EP3305412A1 - Spray jet generating device - Google Patents

Spray jet generating device Download PDF

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Publication number
EP3305412A1
EP3305412A1 EP17194704.7A EP17194704A EP3305412A1 EP 3305412 A1 EP3305412 A1 EP 3305412A1 EP 17194704 A EP17194704 A EP 17194704A EP 3305412 A1 EP3305412 A1 EP 3305412A1
Authority
EP
European Patent Office
Prior art keywords
fluid outlet
fluid
jet
opening
generating device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17194704.7A
Other languages
German (de)
French (fr)
Other versions
EP3305412B1 (en
Inventor
Jochen Armbruster
Sebastian Steiert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hansgrohe SE
Original Assignee
Hansgrohe SE
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Filing date
Publication date
Application filed by Hansgrohe SE filed Critical Hansgrohe SE
Publication of EP3305412A1 publication Critical patent/EP3305412A1/en
Application granted granted Critical
Publication of EP3305412B1 publication Critical patent/EP3305412B1/en
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/52—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles
    • B05B15/528—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles by resilient deformation of the nozzle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/18—Roses; Shower heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/18—Roses; Shower heads
    • B05B1/185—Roses; Shower heads characterised by their outlet element; Mounting arrangements therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3006—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being actuated by the pressure of the fluid to be sprayed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/32—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening
    • B05B1/323—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening the valve member being actuated by the pressure of the fluid to be sprayed
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/08—Jet regulators or jet guides, e.g. anti-splash devices

