EP1834703A2 - Discharge device for a flowable medium - Google Patents

Discharge device for a flowable medium Download PDF

Info

Publication number
EP1834703A2
EP1834703A2 EP07003381A EP07003381A EP1834703A2 EP 1834703 A2 EP1834703 A2 EP 1834703A2 EP 07003381 A EP07003381 A EP 07003381A EP 07003381 A EP07003381 A EP 07003381A EP 1834703 A2 EP1834703 A2 EP 1834703A2
Authority
EP
European Patent Office
Prior art keywords
discharge
pressure
discharge device
pressure plate
medium
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.)
Withdrawn
Application number
EP07003381A
Other languages
German (de)
French (fr)
Other versions
EP1834703A3 (en
Inventor
Miro Cater
Jürgen Greiner-Perth
Peter Stadelhofer
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.)
Aptar Radolfzell GmbH
Original Assignee
Erich Pfeiffer GmbH
Ing Erich Pfeiffer 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
Priority claimed from DE102006012898A external-priority patent/DE102006012898A1/en
Application filed by Erich Pfeiffer GmbH, Ing Erich Pfeiffer GmbH filed Critical Erich Pfeiffer GmbH
Priority to EP07003381A priority Critical patent/EP1834703A3/en
Priority to JP2007055560A priority patent/JP2007245142A/en
Priority to US11/716,999 priority patent/US20070210115A1/en
Publication of EP1834703A2 publication Critical patent/EP1834703A2/en
Publication of EP1834703A3 publication Critical patent/EP1834703A3/en
Withdrawn legal-status Critical Current

Links

Images

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
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0064—Lift valves
    • B05B11/0067—Lift valves having a valve seat located downstream the valve element (take precedence)
    • 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
    • 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
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
    • B05B1/3447—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the interface being a cylinder having the same axis as the outlet
    • 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
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
    • B05B1/3452—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the cooperating elements being movable, e.g. adjustable relative to one another
    • B05B1/3457—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the cooperating elements being movable, e.g. adjustable relative to one another in response to liquid pressure

