesh or lattice structure in the flow direction. The tapered or conically emerging from the flow holes and impinging on the at least one network or lattice water is braked there and decomposed with the adjacent disassembled portions of emerging from the adjacent flow holes water to then emerge as a soft overall beam from the jet regulator can.

Although such a lattice structure can also be formed by an inserted metal mesh, which is formed from two sets of preferably rectangularly interwoven metal wires, preference is given to an embodiment in which the mesh or lattice structure is formed by two sets of webs crossing each other at intersecting nodes. Such a network or lattice structure, which is formed from two flocks, at crossing nodes intersecting webs, can be produced in a simple manner as a plastic injection molded part. In this case, a preferred embodiment according to the invention provides that the at least one, the perforated plate in the flow direction downstream network structure of radial webs and thus crossing at crossing nodes concentric webs is formed.

In order to further promote the decomposition of the water coming from the perforated plate, it may be advantageous if the perforated plate is followed in the direction of flow by at least two spaced-apart mesh or grid structures.

In this case, a preferred development according to the invention provides that at least one flow hole in the flow direction is aligned with a radial web of a network structure and with a concentric web of an adjacent network structure.

The divided in the perforated plate water flows out of the flow holes of the perforated plate less than single jet and rather than spray cone. In order to further break up and divide the spray cones emerging from the flow holes, it is advantageous if the webs each aligned with a flow hole overlap or intersect in the flow direction of the at least one flow hole in the various planes of these mesh or grid structures.

In order to be able to produce the jet regulator according to the invention with comparatively little effort, for example, from individual plastic parts, it may be advantageous if each mesh or lattice structure is formed by an insertion part which can be inserted into the housing interior of the jet regulator housing.

In this case, a preferred embodiment provides that each insert part has on the outer peripheral side a circumferential annular wall, to which webs of the mesh or grid structure are held and preferably integrally formed.

The breaking up and dividing of the spray cone emerging from the throughflow holes of the perforated plate is further promoted if at least the concentric webs and preferably also the radial webs of a network structure in front in the direction of flow has an equal or smaller web thickness compared to the webs of a network structure adjacent downstream.

The flow holes provided in the perforated plate can be arranged on concentric hole circles. However, a preferred embodiment according to the invention provides that the perforated plate has a central hole-free baffle which bounds at least one annular wall, that the at least one annular wall has radially oriented passage openings, and that on the arranged in the baffle plane side of the flow openings in each case a Durchflußloch the perforated plate is provided. The deflected in this way in the region of the ring wall water is first braked, deflected to the side and mixed by optionally in opposite directions to each other inflowing streams before flowing through the through holes of the perforated plate and on the downstream side of the perforated plate in the form of a corresponding number of Sprühkegeln can escape.

To the in the housing interior of the jet regulator housing mixed with ambient air and correspondingly fluidized water on the outflow side of the jet regulator again to a homogeneous To form the overall jet and to be able to form the water emerging from the jet regulator in a downstream homogenizing to a non-squirting emerging water jet, it is useful if the downstream end face of the jet regulator housing is formed by a net or honeycomb cell structure, and if the downstream end surface forming Mesh or honeycomb cell structure either inextricably connected to the jet regulator housing and in particular integrally formed or formed by an insertable into the jet regulator housing insert.

The equalization of the exiting from the jet regulator overall jet is still favored when the downstream or the end face of the jet regulator housing forming net or honeycomb cell structure is formed by webs, which taper at least in a downstream partial region in the flow direction.

A preferred development according to the invention provides that the jet regulator according to the invention is designed as a ventilated jet regulator, in whose housing interior at least one ventilation opening opens, which connects the housing interior with the atmosphere. In order for the at least one ventilation opening to be able to connect the interior of the housing to the atmosphere, at least one ventilation channel can be provided in a double-walled section of the jet regulator housing or in an annular gap surrounding the jet regulator housing, which is designed to be open towards the atmosphere.

Further developments according to the invention will become apparent from the claims in conjunction with the figures and the description of the figures. Hereinafter, the present invention will be described in more detail with reference to preferred embodiments.