Definitions

  • the invention relates to an effervescent jet generating device having a effervescent jet disc which has at least one jet disc opening and a fluid chamber on the outlet side, and a fluid outlet element arranged on the at least one jet disc opening and movable in an axial main direction component which has a movable valve body with a fluid outlet opening opening out of the fluid chamber is released depending on a fluid pressure in the fluid chamber in a release position of the fluid outlet element and shut off in a shut-off position of the fluid outlet element.
  • axial main direction component of the movement of the fluid outlet element is to be understood that the component of this movement in an axial direction is greater than perpendicular to it.
  • the axial direction of the movable fluid outlet element may in particular be parallel to a longitudinal axis of the fluid outlet opening and / or to a jet direction of a fluid emerging from its fluid outlet opening and / or an axial direction of the effervescent jet disc.
  • the effervescent jet generating device can be used, in particular, for a sanitary shower head to which a fluid, for example water, can be supplied via a supply line, which then passes into the fluid chamber and from there into the one or more fluid outlet openings and exits from it or the same with the formation of an effervescent jet ,
  • a fluid for example water
  • Such devices for generating a shower jet are used in particular in sanitary shower heads, such as hand showers, overhead showers and body sprays of shower facilities.
  • EP 1 700 636 A2 discloses a shower head with a effervescent spray generating device of the type mentioned, in which each jet disc opening is associated with a valve element in the form of a curved, at least one incision membrane portion which is axially movable and bendable by a pending water pressure, whereby a closed in the non-pressurized state water outlet is provided ,
  • the invention is based on the technical problem of providing an effervescent jet generating device of the type mentioned above, which reliably prevents unwanted dripping, is relatively easy to manufacture and functionally reliable, and an outlet cross-section which is largely uninfluenced by the fluid pressure in the fluid chamber having for the fluid outlet opening.
  • the movable valve body cooperates with an immovable valve seat, which releases the fluid outlet opening in the release position of the fluid outlet element and blocks it in a shut-off position of the fluid outlet element.
  • the effervescent jet generating device according to the invention can reliably prevent unwanted dripping and is relatively easy to manufacture and functionally reliable. Furthermore, the outlet cross section of the fluid outlet opening is largely uninfluenced by the fluid pressure in the fluid chamber.
  • the jet disk can be made in one piece or composed of several components, which can consist of different materials, in particular an elastic material and / or a plastic and / or a metal.
  • the jet disc may comprise a rubber plate or rubber mat and a metal and / or hard plastic disc having corresponding jet disc openings, wherein the rubber plate or rubber mat from the inside of the Fluid chamber is applied to the metal or hard plastic disk, so that the corresponding jet disk openings of the rubber plate or rubber mat and the metal and / or hard plastic disc are aligned with each other.
  • the possible material combinations of rubber plate or rubber mat and the metal and / or hard plastic disc are advantageous in terms of increased freedom of design, in particular in the design of the spray jet generating device.
  • the jet disk opening can be designed, for example, as a counterbore. The geometry of the countersinking of the counterbore can help to receive and / or support and / or to encompass the fluid exit element arranged in the jet disk opening.
  • the blocking of the fluid outlet opening can be accomplished by the immovable valve seat in particular by the fact that the movable valve body rests in the shut-off position with its fluid outlet opening against him. In the release position of the valve body, however, the fluid outlet opening can be spaced from the immovable valve seat and thereby released.
  • the fluid outlet element or its valve body is designed to assume the releasing position as soon as the fluid pressure in the fluid chamber is greater than a previously defined limit pressure.
  • the previously defined limit pressure may, for example, be between 0.2 bar and 0.35 bar, in particular between 0.24 bar and 0.26 bar. As long as the limit pressure is not reached, the fluid outlet opening remains shut off.
  • the fluid outlet element or the movable valve body is elastically elastic, e.g. is biased by appropriate shaping in the direction of the shut-off and is pushed out of this by the fluid pressure in the fluid chamber in the release position. If the fluid pressure in the fluid chamber drops, e.g. under the mentioned limit pressure, the fluid outlet element or the movable valve body automatically returns to the shut-off position.
  • the fluid chamber is limited on one of the jet disk opposite side by an immovable valve seat having intermediate plate or housing plate.
  • an immovable valve seat having intermediate plate or housing plate.
  • the immovable valve seat as a separate component on the intermediate plate or the housing plate attached.
  • the intermediate plate or the housing plate can fulfill additional functions if required, it can serve as a mounting plate for a single or multi-part jet disk, for example.
  • the movable valve body is in the release position against a valve contact surface of the jet disk.
  • the valve contact surface of the jet disc allows limiting the movement of the movable valve body. So it is e.g. possible that the release position of the fluid outlet element is predetermined by the valve contact surface.
  • the fluid outlet element extends with its fluid outlet opening in the releasing and / or shut-off position through the jet disk opening.
  • the fluid outlet opening and / or the movable valve body are made of an elastomer, in particular of a silicone having a Shore hardness between fifty and seventy. If limescale constricts the fluid outlet opening or even clogs, they can be removed in a conventional manner that the user by rubbing or the like. A force exerted on the fluid outlet opening force exerts on selbige, whereby the lime deposits are brought to flake.
  • the valve seat has a valve seat projection, which protrudes into the fluid outlet opening when the fluid outlet opening is shut off.
  • valve seat projection By projecting into the fluid outlet opening valve seat projection, for example, the formation of calcium deposits can be counteracted by any limescale deposits are replaced by the protruding valve seat projection when moving the fluid outlet element between the closed position and the released position.
  • the protruding valve seat projection for the interaction of the movable valve body with the immovable valve seat may be advantageous, in particular for the tight shut-off of the fluid outlet opening. This is preferably supported by a corresponding negative shape of the valve seat projection or the immovable valve seat with respect to the shape of the fluid outlet opening or the movable valve body.
  • the fluid outlet opening has a fluid-pressure-independent dimensionally stable and / or circular-cylindrical and / or conical geometry.
  • a dimensionally stable i.
  • a geometry of the fluid outlet opening which is largely independent of the fluid pressures occurring during operation ensures that the characteristic of a spray jet produced to a very high degree is independent of the fluid pressure in the fluid chamber when the spray jet generating device is used as intended. Because the fluid outlet opening then always has a substantially constant passage cross-sectional area and cross-sectional shape.
  • the fluid outlet opening is formed by an outlet nozzle with a nozzle longitudinal axis, which is parallel to a local surface normal of an outer side of the jet disk.
  • the nozzle longitudinal axis can in the case of rotationally symmetrical fluid outlet openings, for. be the axis of rotation of the fluid outlet opening.
  • the fluid outlet element on an elastomeric ring membrane, which surrounds the movable valve body and carries.
  • the elastomeric ring membrane is e.g. on the jet disk, so that the fluid outlet element is arranged in the associated jet disk opening.
  • the elastomeric ring membrane may facilitate or facilitate the placement of the fluid exit element in the jet disk opening.
  • the fluid outlet element is made in one piece. This allows simplification and cost reduction e.g. in the production of the fluid outlet element and / or the assembly of the spray jet generating device.
  • the jet disk has a plurality of jet disk openings and associated fluid outlet elements. Furthermore, the jet disc has a one-piece elastomer plate on which the plurality of fluid outlet elements is formed. For example, any number between ten and two hundred jet disk openings can be provided. If the fluid outlet elements have elastomer ring diaphragms, it is advantageous to mold the fluid outlet elements with the elastomer ring diaphragm on the elastomer plate.
  • the one-piece design of elastomer plate and fluid outlet elements can both in the production be advantageous as well for the assembly, since a component reduction and a simplified handling can be achieved.
  • the jet disk may comprise a single or a plurality of one-piece elastomer plates, on each of which a plurality of fluid outlet elements is formed. These one-piece elastomer plates may differ, for example, in the geometric shape of their arranged fluid outlet openings, whereby the effervescent jet generating device has areas that can produce different effervescent jets.
  • the effervescent jet generating device shown is integrated into a sanitary shower head in order to produce a water spray jet whose jet shape is largely independent of the pressure of the supplied water.
  • the shower head supplied water is introduced into a fluid chamber 3, which is the exit side of a here exemplary multi-part jet disk 1 of the effervescent jet generating device limited.
  • the jet disk 1 has a plurality of preferably between ten and two hundred, for example thirty, jet disk openings 2, through which the water can be conducted from the fluid chamber 3 to the outside.
  • the multi-part jet disk 1 comprises an elastomer plate 13, e.g. of a silicone material having a Shore hardness of preferably between fifty and seventy, e.g. sixty, and a metal plate 14, wherein the elastomeric plate 13 fluid chamber side abuts against the metal plate 14. Furthermore, a housing plate 8 of the shower head of the jet disk 1 opposite and the fluid chamber 3 is arranged delimiting. In this case, the elastomer plate 13 is held with its outer edge region between the housing plate 8 and the metal plate 14, the fluid chamber 3 sealingly.
  • a plurality of elastomeric annular membranes 12 is formed, each surrounded and carry a movable fluid outlet element 4.
  • the fluid outlet element 4 is connected via the elastomeric annular membrane 12 with the elastomer plate 13 and held on this.
  • the in Fig. 1 to 4 shown elastomer plate 13 integrally with the fluid outlet element 4 and the elastomeric ring membrane 12 executed.
  • the elastomer plate 13 is applied to the metal plate 14 such that a movable fluid outlet element 4 is arranged at each jet disk opening 2.
  • the respective fluid outlet element 4 has a fluid outlet opening 5, which opens out of the fluid chamber 3 and is designed in the manner of an outlet nozzle.
  • the fluid outlet opening 5 or the outlet nozzle has a conical geometry coming from the fluid chamber 3 on the inlet side, followed by a circular-cylindrical geometry as the end section, in which the fluid outlet opening 5 tapers to an outlet diameter which is typically in the range of 0, for example. 6 mm to 1.2 mm, in particular from 0.85 mm to 0.95 mm.
  • the fluid outlet opening 5 or outlet nozzle has a geometry which is fluid-pressure-independent and dimensionally stable when the spray-jet generating device is used as intended.
  • the axis of symmetry of the fluid outlet opening 5 is a nozzle longitudinal axis 11, the at the same time is an axial main direction component of the movement of the movable fluid outlet element 4.
  • the nozzle longitudinal axis 11 also corresponds to a local surface normal of an outside of the jet disk 1 at the relevant point.
  • the fluid outlet element 4 has a movable valve body 6, on which the fluid outlet opening 5 is arranged, wherein the movable valve body 6 is a rotationally symmetrical element in the manner of a disc spring.
  • the movable valve body 6 is responsible for the movement of the fluid outlet element 4 and thus also for the movement of the fluid outlet opening 5.
  • the fluid outlet element 4 is switched between a fluid outlet opening 5 releasing or shut-off position, wherein the movable valve body 6 cooperates with a stationary valve seat 7.
  • the cause of this movement is a fluid pressure prevailing in the fluid chamber 3, which is generated by the supplied water.
  • the fluid pressure acts on the movable valve body 6, and as soon as a predetermined limit pressure between 0.2 bar to 0.35 bar, in particular between 0.24 bar to 0.26 bar, is exceeded in the fluid chamber, the valve body 6 and thus the Fluid outlet element 4 with axial main direction component moves by the pressure from a shut-off position to a release position in which the valve body 6, the fluid outlet opening 5 releases. If the fluid pressure falls below the predetermined limit pressure, the valve body 6 automatically moves back into its original, the fluid outlet opening 5 shut-off position.
  • Fig. 1 the shut-off position of the movable valve body 6 is shown.
  • the valve body 6 cooperates with the immovable valve seat 7 to the effect that the valve body 6 abuts against the valve seat 7 or presses, whereby the valve seat 7, the fluid outlet opening 5 shuts fluid-tight. Due to the tight fit of the movable valve body 6 against the immovable valve seat 7 no water can leave the fluid chamber 3 through the fluid outlet opening 5, the shower head is thus secured against dripping.
  • the in Fig. 1 to 4 shown immovable valve seat 7 is integral with the housing plate 8 of the shower head and has a flat seat surface against which the movable valve body 6 abuts.
  • the immovable valve seat 7 is formed by a plateau-like projection 15 of the housing plate 8.
  • the distance between the jet disk 1 and the housing plate 8 without consideration of the plateaus 15 preferably at least 2 mm. This distance may be referred to as the height of the fluid chamber 3.
  • the fluid outlet opening 5 extends in shut-off position of the movable valve body 6 through the jet disk opening 2 and on the outlet side has a projection with respect to the metal plate 14.
  • This projection of the fluid outlet opening 5 may be, for example, in the range of 1 mm to 3 mm, for example about 2 mm.
  • the supernatant is preferably between 3 mm and 7 mm, for example about 5 mm.
  • the respective fluid outlet element 4 or its valve body 6 has a monostable design, ie a shape such that the fluid outlet element 4 or its valve body 6 has exactly one stable position, which in the present case corresponds to the shut-off position Fig. 1 given is. From this, the fluid outlet element 4 and its valve body 6 at pending in the fluid chamber fluid pressure by the stroke length in the release position according to Fig. 2 advances if and as soon as the fluid pressure exceeds an associated limit pressure value of eg 0.25 bar to 0.35 bar. In the release position, the valve body 6 is no longer against the immovable valve seat 7, and the water can leave through the respective fluid outlet opening 5 through the fluid chamber 3 to form the desired shower spray.
  • a monostable design ie a shape such that the fluid outlet element 4 or its valve body 6 has exactly one stable position, which in the present case corresponds to the shut-off position Fig. 1 given is.
  • the fluid outlet element 4 or its valve body 6 automatically returns to the shut-off position by elastic restoring force, so that water dripping off of the fluid outlet opening 5 is reliably prevented becomes.
  • the jet disk opening 2, on which the fluid outlet element 4 shown is arranged as a counterbore in the metal plate 14th executed, wherein the countersinking a geometry, in particular a valve bearing surface 9, which supports the movable valve body 6 in the releasing position and limited in its movement.
  • the counterbore counterbore is preferably shaped so as not to have acute angles.
  • Fig. 5 to 8 is a variant of the effervescent jet generating device of Fig. 1 to 4 are shown, for better understanding of identical and functionally equivalent elements, the same reference numerals are used and to that extent also to the above comments on the embodiment of Fig. 1 to 4 can be referenced so that below essentially only addresses the existing differences, which are here specifically in the design of the immovable valve seat 7.
  • the immovable valve seat 7 has a valve seat projection 10 which protrudes into the fluid outlet opening 5 when the fluid outlet opening 5 is shut off and does not protrude into the fluid outlet opening 5 when the fluid outlet opening 5 is released.
  • lime deposits on the fluid outlet opening 5 can be counteracted by being detached from the fluid outlet opening 5 by the valve seat projection 10 when the fluid outlet element 4 moves between the releasing position and the blocking position.
  • the immovable valve seat 7 in the variant of Fig. 5 to 8 a shape conformed to that of the movable valve body 6.
  • the immovable valve seat 7 has an annular recess or recess in the form of a negative shape of the voltage applied in the shut-off movable valve body 6. This increases the contact area between the movable valve body 6 and the immovable valve seat 7 in the Absperrposition compared with the flat seat in the Variant of Fig. 1 to 4 and contributes to a centering of the pressing against the valve seat 7 in the shut-off position of the valve body 6 at. This enlarged contact surface and the centered position of the valve body 6 advantageously assist the secure sealing of the fluid outlet opening 5.
  • the immovable valve seat 7 is in the form of a preferably frustoconical Plugged, which closes the fluid outlet opening 5 in the shut-off position.
  • the plug-shaped immovable valve seat 7 protrudes into the fluid outlet opening 5.
  • an intermediate plate instead of the housing plate 8 shown on the immovable valve seat.
  • This intermediate plate is preferably integrated in a shower head and acts as a boundary of the fluid chamber on the side opposite the jet disc.
  • the invention provides a effervescent jet generating device that reliably prevents the unwanted dripping, is relatively easy to produce and reliable. Furthermore, the outlet cross section of the fluid outlet opening is largely uninfluenced by the fluid pressure in the fluid chamber. The invention is particularly useful in sanitary engineering, but also in other applications where there is a need to produce a shower jet functionally reliable and without dripping.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Nozzles (AREA)
  • Bathtubs, Showers, And Their Attachments (AREA)

Abstract

Die Erfindung betrifft eine Brausestrahlerzeugungsvorrichtung für einen sanitären Brausekopf, die eine Strahlscheibe (1), die mindestens eine Strahlscheibenöffnung (2) aufweist und eine Fluidkammer (3) austrittsseitig begrenzt, und ein an der mindestens einen Strahlscheibenöffnung angeordnetes und in einer axialen Hauptrichtungskomponente bewegliches Fluidaustrittselement (4) umfasst, das einen beweglichen Ventilkörper (6) mit einer aus der Fluidkammer ausmündenden Fluidaustrittsöffnung (5) aufweist, die abhängig von einem Fluiddruck in der Fluidkammer in einer Freigabeposition des Fluidaustrittselements freigegeben und in einer Absperrposition des Fluidaustrittselements abgesperrt ist. Erfindungsgemäß wirkt der bewegliche Ventilkörper (6) mit einem unbeweglichen Ventilsitz (7) zusammen, der die Fluidaustrittsöffnung (5) in der Freigabeposition des Fluidaustrittselements freigibt und in einer Absperrposition des Fluidaustrittselements absperrt.

