EP3350379B1 - Aerated jet regulator having a flow rectifier in the form of a network structure - Google Patents

Description

The invention relates to a jet regulator with a jet regulator housing, in the housing interior of which a flow straightener is provided, which has at least a first insert part which can be inserted into the housing interior and which insert part has a network structure which is formed from a group of radially oriented webs which are located at intersection nodes or Cross or touch points of contact with a group of concentrically circumferential webs, and with at least one ventilation opening which penetrates a housing peripheral wall of the jet regulator.

Various jet regulators have already been created, which can be mounted on the water outlet of a sanitary outlet fitting in order to shape the water emerging from the outlet fitting into a homogeneous, non-splashing water jet. A distinction is made between non-ventilated and ventilated jet regulator versions. In ventilated jet regulators, the water flowing through in the regulator housing of the jet regulator is mixed with ambient air in order to let the water emerge as a sparkling, soft water jet.

Such aerated jet regulators have a jet splitter in their jet regulator housing, which divides the incoming water into a large number of individual jets. These individual jets experience a speed increase in the jet splitter, so that a vacuum is created on the downstream side of the jet splitter according to the Bernoulli equation. In the peripheral wall of the jet regulator housing, ventilation openings are provided on the outflow side of the jet splitter, which openings penetrate the peripheral wall. The negative pressure that arises on the downstream side of the jet separator sucks in the ambient air, which enters the interior of the jet regulator housing through the ventilation openings and mixes there with the individual jets, before the individual jets mixed with air in this way are formed in a flow straightener into an aerated overall jet.

This flow straightener usually consists of at least two insert parts that can be used in the interior of the jet regulator housing. These insert parts each have a lattice or a network structure, which initially further divides the ventilated individual jets flowing through. However, the lattice-shaped or net-shaped insert parts forming the flow straightener also represent an obstacle to flow, in front of which the water flowing through can build up. In some cases, undesirable noises occur. These disturbing noises, which can be perceived as slurping or humming noises, are caused by the intermittent build-up of a water film in the ventilation openings, which are briefly sealed off by this water film. Due to the negative pressure on the outflow side of the jet splitter in the area of the ventilation openings, this water film collapses again immediately after it is built up and is sucked into the flow area of the jet regulator. The constant high-frequency build-up and breakdown of the water film leads to the said flow or noise. The insert parts of the flow straightener, which at the same time form a flow obstacle, lead to a flow backflow at the outer connection of the grid or network structure in the area of the outer retaining ring. A kind of "hill" forms there, which builds up the water to the ventilation openings. When the water film is built up and taken down in the interior of the housing in front of the ventilation openings, small amounts of water regularly escape from the ventilation openings in the form of aerosol or spray water. This escaping water can lead to increased limescale formation and to external contamination of the jet regulator or the outlet mouthpiece receiving the jet regulator.

So you know from the CN 201 969 506 U and the DE 10 2010 012 326 A1 already jet regulators of the type mentioned at the outset, which have a jet regulator housing, in the housing interior of which a flow straightener is provided which has at least one first insert part which can be inserted into the housing interior. This insert part has a network structure which is formed from a family of radially oriented webs which cross or touch each other at intersection nodes or points of contact with a family of concentrically circumferential webs. The network structure of the at least one insert part provided in the known jet regulators is encompassed by an external retaining ring, on which webs which are radially oriented on the outer circumference are formed, the free web end of which protrudes beyond the outer circumferential retaining ring and serves as a rotation locking projection. These webs projecting on the outer circumference of the retaining ring project into an assigned anti-rotation groove on the inner circumference of the jet regulator housing such that the retaining ring of each insert part rests against the inner circumference of the jet regulator housing. In the cross-sectional plane of the jet regulator housing located between the first insert part in the flow direction and an inflow-side perforated plate, ventilation openings are provided which penetrate the housing peripheral wall and are arranged at uniform intervals from one another distributed over the housing periphery.

From the FR 2 562 202 A1 a jet regulator with a jet regulator housing is already known, which has a centrally arranged spherical deflecting body in its interior. The inflowing water is deflected laterally outwards by this centrally arranged deflecting body, from where the water flow is directed past ventilation openings to a radial insert, which is to shape the water flowing through and now mixed with ambient air into a homogeneously flowing water jet. The insert part of the known jet regulator is formed by a network structure, which consists of a group of radially oriented Bridges are formed, which intersect with a group of concentrically rotating webs at intersection nodes. The radially oriented webs of this network structure protrude beyond the outer circumferential web of the network structure in such a way that their free web ends rest against the inside circumference of the jet regulator housing.

