EP2180102B1 - Flow regulator - Google Patents

Description

The invention relates to a jet regulator with a jet regulator housing, which has in its housing interior a jet disintegrating device with a plurality of flow holes for breaking the incoming water flow into a corresponding number of individual jets and at least one spaced apart in the flow direction grid and / or network structure, wherein in the between the jet disintegrating device (3) and the adjacent grid and / or network structure arranged housing part region a plurality of oriented in the flow direction and spaced pins are provided, which pins are arranged laterally outside of the flow direction oriented projection of the flow holes.

Jet regulators, which are to form a homogeneous, non-splashing and optionally also bead-soft water jet from the effluent from a sanitary outlet fitting water, are already known in various designs. Such jet regulators regularly have a designed as Einsetzpatrone and usable in the water outlet of a sanitary outlet fitting jet regulator housing, in its housing interior a has arranged on the inflow side and, for example, designed as a perforated plate jet disintegrator and at least one downstream in the flow direction grid or network structure. This at least one lattice or network structure, which may be a metal mesh, or may also be formed as a plastic lattice, can serve as a beam regulating device which mixes air coming from the jet separator with individual air streams. In addition or instead, at least one grate or network structure arranged downstream of the jet splitter can also be designed as a flow straightener which has to uniform the water jet emerging from the water outlet.

From the DE 201 15 636 U1 a jet regulator is already known, which has a jet decomposing device and a downstream in the flow direction Strahlreguliereinrichtung between a water inlet opening and a water outlet opening of its jet regulator housing. The designed as a perforated plate and a number of flow holes having jet decomposing device is arranged downstream of an insert, which has an annular wall which is connected via a plurality of radial webs with a central body. Between the annular wall and the housing wall of the jet regulator housing on the one hand and between the annular wall and the central body of the insert part on the other hand, an annular channel is provided in each case. The annular wall carries in a step-shaped portion a plurality of pins, which are arranged there in three concentric circles. Another concentric circle of pins is provided on the central body of the insert. The pins point with their conically tapered pin ends in the direction of the jet disintegrating device and are irradiated by one of each of the jet disintegrating individual jets in such a way that the pin ends each have a Abweisschräge for form the individual flow jets coming from the throughflow holes of the jet disintegrating device. The provided in the prior art jet regulator pins thus have a priority jet-forming effect on the water flowing through and are intended to serve as a flow obstacles to the deflected by them individual beams for deceleration, splitting and air mixing of these water jets.

From the US 7,217,362 B2 a jet regulator is already known, which carries on the downstream side serving as a jet disintegrating perforated plate and in the region of the water outlet opening of the jet regulator housing concentric annular walls, which lead the water flowing through it in ring channels. In this case, pyramid-shaped projections are formed on the inflow side of the provided in the region of the water outlet opening ring walls, which also decelerate the coming of the jet disintegrating single rays, split and thereby mix with air. These pyramidal protrusions in the out US 7,217,362 B2 Previously known jet regulators therefore have a predominantly jet-forming function.

From the DE-B-10 2005 001 419 B3 a generic aerator with a round in cross-section aerator housing is already known, in the housing interior a jet decomposing device is provided with a plurality of flow holes for decomposing the inflowing water flow in a corresponding number of individual jets. At least one insert part downstream of the jet decomposition device has a grid or network structure which is formed from radial concentric grid bars and thus intersecting at crossing nodes. This grid or network structure of the insert part has at its, irradiated by the coming of the beam decomposing device individual beams Junction node on an inflow-side depression of the grid on, such that the arranged between adjacent crossing nodes portions of the grid or network structure appear as flow-oriented and spaced-apart pins. Since the individual beams coming from the jet disintegrating device are aligned with the crossing nodes of the grid or network structure provided in the insert part, their partial regions appearing as pins are arranged outside the flow-oriented projection of the throughflow holes.

Since these pins are actually only partial areas of the lattice or network structure and rise only comparatively little in the axial direction over the depressions arranged in the crossing nodes, their influence is on the beam formation of the individual jets during the flow through the water flow as well as after an interruption of the flow Water flow low.

In the previously known jet regulators, there is the risk that the water remaining in the jet regulator housing, even after the water valve has been closed, is exposed to the sometimes dry ambient air in such a way that this residual water in the interior of the housing evaporates, leaving behind a disturbing layer of limescale. Over time, this can lead to a disturbing layer of limescale in the housing interior of the jet regulator housing and, in particular, in the small jet drill holes of the jet breaker, which permanently impair or even preclude the functionality of this jet regulator.