Figure imgaf001
The invention relates to a shower spray jet device for a sanitary shower head which comprises a jet disk (1) which has at least one jet disk opening (2) and a fluid chamber (3) on the outlet side, and a fluid outlet element (FIG. 2) which is arranged on the at least one jet disk opening and movable in an axial main direction component (US Pat. 4), which has a movable valve body (6) with a fluid outlet opening (5) opening out of the fluid chamber, which is released as a function of a fluid pressure in the fluid chamber in a release position of the fluid outlet element and shut off in a shut-off position of the fluid outlet element. According to the invention, the movable valve body (6) cooperates with an immovable valve seat (7) which releases the fluid outlet opening (5) in the release position of the fluid outlet element and blocks it in a shut-off position of the fluid outlet element.
Figure imgaf001

Description

Die Erfindung betrifft eine Brausestrahlerzeugungsvorrichtung mit einer Brausestrahlscheibe, die mindestens eine StrahlscheibenÜffnung aufweist und eine Fluidkammer austrittsseitig begrenzt, und einem an der mindestens einen StrahlscheibenÜffnung angeordneten und in einer axialen Hauptrichtungskomponente beweglichen Fluidaustrittselement, das einen beweglichen VentilkÜrper mit einer aus der Fluidkammer ausmßndenden FluidaustrittsÜffnung aufweist, die abhängig von einem Fluiddruck in der Fluidkammer in einer Freigabeposition des Fluidaustrittselements freigegeben und in einer Absperrposition des Fluidaustrittselements abgesperrt ist.The invention relates to an effervescent jet generating device having a effervescent jet disc which has at least one jet disc opening and a fluid chamber on the outlet side, and a fluid outlet element arranged on the at least one jet disc opening and movable in an axial main direction component which has a movable valve body with a fluid outlet opening opening out of the fluid chamber is released depending on a fluid pressure in the fluid chamber in a release position of the fluid outlet element and shut off in a shut-off position of the fluid outlet element.

Unter axialer Hauptrichtungskomponente der Bewegung des Fluidaustrittselements ist hierbei zu verstehen, dass die Komponente dieser Bewegung in einer axialen Richtung größer ist als senkrecht dazu. Die Axialrichtung des beweglichen Fluidaustrittselements kann insbesondere parallel zu einer Längsachse der Fluidaustrittsöffnung und/oder zu einer Strahlrichtung eines aus seiner Fluidaustrittsöffnung austretenden Fluid und/oder einer Axialrichtung der Brausestrahlscheibe sein. Der bei bestimmungsgemäßem Gebrauch der Brausestrahlerzeugungsvorrichtung in der Fluidkammer herrschende Fluiddruck sorgt dafür, dass der bewegliche Ventilkörper seine Freigabeposition einnimmt und die Fluidaustrittsöffnung freigegeben ist, während der Ventilkörper im drucklosen Zustand der Fluidkammer seine Absperrposition einnimmt und die Fluidaustrittsöffnung abgesperrt ist. Mit einer solchen Anordnung kann einem unerwünschten Nachtropfen einer entsprechend ausgerüsteten Brause nach Absperren der Wasserzufuhr begegnet werden.By axial main direction component of the movement of the fluid outlet element is to be understood that the component of this movement in an axial direction is greater than perpendicular to it. The axial direction of the movable fluid outlet element may in particular be parallel to a longitudinal axis of the fluid outlet opening and / or to a jet direction of a fluid emerging from its fluid outlet opening and / or an axial direction of the effervescent jet disc. The prevailing under normal use of the spray jet generating device in the fluid chamber fluid pressure ensures that the movable valve body assumes its release position and the fluid outlet opening is released, while the valve body assumes its shut-off position in the pressureless state of the fluid chamber and the fluid outlet opening is shut off. With such an arrangement, an undesirable dripping of a suitably equipped shower after blocking the water supply can be countered.

Die Brausestrahlerzeugungsvorrichtung ist insbesondere fßr einen sanitären Brausekopf verwendbar, dem ßber eine Zuleitung ein Fluid, z.B. Wasser, zugefßhrt werden kann, das dann in die Fluidkammer und von dort in die eine oder mehreren FluidaustrittsÜffnungen gelangt und unter Bildung eines Brausestrahls aus dieser bzw. diesen austritt. Derartige Vorrichtungen zur Erzeugung eines Brausestrahls werden insbesondere in sanitären BrausekÜpfen eingesetzt, wie z.B. Handbrausen, Kopfbrausen und Seitenbrausen von Duscheinrichtungen.The effervescent jet generating device can be used, in particular, for a sanitary shower head to which a fluid, for example water, can be supplied via a supply line, which then passes into the fluid chamber and from there into the one or more fluid outlet openings and exits from it or the same with the formation of an effervescent jet , Such devices for generating a shower jet are used in particular in sanitary shower heads, such as hand showers, overhead showers and body sprays of shower facilities.

Die Offenlegungsschrift EP 1 700 636 A2 offenbart einen Brausekopf mit einer Brausestrahlerzeugungsvorrichtung der eingangs genannten Art, bei der jeder StrahlscheibenĂśffnung ein Ventilelement in Form eines gewĂślbten, mindestens einen Einschnitt aufweisenden Membranabschnittes zugeordnet ist, der durch einen anstehenden Wasserdruck axial bewegbar und aufbiegbar ist, wodurch eine im drucklosen Zustand geschlossene WasseraustrittsĂśffnung bereitgestellt ist.The publication EP 1 700 636 A2 discloses a shower head with a effervescent spray generating device of the type mentioned, in which each jet disc opening is associated with a valve element in the form of a curved, at least one incision membrane portion which is axially movable and bendable by a pending water pressure, whereby a closed in the non-pressurized state water outlet is provided ,

Der Erfindung liegt das technische Problem zugrunde, eine Brausestrahlerzeugungsvorrichtung der eingangs genannten Art bereitzustellen, die gegenßber dem oben erläuterten Stand der Technik verbessert ist und insbesondere unerwßnschtes Nachtropfen zuverlässig verhindert, relativ einfach herstellbar und funktionssicher ist und dabei einen vom Fluiddruck in der Fluidkammer weitestgehend unbeeinflussten Austrittsquerschnitt fßr die FluidaustrittsÜffnung aufweist.The invention is based on the technical problem of providing an effervescent jet generating device of the type mentioned above, which reliably prevents unwanted dripping, is relatively easy to manufacture and functionally reliable, and an outlet cross-section which is largely uninfluenced by the fluid pressure in the fluid chamber having for the fluid outlet opening.

Die Erfindung lÜst dieses Problem durch die Bereitstellung einer Brausestrahlerzeugungsvorrichtung mit den Merkmalen des Anspruchs 1. Vorteilhafte sowie bevorzugte Ausgestaltungen der Erfindung sind Gegenstand der weiteren Ansprßche, deren Wortlaut hiermit durch Verweis vollumfänglich in die Beschreibung aufgenommen wird.The invention solves this problem by providing a effervescent jet generating device with the features of claim 1. Advantageous and preferred embodiments of the invention are the subject of the other claims, the wording of which is hereby incorporated by reference in its entirety in the description.

Bei der erfindungsgemäßen Brausestrahlerzeugungsvorrichtung, die insbesondere für einen sanitären Brausekopf einsetzbar ist, wirkt der bewegliche Ventilkörper mit einem unbeweglichen Ventilsitz zusammen, der die Fluidaustrittsöffnung in der Freigabeposition des Fluidaustrittselements freigibt und in einer Absperrposition des Fluidaustrittselements absperrt. Die erfindungsgemäße Brausestrahlerzeugungsvorrichtung kann unerwünschtes Nachtropfen zuverlässig verhindern und sie ist relativ einfach herstellbar und funktionssicher. Des Weiteren ist der Austrittsquerschnitt der Fluidaustrittsöffnung vom Fluiddruck in der Fluidkammer weitestgehend unbeeinflusst.In the effervescent jet generating device according to the invention, which can be used in particular for a sanitary showerhead, the movable valve body cooperates with an immovable valve seat, which releases the fluid outlet opening in the release position of the fluid outlet element and blocks it in a shut-off position of the fluid outlet element. The effervescent jet generating device according to the invention can reliably prevent unwanted dripping and is relatively easy to manufacture and functionally reliable. Furthermore, the outlet cross section of the fluid outlet opening is largely uninfluenced by the fluid pressure in the fluid chamber.