As has already been explained above, the lattice-shaped or network-shaped insert parts which form the flow straightener of the known jet regulators also represent an obstacle to flow in front of which the water flowing through them can build up. The constant high-frequency build-up and breakdown of a water film leads to the flow or disturbing noises described above and to a flow backflow in the area of the outer web ends of the radial webs of the network structure.

There is therefore in particular the task of creating a jet regulator in which such flow noises or additional limescale formation or contamination in the outer peripheral region of the regulator housing of the jet regulator is avoided.

The solution to this problem according to the invention in the jet regulator of the type mentioned at the outset is, in particular, that radially oriented webs have free web ends which protrude beyond the outer circumferential web of the network structure and end at a distance from the inner circumference of the jet regulator housing, that at the first insert part between the free web ends At least one web-free drain opening is provided in its radially oriented webs and the inner circumference of the jet regulator housing, and that the at least one drain opening is arranged in the flow direction below the at least one ventilation opening.

The jet regulator according to the invention has a jet regulator housing, in the housing interior of which a flow straightener is provided. This flow straightener has the dated Jet regulator coming and then mixed with ambient air mixed again and to form a homogeneously emerging water jet. For this purpose, the flow straightener has at least a first insert part which can be inserted into the interior of the housing and which has a network structure which is formed from a family of radially oriented webs which intersect at intersection nodes or touch one another at a point of contact with a family of concentrically rotating webs. The water flowing through the interior of the housing is guided through this spider web-like structure, the water being guided on the web walls of the web structure extending in the flow direction and being formed into a homogeneously emerging, non-splashing water jet. The network structure of the at least one first insert part of the flow straightener has radially oriented webs, the free web ends of which point outwards and protrude beyond the outer, annular web of the network structure and end at a distance from the inner circumference of the jet regulator housing such that at least one between these free web ends and the inner circumference of the housing Drainage opening remains, which is arranged in the flow direction below the at least one ventilation opening and prevents the water flowing through from accumulating in front of the flow straightener, in particular in the region of ventilation openings, which is associated with undesirable noise generation.

The flow straightener of the jet regulator according to the invention can optionally also have a plurality of insert parts of identical construction. However, an embodiment is preferred in which the flow straightener has at least two, preferably differently designed insert parts, the flow rectifier additionally having at least one second insert part which can be used in the interior of the jet regulator housing in addition to the at least one first insert part.

So that the at least one insert part following the first insert part in the flow direction can also contribute to calming and evening out the water flowing through, it is advantageous if the at least one second insert part is connected downstream of the at least one first insert part in the flow direction and has a grid or network structure has bridges crossing each other at intersection nodes or touching at points of contact.

In order to design the outlet openings kept free between the free web ends of the radial webs provided on the first insert part and the inner circumference of the housing with the largest possible free opening cross-section, it is expedient if the at least one first insert part is designed free of retaining rings and if the free web ends in the plane of the network structure determine the outer contour or the outer circumference of the first insert.

In contrast, it can be advantageous if the at least one second insert part has a circumferential outer retaining ring, which retaining ring delimits the lattice or network structure of this insert part.

It is expedient if the grating or network structure acts on the inner circumference of the retaining ring of the at least one second insert part.

A preferred embodiment according to the invention provides that an anti-rotation device is provided at least between the first insert part and the inner circumference of the housing.

In order to always provide the drain openings provided in the lattice or network structure of at least the first insert part in front of the ventilation openings, it is advantageous if at least the first insert part can be inserted in the circumferential direction in the housing interior in a rotationally secured manner.

In order to be able to mix the water flowing through the jet regulator according to the invention with ambient air and to always have sufficient ambient air in the interior of the jet regulator housing, it is advantageous if the jet regulator has a jet splitter which is connected upstream of the flow straightener, and if on the inside of the housing in one the at least one ventilation opening is arranged between the flow straightener and the jet separator. The jet splitter can be designed, for example, as a perforated plate which has flow holes arranged in concentric circles, for example. However, it is also possible for this jet splitter to be cup-shaped, the bottom of the pot forming a baffle surface and flow holes spaced apart from one another in the circumferential direction in which the inflowing water is divided into the required individual jets.