Definitions

  • the invention relates to a discharge device for a flowable medium with a discharge sleeve, at one end of a discharge opening for discharging the medium is provided, and provided in the discharge closing pin, which is longitudinally displaceable relative to the discharge and through which the discharge opening is closed.
  • Discharge devices with such designs are known.
  • the disadvantage of you is that usually a high pressure medium within the discharge sleeve rests before the locking pin releases the discharge opening. This pressure results in a spray when opening, which should be avoided depending on the application.
  • the object of the invention is to develop the known from the prior art discharge devices, in particular with regard to an improved spray pattern.
  • a generic discharge device wherein the locking pin has an outwardly facing cylindrical portion and the discharge sleeve has an inwardly facing cylindrical portion, wherein the cylindrical portions form a transition fit or a tight clearance and wherein in the cylindrical portion of the locking pin and / or the discharge sleeve, a pressure-reducing and / or media flow-reducing effective geometry is provided.
  • the effective geometry is achieved in particular by a configuration with a small cross section through which the medium must flow. It thereby limits the liquid flow. This is of particular relevance for media for application to an eye, since a strong spray jet caused by a large liquid flow is undesirable in this application.
  • the effective geometry provided according to the invention represents an advantageous and structurally simple solution for reducing the liquid flow. This is particularly advantageous in discharge devices whose discharge openings are opened as a function of a medium pressure. It is particularly advantageous if a diffuser adjoins the media-flow-reducing geometry, in which the increased pressure is reduced again.
  • the embodiment with cylindrical sections ensures that the effect of the effective geometry does not depend on the relative position of the closing pin to the discharge sleeve, as would be the case for conical sections, the distance is also changed by an axial position change.
  • the closing pin is longitudinally displaceable in response to a fluid pressure of the medium in a pumping chamber of a pumping device of the discharge device and closes at a fluid pressure of the medium below a predetermined Boundary pressure the discharge opening.
  • the inventive design is particularly useful because the high pressure required for the relative displacement of the locking pin increases the risk of a problematic spray pattern.
  • At least one media channel is provided in the cylindrical section of the closing pin and / or the discharge sleeve.
  • a media channel represents a very simple form of a knitting geometry.
  • the media channel is preferably provided on the cylindrical portion of the locking pin, since then demolding during manufacture is easier to implement. In the simplest case, the media channel extends axially parallel to the direction of displacement of the locking pin.
  • the media channel extends helically.
  • Such extension leads to two advantages. On the one hand, a long media channel can be realized despite only short cylindrical sections.
  • the media channel with an outlet direction with a tangential component in interaction with a subsequent chamber in front of the outlet opening at the same time has the effect of a diffuser, which reduces the pressure and the speed at the exit from the outlet opening.
  • the closing pin is operatively connected to a pressure plate actuated by the internal pressure, wherein the closing pin is preferably formed integrally with the pressure plate.
  • a pressure plate makes it possible to achieve the conflicting objectives of displacement of the locking pin with only a small pressure medium on the one hand and the application of force to the closing pin in the closing direction with a high spring force.
  • the pressure plate leads through its large area that the spring force counteracting Opening force is already achieved by low pressure. This is also useful for improving media output.
  • the pressure plate surface is preferably larger than the area of the discharge opening for this purpose by at least a factor of five, preferably by a factor of ten.
  • the pressure plate consists at least partially of an elastic material, preferably of a material with an E-modulus below 1 kN / mm 2 , in particular with an E-modulus below 0.5 kN / mm 2 .
  • the elasticity causes short-term pressure peaks of the media pressure are intercepted by the pressure plate. This leads to an improved opening behavior of the discharge.
  • the combination of an effective geometry according to the invention with an elastic pressure plate has proven to be very suitable for ensuring an advantageous spray pattern.
  • Figs. 1 and 2 show a section 10 of a discharge device according to the invention in a partially sectioned perspective view and a partially sectioned side view.
  • the section 10 comprises a discharge sleeve 20, which is formed in the illustrated embodiment in one piece with an otherwise not shown housing of the discharge, and arranged in the discharge sleeve 20 closing pin 30, at the lower end of an integrally formed pressure plate 40 is connected.
  • the discharge sleeve 20 has at its upper end to a discharge opening 22, can escape through the medium in the use of the discharge.
  • This discharge opening 22 is closed in the non-actuated state of the discharge by a arranged at the upper end of the locking pin 30 sealing portion 32.
  • the closing force is applied by a valve spring, not shown, which presses together the unit of closing pin 30 and pressure plate 40 in the direction of 2.
  • a discharge operation is triggered by the pressure in a gap 50 between the discharge sleeve 20 and the unit of locking pin 30 and pressure plate 40 is increased by means not shown, in particular by a pump.
  • This increased pressure acts in a partial area 50a on the pressure plate 40, wherein due to the comparatively large area of the pressure plate 40 even a little increased pressure causes a significant opening force in a direction opposite to the direction 2.
  • This opening force causes a relative displacement of the locking pin 30 relative to the discharge sleeve 20 and thus opening of the discharge opening 22nd
  • the discharge sleeve 20 and the closing pin 30 have cylindrical partial sections 20a, 30a adapted to one another.
  • the outer diameter of the cylindrical portion 30a of the locking pin 30 and the inner diameter of the cylindrical portion 20a of the discharge sleeve 20 form a tight clearance fit.
  • a helical groove 34 is provided which forms a channel 34 for the escaping medium. Due to the tight clearance, it is the medium only through this groove 34 possible to reach from the intermediate space 50 to the discharge opening 22.
  • the groove is provided in the discharge sleeve-side cylinder portion instead of in the cylinder portion of the locking pin.
  • other shapes are possible, in the simplest case e.g. straight and aligned in the longitudinal direction of the locking pin grooves.

Landscapes

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

Abstract

A piston (24) is operatively connected to an actuating device (30) which can be manually pressed in a pumping direction, and held by a securing element (50) in a pressed-in state. The pumping direction forms approximately a right angle with the principal direction of an extent (2). A pumping device (20) has a pumping chamber (22) closed off on one side by the piston. The piston is movable longitudinally along the pumping direction to generate a discharge pressure.

Description

Anwendungsgebiet und Stand der TechnikField of application and state of the art

Die Erfindung betrifft eine Austragvorrichtung für ein fließfähiges Medium mit einer Austraghülse, an deren einem Ende eine Austragöffnung zum Austragen des Mediums vorgesehen ist, und einem in der Austraghülse vorgesehenen Schließstift, der relativ zur Austraghülse längsverschiebbar ist und durch den die Austragöffnung verschließbar ist.The invention relates to a discharge device for a flowable medium with a discharge sleeve, at one end of a discharge opening for discharging the medium is provided, and provided in the discharge closing pin, which is longitudinally displaceable relative to the discharge and through which the discharge opening is closed.