Die Strahlscheibe kann einteilig ausgefĂźhrt oder aus mehreren Bauteilen zusammengesetzt sein, die aus unterschiedlichen Materialien, insbesondere einem elastischem Material und/oder einem Kunststoff und/oder einem Metall, bestehen kĂśnnen. So kann zum Beispiel die Strahlscheibe eine Gummiplatte bzw. Gummimatte und eine Metall- und/oder Hartkunststoffscheibe aufweisen, die Ăźber korrespondierende StrahlscheibenĂśffnungen verfĂźgen, wobei die Gummiplatte bzw. Gummimatte von der Innenseite der Fluidkammer an die Metall- oder Hartkunststoffscheibe angelegt ist, so dass die korrespondierenden StrahlscheibenĂśffnungen der Gummiplatte bzw. Gummimatte und der Metall- und/oder Hartkunststoffscheibe zueinander ausgerichtet sind. Die mĂśglichen Materialkombinationen von Gummiplatte bzw. Gummimatte und der Metall- und/oder Hartkunststoffscheibe sind bezĂźglich einer erhĂśhten Gestaltungsfreiheit, insbesondere im Design der Brausestrahlerzeugungsvorrichtung vorteilhaft. Die StrahlscheibenĂśffnung kann z.B. als Senkbohrung ausgefĂźhrt sein. Die Geometrie der Senkung der Senkbohrung kann dazu beitragen, das in der StrahlscheibenĂśffnung angeordnete Fluidaustrittselement aufzunehmen und/oder abzustĂźtzen und/oder zu umfassen.The jet disk can be made in one piece or composed of several components, which can consist of different materials, in particular an elastic material and / or a plastic and / or a metal. Thus, for example, the jet disc may comprise a rubber plate or rubber mat and a metal and / or hard plastic disc having corresponding jet disc openings, wherein the rubber plate or rubber mat from the inside of the Fluid chamber is applied to the metal or hard plastic disk, so that the corresponding jet disk openings of the rubber plate or rubber mat and the metal and / or hard plastic disc are aligned with each other. The possible material combinations of rubber plate or rubber mat and the metal and / or hard plastic disc are advantageous in terms of increased freedom of design, in particular in the design of the spray jet generating device. The jet disk opening can be designed, for example, as a counterbore. The geometry of the countersinking of the counterbore can help to receive and / or support and / or to encompass the fluid exit element arranged in the jet disk opening.

Das Absperren der Fluidaustrittsöffnung, die vorzugsweise als eine umfangseitig geschlossene Öffnung ausgebildet ist, kann von dem unbeweglichen Ventilsitz insbesondere dadurch bewerkstelligt werden, dass der bewegliche Ventilkörper in der Absperrposition mit seiner Fluidaustrittsöffnung gegen ihn anliegt. In der Freigabeposition des Ventilkörpers kann die Fluidaustrittsöffnung hingegen vom unbeweglichen Ventilsitz beabstandet und dadurch freigegeben sein. In entsprechenden Realisierungen der Erfindung ist das Fluidaustrittselement bzw. sein Ventilkörper dazu ausgebildet, die freigebende Stellung einzunehmen, sobald der Fluiddruck in der Fluidkammer größer als ein zuvor festgelegter Grenzdruck ist. Der zuvor festgelegte Grenzdruck kann beispielsweise zwischen 0,2 bar bis 0,35 bar liegen, insbesondere zwischen 0,24 bar bis 0,26 bar. Solange der Grenzdruck nicht erreicht ist, bleibt die Fluidaustrittsöffnung abgesperrt.The blocking of the fluid outlet opening, which is preferably designed as a circumferentially closed opening, can be accomplished by the immovable valve seat in particular by the fact that the movable valve body rests in the shut-off position with its fluid outlet opening against him. In the release position of the valve body, however, the fluid outlet opening can be spaced from the immovable valve seat and thereby released. In corresponding implementations of the invention, the fluid outlet element or its valve body is designed to assume the releasing position as soon as the fluid pressure in the fluid chamber is greater than a previously defined limit pressure. The previously defined limit pressure may, for example, be between 0.2 bar and 0.35 bar, in particular between 0.24 bar and 0.26 bar. As long as the limit pressure is not reached, the fluid outlet opening remains shut off.

Vorteilhaft kann vorgesehen sein, dass das Fluidaustrittselement bzw. der bewegliche VentilkÜrper elastisch z.B. durch entsprechende Formgebung in Richtung der Absperrposition vorgespannt ist und aus dieser durch den Fluiddruck in der Fluidkammer in die Freigabeposition gedrßckt wird. Fällt der Fluiddruck in der Fluidkammer ab, z.B. unter den erwähnten Grenzdruck, kehrt das Fluidaustrittselement bzw. der bewegliche VentilkÜrper selbsttätig in die Absperrposition zurßck.Advantageously, it can be provided that the fluid outlet element or the movable valve body is elastically elastic, e.g. is biased by appropriate shaping in the direction of the shut-off and is pushed out of this by the fluid pressure in the fluid chamber in the release position. If the fluid pressure in the fluid chamber drops, e.g. under the mentioned limit pressure, the fluid outlet element or the movable valve body automatically returns to the shut-off position.

In einer Ausgestaltung der Erfindung ist die Fluidkammer auf einer der Strahlscheibe gegenßberliegenden Seite durch eine den unbeweglichen Ventilsitz aufweisende Zwischenplatte oder Gehäuseplatte begrenzt. Dadurch kann eine Bauteilreduktion erreicht werden. Alternativ kann der unbewegliche Ventilsitz als eigenes Bauteil an der Zwischenplatte oder der Gehäuseplatte befestigt sein. Die Zwischenplatte oder die Gehäuseplatte kann bei Bedarf zusätzliche Funktionen erfßllt, so kann sie z.B. als Montageplatte fßr eine ein- oder mehrteilige Strahlscheibe dienen.In one embodiment of the invention, the fluid chamber is limited on one of the jet disk opposite side by an immovable valve seat having intermediate plate or housing plate. As a result, a component reduction can be achieved. Alternatively, the immovable valve seat as a separate component on the intermediate plate or the housing plate attached. The intermediate plate or the housing plate can fulfill additional functions if required, it can serve as a mounting plate for a single or multi-part jet disk, for example.

In einer Ausgestaltung der Erfindung liegt der bewegliche VentilkÜrper in der Freigabeposition gegen eine Ventilanlagefläche der Strahlscheibe an. Die Ventilanlagefläche der Strahlscheibe ermÜglicht eine Begrenzung der Bewegung des beweglichen VentilkÜrpers. So ist es z.B. mÜglich, dass die Freigabeposition des Fluidaustrittselements durch die Ventilanlagefläche vorgegeben wird.In one embodiment of the invention, the movable valve body is in the release position against a valve contact surface of the jet disk. The valve contact surface of the jet disc allows limiting the movement of the movable valve body. So it is e.g. possible that the release position of the fluid outlet element is predetermined by the valve contact surface.

In einer Ausgestaltung der Erfindung erstreckt sich das Fluidaustrittselement mit seiner FluidaustrittsÜffnung in der freigebenden und/oder absperrenden Stellung durch die StrahlscheibenÜffnung hindurch. Dadurch kann z.B. die Entfernung von Kalkablagerungen erleichtert werden. Vorzugsweise sind die FluidaustrittsÜffnung und/oder der bewegliche VentilkÜrper aus einem Elastomer, insbesondere aus einem Silikon mit einer Shore-Härte zwischen fßnfzig und siebzig. Falls Kalkablagerungen die FluidaustrittsÜffnung verengen oder gar verstopfen, kÜnnen diese in an sich bekannter Weise dadurch entfernt werden, dass der Benutzer durch Rubbeln oder dgl. eine die FluidaustrittsÜffnung deformierende Kraft auf selbige ausßbt, wodurch die Kalkablagerungen zum Abplatzen gebracht werden.In one embodiment of the invention, the fluid outlet element extends with its fluid outlet opening in the releasing and / or shut-off position through the jet disk opening. Thereby, e.g. the removal of limescale be relieved. Preferably, the fluid outlet opening and / or the movable valve body are made of an elastomer, in particular of a silicone having a Shore hardness between fifty and seventy. If limescale constricts the fluid outlet opening or even clogs, they can be removed in a conventional manner that the user by rubbing or the like. A force exerted on the fluid outlet opening force exerts on selbige, whereby the lime deposits are brought to flake.

In einer Ausgestaltung der Erfindung weist der Ventilsitz einen Ventilsitzvorsprung auf, der bei abgesperrter FluidaustrittsĂśffnung in die FluidaustrittsĂśffnung hineinragt. Durch den in die FluidaustrittsĂśffnung hineinragenden Ventilsitzvorsprung kann beispielsweise der Entstehung von Kalkablagerungen entgegengewirkt werden, indem eventuelle Kalkablagerungen durch den hineinragenden Ventilsitzvorsprung beim Bewegen des Fluidaustrittselements zwischen der abgesperrten Stellung und der freigegebenen Stellung abgelĂśst werden. Des Weiteren kann der hineinragende Ventilsitzvorsprung fĂźr das Zusammenwirken des beweglichen VentilkĂśrpers mit dem unbeweglichen Ventilsitz vorteilhaft sein, insbesondere fĂźr die dichte Absperrung der FluidaustrittsĂśffnung. Dies wird vorzugsweise durch eine korrespondierende negative Form des Ventilsitzvorsprungs bzw. des unbeweglichen Ventilsitzes in Bezug auf die Form der FluidaustrittsĂśffnung bzw. des beweglichen VentilkĂśrpers unterstĂźtzt.In one embodiment of the invention, the valve seat has a valve seat projection, which protrudes into the fluid outlet opening when the fluid outlet opening is shut off. By projecting into the fluid outlet opening valve seat projection, for example, the formation of calcium deposits can be counteracted by any limescale deposits are replaced by the protruding valve seat projection when moving the fluid outlet element between the closed position and the released position. Furthermore, the protruding valve seat projection for the interaction of the movable valve body with the immovable valve seat may be advantageous, in particular for the tight shut-off of the fluid outlet opening. This is preferably supported by a corresponding negative shape of the valve seat projection or the immovable valve seat with respect to the shape of the fluid outlet opening or the movable valve body.

