EP3350378B1 - Flow regulator - Google Patents

Description

The invention relates to a jet regulator with a jet regulator housing, in the housing interior of which at least one flow straightener is provided, which has an inflow-side first insert part and a second insert part connected downstream in the flow direction, which can be inserted into the housing interior and each have a circumferential outer retaining ring, the inner circumference of which The retaining ring of the respective insert part is provided with a grid or network structure which is oriented transversely to the direction of flow and consists of webs crossing or touching each other, of which the at least one inflow-side first insert part has a family of radially oriented webs, which are located at intersection nodes or points of contact with a group of concentric cross or touch circumferential webs, and with at least one ventilation opening which passes through a housing peripheral wall of the jet regulator, with at least the inflow side in the lattice or network structure At least one drain opening is provided towards the first insert part and extends in the circumferential direction over the at least one ventilation opening.

Various jet regulators have already been created, at the water outlet of a sanitary outlet fitting can be installed to form 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 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 into a ventilated overall jet in a flow straightener.

This flow straightener usually consists of at least two insert parts which 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 a flow obstacle in front of which the water flowing through them 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 temporarily closed 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 lime formation and to external contamination of the jet regulator or the outlet mouthpiece receiving the jet regulator.

So is from the WO 2004/033108 A1 A jet regulator of the type mentioned at the outset is already known, which has a flow straightener in the interior of its jet regulator housing, which further divides the water swirled inside the housing and enriched with ambient air and then has to make it homogeneous. This flow straightener has at least two insert parts which can be inserted into the housing interior and each have a circumferential outer retaining ring. On the inner circumference of the Retaining rings of these insert parts are each provided with a lattice or network structure oriented transversely to the direction of flow, which is formed from a family of radially oriented webs which intersect or touch at intersection nodes or points of contact with a family of concentrically circumferential webs. In order to be able to suck in ambient air into the interior of the jet regulator housing, the housing peripheral wall of the jet regulator housing is penetrated by at least one ventilation opening, at least one drain opening being provided in the grid or network structure, which extends in the circumferential direction over the at least one ventilation opening.

From the EP 1 616 999 A1 one already knows a jet regulator, which can be mounted with its jet regulator housing on the water outlet of a sanitary outlet fitting, in order to shape the water emerging there into a homogeneous, non-splashing and pearl-soft water jet. A flow straightener is provided in the interior of the jet regulator housing and has several insert parts that can be inserted into the interior of the housing. These insert parts of the known jet regulator each have a circumferential outer retaining ring, a grating or network structure oriented transversely to the direction of flow acting on the inner circumference of each retaining ring. Of the insert parts, the inflow-side first insert part has a network structure which is formed from a family of at least two radially oriented webs which intersect or touch at intersection nodes or points of contact with a family of at least two concentrically circumferential webs. The known jet regulator has at least one ventilation opening which passes through a housing peripheral wall of the jet regulator, at least in the lattice or network structure of at least the inflow-side first insert part of the flow straightener a drain opening is provided which extends in the circumferential direction overlapping or at least overlapping the at least one ventilation opening.

From the EP 1 001 095 A1 one already knows a jet regulator with a multi-part jet regulator housing, which has a network structure in an outlet-side sleeve-shaped part of the area of its jet regulator housing, which is formed from a family of at least two radially oriented webs, which are located at intersection nodes or points of contact with a family of at least two concentrically rotating webs tick or touch. The radially oriented webs are integrally formed on the inner peripheral side in the downstream part of the known jet regulator.

There is therefore in particular the task of creating a jet regulator of the type mentioned at the outset 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.

This object is achieved with the features of independent claim 1.

The solution to this problem according to the invention for the jet regulator of the type mentioned at the outset is, in particular, that of the radially oriented webs of the first insert part, the webs oriented in the direction of the at least one ventilation opening, each with a free outer end at a distance from the circumferential retaining ring of the first insert part ends, and that on the retaining ring of the second insert part connected downstream in the direction of flow, webs are held on the inner circumference, which, seen in a projection in the longitudinal direction of the jet regulator, extend the webs oriented towards the at least one ventilation opening with a free outer web Arranged at the end of the first insert and are designed as a web stub so that their stub end extends in the projection to the free outer end of the webs on the first insert.