Austragvorrichtungen mit derartigen Gestaltungen sind bekannt. Nachteilig an Ihnen ist, dass zumeist ein hoher Mediumdruck innerhalb der Austragshülse anliegt, bevor der Schließstift die Austragöffnung freigibt. Dieser Druck führt beim Öffnen zu einem Sprühstrahl, der je nach Anwendungszweck vermieden werden soll.Discharge devices with such designs are known. The disadvantage of you is that usually a high pressure medium within the discharge sleeve rests before the locking pin releases the discharge opening. This pressure results in a spray when opening, which should be avoided depending on the application.

Aufgabe und LösungTask and solution

Die Aufgabe der Erfindung besteht darin, die aus dem Stand der Technik bekannten Austragvorrichtungen insbesondere in Hinblick auf ein verbessertes Sprühbild weiterzubilden.The object of the invention is to develop the known from the prior art discharge devices, in particular with regard to an improved spray pattern.

Diese Aufgabe wird gelöst durch eine gattungsgemäße Austragvorrichtung, bei der der Schließstift einen nach außen weisenden zylindrischen Teilabschnitt und die Austraghülse einen nach innen weisenden zylindrischen Teilabschnitt aufweist, wobei die zylindrischen Teilabschnitte eine Übergangspassung oder eine enge Spielpassung bilden und wobei im zylindrischen Teilabschnitt des Schließstifts und/oder der Austraghülse eine druckmindernde und/oder medienstrommindernde Wirkgeometrie vorgesehen ist.This object is achieved by a generic discharge device, wherein the locking pin has an outwardly facing cylindrical portion and the discharge sleeve has an inwardly facing cylindrical portion, wherein the cylindrical portions form a transition fit or a tight clearance and wherein in the cylindrical portion of the locking pin and / or the discharge sleeve, a pressure-reducing and / or media flow-reducing effective geometry is provided.

Die Wirkgeometrie wird insbesondere durch eine Ausgestaltung mit einem kleinen Querschnitt, durch den das Medium hindurchfließen muss, erreicht. Sie begrenzt dadurch den Flüssigkeitsstrom. Dies ist insbesondere bei Medien zur Applikation in ein Auge von Relevanz, da ein durch einen großen Flüssigkeitsstrom verursachter starker Sprühstrahl bei dieser Anwendung ungewünscht ist. Die erfindungsgemäße vorgesehene Wirkgeometrie stellt eine vorteilhafte und konstruktiv einfache Lösung zur Reduzierung des Flüssigkeitsstroms dar. Dies ist insbesondere bei Austragvorrichtungen vorteilhaft, deren Austragöffnung in Abhängigkeit eines Mediumdrucks geöffnet werden. Besonders vorteilhaft ist es, wenn sich an die medienstrommindernde Geometrie ein Diffusor anschließt, in dem der erhöhte Druck wieder reduziert wird.
Durch die Ausgestaltung mit zylindrischen Teilabschnitten wird erreicht, dass die Wirkung der Wirkgeometrie nicht von der Relativlage des Schließstifts zur Austragshülse abhängt, wie es beispielsweise bei konischen Teilabschnitten gegeben wäre, deren Abstand sich durch eine axiale Lageveränderung gleichfalls ändert.The effective geometry is achieved in particular by a configuration with a small cross section through which the medium must flow. It thereby limits the liquid flow. This is of particular relevance for media for application to an eye, since a strong spray jet caused by a large liquid flow is undesirable in this application. The effective geometry provided according to the invention represents an advantageous and structurally simple solution for reducing the liquid flow. This is particularly advantageous in discharge devices whose discharge openings are opened as a function of a medium pressure. It is particularly advantageous if a diffuser adjoins the media-flow-reducing geometry, in which the increased pressure is reduced again.
The embodiment with cylindrical sections ensures that the effect of the effective geometry does not depend on the relative position of the closing pin to the discharge sleeve, as would be the case for conical sections, the distance is also changed by an axial position change.

Bei einer Weiterbildung der Erfindung ist der Schließstift in Abhängigkeit eines Flüssigkeitsdrucks des Mediums in einer Pumpkammer einer Pumpvorrichtung der Austragvorrichtung längsverschiebbar und verschließt bei einem Flüssigkeitsdruck des Mediums unterhalb eines festgelegten Grenzdrucks die Austragöffnung. Bei dieser Art der druckabhängigen Schließstiftsteuerung ist die erfindungsgemäße Ausgestaltung besonders zweckmäßig, da der hohe Druck, der für die Relativverschiebung des Schließstifts erforderlich ist, die Gefahr eines problematischen Sprühbildes erhöht.In a further development of the invention, the closing pin is longitudinally displaceable in response to a fluid pressure of the medium in a pumping chamber of a pumping device of the discharge device and closes at a fluid pressure of the medium below a predetermined Boundary pressure the discharge opening. In this type of pressure-dependent locking pin control, the inventive design is particularly useful because the high pressure required for the relative displacement of the locking pin increases the risk of a problematic spray pattern.