It has also already created aerator, which have a non-circular aerator housing with a larger compared to the housing depth housing width to a water outlet to produce wide outflowing water band. Since a larger, exposed to the ambient air surface is formed especially in these, in cross-section non-round jet regulator housings inside the housing, here the problem of calcification amplified.

There is therefore still the task of creating a jet regulator of the type mentioned above, which is characterized over a longer period by a trouble-free operation.

The achievement of this object is in the jet regulator of the type mentioned in particular that the jet regulator housing has a non-circular housing cross-section with a larger compared to the housing depth housing width, that a plurality of rows of parallel pins are provided, and that the pins are substantially over the distance extend between the jet disintegrating device and the adjacent grid and / or network structure and are each provided as an evaporation surface wettable by the water flowing through the jet regulator housing and being arranged outside the area irradiated directly by the individual jets.

The jet regulator according to the invention has a plurality of pins, which are oriented in the direction of flow and spaced apart from one another, in the housing partial region arranged between the jet decomposing device and the adjacent grid and / or net structure and which extend over the distance between the jet decomposing device and the adjacent grid element. or network structure. It is meant by "pin" each, oriented approximately axially parallel to the flow direction projection, for example, a square or a rectangular or otherwise have elongated cross-section or may be formed as a wall section. Since these pins do not significantly influence the flow of water through, but only after an interruption of the water flow to form an wettable by the flowing water evaporation surface, the pins are arranged laterally outside of the oriented in the flow direction projection of the flow holes of the jet disintegration device. This arrangement of the pins in the housing interior of the jet regulator housing has the consequence that the pins are not directly illuminated by the individual jets, but serve only as a non-jet-forming acting evaporation surface outside of the irradiated by the individual beams portion. Since the jet regulator housing of the jet regulator according to the invention has a non-circular housing cross-section with a greater housing width compared to the housing depth, since several rows of parallel pins are provided therein and since the pins extend substantially over the distance between the jet disintegrating device and the adjacent grid and / or network structure , the pins can form a significant and correspondingly effective evaporation surface. These relatively long and flowed around by flowing water pins or webs are occupied even after closing the water valve with an enveloping water film, which leads to increased humidity and thus lower evaporation inside the housing of the jet regulator. Evaporation-related calcification must be prevented especially in the small Zerlegerbohrungen the inflow upstream Strahlzerlegereinrichtung because otherwise a poor jet pattern and insufficient ventilation of the water jet flowing through the result. In fact, the water pressure acting on such jet regulators is not sufficient to scavenge these small drill holes from such calcifications and to break through such calcifications. Similar to a "sacrificial anode" in the field of electrical engineering, the pins provided according to the invention now form an evaporation surface which prevents evaporation-related calcification in the region of the small drill holes of the jet-splitting device arranged upstream of the flow direction. Since thus a complete dehydration is delayed in the interior of the jet regulator housing between the time intervals of water use, and thus undesirable lime deposits inside the housing of the jet regulator housing is counteracted, the jet regulator according to the invention is characterized by a high reliability even over a longer period of time.

Since the pins provided in the jet regulator according to the invention do not develop a predominantly beam-forming function, it is expedient if individual beams coming from the jet-splitting device irradiate a respective intersection node of the webs of the grating and / or network structure intersecting at intersection nodes directly and, if this is oriented in the direction of flow Projection of at least more than half of the flow holes is each aligned with a crossing node.

In order for the pins to form a comparatively large surface which is wettable by the flowing water, it is advantageous if the ratio of the height h of the pins to the diagonal d, in particular at the foot of the pins, is greater than 1.5, preferably greater than 2.0 and in particular greater than 2.5 is.

In this case, a preferred embodiment according to the invention provides that each pin has a total surface area greater than 5 mm ² , preferably greater than 7 mm ² and in particular greater than 9 mm ² . This area is a measure of the adhesiveness that the pens exert on the water.

The inventively provided pins can be held in any suitable form in the housing interior of the jet regulator housing. Thus, these pins can be formed, for example, to the bottom or outflow side of the jet disintegrating device. A preferred embodiment according to the invention, however, provides that the pins are additionally or instead formed on the outflow side of the jet disintegrating device and / or on the upstream side of the grating or network structure adjacent thereto.

