EP0208958B2 - Drosselvorrichtung für Strahlregler - Google Patents

Drosselvorrichtung für Strahlregler Download PDF

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Publication number
EP0208958B2
EP0208958B2 EP86108626A EP86108626A EP0208958B2 EP 0208958 B2 EP0208958 B2 EP 0208958B2 EP 86108626 A EP86108626 A EP 86108626A EP 86108626 A EP86108626 A EP 86108626A EP 0208958 B2 EP0208958 B2 EP 0208958B2
Authority
EP
European Patent Office
Prior art keywords
flow
insert
channels
restricting device
regulator
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.)
Expired - Lifetime
Application number
EP86108626A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0208958A2 (de
EP0208958B1 (de
EP0208958A3 (en
Inventor
Dieter Wildfang
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.)
Neoperl GmbH
Original Assignee
Dieter Wildfang GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6275680&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0208958(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dieter Wildfang GmbH filed Critical Dieter Wildfang GmbH
Priority to AT86108626T priority Critical patent/ATE47183T1/de
Publication of EP0208958A2 publication Critical patent/EP0208958A2/de
Publication of EP0208958A3 publication Critical patent/EP0208958A3/de
Application granted granted Critical
Publication of EP0208958B1 publication Critical patent/EP0208958B1/de
Publication of EP0208958B2 publication Critical patent/EP0208958B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • E03C2001/026—Plumbing installations for fresh water with flow restricting devices