Fig. 1

einen, in einem perspektivischen Teil-Längsschnitt gezeigten Strahlregler, der am Außenumfang seines Strahlreglergehäuses ein Außengewinde trägt, mit dem der Strahlregler in ein Innengewinde am Wasserauslauf einer sanitären Auslaufarmatur lösbar eingeschraubt werden kann,

Fig. 2

den Strahlregler aus Figur 1 in einem Längsschnitt, wobei im Gehäuseinnenraum des Strahlreglergehäuses eine mit einem zuströmseitigen Gehäuseteil einstückig verbundene Lochplatte zu erkennen ist, die Durchflußlöcher trägt, welche sich zur Abströmseite der Lochplatte hin kegelförmig oder konisch erweitern,

Fig. 3

den Strahlregler aus Figur 1 und 2 in einem Längsschnitt durch Schnittebene III-III aus Figur 2, wobei durch die Durchflußlöcher der quergeschnittenen Lochplatte auch die der Lochplatte nachfolgenden Strukturen zu erkennen sind,

Fig. 4

eine Detailansicht der in Figur 3 gezeigten Querschnittsdarstellung im Bereich eines Durchflußloches der quergeschnittenen Lochplatte,

Fig. 5

den Strahlregler aus Figur 1 bis 4 in einer auseinandergezogenen perspektivischen Einzelteildarstellung,

Fig. 6

einen, mit dem Strahlregler gemäß Figur 1 bis 5 vergleichbar ausgestalteten Strahlregler, wobei der in Figur 6 gezeigte Strahlregler mit Hilfe eines hier nicht weiter gezeigten Auslaufmundstücks am Wasserauslauf einer sanitären Auslaufarmatur montierbar ist und wobei die abströmseitige Stirnfläche des in Figur 6 gezeigten Strahlreglers durch ein in das Strahlreglergehäuse einsetzbares Einsetzteil gebildet wird, welches eine Netzstruktur aufweist,

Fig. 7

die zuströmseitige Ansicht eines weiteren Strahlreglers, wobei diese zuströmseitige Ansicht vor allem ein dem Strahlregler zuströmseitig vorgeschaltetes Vorsatz- oder Filtersieb zeigt,

Fig. 8

den Strahlregler aus Figur 7 in einem Längsschnitt durch Schnittebene VIII-VIII aus Figur 7, wobei zu erkennen ist, dass der in Figur 8 gezeigte Strahlregler eine von der Abströmseite der Lochplatte beabstandete Prallschräge hat, die eine den lichten Durchflußquerschnitt des Strahlreglers in Strömungsrichtung verengende Einschnürung bildet,

Fig. 9

die Lochplatte des in Figur 7 und 8 gezeigten Strahlreglers in einem perspektivischen Teil-Längsschnitt,

Fig. 10

die abströmseitige Stirnfläche des in den Figuren 7 bis 9 gezeigten Strahlreglers in einer Unteransicht,

Fig. 11

den Stahlregler gemäß den Figuren 7 bis 10 in einer auseinandergezogenen perspektivischen Einzelteildarstellung,

Fig. 12

den Strahlregler aus den Figuren 7 bis 11 in einem vergrößerten Längsschnitt, wobei die Strömungsrichtung des den Strahlregler durchfließenden Wassers durch entsprechende Pfeile angedeutet ist, und

Fig. 13

die Lochplatte des in den Figuren 7 bis 12 gezeigten Strahlreglers in einem vergrößerten perspektivischen Teil-Längsschnitt.