A preferred embodiment according to the invention provides that the at least one drain opening is designed as a hole that breaks through the at least one grid or network structure. The water flowing to the flow straightener can therefore pass unhindered through the hole serving as the outlet opening in the grid or network structure without the water being dammed up in this area by this grid or network structure.

In order to always provide the drain openings provided in the lattice or mesh 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.

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 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 to the flow straightener is connected upstream in the direction of flow, and if the ventilation opening (s) are arranged on the inner circumference of the housing in an annular zone provided between the flow straightener and the jet splitter. 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, with the pot base forming an impact surface and with circumferentially spaced flow holes on the circumference of this pot shape, in which the inflowing water is divided into the required individual jets.

The water flowing through can be divided particularly well in the flow straightener and then shaped into a homogeneous overall jet, albeit the second Insert part has a network structure formed by coulters of intersecting or touching webs, and 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 located below flow openings of the first insert part are arranged.

In order to prevent uncontrolled fault currents in the annular gap between the holding ring of the insert parts on the one hand and the housing inner circumference of the jet regulator housing on the other hand, it is advantageous if at least the inlet part of the flow straightener arranged on the inflow side, at least with the inflow-side outer peripheral edge region of its holding ring, lies circumferentially tight on the inner periphery of the jet regulator housing. For this purpose, the retaining ring of this insert part can have an outer circumference which widens in regions counter to the direction of flow.

Further developments according to the invention result from the claims in connection with the description and the figures. Below we describe the invention in more detail with reference to a preferred embodiment.

Figur 1

einen sogenannten belüfteten Strahlregler in einer Seitenansicht, der Belüftungsöffnungen hat, welche ein im Querschnitt rundes Strahlreglergehäuse durchsetzen und im Gehäuseinnenraum des Strahlreg-lergehäuses münden,

Figur 2

den Strahlregler aus Figur 1 in einem Längs-schnitt, der ein zuströmseitiges Vorsatzsieb, ein hier als Lochplatte ausgebildeten Strahlzerleger, einen in Durchströmrichtung nachgeschalteten und hier aus zwei Einsetzteilen gebildeten Strömungs-gleichrichter sowie eine abströmseitige Homogeni-siereinrichtung aufweist,

Figur 3a

den Strahlregler aus Figur 1 und 2 in einem Detail-Längsschnitt in dem in Figur 2 gekennzeichneten Bereich einer der im Strahlreglergehäuse vorgesehenen Belüftungsöffnungen,

Figur 3b

Figur 1 und 2 den hier ebenfalls längsgeschnittenen Strahlregler aus Figur 1 bis 3a in dem in Figur 7 außen angeordneten Teilbereich der Einzelteile, wobei am Halteteil des zuströmseitigen Einsetzteiles hier jedoch die Abdeckwandungen nicht mitgeschnitten wurden,

Figur 4

den in einer auseinandergezogenen perspektivischen Darstellung gezeigten Strahlregler aus den Figuren 1 bis 3, wobei das Strahlreglergehäuse dieses Strahlreglers zweiteilig ausgebildet ist und ein zuströmseitiges sowie ein abströmseitiges Gehäuseteil hat,

Figur 5

den Strahlregler aus den Figuren 1 bis 4 in einer auseinandergezogenen Einzelteildarstellung,

Figur 6

ein perspektivisch dargestelltes zuströmseitiges Einsetzteil eines, in einem Strahlregler gemäß den Figuren 1 bis 5 verwendbaren Strömungsgleichrichters,

Figur 7

ein mit Figur 6 vergleichbares zuströmseitiges Einsetzteil sowie ein in Strömungsrichtung unmittelbar dahinter angeordnetes abströmseitiges Einsetzteil eines in einem Strahlregler gemäß den Figuren 1 bis 6 verwendbaren Strömungsgleichrichters,

Figur 8

das in einer perspektivischen Darstellung gezeigte abströmseitige Einsetzteil des Strahlreglers aus den Figuren 1 bis 5,

Figur 9

die Einsetzteile des im Strahlregler gemäß den Figuren 1 bis 8 verwendeten Strömungsgleichrichters in einer Draufsicht auf die Abströmseite des abströmseitigen Einsetzteiles,