Definitions

  • the invention relates to a throttle device according to the preamble of claim 1.
  • Jet regulators with different flow classes are already known and are selected for a desired flow rate per unit of time depending on the pressure conditions prevailing in a line network. A subsequent change in the flow rate per unit of time is practically not possible and is also not provided.
  • jet regulators with a low or with the lowest flow rate e.g. flow class Z
  • flow class Z the lowest flow rate
  • Jet regulators are also already known with a throttle insert part designed as a disc, which, depending on the desired throttling effect, has a more or less large bore.
  • the disadvantage here is that there is practically a single sharp passage jet and an increased valve noise.
  • the throttle plate can be replaced only with difficulty and can be carried out with an auxiliary tool, which also requires corresponding knowledge and skill.
  • a throttle insert is known from EP-A-0 033 313, which consists of a cap-like plastic part with several longitudinal slots.
  • the clear cross-section of the longitudinal slots also determines the degree of throttling here, and different configurations of the cross-sections of these longitudinal slots and replacement of corresponding cap parts can vary accordingly.
  • valve noise beyond the permissible level also occurs after the installation of this insert.
  • the object of the present invention is to provide a throttle device which, on the one hand, causes only small, practically insignificant additional valve noises when used in front of jet regulators with a simultaneous reduction in the flow rate, the permissible range of noise generation not being exceeded.
  • this throttle device should be constructed in such a way that it can be used practically universally, even retrospectively, in connection with different jet regulators, whereby assembly and disassembly should be simple.
  • a jet regulator is already known in which a cover part of its jet splitter has disassembly holes oriented in the flow direction, which open into the inflow-side surface by an annular gap-like guide channel essentially delimited by two cone-shaped surfaces, which in turn is in the flow direction somewhat expanded in terms of its cross section. Due to the conical design of the top of the adjoining guide channel, the splitting holes of this jet splitter have outlet cross sections that are oblique to the splitting holes, which are thus also larger than the splitting hole cross sections, but they are located in the jet splitter of the known jet regulator itself, so they do not belong to one Throttle device that is to be connected upstream of such a jet splitter.
  • the guide channel into which the disassembly holes open and the lower, frustoconical side of which is an uninterrupted baffle surface, is an annular, all-round closed guide channel which, seen in the direction of flow, only has a circular mouth at the air intake device of the jet regulator.
  • an insert part sieve which can be plugged onto the insert part is provided on the inlet side to cover the passage channels of this insert part.
  • DE-U-84 36 202 discloses a coarse sieve which can be fixed in an undercut in an aerator for faucet mouthpieces and which is there to protect the free holes in a plate base against blockage.
  • the insert screen is intended to protect the passage channels on the throttle device from clogging and thereby indirectly help to promote the most uniform possible jet supply to the actual jet regulator even when a throttle device is installed.
  • a jet regulator In Fig. 1, a jet regulator, generally designated 1, is connected to the end of an outlet fitting 2. As is known, such jet regulators 1 are used, in particular, to let water coming from a sanitary outlet fitting 2 flow out in a uniform water jet, often with mixing the water with air. 1 shows a necessary air intake and jet disassembly device belonging to the jet regulator 1, which is combined there as an assembly 3 and is only shown schematically. On the flow inlet side one can see a regulator screen 4, which closes the assembly 3 and belongs to the jet regulator 1, as well as air slots 5 provided in the side wall of this assembly 3.
  • Such or similar jet regulators depending on their construction and design, exert a throttling effect on the water jet flowing through, which often does not match the throttling effect that is desired in the individual case at the given application point.
  • the throttle device designated as a whole by 20 can be easily assembled or disassembled by non-specialists without special auxiliary tools as required. 6 and 7 show the throttle device 20 on its own and FIG. 2 in the installed state and provided with an insert screen 21.
  • the throttle device 20 is designed with its throttle cross-sections (passage channels 7) at least approximately in the direction of flow (Pf 1) in front of the further built-in parts (3, 4, etc.) of the jet regulator, this interchangeable insert part 6 which is hat-shaped and can be supported against the dynamic pressure.
  • this interchangeable insert part 6 which is hat-shaped and can be supported against the dynamic pressure.
  • FIGS. 6 and 7 shows, even less trained persons can particularly easily insert or remove or replace them in an existing jet regulator 1.
  • the flow rate can be reduced in the existing jet regulator with a fixed flow class so that the effect of the flow regulator 1 is a different flow class.
  • You can e.g. the total cross-section of all passage channels 7 of the insert part 6 is dimensioned such that in the jet regulator 1 equipped with such an insert part 6 a flow class e.g. “Z” results in a very economical water consumption.
  • the insert part 6 of the throttle device 20 is provided with an annular wall 9 and a cover part 10 opposite the flow direction Pf 1.
  • the throttle cross sections are provided by the clear widths of the passage channels 7 arranged in the area of the ring wall 9, which are cut obliquely at their mouths 8. The orifices 8 thus extend laterally on the jet over a longer flow area.
  • a liquid flow passing through the channels 7 is therefore not released at the mouths 8 simultaneously over the entire channel cross-section, but instead takes place through the inclined mouth surfaces 8 with the passage channel 7 or liquid stream partially released, and its regionally guidance over a circumferential section.
  • insert parts 6 increase the overall noise level of a jet regulator 1 only slightly and thus also enable subsequent installation without exceeding the permissible noise level.
  • the diagonally arranged orifices 8, which release the respective rays obliquely into the center of the jet regulator 1 or in the direction of its regulator screen 4 also favor a comparative inflow from the insert 6 to the actual jet regulator 1.
  • the passage cross section of the channels 7 in the flow direction Pf 1 has the same dimensions and shape. Usually they are round bores.
  • the area 8 of the mouths of these channels 7 is larger than the channel cross section, so that the projection of the mouth area on an imaginary plane perpendicular to the longitudinal axes L of the channels 7 corresponds to the channel cross section.
  • the mouths 8 of the channels 7 lie on an inside region 11 of the insert part 6, which is oriented obliquely downwards and outwards.
