EP0448467B1 - Druckknopf mit innerlicher Düse und seitlicher Projektion für eine Hochdruckzerstäubungspumpe mit hohem Tempo - Google Patents

Druckknopf mit innerlicher Düse und seitlicher Projektion für eine Hochdruckzerstäubungspumpe mit hohem Tempo Download PDF

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Publication number
EP0448467B1
EP0448467B1 EP91400753A EP91400753A EP0448467B1 EP 0448467 B1 EP0448467 B1 EP 0448467B1 EP 91400753 A EP91400753 A EP 91400753A EP 91400753 A EP91400753 A EP 91400753A EP 0448467 B1 EP0448467 B1 EP 0448467B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
push button
outlet channel
valve stem
outlet
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
EP91400753A
Other languages
English (en)
French (fr)
Other versions
EP0448467A1 (de
Inventor
Claude Jouillat
Michel Brunet
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.)
Societe Technique de Pulverisation SA STEP
Original Assignee
Societe Technique de Pulverisation SA STEP
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Filing date
Publication date
Application filed by Societe Technique de Pulverisation SA STEP filed Critical Societe Technique de Pulverisation SA STEP
Publication of EP0448467A1 publication Critical patent/EP0448467A1/de
Application granted granted Critical
Publication of EP0448467B1 publication Critical patent/EP0448467B1/de
Anticipated expiration legal-status Critical
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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
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1052—Actuation means

Definitions

  • the subject of the present invention is a spray pump or vaporizer push-button with lateral projection, more particularly intended to operate under high pressures, of the order of 100 bars or more, and at a rapid repetitive rate, such as 50 operations per second (50 Hz) or more, 100 or 200 Hz for example.
  • the plunger is designed to be mounted on the piston rod, commonly called the valve rod, of the pump, consisting of a hollow tube controlling the piston, and through which tube is discharged the product to be vaporized.
  • the spray jet is substantially perpendicular to the axis of the valve stem.
  • the object of the invention is to limit the vibrations which may appear in such a lateral projection pusher which is actuated at a rapid rate.
  • the subject of the invention is therefore a pusher with nozzle, to be mounted on the valve stem of a liquid spraying pump, intended more particularly to operate under very high pressures, of the order of 50 bars or more, in particular more than 100 bars, and repetitively very rapidly, of the order of 50 Hz or more, said nozzle being fixed to the pusher, said pusher comprising a cylindrical outlet channel which extends axially between a front end and a rear end, characterized in that said outlet channel (4) is perpendicular to the axis of said valve stem, and in that the center of gravity of the valve lifter with the nozzle is located on the axis of the valve stem .
  • the pusher has an inlet orifice which is adapted to communicate with said pump rod and which opens into said outlet channel in a middle zone, between the front end and the end rear of said outlet channel, the outlet channel is open at its rear end and limited at its front end by a front wall pierced with a central outlet port, the nozzle has the shape of a rod engaged in the outlet channel leaving a small section passage between the valve stem and the outlet, and said nozzle is fixed in the outlet channel and closes the rear end of said outlet channel.
  • This arrangement eliminates the risk of expulsion of the nozzle forwards, a non-negligible risk when the pressure is high, and favors the molding of the pusher, allowing the molding in one piece of a very long channel.
  • a nozzle of the general type of that of the invention, called an internal nozzle, is disclosed in document FR-A - 2 547 737.
  • This document discloses a valve having a channel coaxial with the valve stem of the pump, said channel being delimited at a projection end, or front end, by a wall pierced with a central orifice.
  • a rod, of slightly outer section lower than the inner section of the channel, is placed in the channel, of which there remains only a free section of reduced volume, thus avoiding a dead volume detrimental to good spraying.
  • the rear end of the pusher channel is open and communicates with the valve stem of the pump.
  • the nozzle has a rear end provided with at least two attachment rods, each attachment rod being constituted by a peripheral bead formed on the nozzle in a straight section of the nozzle, the section of the bead having the shape of a notch oriented towards the rear of the nozzle.
  • the nozzle has a front end disposed in the vicinity of the front wall of the pusher, the front end of the nozzle has a diameter less than the diameter of the outlet channel, and said outlet channel has at its end internal centering bosses which receive and center the front end of the nozzle.
  • the outlet channel has a diameter of less than 3 mm, preferably between 2 and 3 mm.
  • the center of gravity of the tappet is located in the axis of the valve stem. This arrangement ensures a good balance and a good holding in position during repetitive operations at a rapid rate.
  • the outlet channel of the push button, into which the valve stem opens has a reduced diameter, at most of the order of 3 mm, and preferably between 2 and 3 mm, this which makes it possible to withstand the high operating pressures while retaining reduced dimensions.
  • the drawings represent an embodiment of a pusher 1 and a nozzle 2.
  • the pusher comprises a connection end piece 3 formed so as to press the pusher, in a well known manner, on the valve stem of a pump. spray.
  • the nozzle opens into an outlet channel 4 substantially perpendicular to the axis of the nozzle, (which is that of the valve stem).
  • the channel 4 is limited at its front end 4A (or outlet from the spray jet) by a front wall 5, pierced in its center with a spray hole 6.
  • the rear end 4B is open. This arrangement makes it possible to place the pusher on a pump mounted on a container, with a spray orifice 6 which is located outside the extension of the container.
  • the section of channel 4 can be uniform.
  • the channel may be slightly conical by widening towards the open end 4B.
  • the diameter of the channel 4 is reduced in accordance with a characteristic of the present invention, and does not exceed substantially three millimeters. It is advantageously between two and three millimeters.
  • the arrangement with internal nozzle makes it possible to mold in good conditions a pusher with an outlet channel long enough to reach or exceed the extension of the profile of the container, and of a diameter suitable for receiving an internal nozzle.
  • the center of gravity of the pusher with the nozzle is located on the axis of the valve stem, that is to say on the X axis of the fitting 3 this arrangement is favorable to rapid repetitive movement of the pusher to actuate the pump at a high rate, at least 50 Hz, and if necessary 100 Hz or more.
  • the nozzle 2 shown in Figure 4 is adapted to be housed on the outlet channel 4, so as to leave a passage of reduced section between the orifice 7 through which the endpiece 3 opens into the channel 4 and the front end 4A of this channel, and so as to close the opening of the other end 4B.
  • the nozzle as shown is formed with five attachment rods 8, one of which is shown in section on a larger scale in FIG. 5.
  • Each rod is constituted by a peripheral bead, going around the following nozzle a cross section of it.
  • the section of the bead has the shape of a notch 9 with a stop 10 oriented towards the rear.
  • the front part 2A of the nozzle has a diameter slightly smaller than the inside diameter of the channel 4, and the latter is formed, in the vicinity of its front end, with at least three centering bosses 11, thus defining as many passages between the nozzle and the wall of the channel between the bosses. These have a constant thickness except for an end bevel to facilitate the introduction of the nozzle to the bottom of its housing.
  • the front wall 5 is provided, in a conventional manner, on its internal face, with grooves extending from the periphery between the centering bosses 11, up to the outlet orifice 6, arriving tangentially thereto, for printing to the expelled fluid a vortex movement.
  • the nozzle can be welded to the pusher once it is put in place.
  • a pusher according to the invention makes it possible to operate a spray pump at a high rate and under high pressure, giving a very fine spray and a flow which appears in practice to be constant, which gives an effect identical to that of an aerosol, or even better, without having the drawbacks of using an auxiliary product which can be considered unfavorable for the environment.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)