In order to provide a division of the water flowing through also in the area of the drain openings provided at least in the first insert part, it is advantageous if webs are held on the retaining ring of the second insert part on the inner circumference side, which are oriented in the longitudinal direction of the jet regulator in an extension of the radial and preferably in the direction of a ventilation opening Bridges are arranged on the first insert.

A preferred embodiment according to the invention provides that the webs provided on the retaining ring of the second insert part on the inner circumference side, which are arranged in an extension of the radially oriented webs on the first insert part, are designed as web stubs, the stub ends of which extend approximately to the free web end of those on the first Insert part associated webs is sufficient.

Since the flow straightener and the webs of its at least one insert part form flow obstacles at which the inflowing water is at least partially thrown back there is a risk that water thrown back in this way will escape through the ventilation openings of the jet regulator and impair the function of the jet regulator. A preferred embodiment according to the invention therefore provides that a splash guard ring is provided, which is arranged inside the jet regulator housing between the at least one ventilation opening and the flow straightener. This splash guard ring keeps the water drops thrown back by the flow straightener and the webs of its at least one insert part away from the at least one ventilation opening in the jet regulator housing.

The proper functioning of this splash guard ring and the correct position of the splash guard ring in the interior of the housing are favored if the outer peripheral edge of the splash guard ring is at least approximated to the inside circumference of the jet regulator housing.

In this case, a structurally simple embodiment which can be produced with comparatively little outlay according to the invention provides that, on the outer circumference of the first insert part, rotationally locking projections, preferably evenly spaced apart from one another, are provided in the circumferential direction, which anti-rotation projections connect the splash guard ring and the network structure of the first insert part to one another.

If an anti-twist device is provided between the at least one insert part of the flow straightener and the jet regulator housing, it is advantageous if this anti-twist device has anti-rotation projections that protrude on the outer circumference of the at least one insert part and if these anti-rotation projections protrude into anti-rotation grooves or recesses on the inside circumference of the jet exciter housing.

An embodiment according to the invention provides that the free outer end of at least the webs of the first insert, which are oriented, for example, radially in the direction of the at least one ventilation opening, ends at a distance in front of the retaining ring surrounding the mesh structure of this insert, if the first insert has such a retaining ring.

The water flowing through can be divided even more particularly well in the flow straightener and then shaped into a homogeneous overall jet if the intersection nodes or contact points formed by the webs of the second insert part are arranged offset to the network structure of the first insert part such that these intersection nodes or contact points are below, flow openings of the first insert part bounded by adjacent webs are arranged.

Further developments according to the invention result from the claims in connection with the description and the figures. The following is a preferred example of the invention Embodiment described in more detail.

Figur 1

einen im Längsschnitt dargestellten Strahlregler, der ein zuströmseitiges Vorsatz- oder Filtersieb, einen als Lochplatte ausgebildeten Strahlzerleger und in Durchströmrichtung nachfolgend einen Strömungsgleichrichter aufweist, welcher Strömungsgleichrichter ein erstes und ein zweites Einsetzteil hat, die in den Gehäuseinnenraum des Strahlreglergehäuses einsetzbar sind,

Figur 2

die in das Strahlreglergehäuse eingesetzten Einsetzteile des Strahlreglers gemäß Figur 1 in einem Längsschnitt,

Figur 3

die in ihrer Einsetzposition übereinanderliegenden Einsetzteile des in Figur 1 gezeigten Strahlreglers, und

Figur 4

das erste und in Durchströmrichtung vordere Einsetzteil des Strahlreglers gemäß Figur 1 in einer perspektivischen Einzelansicht.

It shows:

Figure 1

a jet regulator shown in longitudinal section, which has an inlet or filter screen on the inflow side, a jet separator designed as a perforated plate and a flow straightener downstream in the flow direction, the flow straightener having a first and a second insert part which can be inserted into the interior of the jet regulator housing,

Figure 2

the insert parts of the jet regulator inserted in the jet regulator housing according to Figure 1 in a longitudinal section,

Figure 3

the insert parts of the in Figure 1 shown jet regulator, and

Figure 4

the first and in the flow direction front insert part of the jet regulator according to Figure 1 in a perspective single view.