  • the cylindrical ring wall 9 of the insert part 6 is arranged at least approximately parallel to its longitudinal axis A and the passage channels 7 are likewise arranged at least substantially parallel to this longitudinal axis and at equal distances from one another.
  • the passage channels 7, also called channels 7 'for short, are located in the outer circumferential area of the cover part 10 and continue along the ring wall 9.
  • the orifices 8 of these channels 7 lie on the inside 11 of the annular wall 9. In the exemplary embodiment, this is arranged obliquely to the longitudinal axis A of the throttle device 20, so that there is an oblique cut and thus the desired shape of the orifice 8 on the inside 11 of the annular wall 9 .
  • the passage channels 7 can also deviate somewhat from the parallel position to the longitudinal axis A, although the opening area which is enlarged compared to a vertical cross section is still present.
  • the intersection angle S (see FIGS. 3 to 5) between the longitudinal channel axis L can e.g. are approximately in the range between 10 and 45 °, preferably 20 ° being provided.
  • the design with channels 7 oriented to the longitudinal axis of the throttle device 20 is preferred, as already mentioned, because of its ease of manufacture, especially when the insert 6 of the throttle device, designated as a whole by 20, is preferably made of plastic, expediently by an injection molding process .
  • Deviations from the preferred embodiment shown in particular in FIGS. 6 and 7 are shown in FIGS. 4 and 5.
  • the inside 11b is curved, with the intersection angle S between the tangent in the mouth region of the longitudinal axis L of the channel.
  • the passage cross section of the channels 7 has constant dimensions in the flow direction.
  • a preferably circular cross section is provided, which is easy to manufacture in terms of production technology. Such insert parts made of plastic can also be easily removed from the mold.
  • FIG. 5 also shows a modified embodiment of the throttle device 20, in which the cross section of the channels widens conically towards the mouth 8.
  • the various exemplary embodiments of the throttle device 20 according to FIGS. 3 to 5 can be used depending on the existing environmental conditions or also depending on the intended manufacturing method for the insert 6.
  • the channels 7 can also have polygonal, e.g. have square cross sections.
  • eighteen circular channels with a clear diameter of 0.9 mm are preferably provided in the insert part 6.
  • a flow rate corresponding to the flow class Z can be achieved largely independently of the respectively predefined flow class of the jet regulator 1 in which this throttle device 20 is used.
  • the cover part 10 of the insert part 6 is designed as a flat plate and comparatively thick-walled and thus rigid. As a result, natural vibrations that could lead to noise are avoided even at different pressure conditions, if necessary. the cover part 10 can also be shaped conically against the direction of flow.
  • the annular wall 9 with the inclined inner side 11 also provides good stability with comparatively small wall thicknesses, so that here too vibrations or the resulting noise gene can be avoided.
  • the hat-shaped insert part 6 of the throttle device 20 has an outwardly facing, circumferential flange 13 at the outlet end (lower in the drawing). This serves in particular as a support and as a holding part and also for centering the insert part 6.
  • this flange 13 stabilizes the ring wall 9 which is narrower in the transition area to the flange 13 and thereby stabilizes the entire insert part 6.
  • the ring wall 9 of the insert part 6 has at its end facing away from the inflow direction Pf 1 there is a bevelled support, which is approximately matched to the shape of an adjacent installation part of the jet regulator 1, in particular to the shape of the regulator screen 4. Furthermore, the e.g. surface of the regulator sieve 4 or the like.
  • Protective sieve of the jet regulator 1 curved approximately upwards and preferably at a distance from the mouths 8 of the channels 7 (cf. FIGS. 1 and 2). Then there is a corresponding space between the mouths 8 on the one hand and the top of the regulator screen 4 on the other hand such that the distribution of the throttled medium flowing in takes place relatively evenly.
  • the ring wall 9 or the flange 13 have an inclined support slope. In the embodiment of the insert part 6 shown in FIG. 2, this is supported, as mentioned, on the upper side of the approximately conical regulator sieve 4 and results in i. d.R. a distance between the mouths 8 to the surface of the regulator screen, in which favorable flow conditions arise.
  • the peripheral surface of the flange has a shoulder 15 with a centering bevel 16.
  • the extension 15 is offset inwards relative to the outer circumference of the stop flange 13 and the centering bevel 16 adjoins this extension 15 on the outside.
  • This edge formation of the flange 13 enables the insert part 6 to be held in an embodiment of a jet regulator 1 shown in FIG. 1.
  • the insert part 6 is supported with the attachment 15 approximately radially on a press ring 17 belonging to the assembly 3, the centering bevel 16 Axial support and centering of the insert 6 results simultaneously.
  • the outer edge of the flange 13 of the insert part 6 rests on the inside against the sealing ring 18.
  • the distance from its cover part 10 and the distance between the mouths 8 of the channels 7 from the support slope can be dimensioned such that a dome-shaped part of the control screen 4 fits into the insert part 6 or this insert part 6 over the regulator screen can be put over, but a distance remains between the regulator screen 4 and the mouths 8 of the insert 6 in a desired manner.
  • the hat-shaped insert part 6 can well be provided with such external dimensions that allow it to be inserted into the connection area of a jet regulator 1.
  • the space available there which is partly stipulated by standardization, is in itself cramped. Nevertheless, the throttle device can still be accommodated there without changes to the jet regulator.
  • the throttle device 20 has an insertable insert sieve 21 on its inlet part 6 on the inlet side for draining the passages 7 of this insert part 6. Then the channels 7 of the insert part 6 are largely protected against contamination, which also contributes to a uniform and quiet operation of the throttle device 20.
  • the assembly of the throttle device 20 can be carried out particularly easily, since it can be placed as the first part in the flow direction Pf 1 on the subsequent installation parts 3 or 4 etc.
  • the throttle device 20 is thus directly suitable for removal or for a change even after the jet regulator 1 has been unscrewed from the outlet fitting 2.
  • the special shape of the throttle device 20 results in a correspondingly dimensioned adjustment of the insert part 6 on the usually available free space in jet regulators 1 and by the design of the fastening and supporting parts of the insert part 6 of the throttle device 20, a throttle device suitable for various applications with largely universal usability in the market located jet regulators 1. It is possible to operate the jet regulator 1 in accordance with the regulations regarding the valve noise, even if it is additionally equipped with a throttle device 20, in particular by designing this throttle device 20.