It shows:

Fig. 1

a, shown in a perspective partial longitudinal section jet regulator, which carries on the outer circumference of its jet regulator housing an external thread with which the jet regulator can be detachably screwed into an internal thread at the water outlet of a sanitary outlet fitting,

Fig. 2

off the jet regulator FIG. 1 in a longitudinal section, wherein in the housing interior of the jet regulator housing a perforated plate integrally connected to an inflow-side housing part can be seen, which carries through-holes, which extend conically or conically towards the downstream side of the perforated plate,

Fig. 3

off the jet regulator FIGS. 1 and 2 in a longitudinal section through section plane III-III FIG. 2 in which the through-holes of the cross-cut perforated plate also show the structures following the perforated plate,

Fig. 4

a detailed view of in FIG. 3 shown cross-sectional view in the region of a flow hole of the cross-cut perforated plate,

Fig. 5

off the jet regulator Figure 1 to 4 in an exploded perspective detail view,

Fig. 6

one, with the jet regulator according to Figure 1 to 5 similarly designed jet regulator, wherein the in FIG. 6 shown jet regulator with the aid of an outlet nozzle not shown here at the water outlet of a sanitary outlet fitting is mounted and wherein the downstream end face of the in FIG. 6 shown jet regulator is formed by an insertable into the Strahlreglergehäuse insert part, which has a network structure,

Fig. 7

the inflow-side view of a further jet regulator, wherein this inflow-side view primarily shows an attachment or filter screen upstream of the jet regulator on the upstream side,

Fig. 8

off the jet regulator FIG. 7 in a longitudinal section through section plane VIII-VIII FIG. 7 , where it can be seen that the in FIG. 8 shown jet regulator has a spaced from the downstream side of the perforated plate baffle slope, which forms a narrow flow area of the jet regulator in the flow direction narrowing constriction,

Fig. 9

the perforated plate of in FIGS. 7 and 8 shown jet regulator in a perspective partial longitudinal section,

Fig. 10

the downstream end face of the in the FIGS. 7 to 9 shown jet controller in a bottom view,

Fig. 11

the steel regulator according to FIGS. 7 to 10 in an exploded perspective detail view,

Fig. 12

the jet regulator from the FIGS. 7 to 11 in an enlarged longitudinal section, wherein the flow direction of the jet regulator flowing through the water is indicated by corresponding arrows, and

Fig. 13

the perforated plate in the FIGS. 7 to 12 shown beam regulator in an enlarged perspective partial longitudinal section.

In the FIGS. 1 to 13 three embodiments 1, 10, 100 of a jet regulator are shown. The jet regulator designs 1, 10, 100 are intended to be mounted on the water outlet of a sanitary outlet fitting in order to form a homogeneous and laterally non-splashing water jet there. In order to allow the jet of water to emerge as a pearly-soft water jet, the jet regulator designs 1, 10, 100 are designed as aerated jet regulators, in which the water flowing through is mixed with ambient air and enriched.

The jet regulator embodiments 1, 10, 100 have a sleeve-shaped and in cross section round jet regulator housing 2. The in the FIGS. 1 to 5 shown Strahlreglerausführung 1 has on the housing outer circumference of the jet regulator housing 2 on an external thread 3, which cooperates with an internal thread, which is arranged on the inner peripheral side at the water outlet of the outlet fitting not shown here. In this case, the jet regulator embodiment 1 illustrated here can be screwed into the water outlet in such a way that the downstream end face of the jet regulator housing 2 is arranged practically in one plane with the downstream end edge of the outlet fitting.

In contrast, those in the FIGS. 6 to 13 shown with a sleeve-shaped outlet nozzle not shown here to assemble the water outlet of the outlet fitting, after the jet regulator 10, 100 was inserted from the inflow-side sleeve opening of the outlet mouthpiece in the sleeve interior to an annular shoulder 4 on the outer circumference of the jet regulator housing 2 to a in the outlet nozzle inner peripheral side bearing rests.

In the housing interior of the jet regulators 1, 10, 100, a perforated plate 5 is provided, which carries a plurality of Durchflußlöchern 6. At least one through-hole 6 and preferably all through-holes 6 of the perforated plate 5 extend conically or conically at least in an outflow-side partial region to their downstream side. The provided in the perforated plate 5 through holes 6 are intended for dividing the water flowing through. Due to the conical or conical spreading of the water emerging from the perforated plate, it can mix with the ambient air sucked into the jet regulator housing, even at low flow rates and low water pressures practically over the entire cross section of the jet regulator housing 2.

The flow holes 6 extend conically or conically in such a way that the water jet emerging from the flow holes 6 and widening due to the conical shape or conicity becomes at least one adjacent one in the interior of the housing prior to the impact of individual jets on at least one beam molding arranged in the interior of the housing Durchflußloches mixed.