Figur 10

die den Strömungsgleichrichter bildenden Einsetzteile in einer in Figur 9 umgrenzten Detailansicht im Bereich der äußeren Halteringe dieser Einsetzteile,

Figur 11

die den Strömungsgleichrichter bildenden Einsetzteile aus Figur 9 und 10 in einer perspektivischen Darstellung, wobei das obere Einsetzteil hier teilweise aufgeschnitten gezeigt ist,

Figur 12

die aufeinanderliegenden Einsetzteile des in den Figuren 9 bis 11 gezeigten Strömungsgleichrichters in der in Figur 11 umkreisten Detaildarstellung in der Schnittebene des oberen Einsetzteiles,

Figur 13

die beiden übereinanderliegenden und den Strömungsgleichrichter bildenden Einsetzteile aus den Figuren 9 bis 12 in einer Seitenansicht,

Figur 14

die beiden übereinanderliegenden Einsetzteile aus den Figuren 9 bis 13 in einem Querschnitt durch die Schnittebene XIV-XIV gemäß Figur 13,

Figur 15

eine perspektivische Draufsicht auf ein alternativ ausgebildetes zuströmseitiges Einsetzteil, wobei die Netzstruktur dieses Einsetzteiles aus einander an Berührungspunkten berührenden Stegen gebildet ist,

Figur 16

das Einsetzteil aus Figur 15 in einer geschnitten dargestellten perspektivischen Draufsicht,

Figur 17

eine perspektivische Draufsicht auf ein weiteres, alternativ ausgebildetes zuströmseitiges Einsetzteil, wobei die Netzstruktur auch dieses Einsetzteils aus einander an Berührungspunkten berührenden Stegen gebildet ist, und

Figur 18

das Einsetzteil aus Figur 17 in einer geschnitten dargestellten perspektivischen Draufsicht.

It shows:

Figure 1

a so-called ventilated jet regulator in one Side view, which has ventilation openings which penetrate a jet regulator housing which is round in cross section and open into the interior of the jet regulator housing,

Figure 2

the aerator Figure 1 in a longitudinal section, which has an inlet screen on the inflow side, a jet separator designed here as a perforated plate, a flow straightener connected downstream in the flow direction and here formed from two insert parts, and an outflow-side homogenizer,

Figure 3a

the aerator Figure 1 and 2 in a detail longitudinal section in the in Figure 2 marked area of one of the ventilation openings provided in the jet regulator housing,

Figure 3b

Figure 1 and 2 the jet regulator also cut longitudinally here Figure 1 to 3a in the in Figure 7 externally arranged partial area of the individual parts, the cover walls not being cut on the holding part of the inflow-side insert part,

Figure 4

the jet regulator shown in an exploded perspective view from the Figures 1 to 3 , wherein the jet regulator housing of this jet regulator is formed in two parts and has an inflow-side and an outflow-side housing part,

Figure 5

the aerator from the Figures 1 to 4 in an exploded view of individual parts,

Figure 6

a perspective upstream insertion part of a, in a jet regulator according to the Figures 1 to 5 usable flow straightener,

Figure 7

one with Figure 6 Comparable inflow-side insert part and a downstream-side insert part arranged in the flow direction immediately behind it in a jet regulator according to the Figures 1 to 6 usable flow straightener,

Figure 8

the downstream part of the jet regulator shown in a perspective view of the Figures 1 to 5 .

Figure 9

the insert parts of the in the aerator according to Figures 1 to 8 used flow straightener in a plan view of the outflow side of the outflow-side insert,

Figure 10

the insert parts forming the flow straightener in an in Figure 9 delimited detailed view in the area of the outer retaining rings of these insert parts,

Figure 11

the insert parts forming the flow straightener Figures 9 and 10 in a perspective view, the upper insert shown here partially cut away is

Figure 12

the stacked insert parts of the in the Figures 9 to 11 flow rectifier shown in the in Figure 11 circled detailed representation in the section plane of the upper insert part,

Figure 13

the two superimposed insert parts forming the flow straightener from the Figures 9 to 12 in a side view,

Figure 14

the two superimposed insert parts from the Figures 9 to 13 in a cross section through the section plane XIV-XIV according to Figure 13 .