In einer Ausgestaltung der Erfindung weist die Fluidaustrittsöffnung eine fluiddruckunabhängig formstabile und/oder kreiszylindrische und/oder konische Geometrie auf. Eine formstabile, d.h. eine von den im Betrieb auftretenden Fluiddrücken weitgehend unabhängige Geometrie der Fluidaustrittsöffnung sorgt beispielsweise dafür, dass beim bestimmungsgemäßen Gebrauch der Brausestrahlerzeugungsvorrichtung die Charakteristik eines erzeugten Brausestrahls in sehr hohem Maß unabhängig vom Fluiddruck in der Fluidkammer ist. Denn die Fluidaustrittsöffnung hat dann stets eine im Wesentlichen konstant bleibende Durchtrittsquerschnittsfläche und Querschnittsform.In one embodiment of the invention, the fluid outlet opening has a fluid-pressure-independent dimensionally stable and / or circular-cylindrical and / or conical geometry. A dimensionally stable, i. For example, a geometry of the fluid outlet opening which is largely independent of the fluid pressures occurring during operation ensures that the characteristic of a spray jet produced to a very high degree is independent of the fluid pressure in the fluid chamber when the spray jet generating device is used as intended. Because the fluid outlet opening then always has a substantially constant passage cross-sectional area and cross-sectional shape.

In einer Ausgestaltung der Erfindung ist die Fluidaustrittsöffnung von einer Austrittsdüse mit einer Düsenlängsachse gebildet, die parallel zu einer lokalen Flächennormale einer Außenseite der Strahlscheibe ist. Die Düsenlängsachse kann im Falle von rotationssymmetrischen Fluidaustrittsöffnungen z.B. die Rotationsachse der Fluidaustrittsöffnung sein.In one embodiment of the invention, the fluid outlet opening is formed by an outlet nozzle with a nozzle longitudinal axis, which is parallel to a local surface normal of an outer side of the jet disk. The nozzle longitudinal axis can in the case of rotationally symmetrical fluid outlet openings, for. be the axis of rotation of the fluid outlet opening.

In einer Ausgestaltung der Erfindung weist das Fluidaustrittselement eine Elastomer-ringmembran auf, welche den beweglichen VentilkÜrper umgibt und trägt. Die Elastomerringmembran liegt z.B. an der Strahlscheibe an, so dass das Fluidaustrittselement in der zugehÜrigen StrahlscheibenÜffnung angeordnet ist. Die Elastomerringmembran kann die Platzierung des Fluidaustrittselements in der StrahlscheibenÜffnung vereinfachen bzw. erleichtern.In one embodiment of the invention, the fluid outlet element on an elastomeric ring membrane, which surrounds the movable valve body and carries. The elastomeric ring membrane is e.g. on the jet disk, so that the fluid outlet element is arranged in the associated jet disk opening. The elastomeric ring membrane may facilitate or facilitate the placement of the fluid exit element in the jet disk opening.

In einer Ausgestaltung der Erfindung ist das Fluidaustrittselement einteilig ausgefĂźhrt. Dies ermĂśglicht eine Vereinfachung und Kostenreduktion z.B. in der Herstellung des Fluidaustrittselements und/oder der Montage der Brausestrahlerzeugungsvorrichtung.In one embodiment of the invention, the fluid outlet element is made in one piece. This allows simplification and cost reduction e.g. in the production of the fluid outlet element and / or the assembly of the spray jet generating device.

In einer Ausgestaltung der Erfindung hat die Strahlscheibe eine Mehrzahl von StrahlscheibenĂśffnungen und zugeordneten Fluidaustrittselementen. Des Weiteren weist die Strahlscheibe eine einteilige Elastomerplatte auf, an der die Mehrzahl von Fluidaustrittselementen ausgebildet ist. Es kĂśnnen z.B. eine beliebige Anzahl zwischen zehn und zweihundert StrahlscheibenĂśffnungen vorgesehen sein. VerfĂźgen die Fluidaustrittselemente Ăźber Elastomerringmembranen, so ist es vorteilhaft, die Fluidaustrittselemente mit der Elastomerringmembran an der Elastomerplatte anzuformen. Die einteilige AusfĂźhrung von Elastomerplatte und Fluidaustrittselementen kann sowohl in der Herstellung als auch fĂźr die Montage vorteilhaft sein, da eine Bauteilreduktion und eine vereinfachte Handhabung erreicht werden. Die Strahlscheibe kann eine einzige oder eine Mehrzahl von einteiligen Elastomerplatten aufweisen, an denen jeweils eine Mehrzahl von Fluidaustrittselementen ausgebildet ist. Diese einteiligen Elastomerplatten kĂśnnen sich z.B. in der geometrischen Form ihrer angeordneten FluidaustrittsĂśffnungen unterscheiden, wodurch die Brausestrahlerzeugungsvorrichtung Bereiche aufweist, die unterschiedliche Brausestrahlen erzeugen kĂśnnen.In one embodiment of the invention, the jet disk has a plurality of jet disk openings and associated fluid outlet elements. Furthermore, the jet disc has a one-piece elastomer plate on which the plurality of fluid outlet elements is formed. For example, any number between ten and two hundred jet disk openings can be provided. If the fluid outlet elements have elastomer ring diaphragms, it is advantageous to mold the fluid outlet elements with the elastomer ring diaphragm on the elastomer plate. The one-piece design of elastomer plate and fluid outlet elements can both in the production be advantageous as well for the assembly, since a component reduction and a simplified handling can be achieved. The jet disk may comprise a single or a plurality of one-piece elastomer plates, on each of which a plurality of fluid outlet elements is formed. These one-piece elastomer plates may differ, for example, in the geometric shape of their arranged fluid outlet openings, whereby the effervescent jet generating device has areas that can produce different effervescent jets.

Vorteilhafte Ausfßhrungsformen der Erfindung sind in den Zeichnungen dargestellt und werden im Folgenden näher erläutert. Hierbei zeigen:

Fig. 1
eine ausschnittweise Schnittansicht einer Brausestrahlerzeugungsvorrichtung mit mehreren Fluidaustrittselementen in Absperrposition und ebenen Ventilsitzen,
Fig. 2
die Schnittansicht von Fig. 1 mit den Fluidaustrittselementen in Freigabeposition,
Fig. 3
eine Detailansicht eines einzelnen Fluidaustrittselements von Fig. 1,
Fig. 4
eine Detailansicht eines einzelnen Fluidaustrittselements von Fig. 2,
Fig. 5
eine Schnittansicht entsprechend Fig. 1 fĂźr eine Variante mit profilierten Ventilsitzen,
Fig. 6
eine Schnittansicht entsprechend Fig. 2 fĂźr die Variante von Fig. 5,
Fig. 7
eine Detailschnittansicht eines einzelnen Fluidaustrittselements von Fig. 5 und
Fig. 8
eine Detailansicht eines einzelnen Fluidaustrittselements von Fig. 6.
Advantageous embodiments of the invention are illustrated in the drawings and are explained in more detail below. Hereby show:
Fig. 1
a fragmentary sectional view of a spray jet generating device with a plurality of fluid outlet elements in shut-off position and flat valve seats,
Fig. 2
the sectional view of Fig. 1 with the fluid outlet elements in the release position,
Fig. 3
a detailed view of a single fluid outlet element of Fig. 1 .
Fig. 4
a detailed view of a single fluid outlet element of Fig. 2 .
Fig. 5
a sectional view accordingly Fig. 1 for a variant with profiled valve seats,
Fig. 6
a sectional view accordingly Fig. 2 for the variant of Fig. 5 .
Fig. 7
a detail sectional view of a single fluid outlet element of Fig. 5 and
Fig. 8
a detailed view of a single fluid outlet element of Fig. 6 ,

Die in Fig. 1 bis 4 gezeigte Brausestrahlerzeugungsvorrichtung ist in einen sanitären Brausekopf integriert, um einen Wasser-Brausestrahl zu erzeugen, dessen Strahlform weitestgehend unabhängig vom Druck des zugeführten Wassers ist. Das dem Brausekopf zugeführte Wasser wird in eine Fluidkammer 3 eingeleitet, die austrittsseitig von einer hier beispielhaft mehrteiligen Strahlscheibe 1 der Brausestrahlerzeugungsvorrichtung begrenzt ist. Die Strahlscheibe 1 verfügt über eine Mehrzahl von vorzugsweise zwischen zehn und zweihundert, z.B. dreißig, Strahlscheibenöffnungen 2, durch die hindurch das Wasser von der Fluidkammer 3 nach außen geleitet werden kann.In the Fig. 1 to 4 The effervescent jet generating device shown is integrated into a sanitary shower head in order to produce a water spray jet whose jet shape is largely independent of the pressure of the supplied water. The shower head supplied water is introduced into a fluid chamber 3, which is the exit side of a here exemplary multi-part jet disk 1 of the effervescent jet generating device limited. The jet disk 1 has a plurality of preferably between ten and two hundred, for example thirty, jet disk openings 2, through which the water can be conducted from the fluid chamber 3 to the outside.