A preferred embodiment according to the invention sees In each case, the lattice and / or network structures forming the jet regulating device have a plurality of webs oriented transversely to the flow direction and delimiting passage openings between them.

In an embodiment according to the invention, in which the pins are integrally formed on the upstream side of the adjacent grid or network structure, it may be advantageous if the pins point with their free pin ends in the direction opposite to the direction of flow, there to the closing of the Water valve in this housing part area to keep remaining water longer.

In order for each individual pencil to be able to hold a comparatively large amount of water as a superficial film of water, it is advantageous if at least one pin has a non-round, preferably a polygonal, and in particular a cross-shaped pin cross-section. In particular, a cross-shaped pin cross-section has the advantage that it is particularly well adapted in its cross-section to the lattice or network structure supporting it.

The pins can be clipped, glued, welded or otherwise attached to the webs of the adjacent grid and / or network structure. A particularly simple and inexpensive to produce embodiment according to the invention, however, provides that the pins are integrally formed on the supporting webs.

The webs forming a lattice or network structure and the pins held thereon form a particularly good functional unit when the webs carrying the pins form a throughflow plane oriented transversely and preferably at right angles to the flow direction.

A preferred embodiment according to the invention provides that the webs carrying the pins are arranged in a lattice-like or net-like manner, crossing each other at crossing nodes.

A particularly advantageous development according to the invention provides that the webs carrying the pins form the inflow-side throughflow plane of the jet regulating device and are preferably connected directly downstream of a jet decomposing device in the flow direction.

In order for the Strahlraguliereinrichtung can mix the coming of the jet disintegrating single rays particularly well with air, it is advantageous if the Strahlreguliereinrichtung has several inserts, which are formed grid or net-like and have intersecting crossing points webs.

In this case, a preferred embodiment according to the invention provides that the preferably ventilated jet regulator has an inflow-side jet decomposing device and a downstream downstream Strahlreguliereinrichtung and that the Strahlreguliereinrichtung optionally downstream of a flow rectifier downstream.

Thus, the air flowing into the housing interior can pass well through the pin rows and thus the air sucked in by the aerator can distribute well over the entire cross section of the jet regulator housing, it is useful if multiple rows of parallel pins are provided and if the pins of the outer pin rows in comparison preferably have a smaller longitudinal extent to the pins of the inner pin rows and / or a greater distance from each other to have.

The invention will be described in more detail below with reference to a preferred embodiment. Further features according to the invention will become apparent from the following drawings in conjunction with the claims and the description.

Figur 1:

eine unrunden Strahlregler, der in seinem teilweise längsgeschnittenen Strahlreglergehäuse eine zuströmseitige und als Lochplatte ausgestaltete Strahlzerlegeeinrichtung aufweist, der in Strö- mungsrichtung mit Abstand eine Strahlreguliereinrichtung und abströmseitig ein Strömungsgleichrichter nachgeschaltet sind, wobei die Strahlreguliereinrichtung zwei Einsetzteile umfasst, die jeweils als Gitterstrukturen ausgebildet sind und vom Gehäuseumfang aus seitlich schubladenartig in das Strahlreglergehäuse eingeschoben werden können,

Figur 2:

den Strahlregler aus Figur 1 in einer perspektivischen Seitenansicht mit Blick auf eine am Gehäuseumfang angeordnete Belüftungsöffnung, durch die Luft in das Gehäuseinnere angesaugt werden kann,

Figur 3:

die Belüftungsöffnung in einer vergrößerten Detaildarstellung aus Figur 2, wobei die Belüftungsöffnung den Blick in das Gehäuseinnere freigibt,

Figur 4:

die der Strahlzerlegeeinrichtung benachbarte Git- terstruktur der dem Strahlregler aus Figur 1 bis 3 zugeordneten Strahlreguliereinrichtung, wobei diese Gitterstruktur auf ihrer Zuströmseite in Strömungsrichtung orientierte, achsparallele Stifte trägt,

Figur 5:

den Strahlregler aus Figur 1 bis 4 mit einer an- deren, gegenüber Figur 4 abweichend ausgestalteten Gitterstruktur ohne die darauf angeordneten Stifte, wobei die schubladenartigen Gitterstrukturen in Figur 4 und 5 bei Bedarf gegeneinander auswechselbar sind,