In the Figures 1 to 4 A jet regulator 100 is shown, which can be mounted on the water outlet of a sanitary outlet fitting, in order to shape the water emerging from the outlet fitting (not shown further here) into a homogeneous, non-splashing water jet. The jet regulator 100 has a jet regulator housing 2 with a housing peripheral wall 3 which is round in cross section here. In order to be able to mix the water flowing through the jet regulator 100 with ambient air and to make the emerging water jet sparklingly soft, ventilation openings 4 are provided which - over the housing periphery of the Jet regulator housing 2, preferably distributed at regular intervals in the circumferential direction - pass through the housing peripheral wall 3 and open into the interior of the jet regulator housing 2.

In order not to let the limescale deposits and similar dirt particles possibly contained in the inflowing water penetrate into the jet regulator housing 2, where these dirt particles can get caught and lead to malfunctions, the jet regulator 100 is cone-shaped on the inflow side Attachment sieve 5 releasably connected. A jet splitter 6 is provided below the front screen 5 on the inflow side of the jet regulator 100. The jet splitter 6 arranged in the jet regulator housing 2 is designed here as a perforated plate which has a multiplicity of flow openings 7 which are arranged on concentric circles. The jet splitter 6 divides the incoming water into a large number of individual jets. These individual jets experience a speed increase in the flow openings 7 of the jet splitter 6, so that a negative pressure is created on the outflow side of the jet splitter 6. The ventilation openings 4 provided in the housing peripheral wall 3 of the jet regulator housing 2 are arranged there in an annular zone on the downstream side of the jet splitter 6. The resulting on the outflow side of the jet splitter 6 sucks the ambient air through the ventilation openings 4 into the interior of the jet regulator housing 2, where this ambient air can mix with the individual jets generated in the jet splitter 6 before the individual jets mixed with air in one, the Jet splitter 6 downstream flow straighteners are formed into an aerated total jet.

The flow straightener of the jet regulator 100 here consists of two insert parts 8, 9 which can be inserted into the interior of the jet regulator housing 2. For this purpose, the jet regulator housing 2 is formed in two parts and has a first housing part 10 and a cup-shaped second housing part 11. While the jet splitter 6, which is designed as a perforated plate, is molded into the first housing part 10, the insert parts 8, 9 of the flow straightener are inserted into the second housing part 11. The insert parts 8, 9 of the flow straightener are held in the housing interior when the housing parts 10, 11 are detachably connected to one another.

The insert parts 8, 9 of the jet regulator 100 each have a network structure here, which initially further divides the aerated individual jets flowing through, the individual jets coming from the jet splitter 6 and mixed with ambient air being guided between the webs of the insert members 8, 9 and emerging homogeneously , non-splashing and sparkling-soft overall jet. From a comparison of the Figures 1 to 4 it becomes clear that the insert parts 8, 9 of the jet regulator 100 have a network structure consisting of webs 13, 15 which cross at intersection nodes 14. These network structures in the Figures 1 to 4 The insert parts 8, 9 shown here are formed by a family of radially oriented webs 13, 13 'which intersect at intersection marks 14 with a family of webs 15 arranged concentrically to one another.

From a comparison of the Figures 1 to 4 it becomes clear that at least in the inflow-side first insert part 8, the free outer end of the webs 13, which are oriented radially in the direction of a ventilation opening 4, end at a distance in front of the inner circumference of the jet regulator housing 2. In this way, an outlet opening 20, which extends at least over an assigned ventilation opening 4, is formed in the network structure of the first insert part 8 of the flow straightener. In the jet regulator 100 shown here, this outlet opening 20 is formed between the network structure of the first insert part 8 and the inner circumference of the housing. Since the water flowing to the flow straightener in the area of the ventilation openings 4 can thus pass through these outlet openings 20 without the inflowing water being backed up in front of the flow straightener, undesirable flow noises in the area of the ventilation openings 4 and the interval-like build-up and breakdown of a water film therein Area prevented.

In the Figures 1 to 4 It can be seen that the second insert part 9 likewise has a network structure formed by webs 13 ', 15 which intersect with one another, the intersection nodes 14 formed by the webs 13', 15 of the second insert part 9 being arranged offset to the network structure of the first insert part 8, that these intersection nodes 14 of the second insert part 9 are arranged below flow openings of the first insert part 8, delimited by adjacent webs 13, 15. In this case, webs 15 are held on a retaining ring 12 of the second insert part 9 on the inner circumferential side, although they are in the plane of the network structure of the second insert part 9, but - seen in the flow direction - in the extension of the webs 13 on the first insert part 8, which are oriented radially in the direction of a ventilation opening 4 are arranged. The webs provided on the retaining ring 12 of the second insert part 9 on the inside circumference and in the extension of the radially oriented webs 13 on the first insert part 8 are designed here as web stubs 16, the stub ends of which - as is clear from FIGS. 14 through 14 - up to the free web end of the first insert part 8 associated webs 13 is sufficient. In this way it is ensured that the water flowing through the flow straightener is also further divided in the area of the outlet openings 20.