Die mehrteilige Strahlscheibe 1 umfasst eine Elastomerplatte 13, die z.B. aus einem Silikonmaterial mit einer Shore-Härte von vorzugsweise zwischen fünfzig und siebzig, z.B. sechzig, bestehen kann, und eine Metallplatte 14, wobei die Elastomerplatte 13 fluidkammerseitig an der Metallplatte 14 anliegt. Des Weiteren ist eine Gehäuseplatte 8 des Brausekopfs der Strahlscheibe 1 gegenüberliegend und die Fluidkammer 3 begrenzend angeordnet. Dabei ist die Elastomerplatte 13 mit ihrem äußeren Randbereich zwischen der Gehäuseplatte 8 und der Metallplatte 14 die Fluidkammer 3 abdichtend gehalten.The multi-part jet disk 1 comprises an elastomer plate 13, e.g. of a silicone material having a Shore hardness of preferably between fifty and seventy, e.g. sixty, and a metal plate 14, wherein the elastomeric plate 13 fluid chamber side abuts against the metal plate 14. Furthermore, a housing plate 8 of the shower head of the jet disk 1 opposite and the fluid chamber 3 is arranged delimiting. In this case, the elastomer plate 13 is held with its outer edge region between the housing plate 8 and the metal plate 14, the fluid chamber 3 sealingly.

An der einteiligen Elastomerplatte 13 ist eine Mehrzahl von Elastomer-Ringmembranen 12 ausgebildet, die je ein bewegliches Fluidaustrittselement 4 umgeben und tragen. Somit ist das Fluidaustrittselement 4 Ăźber die Elastomer-Ringmembran 12 mit der Elastomerplatte 13 verbunden bzw. an dieser gehalten. Des Weiteren ist die in Fig. 1 bis 4 gezeigte Elastomerplatte 13 einteilig mit dem Fluidaustrittselement 4 und der Elastomer-Ringmembran 12 ausgefĂźhrt. Ferner ist die Elastomerplatte 13 derart an die Metallplatte 14 angelegt, dass an jeder StrahlscheibenĂśffnung 2 ein bewegliches Fluidaustrittselement 4 angeordnet ist.On the one-piece elastomeric plate 13, a plurality of elastomeric annular membranes 12 is formed, each surrounded and carry a movable fluid outlet element 4. Thus, the fluid outlet element 4 is connected via the elastomeric annular membrane 12 with the elastomer plate 13 and held on this. Furthermore, the in Fig. 1 to 4 shown elastomer plate 13 integrally with the fluid outlet element 4 and the elastomeric ring membrane 12 executed. Furthermore, the elastomer plate 13 is applied to the metal plate 14 such that a movable fluid outlet element 4 is arranged at each jet disk opening 2.

Das jeweilige Fluidaustrittselement 4 weist eine Fluidaustrittsöffnung 5 auf, die aus der Fluidkammer 3 ausmündet und nach Art einer Austrittsdüse ausgebildet ist. Die Fluidaustrittsöffnung 5 bzw. die Austrittsdüse hat eine von der Fluidkammer 3 aus kommend eintrittsseitig kegelstumpfförmig konische Geometrie, an die sich austrittsseitig eine kreiszylindrische Geometrie als Endabschnitt anschließt, in welchem die Fluidaustrittsöffnung 5 auf einen Austrittsdurchmesser verjüngt ist, der z.B. typisch im Bereich von 0,6 mm bis 1,2 mm, insbesondere von 0,85 mm bis 0,95 mm, liegt. Die Fluidaustrittsöffnung 5 bzw. Austrittsdüse weist eine bei bestimmungsgemäßem Gebrauch der Brausestrahlerzeugungsvorrichtung fluiddruckunabhängige und formstabile Geometrie auf. Die Symmetrieachse der Fluidaustrittsöffnung 5 ist eine Düsenlängsachse 11, die gleichzeitig eine axiale Hauptrichtungskomponente der Bewegung des beweglichen Fluidaustrittselements 4 ist. Die Düsenlängsachse 11 entspricht zudem einer lokalen Flächennormale einer Außenseite der Strahlscheibe 1 an der betreffenden Stelle.The respective fluid outlet element 4 has a fluid outlet opening 5, which opens out of the fluid chamber 3 and is designed in the manner of an outlet nozzle. The fluid outlet opening 5 or the outlet nozzle has a conical geometry coming from the fluid chamber 3 on the inlet side, followed by a circular-cylindrical geometry as the end section, in which the fluid outlet opening 5 tapers to an outlet diameter which is typically in the range of 0, for example. 6 mm to 1.2 mm, in particular from 0.85 mm to 0.95 mm. The fluid outlet opening 5 or outlet nozzle has a geometry which is fluid-pressure-independent and dimensionally stable when the spray-jet generating device is used as intended. The axis of symmetry of the fluid outlet opening 5 is a nozzle longitudinal axis 11, the at the same time is an axial main direction component of the movement of the movable fluid outlet element 4. The nozzle longitudinal axis 11 also corresponds to a local surface normal of an outside of the jet disk 1 at the relevant point.

Des Weiteren weist das Fluidaustrittselement 4 einen beweglichen VentilkÜrper 6 auf, an dem die FluidaustrittsÜffnung 5 angeordnet ist, wobei der bewegliche VentilkÜrper 6 ein rotationssymmetrisches Element in der Art einer Tellerfeder ist. Der bewegliche VentilkÜrper 6 ist fßr die Bewegung des Fluidaustrittselements 4 und somit auch fßr die Bewegung der FluidaustrittsÜffnung 5 verantwortlich. Infolge der Bewegung des VentilkÜrpers 6 wird das Fluidaustrittselement 4 zwischen einer die FluidaustrittsÜffnung 5 freigebenden oder absperrenden Position geschaltet, wobei der bewegliche VentilkÜrper 6 mit einem unbeweglichen Ventilsitz 7 zusammenwirkt. Ursächlich fßr diese Bewegung ist ein in der Fluidkammer 3 herrschender Fluiddruck, der vom zugeleiteten Wasser erzeugt wird. Der Fluiddruck wirkt auf den beweglichen VentilkÜrper 6, und sobald ein vorgegebener Grenzdruck zwischen 0,2 bar bis 0,35 bar, insbesondere zwischen 0,24 bar bis 0,26 bar, in der Fluidkammer ßberschritten ist, wird der VentilkÜrper 6 und damit das Fluidaustrittselement 4 mit axialer Hauptrichtungskomponente durch den Druck aus einer Absperrposition in eine Freigabeposition bewegt, in welcher der VentilkÜrper 6 die FluidaustrittsÜffnung 5 freigibt. Fällt der Fluiddruck unter den vorgegebenen Grenzdruck, bewegt sich der VentilkÜrper 6 selbsttätig in seine ursprßngliche, die FluidaustrittsÜffnung 5 absperrende Position zurßck.Furthermore, the fluid outlet element 4 has a movable valve body 6, on which the fluid outlet opening 5 is arranged, wherein the movable valve body 6 is a rotationally symmetrical element in the manner of a disc spring. The movable valve body 6 is responsible for the movement of the fluid outlet element 4 and thus also for the movement of the fluid outlet opening 5. As a result of the movement of the valve body 6, the fluid outlet element 4 is switched between a fluid outlet opening 5 releasing or shut-off position, wherein the movable valve body 6 cooperates with a stationary valve seat 7. The cause of this movement is a fluid pressure prevailing in the fluid chamber 3, which is generated by the supplied water. The fluid pressure acts on the movable valve body 6, and as soon as a predetermined limit pressure between 0.2 bar to 0.35 bar, in particular between 0.24 bar to 0.26 bar, is exceeded in the fluid chamber, the valve body 6 and thus the Fluid outlet element 4 with axial main direction component moves by the pressure from a shut-off position to a release position in which the valve body 6, the fluid outlet opening 5 releases. If the fluid pressure falls below the predetermined limit pressure, the valve body 6 automatically moves back into its original, the fluid outlet opening 5 shut-off position.

In Fig. 1 ist die absperrende Position des beweglichen VentilkĂśrpers 6 gezeigt. In dieser Position wirkt der VentilkĂśrper 6 mit dem unbeweglichen Ventilsitz 7 dahingehend zusammen, dass der VentilkĂśrper 6 gegen den Ventilsitz 7 anliegt bzw. andrĂźckt, wodurch der Ventilsitz 7 die FluidaustrittsĂśffnung 5 fluiddicht absperrt. Aufgrund des dichten Anliegens des beweglichen VentilkĂśrpers 6 gegen den unbeweglichen Ventilsitz 7 kann kein Wasser die Fluidkammer 3 durch die FluidaustrittsĂśffnung 5 verlassen, der Brausekopf ist damit gegen Nachtropfen gesichert.In Fig. 1 the shut-off position of the movable valve body 6 is shown. In this position, the valve body 6 cooperates with the immovable valve seat 7 to the effect that the valve body 6 abuts against the valve seat 7 or presses, whereby the valve seat 7, the fluid outlet opening 5 shuts fluid-tight. Due to the tight fit of the movable valve body 6 against the immovable valve seat 7 no water can leave the fluid chamber 3 through the fluid outlet opening 5, the shower head is thus secured against dripping.