In order to divide the water flowing through even more and to mix with ambient air, is in the in the FIGS. 1 to 6 shown aerator embodiments 1, 10 of the perforated plate 2 in the flow direction downstream of at least one and preferably at least two network structures, which are formed of radial webs 7 and thus crossing nodes 8 concentric webs 9.

In the FIGS. 3 and 4 By way of example, it can be seen that at least one flow hole 6 and preferably all flow holes 6 are aligned in the flow direction with a radial web 7 of a network structure and here the network structure connected downstream in the flow direction and with a concentric web 9 of an adjacent network structure arranged on the inflow side. The respectively aligned with one of the flow holes 6 webs 7, 9 cover or intersect here in a central or central region of the associated Durchflußloches 6 in the different levels of these network structures.

From a comparison of Figures 2 . 5 and 6 It is clear that each of the network structures forming a jet regulator device is formed by an insertion part 11, 12 which can be inserted into the housing interior of the jet regulator housing 2. Each of these insert parts 11, 12 has on the outer peripheral side a peripheral annular wall 13, to which the radial webs 7 of the network structure crossing with the concentric webs 9 are connected and integrally formed here.

In FIG. 4 It can be seen particularly clearly that at least the concentric webs 9 and preferably also the radial webs 7 of a network structure in front in the direction of flow have a greater web thickness in comparison to the webs 9, 7 of a network structure adjacent downstream. In this way, each flow hole 6 appears split in the perforated plate 5 in the flow direction in a plurality of further smaller flow openings.

From a comparison of Figures 2 . 5 . 6 . 8 and 9 It can be seen that the perforated plates 2 provided in the jet regulator embodiments 1, 10, 100 have a central baffle surface 14 which is delimited by at least one annular wall 15. This annular wall 15 has oriented in the radial direction through openings 16, which are spaced apart here over the circumference of the annular wall 15 from each other. On the bottom side and thus on the arranged in the baffle plane side of the passage openings 16 each one of the through holes 6 of the perforated plate 2 is provided. By this deflection of the inflowing water in the region of the flow holes 6, the water is braked, deflected to the side and optionally mixed by, in opposite directions to each other inflowing streams to then experience as a result of constriction of the flow in the flow holes 6 again an increase in speed. According to the Bernoulli equation, a vacuum is generated by this speed increase on the outflow side of the perforated plate 5, by means of which ambient air can be sucked into the housing interior of the jet regulator housing 2. In the housing peripheral wall of the jet regulator housing 2, at least one ventilation opening 17 which opens out on the outflow side of the perforated plate 5 in the interior of the housing is provided for this purpose. Beyond the central baffle surface 14, at least one further baffle surface 29, which circulates on the outside, may be provided, which is preferably arranged in the plane of the central baffle surface 14.

While the at least one ventilation opening 17 at the in Figure 1 to 5 shown jet regulator design 1 here via a double-walled portion 18 of the housing peripheral wall is connected to the downstream side of the jet regulator 1 with the atmosphere, prevail in the in the FIGS. 6 to 13 shown aerator housing 2 in the radial direction and are connected to the outside of the jet regulator housing 2 with a ventilation channel, which is formed as an annular gap between the housing outer periphery of the jet regulator housing 2 and the inner circumference of the outlet nozzle and the downstream end of outlet nozzle and jet regulators 10, 100 open to the atmosphere.

Instead of the insert parts 11, 12, the in FIGS. 7 to 13 shown jet regulator design 100 on the downstream side of the perforated plate 2 at a distance from this on the housing inner circumference a circumferential baffle slope 19, which increasingly narrows the clear housing cross-section in this area in the flow direction. This baffle slope 19 is formed by the inflow side of a wall section designed as a wavy constriction in longitudinal section. The wall portion having the baffle slope 19 is configured here as a ring-shaped or sleeve-shaped insertion part 20 which can be inserted into the jet regulator housing 2.