In order to ensure the staggered arrangement of the network structures provided in the insert parts 8, 9, the insert parts 8, 9 of the jet regulators 1, 100 are inserted in the circumferential direction in a rotationally secured manner into the interior of the jet regulator housing 2. For this purpose, an anti-rotation device is provided between the insert parts 8, 9 and the inner circumference of the housing.

For this purpose, the insert parts 8, 9 have at least one anti-rotation projection 18 on their outer circumference, each of which engages in a securing groove 19 oriented in the longitudinal direction of the jet regulator on the inner circumference of the housing peripheral wall 3.

The first insert part 8 of the in the Figures 1 to 4 The jet regulator 100 shown does not have an outer circumferential retaining ring; rather, the first insert part 8, which is at the front in the flow direction, has the radially oriented webs, the free web end of which protrudes beyond the outer circumferential web 15 and ends at a distance from the inner circumference of the jet regulator housing 2. In addition to this first insert 8, the flow straightener in the jet regulator 100 also has the second insert 9, which can also be inserted into the interior of the jet regulator housing. This second insert part 9 is connected downstream of the first insert part 8 in the flow direction and here also has a network structure made up of the webs 13 ′, 15 that cross each other at intersection nodes 14. While the first insert part 8 is designed without a ring in the jet regulator 100, its second insert part 9 has the opposite circumferential outer retaining ring 12 ', which delimits the network structure of this second insert 9.

In order to prevent the water drops hitting the webs 13, 15, in particular the first insert 8, from being thrown back and to prevent water drops thrown back in this way from accidentally escaping from the ventilation openings 4 in the jet regulator housing 2, a flat splash guard ring 101 is provided in the jet regulator 100 , which is arranged in the interior of the jet regulator 100 between the at least one ventilation opening 4 and the flow straightener. The outer peripheral edge of this splash guard ring 101 bears against or is against the inner circumference of the jet regulator housing 2 The inner circumference of the jet regulator housing 2 at least approximated. The splash guard ring 101, which is arranged at a distance above the network structure of the first insert part 8, is connected in one piece to the first insert part 8 of the flow straightener on the inflow side, via the anti-rotation projections 18. These anti-rotation projections 18 connect the splash guard ring 101 and the network structure of the first insert part 8 in one piece.

As in Figure 1 is recognizable, a lattice or network structure is integrally formed on the jet regulator housing 2 and in particular on its lower second housing part 11 on the downstream side. In the jet regulator 100 shown here, this structure formed on the downstream side is designed as a honeycomb-like lattice structure 1, this molded structure 1 forming the outlet end face of the jet regulator 100. Since the jet regulator 100 has such a one-piece lattice or network structure on the outlet end of its jet regulator housing 2, pushing up of the insert parts 8, 9 in the jet regulator housing 2 is prevented from the outlet end of the jet regulator 100.

LIST OF REFERENCE NUMBERS

1

molded grid or network structure

2

Flow regulator housing

3

Gehäuseumfangswandung

4

ventilation opening

5

attachment screen

6

beam splitter

7

Flow openings

8th

first insert

9

second insert

10

first housing part

11

second housing part

12 '

retaining ring

13, 13 '

Stege

14

intersection node

15

concentric ridges

16

bridge stub

18

Rotation projections

19

securing groove

20

drain hole

22

contact point

23

Splash ring

100

aerator

101

Splash ring

Claims (17)