Der in Fig. 1 bis 4 gezeigte unbewegliche Ventilsitz 7 ist einteilig mit der Gehäuseplatte 8 des Brausekopfs ausgefßhrt und weist eine ebene Sitzfläche auf, gegen die der bewegliche VentilkÜrper 6 anliegt. Dazu ist der unbewegliche Ventilsitz 7 von einem plateauartigen Vorsprung 15 der Gehäuseplatte 8 gebildet. Dabei beträgt der Abstand zwischen der Strahlscheibe 1 und der Gehäuseplatte 8 ohne Berßcksichtigung der Plateaus 15 vorzugsweise mindestens 2 mm. Dieser Abstand kann als HÜhe der Fluidkammer 3 bezeichnet werden.The in Fig. 1 to 4 shown immovable valve seat 7 is integral with the housing plate 8 of the shower head and has a flat seat surface against which the movable valve body 6 abuts. For this purpose, the immovable valve seat 7 is formed by a plateau-like projection 15 of the housing plate 8. The distance between the jet disk 1 and the housing plate 8 without consideration of the plateaus 15 preferably at least 2 mm. This distance may be referred to as the height of the fluid chamber 3.

Des Weiteren ist in Fig. 1 ersichtlich, dass sich die Fluidaustrittsöffnung 5 in absperrender Position des beweglichen Ventilkörpers 6 durch die Strahlscheibenöffnung 2 hindurch erstreckt und austrittsseitig einen Überstand in Bezug auf die Metallplatte 14 aufweist. Dieser Überstand der Fluidaustrittsöffnung 5 kann z.B. im Bereich von 1 mm bis 3 mm liegen, z.B. ca. 2 mm sein. In der freigebenden Position des beweglichen Ventilkörpers 6, die in Fig. 2 dargestellt ist, beträgt der Überstand vorzugsweise zwischen 3 mm und 7 mm, z.B. ca. 5 mm. Durch die vom Fluiddruck in der Fluidkammer 3 gesteuerte Bewegung des Ventilkörper 6 führt die Fluidaustrittsöffnung 5 somit eine Hubbewegung mit einer axialen Hublänge von vorzugsweise 2 mm bis 5 mm, z.B. ca. 3 mm, aus.Furthermore, in Fig. 1 it can be seen that the fluid outlet opening 5 extends in shut-off position of the movable valve body 6 through the jet disk opening 2 and on the outlet side has a projection with respect to the metal plate 14. This projection of the fluid outlet opening 5 may be, for example, in the range of 1 mm to 3 mm, for example about 2 mm. In the releasing position of the movable valve body 6, which in Fig. 2 is shown, the supernatant is preferably between 3 mm and 7 mm, for example about 5 mm. By controlled by the fluid pressure in the fluid chamber 3 movement of the valve body 6, the fluid outlet opening 5 thus performs a lifting movement with an axial stroke length of preferably 2 mm to 5 mm, for example, about 3 mm.

Im gezeigten Beispiel weist das jeweilige Fluidaustrittselement 4 bzw. sein Ventilkörper 6 eine monostabile Formgebung auf, d.h. eine Formgebung derart, dass das Fluidaustrittselement 4 bzw. sein Ventilkörper 6 genau eine stabile Position aufweist, die vorliegend durch die Absperrposition entsprechend Fig. 1 gegeben ist. Aus dieser wird das Fluidaustrittselement 4 bzw. sein Ventilkörper 6 bei in der Fluidkammer anstehendem Fluiddruck um die Hublänge in die Freigabeposition gemäß Fig. 2 vorbewegt, wenn und sobald der Fluiddruck einen zugehörigen Grenzdruckwert von z.B. 0,25 bar bis 0,35 bar überschreitet. In der Freigabestellung liegt der Ventilkörper 6 nicht mehr gegen den unbeweglichen Ventilsitz 7 an, und das Wasser kann durch die jeweilige Fluidaustrittsöffnung 5 hindurch die Fluidkammer 3 verlassen, um den gewünschten Brausestrahl zu bilden. Wenn der Fluiddruck z.B. durch Abstellen der Wasserzufuhr wieder unter den Grenzwert fällt bzw. bis auf null abnimmt, kehrt das Fluidaustrittselement 4 bzw. sein Ventilkörper 6 selbsttätig durch elastische Rückstellkraft in die Absperrposition zurück, so dass ein Nachtropfen von Wasser aus der Fluidaustrittsöffnung 5 zuverlässig vermieden wird.In the example shown, the respective fluid outlet element 4 or its valve body 6 has a monostable design, ie a shape such that the fluid outlet element 4 or its valve body 6 has exactly one stable position, which in the present case corresponds to the shut-off position Fig. 1 given is. From this, the fluid outlet element 4 and its valve body 6 at pending in the fluid chamber fluid pressure by the stroke length in the release position according to Fig. 2 advances if and as soon as the fluid pressure exceeds an associated limit pressure value of eg 0.25 bar to 0.35 bar. In the release position, the valve body 6 is no longer against the immovable valve seat 7, and the water can leave through the respective fluid outlet opening 5 through the fluid chamber 3 to form the desired shower spray. When the fluid pressure drops again below the limit value, for example by switching off the water supply, or decreases to zero, the fluid outlet element 4 or its valve body 6 automatically returns to the shut-off position by elastic restoring force, so that water dripping off of the fluid outlet opening 5 is reliably prevented becomes.

In den Fig. 3 und 4 sind eines der Fluidaustrittselemente 4 und seine Umgebung in absperrender Position bzw. in freigebender Position vergrößert dargestellt. Wie daraus genauer zu erkennen, ist in diesem Beispiel die Strahlscheibenöffnung 2, an der das gezeigte Fluidaustrittselement 4 angeordnet ist, als Senkbohrung in der Metallplatte 14 ausgeführt, wobei die Senkung eine Geometrie, insbesondere eine Ventilanlagefläche 9, aufweist, die den beweglichen Ventilkörper 6 in der freigebender Position abstützt und in seiner Bewegung begrenzt. Um den beweglichen Ventilkörper 6 nicht zu beschädigen, ist die Senkung der Senkbohrung vorzugsweise derart geformt, dass sie keine spitzen Winkel aufweist.In the 3 and 4 are one of the fluid outlet elements 4 and its surroundings shown in absperrender position or in releasing position enlarged. As can be seen therefrom, in this example, the jet disk opening 2, on which the fluid outlet element 4 shown is arranged, as a counterbore in the metal plate 14th executed, wherein the countersinking a geometry, in particular a valve bearing surface 9, which supports the movable valve body 6 in the releasing position and limited in its movement. In order not to damage the movable valve body 6, the counterbore counterbore is preferably shaped so as not to have acute angles.

In den Fig. 5 bis 8 ist eine Variante der Brausestrahlerzeugungsvorrichtung der Fig. 1 bis 4 gezeigt, wobei zum besseren Verständnis fßr identische und funktionell äquivalente Elemente gleiche Bezugszeichen verwendet sind und insoweit auch auf die obigen Ausfßhrungen zum Ausfßhrungsbeispiel der Fig. 1 bis 4 verwiesen werden kann, so dass nachstehend im Wesentlichen nur auf die bestehenden Unterschiede eingegangen wird, die hier speziell in der Gestaltung des unbeweglichen Ventilsitzes 7 liegen.In the Fig. 5 to 8 is a variant of the effervescent jet generating device of Fig. 1 to 4 are shown, for better understanding of identical and functionally equivalent elements, the same reference numerals are used and to that extent also to the above comments on the embodiment of Fig. 1 to 4 can be referenced so that below essentially only addresses the existing differences, which are here specifically in the design of the immovable valve seat 7.

Bei der Variante der Fig. 5 bis 8 weist der unbewegliche Ventilsitz 7 einen Ventilsitzvorsprung 10 auf, der bei abgesperrter FluidaustrittsĂśffnung 5 in die FluidaustrittsĂśffnung 5 hinein ragt und bei freigegebener FluidaustrittsĂśffnung 5 nicht in die FluidaustrittsĂśffnung 5 hinein ragt. Dadurch kann Kalkablagerungen an der FluidaustrittsĂśffnung 5 entgegengewirkt werden, indem diese durch den Ventilsitzvorsprung 10 von der FluidaustrittsĂśffnung 5 abgelĂśst werden, wenn sich das Fluidaustrittselement 4 zwischen der freigebenden Position und der absperrenden Position bewegt.In the variant of Fig. 5 to 8 the immovable valve seat 7 has a valve seat projection 10 which protrudes into the fluid outlet opening 5 when the fluid outlet opening 5 is shut off and does not protrude into the fluid outlet opening 5 when the fluid outlet opening 5 is released. As a result, lime deposits on the fluid outlet opening 5 can be counteracted by being detached from the fluid outlet opening 5 by the valve seat projection 10 when the fluid outlet element 4 moves between the releasing position and the blocking position.