From a comparison of FIGS. 6 and 11 on the one hand and the FIG. 5 On the other hand, it is clear that the downstream end face of the jet regulators 1, 10, 100 is formed by a mesh structure 22 or a honeycomb cell structure 21. While the network or honeycomb cell structure 22, 21 forming the outflow-side end face of the jet regulators 1, 100 is permanently connected to the jet regulator housing 2, the outlet structure 22 of the in FIG. 6 shown jet regulator 10 formed by an insertable into the jet regulator housing 2 insert 23. From a comparison of FIGS. 8 and 10 can be seen that the the downstream face of the Beam regulator 100 forming net structure 22 by radial and concentric webs 24, 25 is formed, which taper at least in an outflow-side portion in the flow direction. Since these webs 24, 25 taper in the flow direction at least in a downstream part, homogenization and equalization of the water emerging from the jet regulator housing 2 by the network structure is additionally promoted in the form of a homogeneous overall jet.

In the Figures 10 and 11 It is clear that 2 flow obstacles can be provided on the downstream side of the perforated plate in the jet regulator housing and / or - as here - at the Abströmstirnfläche the jet regulator housing, which are arranged or concentrated there in a central or central area and the water flowing through into an outer annular zone deflect, which in contrast has no or a smaller number or total area of flow obstacles. In the in the Figures 10 and 11 As shown in FIG. 2, these flow obstacles are formed by the concentric webs 25, which are concentrated at the outflow end face of the jet regulator housing 2 to a central or central area, while an outer ring zone is free from such concentric webs.

In the Figures 5 . 6 and 11 It is clear that the jet regulator housing 2 is formed here by two housing parts 26, 27 which can be detachably connected to one another and are preferably latchable with one another, of which the front housing part 26 on the inflow side is integrally connected to the perforated plate 6. So that the dirt particles possibly entrained in the water can not impair the proper function of the jet regulator, the jet regulator housing 2 is preceded by an attachment or filter screen 28 which is detachable on the inflow side Housing part 26 is held. This attachment or filter screen 28 has a multiplicity of round or rectangular, in particular hexagonal, filter or sieve openings.

LIST OF REFERENCE NUMBERS

1

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

2

Flow regulator housing

3

external thread

4

annular shoulder

5

perforated plate

6

Flow holes (in the perforated plate 5)

7

(radial) webs

8th

intersection node

9

(concentric) webs

10

Jet regulator (acc FIG. 6 )

11

(upstream) insert part

12

(downstream) insert part

13

Ring wall (on the inserts 11, 12)

14

Baffle (centrally on the perforated plate 5)

15

Ring wall (on the inflow side on the perforated plate 5)

16

Passage openings (in the annular wall 15)

17

Ventilation opening (in the jet regulator housing 2)

18

(double-walled) section (the housing peripheral wall)

19

impact slope

20

Insertion part (with baffle slope 19)

21

Honeycomb cell structure (as a downstream face of the jet regulator)

22

Net structure (as the downstream face of the jet regulator)

23

Insert (as a downstream end face of the steel regulator 10)

24

(radial) webs (the downstream end face of the jet regulator 100)

25

(concentric) webs (at the downstream end face of the jet regulator 100)

26

(upstream) housing part

27

(downstream) housing part

28

Attachment or filter screen

29

(outside circumferential) baffle (the perforated plate 5)

100

Jet regulator (according to the FIGS. 7 to 13 )

Claims (21)