Figure 15

2 shows a perspective top view of an alternative inflow-side insert part, the network structure of this insert part being formed from webs touching one another at points of contact,

Figure 16

the insert part Figure 15 in a sectional top view,

Figure 17

2 shows a perspective top view of a further, alternatively designed inflow-side insert part, the network structure of this insert part also being formed from webs touching one another at points of contact, and

Figure 18

the insert part Figure 17 in a perspective top view shown in section.

In Figure 1 A jet regulator 1 is shown, which can be mounted on the water outlet of a sanitary outlet fitting in order to form the water emerging from the outlet fitting, which is not shown further here, into a homogeneous, non-splashing water jet. The jet regulator 1 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 1 with ambient air and to make the emerging water jet pearl-soft, ventilation openings 4 are provided which - over the housing periphery of the Jet regulator housing 2 distributed at a distance - push through the housing peripheral wall 3 and open into the interior of the jet regulator housing 2.

In order not to let the lime 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 1 is detachably connected on the inflow side to a conical screen sieve 5 here. A jet splitter 6 is provided below the front screen 5 on the inflow side of the jet regulator 1. 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 outflow side of the jet splitter 6. The vacuum created on the downstream side of the jet separator 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 this way are formed into a ventilated overall jet in a flow straightener downstream of the jet splitter 6.

The flow straightener here consists of two insert parts 8, 9 which can be inserted into the interior of the jet regulator housing 2. The jet regulator housing 2 is designed in two parts for this purpose and has a first housing part 10 and a cup-shaped second housing part 11. While the jet splitter 6 designed as a perforated plate is molded into the first housing part 10, the insert parts 8, 9 of the flow straightener can be 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 each have a network structure here, which initially further divides the ventilated individual jets flowing through. The insert parts 8, 9 which form the flow straightener and can be used in the interior of the jet regulator housing 2 have a circumferential outer retaining ring, the mesh structure acting on the retaining rings 12, 12 'of the insert parts 8, 9.

From a comparison of the Figures 4 to 9 . 11, 12 and 14 it becomes clear that the insert parts 8, 9 have a lattice or network structure made up of webs crossing at intersection nodes. This grid or mesh structure is held on the inner circumference of a retaining ring 12 or 12 'which surrounds the grid or mesh structure on the outer circumference.

The network structures in the Figures 4 to 9 . 11, 12 and 14 The insert parts 8, 9 shown here are formed by a family of radially oriented webs 13, 13 ′ which intersect at intersection nodes 14 with a family of webs 15 arranged concentrically to one another.

From a comparison of the Figures 6 . 7 . 9 and 10 it becomes clear that at least in the inflow-side first insert part 8, the free outer end of the webs 13 oriented radially in the direction of a ventilation opening 4 ends at a distance in front of the ventilation opening 4. In this way, an outlet opening 20 extending over an assigned ventilation opening 4 is formed in the lattice or network structure of the first insert part 8 of the flow straightener. These drain openings 20 are designed as a hole breaking through the lattice or network structure. Since the water flowing to the flow straightener can pass unhindered through the outlet openings 20 in the area of the ventilation openings 4 without the inflowing water being dammed up there, undesirable flow noises in the area of the ventilation openings 4 and the interval-like build-up and removal of a water film in this area are prevented.

In Figure 3b it can be seen that the retaining ring 12 of the inflow-side first insert part 8 with its circumferential inflow-side end edge can also be arranged in a plane lying below the ventilation openings 4. In order to prevent the individual jets swirled beneath the jet splitter 6 from escaping from the jet regulator housing 2, the upstream end edge of the retaining ring is preferably angled radially inward and can at least partially cover the outlet opening 20 located behind it in the flow direction.