1. Jet regulator (100) having a jet regulator housing (2) having a housing circumferential wall (3), in the housing interior of which a flow straightener is provided, said flow straightener having at least one first insert part (8, 9) that is insertable into the housing interior, said insert part (8, 9) having a grid structure which is formed from a set of radially oriented webs (13, 13') which intersect or are in contact with a set of concentrically encircling webs (15) at intersection points or contact points, and having at least one aeration opening (4) which passes through the housing circumferential wall (3) of the jet regulator (100), characterized in that the radially oriented webs (13, 13') have free web ends which protrude beyond the outer encircling web (15) of the grid structure and end at a distance from the housing circumferential wall (3) of the jet regulator housing (2), in that at least one web-free drain opening (20) is provided on the first insert part (8) between the free web ends of the radially oriented webs (13, 13') thereof and the housing circumferential wall (3) of the jet regulator housing (2), and in that the at least one drain opening (20) is arranged beneath the at least one aeration opening (4) in the flow direction.
2. Jet regulator according to Claim 1, characterized in that the flow straightener has, in addition to the at least one first insert part (8), at least one second insert part (9) that is insertable into the housing interior of the jet regulator housing (2).
3. Jet regulator according to Claim 2, characterized in that the at least one second insert part (9) is connected downstream of the at least one first insert part (8) in the throughflow direction and has a lattice or grid structure made up of webs (13, 13'; 15) that intersect one another at intersection points (14) or are in contact at contact points (22).
4. Jet regulator according to Claim 2 or 3, characterized in that the at least one second insert part (9) has an encircling outer retaining ring (12'), said retaining ring (12') bounding the lattice or grid structure of this insert part (9).
5. Jet regulator according to Claim 4, characterized in that the lattice or grid structure acts on the inner circumference of the retaining ring (12') of the at least one insert part (9).
6. Jet regulator according to one of Claims 1 to 5, characterized in that an anti-twist device is provided at least between the first insert part (8) and the housing circumferential wall (3).
7. Jet regulator according to one of Claims 1 to 6, characterized in that the jet regulator (100) has a jet splitter (6) which is connected upstream of the flow straightener in the flow direction, and in that the at least one aeration opening (4) is arranged in the housing circumferential wall (3) in an annular zone provided between the flow straightener and jet splitter (6).
8. Jet regulator according to one of Claims 4 to 7, characterized in that webs are retained on the inner circumferential side of the retaining ring (12') of the second insert part (9), said webs being arranged on the first insert part (8) in continuation of the radially oriented webs (13') in the jet regulator longitudinal direction.
9. Jet regulator according to Claim 8, characterized in that the webs that are provided on the inner circumferential side of the retaining ring (12') of the second insert part (9) and are arranged on the first insert part (8) in continuation of the radially oriented webs (13') are configured as web stubs (16), the stub ends of which reach approximately as far as the free web ends of the webs (13) assigned to the first insert part (8) .
10. Jet regulator according to one of Claims 2 to 9, characterized in that the intersection points (14) or contact points (22) formed by the webs (13, 13'; 15) of the second insert part are arranged in such an offset manner with respect to the grid structure of the first insert part (8) that these intersection points (14) or contact points (22) are arranged beneath throughflow openings, bounded by adjacent webs (13, 15), of the first insert part (8).
11. Jet regulator according to one of Claims 1 to 10, characterized in that a splash guard ring (101) is provided, which is arranged in the housing interior of the jet regulator housing (2), between the at least one aeration opening (4) and the flow straightener.
12. Jet regulator according to Claim 11, characterized in that the outer circumferential periphery of the splash guard ring (101) bears against the housing circumferential wall (3) of the jet regulator housing (2) or has been moved into the vicinity of the housing circumferential wall (3).
13. Jet regulator according to Claim 11 or 12, characterized in that the splash guard ring (101) is connected integrally to the front first insert part (8), on the inflow side, of the flow straightener.
14. Jet regulator according to one of Claims 1 to 13, characterized in that at least one anti-rotation protrusion (18) is provided on the outer circumference of at least the first insert part (8), said anti-rotation protrusion (18) protruding into anti-rotation grooves or indentations (19) in the housing circumferential wall (3) of the jet regulator housing (2).
15. Jet regulator according to Claim 14, characterized in that the at least one anti-rotation protrusion (18) provided on the first insert part (8) connects the splash guard ring (101) and the grid structure of the first insert part (8) integrally together.
16. Jet regulator according to Claim 14 or 15, characterized in that the anti-rotation protrusions (18) provided on the outer circumference of at least the first insert part are spaced apart from one another regularly in the circumferential direction.
17. Jet regulator according to one of Claims 1 to 16, characterized in that a lattice or grid structure (1) is integrally formed on the outflow side of the jet regulator housing (2) and preferably on a second housing part (9) thereof, said lattice or grid structure (1) forming the outlet end face of the jet regulator (100).

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