Jet regulator (1, 10, 100) with a jet regulator housing (2), in the housing interior of a perforated plate (5) is provided with a plurality of flow holes (6) for dividing the water flowing through, characterized in that at least one flow hole (6) itself widened conically or conically at least in an outflow-side hole portion to its downstream side. Jet regulator according to claim 1, characterized in that at least one flow hole (6) widens conically or conically at least in a downstream-side hole portion to its downstream side so that the single jet emerging from the flow hole (6) and widened by the conical shape or taper or spray jet in the interior of the housing, preferably before the impingement of individual jets on at least one arranged in the housing interior beam molding with the single steel at least one adjacent flow hole (6) mixed. Jet regulator (100) according to the preamble of claim 1, in particular according to claim 1 or 2, characterized in that flow obstacles are provided on the downstream side of the perforated plate (5) in the jet regulator housing (2) and / or on the Abströmstirnfläche the jet regulator housing (2) which are arranged or concentrated there in a central or central area and divert the water flowing through into an outer annular zone. Jet regulator according to one of claims 1 to 3, characterized in that on the downstream side of the perforated plate (5) at a distance from this a circumferential baffle slope (19) is provided, which increasingly narrows the clear housing cross-section in this area in the flow direction. Jet regulator according to claim 4, characterized in that the baffle slope (19) forms the inflow side of a Wandungsabschnitts, which is formed as at least one wavy constriction in longitudinal section. Flow regulator according to one of claims 1 to 5, characterized in that the jet regulator housing (2) is designed in several parts and has at least two, preferably releasably connectable housing parts (26, 27). Jet regulator according to one of claims 4 to 6, characterized in that the baffle slopes (19) on the housing inner circumference of a downstream housing part (27) is integrally formed and / or that the perforated plate (5) in the housing interior of an inflow-side housing part (26) is integrally formed , Jet regulator according to one of claims 1 to 7, characterized in that the perforated plate (5) in the flow direction at least one network or grid structure is connected downstream. Jet regulator according to claim 8, characterized in that the network or lattice structure of two shares, at crossing nodes (8) intersecting webs (7, 9) is formed. Jet regulator according to claim 9, characterized in that the network structure of radial webs (7) and thus at crossing nodes (8) crossing concentric webs (9) is formed. Jet regulator according to one of claims 8 to 10, characterized in that the perforated plate (5) in the flow direction at least two spaced network or grid structures are connected downstream. Jet regulator according to claim 10 or 11, characterized in that at least one flow hole (6) in the flow direction with a radial web (7) of a network structure and with a concentric web (9) of an adjacent network structure is aligned. Jet regulator according to one of claims 10 to 12, characterized in that each with a flow hole (6) aligned webs (7, 8) overlap or intersect in the flow direction of the at least one Durchflußloches (6) in the different levels of these network structures. Jet regulator according to one of claims 10 to 13, characterized in that each network structure is formed by an insertable part (11, 12) insertable into the housing interior of the jet regulator housing (2). Jet regulator according to one of claims 9 to 14, characterized in that each insert part (11, 12) on the outer peripheral side has a circumferential annular wall (13) to which webs (7) of the mesh or grid structure connected and preferably integrally formed. Jet regulator according to one of claims 10 to 15, characterized in that at least the concentric webs (9) and preferably also the radial webs (7) of a front in the flow direction network structure in comparison to the webs (7, 9) downstream in the flow direction adjacent network structure have an equal or smaller web thickness. Flow regulator according to one of claims 1 to 16, characterized in that the perforated plate (5) has a central hole-free baffle surface (14) which delimits at least one annular wall (15), that the annular wall (15) oriented in the radial direction through openings (16). and in that a throughflow hole (6) of the perforated plate (5) is provided on the side of the passage openings (16) arranged in the baffle plane. Jet regulator according to claim 17, characterized in that the annular wall (15) is bounded on the outer peripheral side by a preferably annular circumferential baffle surface (29). Jet regulator according to one of claims 1 to 18, characterized in that the outflow-side end face of the jet regulator housing (2) by a mesh or a honeycomb cell structure (21; 22) is formed and that the outgoing end face forming net or honeycomb cell structure (21; ) either inseparably connected to the jet regulator housing (2) and, in particular, integrally formed or formed by an insert (23) which can be inserted into the jet regulator housing (2). Flow regulator according to claim 19, characterized in that the the downstream end face of the jet regulator housing (2) forming net or honeycomb cell structure (21; 22) by webs (24, 25) is formed, which taper at least in an outflow-side portion in the flow direction. Jet regulator according to one of claims 1 to 20, characterized in that the jet regulator (1, 10, 100) is designed as a ventilated jet regulator, which has at least one ventilation opening (17), which opens on the outflow side of the perforated plate (5) in the housing interior and which connects the housing interior with the atmosphere.

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