For the same purpose, however, for the inflow-side insert 8 in the Figures 2, 3a . 4 to 7 . 11 and 13 Preferred embodiment shown. It is in the Figures 3a and 4 It can be seen that the retaining ring 12 of the first insert part 8 projects at least in the area of the ventilation openings 4 in the longitudinal direction of the jet regulator. In the in the Figures 6 and 7 In the preferred embodiment shown, the inflow-side insert 8 has a retaining ring 12 which is flat on its inflow side. In contrast, the retaining ring 12 of the first insert part 8 in the in the Figures 1 to 5 and 8 to 14 The embodiment shown is crown-shaped and has a plurality of cover walls 17 which are spaced apart from one another in the circumferential direction and are arranged on a common circular path and are oriented in the longitudinal direction of the jet regulator and which each protrude above a ventilation opening 4. These cover walls 17 are provided on the retaining ring 12 of the inflow-side insert 8 and in particular on the inflow-side end edge thereof, and are in particular integrally formed thereon.

In the Figures 9 . 11 and 14 It can be seen that the second insert part 9 also 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 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 the retaining ring 12 of the second insert part 9 on the inner circumference side and are arranged in the longitudinal direction of the jet regulator in an extension of the webs 13 ′ oriented radially in the direction of a ventilation opening 4 on the first insert part 8. The provided on the retaining ring 12 of the second insert 9 on the inner circumference and in the extension of the webs arranged radially in the direction of a ventilation opening 4 on the first insert part 8, webs are designed here as web stub 16, the stub end of which, as in FIGS Figures 10 and 12 becomes clear - extends to the free web end of the webs 13 assigned to the first insert part 8. 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.

The connection of the network structure provided in the first insert part 8 to the retaining ring 12 of the first insert part 8 takes place at points which are not critical in terms of flow. For this purpose, it is provided that the network structure is held in the areas between adjacent ventilation openings 4 on the inner circumference of the retaining ring 12 of the first insert part 8.

In order to ensure the staggered arrangement of the mesh structures provided in the insert parts 8, 9, to always position the ring formations 17 on the retaining ring 12 of the first insert part 8 in front of the ventilation openings 4 and to hold the drain openings 14 in front of the ventilation openings 4, they are Insert parts 8, 9 can be inserted in the circumferential direction, secured against rotation, 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 on the outer circumference of their retaining rings 12, 12 'at least one anti-rotation projection 18 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.

As from a comparison of the Figures 2 . 4 and 5 becomes clear, the jet regulator 1 also has on its outflow side Grid or network structure. In the jet regulator 1 shown here, this outflow-side structure is designed as a honeycomb-shaped lattice structure 21. The lattice structure 21 is integrally formed on the jet regulator housing 2 and in particular on its second housing part 11 and prevents the insert parts 8, 9 located in the interior of the jet regulator housing 2 from being pushed up undesirably.

In the Figures 15 to 18 alternative designs of an insert part are illustrated with reference to the inflow-side insert parts 8 shown by way of example. Like from the Figures 15 to 18 it can be seen that the at least one insert part or at least one of the insert parts of the flow straightener located in the jet regulator housing 2 can have a lattice structure and in particular - as here - a network structure made up of webs 13, 15 touching at points of contact 22, a group of concentrically revolving webs also here 15 touches the webs 13 of a family of radial webs 13. Just as the webs 13, 15 shown above and crossing one another at intersection nodes 14, the webs 13, 15 are the ones in FIGS Figures 16 to 19 Insert parts 8 shown are integrally connected to one another at the contact points 22. While in the Figures 15 and 16 Embodiment shown, the concentric webs 15 are arranged in an upstream plane and the radial webs 13 integrally connected therewith in an underlying downstream plane are in the in the Figures 17 and 18 In contrast, the exemplary embodiment shown shows the radial webs 13 arranged in an upstream plane, while the concentrically rotating webs 15 are provided in a downstream plane.

The in the Figures 15 to 18 The insert parts 8 shown, each of which shows the first insert part 8 of the flow straightener provided in the jet regulator housing 2 in the flow direction, have an external retaining ring 12 which, on the inflow side, carries a molded-on splash-guard ring 23 which projects radially inward and projects like an annular flange. At least the radial webs 13 arranged in the area below a ventilation opening 4 each have a free web end, which protrudes beyond the outer circumferential web 15, but ends at a distance from the retaining ring 12 and thus also from the housing inner circumference of the jet regulator housing 2, and thereby extends in the circumferential direction Form over the at least one ventilation opening 4 extending drain opening 20.