Außerdem weist der unbewegliche Ventilsitz 7 bei der Variante der Fig. 5 bis 8 eine Gestalt auf, die an diejenige des beweglichen Ventilkörpers 6 formangepasst ist. Dazu besitzt der unbewegliche Ventilsitz 7 eine ringförmige Vertiefung bzw. Ausnehmung in Form einer negativen Gestalt des in der Absperrposition anliegenden beweglichen Ventilkörpers 6. Dies vergrößert die Kontaktfläche zwischen dem beweglichen Ventilkörper 6 und dem unbeweglichen Ventilsitz 7 in der Absperrposition verglichen mit der ebenen Sitzfläche bei der Variante der Fig. 1 bis 4 und trägt zu einer Zentrierung der gegen den Ventilsitz 7 in der Absperrposition andrückenden Lage des Ventilkörpers 6 bei. Diese vergrößerte Kontaktfläche und die zentrierte Lage des Ventilkörpers 6 unterstützen vorteilhaft das sichere Abdichten der Fluidaustrittsöffnung 5.In addition, the immovable valve seat 7 in the variant of Fig. 5 to 8 a shape conformed to that of the movable valve body 6. For this purpose, the immovable valve seat 7 has an annular recess or recess in the form of a negative shape of the voltage applied in the shut-off movable valve body 6. This increases the contact area between the movable valve body 6 and the immovable valve seat 7 in the Absperrposition compared with the flat seat in the Variant of Fig. 1 to 4 and contributes to a centering of the pressing against the valve seat 7 in the shut-off position of the valve body 6 at. This enlarged contact surface and the centered position of the valve body 6 advantageously assist the secure sealing of the fluid outlet opening 5.

In einer nicht dargestellten erfindungsgemäßen Variante der Brausestrahlerzeugungsvorrichtung ist der unbewegliche Ventilsitz 7 in Form eines vorzugsweise kegelstumpfförmigen Stopfens ausgeführt, welcher in Absperrposition die Fluidaustrittsöffnung 5 verschließt. Der stopfenförmige unbewegliche Ventilsitz 7 ragt dabei in die Fluidaustrittsöffnung 5 hinein.In a variant of the effervescent jet generating device, not shown, according to the invention, the immovable valve seat 7 is in the form of a preferably frustoconical Plugged, which closes the fluid outlet opening 5 in the shut-off position. The plug-shaped immovable valve seat 7 protrudes into the fluid outlet opening 5.

In einer nicht dargestellten erfindungsgemäßen Variante der Brausestrahlerzeugungsvorrichtung weist eine Zwischenplatte statt der gezeigten Gehäuseplatte 8 den unbeweglichen Ventilsitz auf. Diese Zwischenplatte ist vorzugsweise in einen Brausekopf integriert und wirkt als Begrenzung der Fluidkammer auf deren der Strahlscheibe gegenüberliegenden Seite.In an inventive variant of the shower jet generating device, not shown, an intermediate plate instead of the housing plate 8 shown on the immovable valve seat. This intermediate plate is preferably integrated in a shower head and acts as a boundary of the fluid chamber on the side opposite the jet disc.

Wie die gezeigten und oben erläuterten Ausfßhrungsbeispiele deutlich machen, stellt die Erfindung eine Brausestrahlerzeugungsvorrichtung bereit, die das unerwßnschte Nachtropfen zuverlässig verhindert, relativ einfach herstellbar und funktionssicher ist. Des Weiteren ist der Austrittsquerschnitt der FluidaustrittsÜffnung weitestgehend vom Fluiddruck in der Fluidkammer unbeeinflusst. Die Erfindung ist insbesondere in der Sanitärtechnik einsetzbar, aber auch in anderen Anwendungen, in denen der Bedarf besteht, einen Brausestrahl funktionssicher und ohne Nachtropfen erzeugen zu kÜnnen.As the illustrated and illustrated above embodiments clear, the invention provides a effervescent jet generating device that reliably prevents the unwanted dripping, is relatively easy to produce and reliable. Furthermore, the outlet cross section of the fluid outlet opening is largely uninfluenced by the fluid pressure in the fluid chamber. The invention is particularly useful in sanitary engineering, but also in other applications where there is a need to produce a shower jet functionally reliable and without dripping.

Claims (10)

Brausestrahlerzeugungsvorrichtung fßr einen sanitären Brausekopf, mit - einer Strahlscheibe (1), die mindestens eine StrahlscheibenÜffnung (2) aufweist und eine Fluidkammer (3) austrittsseitig begrenzt, und - einem an der mindestens einen StrahlscheibenÜffnung angeordneten und in einer axialen Hauptrichtungskomponente beweglichen Fluidaustrittselement (4), das einen beweglichen VentilkÜrper (6) mit einer aus der Fluidkammer ausmßndenden FluidaustrittsÜffnung (5) aufweist, die abhängig von einem Fluiddruck in der Fluidkammer in einer Freigabeposition des Fluidaustrittselements freigegeben und in einer Absperrposition des Fluidaustrittselements abgesperrt ist,
dadurch gekennzeichnet, dass - der bewegliche VentilkĂśrper (6) mit einem unbeweglichen Ventilsitz (7) zusammenwirkt, der die FluidaustrittsĂśffnung (5) in der Freigabeposition des Fluidaustrittselements freigibt und in einer Absperrposition des Fluidaustrittselements absperrt. Shower jet generating device for a sanitary shower head, with - A jet disc (1) having at least one jet disc opening (2) and a fluid chamber (3) on the outlet side limited, and a fluid outlet element (4) arranged on the at least one jet disc opening and movable in an axial main direction component, which has a movable valve body (6) with a fluid outlet opening (5) opening out of the fluid chamber, which is dependent on a fluid pressure in the fluid chamber in a release position of the Fluid outlet element is released and shut off in a shut-off position of the fluid outlet element,
characterized in that - The movable valve body (6) cooperates with a fixed valve seat (7) which releases the fluid outlet opening (5) in the release position of the fluid outlet element and shuts off in a shut-off position of the fluid outlet element. Brausestrahlerzeugungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Fluidkammer durch eine den unbeweglichen Ventilsitz aufweisende Zwischenplatte oder Gehäuseplatte (8) begrenzt ist, wobei die Zwischenplatte oder Gehäuseplatte der Strahlscheibe gegenüberliegend angeordnet ist.Effervescent jet generating device according to claim 1, characterized in that the fluid chamber is delimited by an immovable valve seat having intermediate plate or housing plate (8), wherein the intermediate plate or housing plate of the jet disk is arranged opposite. Brausestrahlerzeugungsvorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass der bewegliche Ventilkörper in der Freigabeposition des Fluidaustrittselements gegen eine Ventilanlagefläche (9) der Strahlscheibe anliegt.Effervescent jet generating device according to one of the preceding claims, characterized in that the movable valve body rests in the release position of the fluid outlet element against a valve contact surface (9) of the jet disc. Brausestrahlerzeugungsvorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass sich das Fluidaustrittselement mit seiner Fluidaustrittsöffnung in seiner Freigabeposition und/oder in seiner Absperrposition durch die Strahlscheibenöffnung hindurch erstreckt.Effervescent jet generating device according to one of the preceding claims, characterized in that the fluid outlet element extends with its fluid outlet opening in its release position and / or in its shut-off position through the jet disc opening. Brausestrahlerzeugungsvorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass der Ventilsitz einen Ventilsitzvorsprung (10) aufweist, der bei abgesperrter Fluidaustrittsöffnung in die Fluidaustrittsöffnung hinein ragt.Effervescent jet generating device according to one of the preceding claims, characterized in that the valve seat has a valve seat projection (10), which protrudes into the fluid outlet opening when the fluid outlet opening is shut off. Brausestrahlerzeugungsvorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Fluidaustrittsöffnung eine fluiddruckunabhängig formstabile und/oder kreiszylindrische und/oder konische Geometrie aufweist.Effervescent spray device according to one of the preceding claims, characterized in that the fluid outlet opening has a fluid-pressure-independent dimensionally stable and / or circular cylindrical and / or conical geometry. Brausestrahlerzeugungsvorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Fluidaustrittsöffnung von einer Austrittsdüse mit einer Düsenlängsachse (11) gebildet ist, die parallel zu einer lokalen Flächennormale einer Außenseite der Strahlscheibe ist.Effervescent jet generating device according to one of the preceding claims, characterized in that the fluid outlet opening is formed by an outlet nozzle having a nozzle longitudinal axis (11) which is parallel to a local surface normal of an outer side of the jet disc. Brausestrahlerzeugungsvorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das Fluidaustrittselement eine Elastomer-Ringmembran (12) aufweist, welche den beweglichen Ventilkörper umgibt und trägt.Effervescent jet generating device according to one of the preceding claims, characterized in that the fluid outlet element has an elastomeric annular membrane (12) which surrounds and carries the movable valve body. Brausestrahlerzeugungsvorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das Fluidaustrittselement einteilig ausgeführt ist.Effervescent jet generating device according to one of the preceding claims, characterized in that the fluid outlet element is designed in one piece. Brausestrahlerzeugungsvorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass eine Mehrzahl von Strahlscheibenöffnungen und zugeordneten Fluidaustrittselementen vorgesehen ist und die Strahlscheibe eine einteilige Elastomerplatte (13) aufweist, an der die Mehrzahl von Fluidaustrittselementen ausgebildet ist.Effervescent jet generating device according to one of the preceding claims, characterized in that a plurality of jet disc openings and associated fluid outlet elements is provided and the jet disc has a one-piece elastomer plate (13) on which the plurality of fluid outlet elements is formed.
EP17194704.7A 2016-10-07 2017-10-04 Spray jet generating device Active EP3305412B1 (en)

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Also Published As

Publication number Publication date
DE102016219551A1 (en) 2018-04-12
RU2668252C1 (en) 2018-09-27
ZA201706662B (en) 2019-05-29
DE102016219551B4 (en) 2022-01-05
CN107913807B (en) 2020-08-25
US10821453B2 (en) 2020-11-03
CN107913807A (en) 2018-04-17
US20180099295A1 (en) 2018-04-12
EP3305412B1 (en) 2020-11-18

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