Bei einer Weiterbildung der Erfindung ist im zylindrischen Teilabschnitt des Schließstifts und/oder der Austraghülse mindestens ein Medienkanal vorgesehen. Ein solcher Medienkanal stellt eine sehr einfache Form einer Wirkgeometrie dar. Der Medienkanal ist vorzugsweise auf dem zylindrischen Teilabschnitt des Schließstifts vorgesehen, da dann eine Entformung bei der Herstellung leichter zu realisieren ist. Im einfachsten Fall erstreckt sich der Medienkanal axial parallel zur Verschieberichtung des Schließstifts.In a further development of the invention, at least one media channel is provided in the cylindrical section of the closing pin and / or the discharge sleeve. Such a media channel represents a very simple form of a knitting geometry. The media channel is preferably provided on the cylindrical portion of the locking pin, since then demolding during manufacture is easier to implement. In the simplest case, the media channel extends axially parallel to the direction of displacement of the locking pin.

Bei einer besonders bevorzugten Ausführungsform erstreckt sich der Medienkanal schraubenförmig. Eine solche Erstreckung führt zu zwei Vorteilen. Zum einen ist dadurch trotz nur kurzer zylindrischer Teilabschnitte ein langer Medienkanal realisierbar. Zum anderen hat der Medienkanal mit einer Austrittsrichtung mit einer tangentialen Komponente im Zusammenspiel mit einer sich anschließenden Kammer vor der Austrittsöffnung gleichzeitig die Wirkung eines Diffusors, der den Druck und die Geschwindigkeit beim Austritt aus der Austrittsöffnung verringert.In a particularly preferred embodiment, the media channel extends helically. Such extension leads to two advantages. On the one hand, a long media channel can be realized despite only short cylindrical sections. On the other hand, the media channel with an outlet direction with a tangential component in interaction with a subsequent chamber in front of the outlet opening at the same time has the effect of a diffuser, which reduces the pressure and the speed at the exit from the outlet opening.

Bei einer bevorzugten Weiterbildung der Erfindung ist der Schließstift mit einem vom Innendruck betätigbaren Druckteller wirkverbunden, wobei der Schließstift mit dem Druckteller vorzugsweise einstückig ausgebildet ist. Ein solcher Druckteller erlaubt es, die sich an sich widersprechenden Ziele der Verschiebung des Schließstifts bei nur geringem Mediendruck einerseits und der Kraftbeaufschlagung der Schließstifts in Schließrichtung mit einer hohen Federkraft zu erreichen. Der Druckteller führt durch seine große Fläche dazu, dass die der Federkraft entgegenwirkende Öffnungskraft schon durch geringen Druck erreicht wird. Auch dies ist einer Verbesserung des Medienaustrags dienlich. Die Drucktellerfläche ist gegenüber der Fläche der Austragöffnung zu diesem Zweck vorzugsweise mindestens um Faktor fünf größer, vorzugsweise um Faktor zehn.In a preferred embodiment of the invention, the closing pin is operatively connected to a pressure plate actuated by the internal pressure, wherein the closing pin is preferably formed integrally with the pressure plate. Such a pressure plate makes it possible to achieve the conflicting objectives of displacement of the locking pin with only a small pressure medium on the one hand and the application of force to the closing pin in the closing direction with a high spring force. The pressure plate leads through its large area that the spring force counteracting Opening force is already achieved by low pressure. This is also useful for improving media output. The pressure plate surface is preferably larger than the area of the discharge opening for this purpose by at least a factor of five, preferably by a factor of ten.

Besonders bevorzugt ist es, wenn der Druckteller zumindest teilweise aus einem elastischen Material besteht, vorzugsweise aus einem Material mit einem E-Modul unterhalb von 1 kN/mm2, insbesondere mit einem E-Modul unterhalb von 0,5 kN/mm2. Die Elastizität führt dazu, dass kurzzeitige Druckspitzen des Mediendrucks durch den Druckteller abgefangen werden. Dies führt zu einem verbesserten Öffnungsverhalten der Austragvorrichtung. Insbesondere die Kombination aus einer erfindungsgemäßen Wirkgeometrie mit einem elastischen Druckteller hat sich als sehr gut geeignet zur Gewährleistung eines vorteilhaften Sprühbildes erwiesen.It is particularly preferred if the pressure plate consists at least partially of an elastic material, preferably of a material with an E-modulus below 1 kN / mm 2 , in particular with an E-modulus below 0.5 kN / mm 2 . The elasticity causes short-term pressure peaks of the media pressure are intercepted by the pressure plate. This leads to an improved opening behavior of the discharge. In particular, the combination of an effective geometry according to the invention with an elastic pressure plate has proven to be very suitable for ensuring an advantageous spray pattern.