Claims (12)

1. Jet regulator (1) having a jet regulator housing (2) in the housing interior space of which at least one flow rectifier is provided which has an inflow-side first insert part (8) and a second insert part (9), disposed downstream in the flow direction, which (8, 9) are insertable into the housing interior space of the jet regulator housing (2) and which (8, 9) have in each case one encircling external holding ring (12, 12'), wherein a mesh or net structure from mutually crossing or contacting webs (13, 15) is provided in each case on the internal circumference of the holding ring (12, 12') of the respective insert part (8, 9), one mesh or net structure from mutually crossing or contacting webs (13, 15) which is oriented transversely to the flow direction in each case is provided, of which the at least one inflow-side first insert part (8) has a group of radially oriented webs which at intersection points or contact points cross or contact a group of concentrically encircling webs, and having at least one aeration opening (4) which penetrates a housing circumferential wall (3) of the jet regulator (1), wherein at least one outlet opening (20) that extends in the circumferential direction across the at least one aeration opening (4) is provided in the mesh or net structure at least of the inflow-side first insert part (8) characterized in that of the radially oriented webs of the first insert part (8), the webs (13) that are oriented in the direction towards the at least one aeration opening (4) terminate in each case by way of a free external end at a spacing from the encircling holding ring (12) of the first insert part (8), and in that webs (16), which when viewed in a projection in the longitudinal direction of the jet regulator, are disposed on the first insert part (8) in the extension of the webs (13), having a free external end, that are oriented in the direction toward at least one aeration opening (4), are held on the internal circumference on the holding ring (12') of the second insert part (9), disposed downstream in the flow direction, and are configured as web stumps (16) such that the stump ends thereof in the projection reach up to the free external end of the webs (13) on the first insert part (8).
2. Jet regulator according to Claim 1, characterized in that the at least one outlet opening (20) is configured as a hole that breaches the mesh or net structure.
3. Jet regulator according to Claim 1 or 2, characterized in that only the encircling external holding ring (12) of the first insert part (8) on the inflow side is disposed between the at least one outlet opening (20) and the at least one aeration opening (4).
4. Jet regulator according to one of Claims 1 to 3, characterized in that the mesh or net structure provided on the internal circumference of the holding ring (12) of the first insert part (8) is held in the regions between neighboring aeration openings (4).
5. Jet regulator according to one of Claims 1 to 4, characterized in that at least the first insert part (8) is insertable into the housing interior space so as to be rotationally secured in the circumferential direction.
6. Jet regulator according to one of Claims 1 to 5, characterized in that an anti-rotation device is provided at least between the first insert part (8) and the housing internal circumference.
7. Jet regulator according to one of Claims 1 to 6, characterized in that the jet regulator (1) has a jet splitter (6) which in the flow direction is disposed upstream of the flow rectifier, and in that the aeration opening(s) (4) on the housing internal circumference are disposed in an annular zone that is provided between the flow rectifier and the jet splitter (6).
8. Jet regulator according to one of Claims 1 to 7, characterized in that the intersection points (14) or contact points (22) that are formed by the webs (13, 15) of the second insert part are disposed so as to be offset to the net structure of the first insert part (8) in such a manner that said intersection points (14) or contact points (22) are disposed below flow openings of the first insert part (8) that are delimited by neighboring webs (13, 15).
9. Jet regulator according to one of Claims 1 to 8, characterized in that the at least one outlet opening (20) is disposed on the internal side of the holding ring (12) that encompasses the mesh or net structure of the first insert part (8) on the external circumference.
10. Jet regulator according to one of Claims 1 to 9, characterized in that the first insert part (8) of the flow rectifier that is disposed on the inflow side, at least by way of the inflow side external peripheral region of the holding ring (12) of said insert part (8), bears on the internal circumference of the jet regulator housing (2).
11. Jet regulator according to one of Claims 1 to 10, characterized in that the inflow side end periphery of the holding ring (12) is angled in a radially inward manner on the inflow side first insert part (8), and at least in regions covers the outlet openings (20) that in the flow direction are disposed therebehind.
12. Jet regulator according to one of Claims 1 to 11, characterized in that a mesh or net structure (21) is integrally molded to the jet regulator housing (2) and in particular to the second housing part (11) of the latter, said mesh or net structure (21) forming the outflow end side of the jet regulator (1).

Images