Claims (6)

  1. Drücker (1) mit Spritzdüse (2) zum Aufsatz auf die Ventilstange einer Flüssigkeitszerstäubungspumpe, vor allem für den Betrieb unter sehr hohen Drücken von 50 Bar oder mehr, insbesondere mehr als 100 Bar, und mit sehr schneller Wiederholfrequenz von 50 Hz oder mehr, wobei die Spritzdüse (2) am Drücker (1) befestigt ist und der Drücker (1) einen zylindrischen Auslaßkanal (4) aufweist, der sich axial zwischen einem vorderen Ende (4A) und einem hinteren Ende (4B) erstreckt, dadurch gekennzeichnet, daß der Auslaßkanal (4) senkrecht zur Achse der Ventilstange liegt und daß der Schwerpunkt des Drükkers mit der Spritzdüse sich auf der Achse der Ventilstange befindet.
  2. Drücker nach Anspruch 1, bei dem der Drücker eine Einlaßöffnung (7) aufweist, die mit der Ventilstange in Verbindung steht und die in den Auslaßkanal (4) in einem Mittelbereich zwischen dem vorderen Ende (4A) und dem hinteren Ende (4B) des Auslaßkanals mündet, bei dem der Auslaßkanal (4) an seinem hinteren Ende (4B) offen ist und an seinem vorderen Ende (4A) durch eine Stirnwand (5) begrenzt wird, die eine zentrale Auslaßöffnung (6) aufweist, bei dem die Spritzdüse (2) die Form einer Stange hat, die in den Auslaßkanal (4) eingeführt ist und einen Durchlaß geringen Querschnitts zwischen der Ventilstange und der Auslaßöffnung (6) freiläßt und bei dem die Spritzdüse (2) im Auslaßkanal (4) befestigt ist und das hintere Ende (4B) dieses Auslaßkanals verschließt.
  3. Drücker nach Anspruch 2, bei dem die Spritzdüse ein hinteres Ende aufweist, das mindestens zwei Befestigungsringe (8) besitzt, wobei jeder Befestigungsring aus einem peripheren Wulst besteht, der auf der Spritzdüse in einem geraden Querschnitt der Spritzdüse ausgebildet ist, wobei der Querschnitt des Wulsts die Form einer Raste (9, 10) hat, die zum hinteren Ende der Spritzdüse hin ausgerichtet ist.
  4. Drücker nach Anspruch 2 oder Anspruch 3, bei dem die Spritzdüse (2) ein vorderes Ende aufweist, das in der Nähe der Stirnwand (5) des Drückers angeordnet ist, wobei das vordere Ende der Spritzdüse einen Durchmesser hat, der geringer ist als der Durchmesser des Auslaßkanals (4) und der Auslaßkanal an seinem Ende (4A) innere Zentriervorsprünge (11) aufweist, die das vordere Ende der Spritzdüse aufnehmen und zentrieren.
  5. Drücker nach einem beliebigen der vorhergehenden Ansprüche, bei dem der Auslaßkanal (4) einen Durchmesser von weniger als 3 mm hat.
  6. Drücker nach Anspruch 5, bei dem der Auslaßkanal (4) einen Durchmesser zwischen 2 und 3 mm hat.
EP91400753A 1990-03-21 1991-03-20 Druckknopf mit innerlicher Düse und seitlicher Projektion für eine Hochdruckzerstäubungspumpe mit hohem Tempo Expired - Lifetime EP0448467B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9003613A FR2659874B1 (fr) 1990-03-21 1990-03-21 Poussoir a gicleur interne, avec projection laterale, pour pompe de pulverisation a haute pression et a cadence rapide.
FR9003613 1990-03-21