Kurzbeschreibung der ZeichnungenBrief description of the drawings

Weitere Vorteile und Merkmale der Erfindung ergeben sich aus den Ansprüchen sowie der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispiels der Erfindung, das anhand der Zeichnungen dargestellt ist. Dabei zeigen:

Fig. 1 und 2
eine erfindungsgemäße Austragvorrichtung in einer teilweise geschnittenen perspektivischen Darstellung und einer teilweise geschnittenen Seitenansicht, wobei jeweils nur der erfindungsrelevante Teil der Austragvorrichtung dargestellt ist.
Further advantages and features of the invention will become apparent from the claims and the following description of a preferred embodiment of the invention, which is illustrated by the drawings. Showing:
Fig. 1 and 2
a discharge device according to the invention in a partially sectioned perspective view and a partially sectioned side view, in each case only the invention relevant part of the discharge is shown.

Detaillierte Beschreibung der AusführungsbeispieleDetailed description of the embodiments

Die Fig. 1 und 2 zeigen eine Abschnitt 10 einer erfindungsgemäßen Austragvorrichtung in einer teilweise geschnittenen perspektivischen Darstellung und einer teilweise geschnittenen Seitenansicht.Figs. 1 and 2 show a section 10 of a discharge device according to the invention in a partially sectioned perspective view and a partially sectioned side view.

Der Abschnitt 10 umfasst eine Austraghülse 20, die bei der dargestellten Ausführungsform einstückig mit einem im Übrigen nicht dargestellten Gehäuse der Austragvorrichtung ausgebildet ist, sowie einen in der Austraghülse 20 angeordneten Schließstift 30, an dessen unterem Ende sich ein einstückig angeformter Druckteller 40 anschließt.The section 10 comprises a discharge sleeve 20, which is formed in the illustrated embodiment in one piece with an otherwise not shown housing of the discharge, and arranged in the discharge sleeve 20 closing pin 30, at the lower end of an integrally formed pressure plate 40 is connected.

Die Austraghülse 20 weist an ihrem oberen Ende eine Austragöffnung 22 auf, durch die Medium bei der Verwendung der Austragvorrichtung entweichen kann. Diese Austragöffnung 22 ist im nicht betätigten Zustand der Austragvorrichtung durch einen am oberen Ende des Schließstifts 30 angeordneten Dichtabschnitt 32 verschlossen. Die Schließkraft wird durch eine nicht dargestellte Ventilfeder aufgebracht, die die Einheit aus Schließstift 30 und Druckteller 40 gemeinsam nach oben in Richtung 2 drückt.The discharge sleeve 20 has at its upper end to a discharge opening 22, can escape through the medium in the use of the discharge. This discharge opening 22 is closed in the non-actuated state of the discharge by a arranged at the upper end of the locking pin 30 sealing portion 32. The closing force is applied by a valve spring, not shown, which presses together the unit of closing pin 30 and pressure plate 40 in the direction of 2.

Ein Austragvorgang wird ausgelöst, indem durch nicht näher dargestellte Mittel, insbesondere durch eine Pumpe, der Druck in einem Zwischenraum 50 zwischen der Austraghülse 20 und der Einheit aus Schließstift 30 und Druckteller 40 erhöht wird. Dieser erhöhte Druck wirkt in einem Teilbereich 50a auf den Druckteller 40, wobei aufgrund der vergleichsweise großen Fläche des Drucktellers 40 schon ein wenig erhöhter Druck eine erhebliche Öffnungskraft in einer der Richtung 2 entgegengesetzten Richtung bewirkt. Diese Öffnungskraft bewirkt eine Relativverschiebung des Schließstifts 30 relativ zur Austraghülse 20 und damit ein Öffnen der Austragöffnung 22.A discharge operation is triggered by the pressure in a gap 50 between the discharge sleeve 20 and the unit of locking pin 30 and pressure plate 40 is increased by means not shown, in particular by a pump. This increased pressure acts in a partial area 50a on the pressure plate 40, wherein due to the comparatively large area of the pressure plate 40 even a little increased pressure causes a significant opening force in a direction opposite to the direction 2. This opening force causes a relative displacement of the locking pin 30 relative to the discharge sleeve 20 and thus opening of the discharge opening 22nd