Landscapes

  • 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)
  • Pipe Accessories (AREA)
  • Massaging Devices (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Safety Valves (AREA)
EP86108626A 1985-07-13 1986-06-25 Drosselvorrichtung für Strahlregler Expired - Lifetime EP0208958B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86108626T ATE47183T1 (de) 1985-07-13 1986-06-25 Drosselvorrichtung fuer strahlregler.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853525031 DE3525031A1 (de) 1985-07-13 1985-07-13 Strahlregler
DE3525031 1985-07-13

Publications (4)

Publication Number Publication Date
EP0208958A2 EP0208958A2 (de) 1987-01-21
EP0208958A3 EP0208958A3 (en) 1987-07-29
EP0208958B1 EP0208958B1 (de) 1989-10-11
EP0208958B2 true EP0208958B2 (de) 1992-09-16

Family

ID=6275680

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86108626A Expired - Lifetime EP0208958B2 (de) 1985-07-13 1986-06-25 Drosselvorrichtung für Strahlregler

Country Status (3)

Country Link
EP (1) EP0208958B2 (enrdf_load_stackoverflow)
AT (1) ATE47183T1 (enrdf_load_stackoverflow)
DE (2) DE3525031A1 (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19510734C2 (de) * 1995-03-24 2003-01-23 Wildfang Dieter Gmbh Einbauteile-Garnitur zum Einbau in ein Auslauf-Mundstück
DE102023102083A1 (de) * 2023-01-27 2024-08-01 Neoperl Gmbh Strahlregler

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3417924A (en) * 1967-02-15 1968-12-24 Elie P. Aghnides Aerator with variable proportioning
US3633824A (en) * 1969-07-08 1972-01-11 Elic P Aghnides Spray-producing device in which the output jets are aerated
US3623670A (en) * 1970-06-17 1971-11-30 Waterbury Pressed Metal Co The Aerator and spray device
DE2060751C3 (de) * 1970-12-10 1973-11-08 Mannesmann& Keppel Electronics, 5630 Remscheid Flüssigkeitsmengenregler
FR2190987B2 (enrdf_load_stackoverflow) * 1972-06-26 1976-05-28 Aghnides Elie P
US4000857A (en) * 1974-07-17 1977-01-04 Moen Alfred M Flow control aerator
DE7611891U1 (de) * 1976-04-14 1980-09-11 Dieter Wildfang Kg, 7840 Muellheim Durchflussbegrenzer fuer in leitungen stroemende medien
US4294289A (en) * 1980-01-24 1981-10-13 American Standard Inc. Flow control device
DE8133875U1 (de) * 1981-11-20 1983-05-05 Dieter Wildfang KG, 7840 Müllheim "strahlregler zum anschluss an sanitaer-armaturen o.dgl."
DE3208530A1 (de) * 1982-03-10 1983-09-22 TA Rokal GmbH, 4054 Nettetal Ventileinsatz
DE8436202U1 (de) * 1984-12-11 1985-03-14 Ramspott, Friedhelm, 5780 Bestwig Luftsprudler fuer wasserhahnmundstuecke

Also Published As

Publication number Publication date
EP0208958A2 (de) 1987-01-21
DE3525031C2 (enrdf_load_stackoverflow) 1987-06-11
DE3525031A1 (de) 1987-01-22
EP0208958B1 (de) 1989-10-11
DE3666253D1 (en) 1989-11-16
EP0208958A3 (en) 1987-07-29
ATE47183T1 (de) 1989-10-15

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