Figur 6:

die gegenüber Figur 4 abweichend ausgestaltete Gitterstruktur aus Figur 5,

Figur 7:

den Strahlregler aus Figur 1 bis 4 in einer teilweisen längsgeschnittenen Seitenansicht,

Figur 8:

die schubladenartig ausgestaltete Gitterstruktur aus Figur 4 in einer um 180° gedrehten Perspektivdarstellung,

Figur 9:

die Gitterstruktur aus Figur 4 und 8 in einer Draufsicht auf ihre, die Stifte tragende Zuströmseite,

Figur 10:

die etwa achsparallelen Stifte der in Figur 9 gezeigten Gitterstruktur in einer perspektivischen Detailansicht,

Figur 11:

die hier als Lochplatte ausgestaltete Strahlzerlegeeinrichtung in einer Stirnansicht auf ihre Zuströmseite, wobei durch die Durchflusslöcher der Strahlzerlegeeinrichtung in der in Durchströmrichtung orientierten Projektion jeweils ein Kreuzungsknoten der nachfolgenden Gitterstruktur zu erkennen ist,

Figur 12:

die zuströmseitige Stirnansicht des in den Figuren 1 bis 11 gezeigten Strahlregler, wobei die bereits in Figur 11 gezeigte Detailansicht eingekreist ist,

Figur 13:

den Strahlregler aus den Figuren 11 und 12 in einem Längsschnitt durch Schnittebene A-A aus Figur 12,

Figur 14:

den Strahlregler aus den Figuren 11 bis 13 in einem Querschnitt durch Schnittebene B-B aus Figur 13, wobei dieser Querschnitt eine Stirnansicht auf die Abströmseite der Strahlzerlegeeinrichtung freigibt,

Figur 15:

den Strahlregler aus Figur 11 bis 14 in einer mit Figur 11 vergleichbaren stirnansicht,

Figur 16:

den Strahlregler aus den Figuren 11 bis 15 in einem Längsschnitt durch Schnittebene C-C aus Figur 15, und

Figur 17:

den Strahlregler aus den Figuren 11 bis 16 in einem perspektivischen Teil-Längsschnitt.

It shows:

FIG. 1:

a non-circular jet regulator, which has in its partially longitudinally cut jet regulator housing an inflow-side and as a perforated plate configured jet disintegration device in the flow direction by far a Strahlreguliereinrichtung and downstream a flow rectifier, wherein the Strahlreguliereinrichtung comprises two insert parts, which are each formed as a grid structures and from Housing circumference can be inserted from the side drawer-like in the jet regulator housing,

FIG. 2:

off the jet regulator FIG. 1 in a perspective side view overlooking a housing opening arranged on the ventilation opening through which air can be sucked into the housing interior,

FIG. 3:

the ventilation opening in an enlarged detail FIG. 2 with the ventilation opening revealing the interior of the housing,

FIG. 4:

the grate adjacent to the jet dissection device terstruktur of the jet regulator Figure 1 to 3 associated Strahlreguliereinrichtung, said grid structure carries on its inflow side in the flow direction oriented, axis-parallel pins,

FIG. 5:

off the jet regulator Figure 1 to 4 with another, opposite FIG. 4 deviating lattice structure without the pins arranged thereon, wherein the drawer-like lattice structures in FIGS. 4 and 5 If necessary, they are interchangeable,

FIG. 6:

the opposite FIG. 4 deviating configured lattice structure FIG. 5 .

FIG. 7:

off the jet regulator Figure 1 to 4 in a partially longitudinal side view,

FIG. 8:

the drawer-like designed grid structure FIG. 4 in a perspective view rotated by 180 °,

FIG. 9:

the lattice structure FIG. 4 and 8th in a plan view of her, the pins carrying the inflow side,

FIG. 10:

the approximately paraxial pins of in FIG. 9 shown grid structure in a perspective detail view,

FIG. 11:

the here designed as a perforated plate jet disintegrating device in an end view on its inflow side, wherein through the flow holes the jet decomposing device can detect in each case a crossing node of the following lattice structure in the projection oriented in the direction of flow,

FIG. 12:

the inflow-side end view of the in the FIGS. 1 to 11 shown jet regulators, which are already in FIG. 11 circled detailed view is circled,

FIG. 13:

the jet regulator from the FIGS. 11 and 12 in a longitudinal section through section plane AA FIG. 12 .