In einem Bereich 60 weisen die Austraghülse 20 und der Schließstift 30 aufeinander angepasste zylindrische Teilabschnitte 20a, 30a auf. Der Außendurchmesser des zylindrische Teilabschnitt 30a des Schließstifts 30 und der Innendurchmesser des zylindrischen Teilabschnitts 20a der Austragshülse 20 bilden eine enge Spielpassung. Im zylindrischen Teilabschnitt 30a des Schließstifts 30 ist eine schraubenförmige 34 Nut vorgesehen, die einen Kanal 34 für das entweichende Medium bildet. Aufgrund der engen Spielpassung ist es dem Medium nur durch diese Nut 34 möglich, vom Zwischenraum 50 zur Austragsöffnung 22 zu gelangen.In a region 60, the discharge sleeve 20 and the closing pin 30 have cylindrical partial sections 20a, 30a adapted to one another. The outer diameter of the cylindrical portion 30a of the locking pin 30 and the inner diameter of the cylindrical portion 20a of the discharge sleeve 20 form a tight clearance fit. In the cylindrical portion 30a of the locking pin 30, a helical groove 34 is provided which forms a channel 34 for the escaping medium. Due to the tight clearance, it is the medium only through this groove 34 possible to reach from the intermediate space 50 to the discharge opening 22.

Bei Betätigung der Austragvorrichtung wird der Schließstift 30 in einer in den Fig. 1 und 2 nicht näher dargestellten Art und Weise durch einen erhöhten Flüssigkeitsdruck des Mediums entgegen der Richtung 2 relativ zur Austraghülse 20 verschoben, so dass die Austragöffnung 22 vom Dichtabschnitt 32 am oberen Ende des Schließstifts 30 freigegeben wird. Das unter Druck stehende Medium gelangt dann durch die Nut 34 hindurch bis zur geöffneten Austragöffnung 22, wobei die Nut in Art eines Drosselventils den Flüssigkeitsstrom des Mediums verringert. Der Flüssigkeitsstrom entweicht am oberen Ende aus der Nut 34 in einen Zwischenraum 52, der als Diffusor wirkt. In diesem Zwischenraum verringerte sich der Flüssigkeitsdruck und das Medium wird mit vermindertem Druck durch die Austragöffnung 22 ausgegeben.Upon actuation of the discharge of the locking pin 30 is displaced in a manner not shown in Figs. 1 and 2 by an increased fluid pressure of the medium against the direction 2 relative to the discharge sleeve 20, so that the discharge opening 22 from the sealing portion 32 at the upper end of the locking pin 30 is released. The pressurized medium then passes through the groove 34 to the open discharge opening 22, wherein the groove in the manner of a throttle valve reduces the fluid flow of the medium. The liquid stream escapes at the upper end of the groove 34 in a gap 52 which acts as a diffuser. In this space, the liquid pressure decreased and the medium is discharged at a reduced pressure through the discharge port 22.

Bei einer nicht dargestellten Ausführungsform ist die Nut im austraghülsenseitigen Zylinderabschnitt statt im Zylinderabschnitt des Schließstifts vorgesehen. Darüber hinaus sind auch andere Formgebungen möglich, im einfachsten Falle z.B. gerade und in Längsrichtung der Schließstifts ausgerichtete Nuten.In one embodiment, not shown, the groove is provided in the discharge sleeve-side cylinder portion instead of in the cylinder portion of the locking pin. In addition, other shapes are possible, in the simplest case e.g. straight and aligned in the longitudinal direction of the locking pin grooves.

Claims (7)