Publications (2)

Publication Number Publication Date
EP0448467A1 EP0448467A1 (de) 1991-09-25
EP0448467B1 true EP0448467B1 (de) 1993-12-01

Family

ID=9394957

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91400753A Expired - Lifetime EP0448467B1 (de) 1990-03-21 1991-03-20 Druckknopf mit innerlicher Düse und seitlicher Projektion für eine Hochdruckzerstäubungspumpe mit hohem Tempo

Country Status (6)

Country Link
US (1) US5121883A (de)
EP (1) EP0448467B1 (de)
JP (1) JPH0671199A (de)
CA (1) CA2038619A1 (de)
DE (1) DE69100699T2 (de)
FR (1) FR2659874B1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2671986B1 (fr) * 1991-01-29 1995-05-12 Comceptair Anstalt Dispositif de pulverisation d'un liquide comportant un poussoir avec gicleur de pulverisation pour pompe a repetition.
DE19600123A1 (de) * 1996-01-04 1997-07-10 Pfeiffer Erich Gmbh & Co Kg Austragkopf für Medien, insbesondere zur medikamentösen Behandlung des Rachens
DE19756090A1 (de) * 1997-12-17 1999-06-24 Pfeiffer Erich Gmbh & Co Kg Spender für Medien
CA2253689A1 (en) * 1998-11-09 2000-05-09 Ted Szylowiec Method and apparatus for concentrating a gas using a single stage adsorption zone
CN105755757B (zh) * 2016-04-13 2024-01-12 青岛海尔洗衣机有限公司 具有自动调平功能的洗衣机底脚及洗衣机
CN106693240A (zh) * 2017-01-20 2017-05-24 华中科技大学无锡研究院 一种新型手提式高压细水雾灭火器
JP7694943B2 (ja) * 2021-06-18 2025-06-18 株式会社三谷バルブ 噴出ポンプ、および、噴出容器

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2974880A (en) * 1955-11-15 1961-03-14 Drackett Co Aerosol spray head
US3648932A (en) * 1969-10-27 1972-03-14 Pittway Corp Valve button with aspirator passageway
CH580987A5 (de) * 1974-11-05 1976-10-29 Krebs Theo Ag
US3961756A (en) * 1975-02-10 1976-06-08 National Chemsearch Corporation Adjustable-spray mechanism
GB1576075A (en) * 1976-04-12 1980-10-01 Union Carbide Australia Portable sprying device
BE866392A (fr) * 1978-04-26 1978-08-14 Staar Sa Dispositif de pulverisation pour la diffusion de liquides
FR2547737B1 (fr) * 1983-06-24 1988-04-08 Valois Sa Embout-poussoir pour pulverisateur medical
DE3836291A1 (de) * 1988-09-01 1990-03-15 Erich Wunsch Spraymechanismus fuer sprayflaschen
EP0424571A1 (de) * 1989-10-27 1991-05-02 Erich Wunsch Einrichtung zur Feinzerstäubung von Flüssigkeiten

Also Published As

Publication number Publication date
CA2038619A1 (en) 1991-09-22
EP0448467A1 (de) 1991-09-25
DE69100699D1 (de) 1994-01-13
FR2659874B1 (fr) 1992-07-17
JPH0671199A (ja) 1994-03-15
US5121883A (en) 1992-06-16
DE69100699T2 (de) 1994-04-28
FR2659874A1 (fr) 1991-09-27

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