FIG. 14:

the jet regulator from the FIGS. 11 to 13 in a cross section through sectional plane BB FIG. 13 , this cross-section exposing an end view to the downstream side of the jet decomposing device,

FIG. 15:

off the jet regulator FIGS. 11 to 14 in one with FIG. 11 comparable end view,

FIG. 16:

the jet regulator from the FIGS. 11 to 15 in a longitudinal section through section plane CC FIG. 15 , and

FIG. 17:

the jet regulator from the FIGS. 11 to 16 in a perspective partial longitudinal section.

In the FIGS. 1 to 17 is a jet regulator 1 is shown, which can be used in the water outlet of a sanitary outlet fitting, not shown here, to a homogeneous, non-spraying and pearly soft ventilated Shape water jet. The jet regulator 1 has a jet regulator housing 2 which has a non-circular housing cross-section with a larger housing width compared to the housing depth. For this rectangular in cross-section aerator housing 2 can also emerge a rectangular water band. On the inflow side of the jet regulator housing 2, a jet decomposing device 3 is provided inside the housing, which is designed here as a perforated plate having throughflow holes 30 and dividing the inflowing water into a multiplicity of individual streams. In this case, a negative pressure is generated on the outflow side of the jet decomposing device 3, which causes an intake of the ambient air. This ambient air, which is provided by the on the housing circumference and in FIGS. 2 and 3 venting port 4 shown in the housing interior may occur is mixed with the individual jets.

For this purpose, the Strahlzerlegeeinrichtung 3 downstream in the flow direction a Strahlreguliereinrichtung 5 downstream, here at least two adjacent grating structures 6, 7 comprises. These grid structures 6, 7 are designed here like a drawer and can be pushed laterally from the housing periphery into a corresponding housing opening. In this case, a partial area 8, 9 of the housing peripheral wall is integrally formed on each of the grid structures 6, 7, so that these wall partial areas 8, 9 in the in FIG. 1 and 7 shown use position close the housing opening. Of these grid structures 6,7 is in the FIGS. 11 to 17 only the upper grid structure 6 in the direction of flow is shown.

The grating structures 6, 7 assigned to the jet-regulating device 5 have a plurality of transversely oriented to the flow direction and between them through openings limiting Get on 10. These webs 10 are here like a grid to each other, crossing at junction node 11, arranged.

In the FIGS. 1 and 7 It can be seen that a plurality of pins 13, 14 are provided in the housing free space or housing section arranged between the jet disintegrating device 3 and the adjacent grating structure 6, which are oriented approximately axially parallel to one another in the flow direction and spaced from each other and which extend over the distance between the jet disintegrating device 3 and the adjacent grid structure 6 extend for the most part.

The jet regulator 1 shown here has, in the housing section arranged between the jet decomposing device 3 and the adjacent grid structure 6, a plurality of pins 13, 14 which are oriented in the flow direction and spaced from each other and which extend over the distance between the jet splitter 3 and the adjacent grid structure 6 extend. Each of these pins 13, 14 forms an evaporation surface which is arranged outside the area directly illuminated by the individual beams and wettable by the water flowing through the jet regulator housing 2. From a general view, especially the FIGS. 11 to 17 it is clear that the pins 13,14 are arranged laterally outside of the flow-oriented projection of the flow holes. The pins 13,14 are not intended to affect the flow of water substantially, but form only after closing the inflow valve and interruption of the water flow wettable by the flowing water evaporation surface. Since the pins 13, 14 do not develop a predominantly beam-forming function, the individual beams coming from the beam splitting device 3 can instead point to an intersection node 11 at the intersection node 11 be aligned crossing webs 10 of the downstream grid or network structure in order to effectively decelerate these individual beams, split and mix with air can.

From the FIGS. 11 to 14 It can be seen that the here cross-shaped pins 13,14 are arranged laterally outside of the flow-oriented projection of the flow holes 30. In the projection of the flow holes 30 and thus below these flow holes 30, the crossing nodes 11 of the downstream in the flow direction, the pins 13,14 supporting grid structure 6 can be seen. From this in the flow direction oriented projection of the flow holes 30, the pins 13,14 are clearly spaced. In the in FIG. 13 illustrated longitudinal section through sectional plane AA FIG. 12 It can be seen that even in a longitudinal section through the pins 13,14 in the perforated plate of the jet disintegrating device 3 no flow holes 30 can be seen, while in contrast in the in FIG. 16 shown longitudinal section, which passes through the flow holes 30 of the jet disintegrating device 3, it can be seen clearly that the pins 13, 14 located underneath the jet disintegrating device can be seen uncut in the side view. Furthermore, the positioning of the pins 13, 14 with respect to the jet disintegrating device 3 and its through-holes 30 will be made from the in FIG. 14 shown cross section through section plane BB FIG. 13 recognizable, which shows a cross section at the level of the pins 13,14, but with a view from below of the flow holes 30. In the cross section according to FIG. 14 the cut, cross-shaped pins and the adjacent or overflow holes 30 are clearly visible.