Austragvorrichtung für ein fließfähiges Medium mit - einer Austraghülse (20), an deren einem Ende eine Austragöffnung (22) zum Austragen des Mediums vorgesehen ist, und - einem in der Austraghülse (20) vorgesehenen Schließstift (30), der relativ zur Austraghülse (20) längsverschiebbar ist und durch den die Austragöffnung (22) verschließbar ist, dadurch gekennzeichnet, dass
der Schließstift (30) einen nach außen weisenden zylindrischen Teilabschnitt (30a) und die Austraghülse (20) einen nach innen weisenden zylindrischen Teilabschnitt (20a) aufweist, wobei die zylindrischen Teilabschnitte (20a, 30a) eine Übergangspassung oder eine enge Spielpassung bilden und wobei im zylindrischen Teilabschnitt (20a, 30a) des Schließstifts (30) und/oder der Austraghülse (20) eine druckmindernde und/oder medienstrommindernde Wirkgeometrie (34) vorgesehen ist.Discharge device for a flowable medium with - A discharge (20), at one end of a discharge opening (22) is provided for discharging the medium, and a closing pin (30) provided in the discharge sleeve (20) which is longitudinally displaceable relative to the discharge sleeve (20) and by which the discharge opening (22) can be closed, characterized in that
the locking pin (30) has an outwardly facing cylindrical portion (30a) and the discharge sleeve (20) has an inwardly facing cylindrical portion (20a), wherein the cylindrical portions (20a, 30a) form a transition fit or a tight clearance fit and wherein in cylindrical section (20a, 30a) of the locking pin (30) and / or the discharge sleeve (20) a pressure-reducing and / or media flow-reducing effective geometry (34) is provided. Austragvorrichtung nach Anspruch 1,
dadurch gekennzeichnet, dass
der Schließstift (30) in Abhängigkeit eines Flüssigkeitsdrucks des Mediums in einer Pumpkammer einer Pumpvorrichtung der Austragvorrichtung längsverschiebbar ist und bei einem Flüssigkeitsdruck des Mediums unterhalb eines festgelegten Grenzdrucks die Austragöffnung (22) verschließt.Discharge device according to claim 1,
characterized in that
the closing pin (30) is longitudinally displaceable as a function of a fluid pressure of the medium in a pumping chamber of a pump device of the discharge device and closes the discharge opening (22) at a fluid pressure of the medium below a defined limit pressure. Austragvorrichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass
im zylindrischen Teilabschnitt (20a, 30a) des Schließstifts (30) und/oder der Austraghülse (20) mindestens ein Medienkanal (34) vorgesehen ist.Discharge device according to claim 1 or 2,
characterized in that
in the cylindrical portion (20a, 30a) of the locking pin (30) and / or the discharge sleeve (20) at least one media channel (34) is provided. Austragvorrichtung nach Anspruch 3,
dadurch gekennzeichnet, dass
der Medienkanal (34) sich schraubenförmig erstreckt.Discharge device according to claim 3,
characterized in that
the media channel (34) extends helically. Austragvorrichtung nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass
der Schließstift (30) mit einem vom Innendruck betätigbaren Druckteller (40) wirkverbunden ist, wobei der Schließstift (30) mit dem Druckteller (40) vorzugsweise einstückig ausgebildet ist.Discharge device according to one of the preceding claims,
characterized in that
the closing pin (30) is operatively connected to a pressure plate (40) which can be actuated by the internal pressure, wherein the closing pin (30) is preferably integrally formed with the pressure plate (40). Austragvorrichtung nach Anspruch 5,
dadurch gekennzeichnet, dass
der Druckteller (40) eine Drucktellerfläche die gegenüber der Fläche der Austragöffnung (22) mindestens um Faktor fünf größer ist, vorzugsweise um Faktor zehn.Discharge device according to claim 5,
characterized in that
the pressure plate (40) has a pressure plate surface which is larger than the surface of the discharge opening (22) by at least a factor of five, preferably by a factor of ten. Austragvorrichtung nach Anspruch 5 oder 6,
dadurch gekennzeichnet, dass
der Druckteller (40) zumindest teilweise aus einem elastischen Material besteht, vorzugsweise mit einem E-Modul unterhalb von 1 kN/mm2, insbesondere mit einem E-Modul unterhalb von 0,5 kN/mm2. Discharge device according to claim 5 or 6,
characterized in that
the pressure plate (40) consists at least partially of an elastic material, preferably with an E-modulus below 1 kN / mm 2 , in particular with an E-modulus below 0.5 kN / mm 2.
EP07003381A 2006-03-13 2007-02-17 Discharge device for a flowable medium Withdrawn EP1834703A3 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP07003381A EP1834703A3 (en) 2006-03-13 2007-02-17 Discharge device for a flowable medium
JP2007055560A JP2007245142A (en) 2006-03-13 2007-03-06 Discharge apparatus for flowing substance
US11/716,999 US20070210115A1 (en) 2006-03-13 2007-03-12 Discharger for a flowable medium

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006012898A DE102006012898A1 (en) 2006-03-13 2006-03-13 Discharge device for a flowable medium
EP07003381A EP1834703A3 (en) 2006-03-13 2007-02-17 Discharge device for a flowable medium

Publications (2)

Publication Number Publication Date
EP1834703A2 true EP1834703A2 (en) 2007-09-19
EP1834703A3 EP1834703A3 (en) 2008-11-05

Family

ID=39494967

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07003381A Withdrawn EP1834703A3 (en) 2006-03-13 2007-02-17 Discharge device for a flowable medium