In FIG. 17 is the jet regulator 1 in a perspective shown partially cut representation. This comparatively long and flowed around by the flowing water pins 13,14 are occupied even after closing the water valve with an enveloping water film, which leads to increased humidity and thus to a lower evaporation inside the radiator housing 2. Since thus a complete dehydration is delayed in the interior of the jet regulator housing 2 between the time intervals of water use, and thus undesirable lime deposits inside the housing of the jet regulator housing 2 and in the small jet cutting holes of the jet breaker is counteracted, the jet regulator 1 shown here is characterized by a high level of reliability over a longer period of time.

The pins 13, 14 could be formed on the outflow side of the jet disintegrating device 3 and are held here on the upstream side of the adjacent lattice structure 6. The lattice structures 6, 7 and the lattice structure 15, which form the outflow end face of the jet regulator housing and which serve as a flow straightener 5, are each formed by two parallel and mutually crossing webs oriented transversely to the flow direction, which delimit passage openings between them. Like from the FIGS. 9 and 10 can be clearly seen, the pins 13, 14 on the webs 10 of the beam splitter 3 adjacent grating structure 6 are arranged.

In the FIGS. 1 and 7 It can be seen that the pins 13, 14 point with their free pin ends in the direction opposite to the flow direction. In order to provide the largest possible surface wettable with a water film, the pins 13, 14 have a non-round and in particular polygonal pin cross-section. The pins here have a cross-shaped Pin cross-section, which - like the top view in FIG. 9 clarified - the end face of them carrying crossing node 11 of the webs 10 corresponds.

The pins 13, 14 are integrally formed here on the supporting webs 10 of the adjacent grid structure 6. The webs carrying the pins 13, 14 form a throughflow plane oriented transversely and preferably at right angles to the flow direction and are arranged in a grid-like manner with each other, crossing each other at crossing nodes 11. The webs 10 of the adjacent grid structure 6 form an inflow-side throughflow plane of the Strahlreguliereinrichtung 5, which is the jet splitting device 3 downstream in the flow direction. From the FIGS. 1, 4 . 7, 8 and 10 It will be apparent that a plurality of rows of parallel pins 13, 14 are provided and that the pins 13 of the outer rows of pins have a greater longitudinal extent compared to the pins 14 of the inner rows of pins. In the FIGS. 2 and 3 It can be seen that the comparatively short pins 14 of the inner pin rows keep clear the plane bounded by a circumferential ventilation opening 4. The sucked through the vent 4 air can thus be well distributed over the entire cross section of the jet regulator housing and mixed there inside the housing with the coming of the jet disintegrating device 3 individual jets.

In FIG. 2 It can be seen that the jet regulator housing 2 of the jet regulator 1 can be inserted from the outlet end face into the water outlet of a sanitary outlet fitting. In this case, a resilient latching projection 17 is provided at the housing periphery of the jet regulator housing 2, which cooperates with a counter-locking means on the inner circumference of the water outlet.

From a comparison of FIGS. 1 and 4 on the one hand and the FIGS. 5 and 6 On the other hand, it can be seen that the jet regulator 1 illustrated here has a modular construction and that the jet regulator 1 can be assigned a plurality of grid structures 6 and / or 7 designed as drawer-type insertion parts. These interchangeable grating structures 6 make it possible to adapt the properties of the jet regulator shown here to the respective intended use.

In the FIGS. 1, 5 and 7 is particularly clearly visible that the jet regulator 1 carries on the upstream side of the housing of its jet regulator housing 2 a detachable sieve 18 held detachably there. This attachment screen 18 holds back such dirt particles that may still be carried along in the inflowing water and that could impair the function of the jet regulator 1 shown here.

Claims (16)

1. Flow regulator (1) having a flow regulator housing (2) which, in its housing interior, has a flow dispersing device (3) with a plurality of though-flow holes (30) for dispersing the inflowing water stream into a corresponding number of individual flows and at least one grid and/or mesh structure (6, 7, 15) spaced apart therefrom in the flow direction, wherein, in the partial housing region disposed between the flow dispersing device (3) and the adjacent grid and/or mesh structure (6), a plurality of pins (13, 14) are provided being oriented in the flow direction and spaced apart from one another, which pins (13, 14) are disposed laterally outside the projection of the through-flow holes (30), which is oriented in the through-flow direction, characterised in that the flow regulator housing (2) has a non-round housing cross-section with a housing width which is larger than the housing depth, that a plurality of rows of parallel pins (13, 14) are provided and that the pins (13, 14) extend substantially over the distance between the flow dispersing device (3) and the adjacent grid and/or mesh structure (6) and are each provided as an evaporation surface which is disposed outside the region directly sprayed by the individual flows but which can be wetted by the water flowing through the flow regulator housing (2).
2. Flow regulator as claimed in claim 1, characterised in that individual flows coming from the flow dispersing device (3) each flow directly against a crossing node (30) of the webs (10) of the grid and/or mesh structure (6, 7), which cross each other at crossing nodes (30), and that for this purpose the projection, oriented in the through-flow direction, of preferably at least more than half the through-flow holes (30) is oriented in each case towards a crossing node (11).
3. Flow regulator as claimed in claim 1 or 2, characterised in that the ratio of the height h to the diagonal d of the pins (13,14) is greater than 1.5, preferably greater than 2.0 and particularly greater than 2.5.
4. Flow regulator as claimed in any one of claims 1 to 3, characterised in that each pin (13, 14) has a total surface area of greater than 5 mm², preferably greater than 7 mm² and particularly greater than 9 mm².
5. Flow regulator as claimed in any one of claims 1 to 4, characterised in that the pins (13, 14) are integrally formed on the out-flow side of the flow dispersing device (3) and/or on the inflow-side of the adjacent grid and/or mesh structure (6).
6. Flow regulator as claimed in any one of claims 1 to 5, characterised in that the at least one grid and/or mesh structure (6, 7, 15) has a plurality of webs (10) oriented transverse to the flow direction and defining through-flow openings between them.
7. Flow regulator as claimed in any one of claims 1 to 6, characterised in that the free pin ends of the pins (13, 14) point in the direction opposite to the flow direction.
8. Flow regulator as claimed in any one of claims 1 to 7, characterised in that at least one pin (13, 14) has a non-round, preferably polygonal and particularly cross-shaped pin cross-section.
9. Flow regulator as claimed in any one of claims 1 to 8, characterised in that the pins (13, 14) are integrally formed as one piece on the webs (10) supporting them.
10. Flow regulator as claimed in any one of claims 1 to 9, characterised in that the webs (10) form a through-flow plane oriented transverse and preferably at a right angle to the flow direction.
11. Flow regulator as claimed in any one of claims 1 to 10, characterised in that the webs (10) are disposed in the manner of a grid or mesh with respect to one another and crossing at crossing nodes (11).
12. Flow regulator as claimed in any one of claims 1 to 11, characterised in that the webs supporting the pins (13, 14) form the inflow-side through-flow plane of the flow regulating device (5) and are preferably connected directly downstream of a flow dispersing device (3) in the flow direction.
13. Flow regulator as claimed in any one of claims 1 to 12, characterised in that the flow regulating device (5) has a plurality of insert parts (6, 7) which are formed in the manner of a grid and/or mesh and have webs (10) crossing at crossing nodes (11).
14. Flow regulator as claimed in any one of claims 1 to 13, characterised in that the preferably aerated flow regulator (1) has an inflow-side flow disperser (3) and a flow regulating device (5) connected downstream on the outflow-side and that a flow rectifier (15) is possibly connected downstream of the flow regulating device (5) on the outflow side.
15. Flow regulator as claimed in any one of claims 1 to 14, characterised in that the pins (13) of the outer pin rows preferably have a larger longitudinal extension than the pins (14) of the inner pin rows.
16. Flow regulator as claimed in any one of claims 1 to 15 characterised in that a plurality of rows of parallel pins (13, 14) are provided and that the pins (13) of the outer pin rows preferably have a larger longitudinal extension and/or are at a greater distance with respect to one another than the pins (14) of the inner pin rows.

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