Country Status (3)

Country Link
US (1) US20070210115A1 (en)
EP (1) EP1834703A3 (en)
JP (1) JP2007245142A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2767346A3 (en) * 2013-02-16 2014-11-19 Aptar Radolfzell GmbH Dispenser for discharging liquids comprising a perforated plate nozzle

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2950037B1 (en) 2009-09-11 2011-12-16 Rexam Pharma La Verpilliere DEVICE FOR DISTRIBUTING LIQUID
CN104907198B (en) * 2015-07-14 2017-01-25 河南农业大学 Leakage-proof inner spiral controllable pressure nozzle
RU2742456C1 (en) * 2017-02-01 2021-02-05 Силган Диспенсинг Системз Хемер Гмбх Releasing device for liquid medium
JP6976184B2 (en) * 2018-01-31 2021-12-08 株式会社吉野工業所 A coating container that weighs and applies the contents
CA3113531C (en) * 2018-10-05 2022-04-19 Bryan Campbell Pump-activated feeding container

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB398788A (en) * 1931-12-12 1933-09-21 Otto Treichel Improvements in or relating to apparatus for spraying liquids
US2017467A (en) * 1934-11-23 1935-10-15 Leavitt R Loomis Spray nozzle
US2656218A (en) * 1949-07-21 1953-10-20 John F Campbell Spray nozzle
US2749182A (en) * 1953-01-27 1956-06-05 John F Campbell Nozzle construction
US3515351A (en) * 1968-09-11 1970-06-02 Rain Bird Sprinkler Mfg Impact motor driven pop-up sprinkler
NL152462B (en) * 1969-12-08 1977-03-15 Diamonat Limited NOZZLE PUMP.
CA1149224A (en) * 1980-04-14 1983-07-05 Frank J. Doyle Press spray dampener
DE19633260A1 (en) * 1996-08-17 1998-02-19 Bosch Gmbh Robert Injection valve, in particular for injecting fuel directly into a combustion chamber of an internal combustion engine
FR2854821B1 (en) * 2003-05-16 2006-12-08 Oreal ASSEMBLY FOR PACKAGING AND DISPENSING A PRODUCT, IN PARTICULAR IN THE FORM OF A SAMPLE
US7389942B2 (en) * 2005-12-01 2008-06-24 Patrick Kenyon Pop-up bubbler assembly for dispensing fluid

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2767346A3 (en) * 2013-02-16 2014-11-19 Aptar Radolfzell GmbH Dispenser for discharging liquids comprising a perforated plate nozzle
US9463476B2 (en) 2013-02-16 2016-10-11 Aptar Radolfzell Gmbh Dispenser for dispensing liquids
US10099229B2 (en) 2013-02-16 2018-10-16 Aptar Radolfzell Gmbh Dispenser for dispensing liquids

Also Published As

Publication number Publication date
US20070210115A1 (en) 2007-09-13
JP2007245142A (en) 2007-09-27
EP1834703A3 (en) 2008-11-05

Similar Documents

Publication Publication Date Title
EP1260159B1 (en) Damper, especially for furniture
EP0530785B1 (en) Dispensing device for media
DE10334032B4 (en) valve means
EP1834703A2 (en) Discharge device for a flowable medium
DE2700058C2 (en) Valve arrangement
DE1282388B (en) Device for the separation of media of different viscosities
DE202007008833U9 (en) Device for cushioning
EP2962022B1 (en) Overflow valve
EP3680484A1 (en) Seat valve
EP1450082B1 (en) Pressure limiting valve
DE102006051857B4 (en) check valve
EP0846904A1 (en) Direct-acting valve.
DE4307265C1 (en) Device for the end-position damping of a piston in pressure-fluid cylinders
DE19852409A1 (en) Pressure relief valve, especially for vehicles
DE102004049253B4 (en) thermostatic valve
DE19626323A1 (en) Safety valve unit for unit working with pressure means
DE102010044824B4 (en) Valve
DE10247774B4 (en) Flow control valve
EP0866253A2 (en) Check valve
DE29812712U1 (en) End position damping for a piston-cylinder unit
DD154841A5 (en) ELASTOMERIC DAEMPFEREINRICHTUNG
DE3040220C1 (en) Changeover valve for compound counters
DE8704186U1 (en) Directional valve
EP0924438B1 (en) Combined valve assembly
DE2361918A1 (en) Control valve for high pressure differentials - has cylindrical hollow valve with holes which are parallel and facing to reduce noise

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

AKX Designation fees paid
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20090824

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566