EP0242543B1 - Valve, in particular one in a dosage cartouche for a liquid atomizer - Google Patents

Valve, in particular one in a dosage cartouche for a liquid atomizer Download PDF

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Publication number
EP0242543B1
EP0242543B1 EP87102969A EP87102969A EP0242543B1 EP 0242543 B1 EP0242543 B1 EP 0242543B1 EP 87102969 A EP87102969 A EP 87102969A EP 87102969 A EP87102969 A EP 87102969A EP 0242543 B1 EP0242543 B1 EP 0242543B1
Authority
EP
European Patent Office
Prior art keywords
valve
valve according
case
outlet holes
bead
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
EP87102969A
Other languages
German (de)
French (fr)
Other versions
EP0242543A1 (en
Inventor
Jürgen Friedrich
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.)
Siemens AG
Original Assignee
Siemens AG
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
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0242543A1 publication Critical patent/EP0242543A1/en
Application granted granted Critical
Publication of EP0242543B1 publication Critical patent/EP0242543B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B05B11/007—Outlet valves actuated by the pressure of the fluid to be sprayed being opened by deformation of a sealing element made of resiliently deformable material, e.g. flaps, skirts, duck-bill valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/44—Valves specially adapted therefor; Regulating devices
    • B65D83/52—Valves specially adapted therefor; Regulating devices for metering

Definitions

  • the invention relates to a device according to the preamble of claim 1, as is known from US-A 2 651 322.
  • the object of the invention is to provide a valve which makes it possible to bring a precisely metered drop of liquid from a metering cartridge onto a small area of an atomizer.
  • a drop with a low exit velocity forms at the valve opening, which drop is picked up and atomized by the atomizing plate. It is thus possible to bring a precisely metered drop of liquid from the metering cartridge onto a small area of the atomizer.
  • the rate of drop formation is determined by the prestressing of the elastic sheathing and by the size of the passage openings, be it slots or channels or a groove in the bead or surface roughness of the bead.
  • the sleeve can be made of any solid material such as e.g. Metal, in particular V 2A steel, ceramic or a dimensionally stable plastic, for example a thermoplastic such as polyethylene.
  • Natural and synthetic rubber and known shrink tubing materials are suitable for the elastic sheathing, in particular a silicone rubber tubing.
  • valves according to the invention are preferably suitable for atomizing medicinal substances, in particular those used for inhalation, and for atomizing cosmetic liquids, such as e.g. Perfumes.
  • a valve 10 has an annular bead 1 in the upper region with small axial slot-shaped passage openings 2.
  • a valve rubber (casing) 3 made of silicone rubber surrounds a metal sleeve 6. If the cartridge is now actuated with a high trigger pressure, the liquid becomes behind the front bulge under the expanding valve rubber.
  • a check valve 4 is arranged in the lower part of the metal sleeve 6 at the transition to a feed pipe 9. This prevents the liquid from flowing back into the cartridge.
  • the prestressed valve rubber continuously presses the liquid from the resulting buffer space 5 through the passage openings 2 of the bead 1 to the valve opening 11.
  • the bead 1 in the case of a valve with a sleeve 6 made of a thermoplastic, has small axial channels 12 as passage openings with a diameter of approximately 0.2 mm.
  • FIG. 5 illustrates a sandpaper-like roughening (structure) 14 of the surface of the bead 1.
  • the groove 13 or the roughening 14 form the passage openings.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Description

Die Erfindung bezieht sich auf eine Vorrichtung nach dem Oberbegriff des Patentanspruches 1, wie sie aus der US-A 2 651 322 bekannt ist.The invention relates to a device according to the preamble of claim 1, as is known from US-A 2 651 322.

Bei weiteren bekannten Geräten erfolgt die Dosierung eines flüssigen Wirkstoffes auf mechanischem Wege. Es wird kurzzeitig ein Sprühventil betätigt. Vielfach ist ein genauer Austritt des dosierten flüssigen Wirkstoffes erforderlich. Da aber der Auslösedruck vom Anwender beeinflußt wird, sind bei den bekannten Vorrichtungen keine konstanten Austrittsgeschwindigkeiten erhältlich. Die Tropfen erscheinen nicht mit einer konstanten Austrittsgeschwindigkeit an der Ventilöffnung. Bei zu starkem Auslösedruck auf die Dosierkartusche spritzt die zu zerstäubende Flüssigkeit aus der Ventilöffnung und gelangt nicht - oder nur teilweise - auf den Zerstäuberteller.In other known devices, the metering of a liquid active ingredient takes place mechanically. A spray valve is actuated briefly. In many cases, an exact exit of the dosed liquid active ingredient is required. However, since the trigger pressure is influenced by the user, no constant exit speeds are available in the known devices. The drops do not appear at the valve opening at a constant exit speed. If the trigger pressure on the dosing cartridge is too strong, the liquid to be atomized sprays out of the valve opening and does not - or only partially - get onto the atomizing plate.

Aufgabe der Erfindung ist es ein Ventil zu schaffen, das es ermöglicht, einen genau dosierten Flüssigkeitstropfen von einer Dosierkartusche auf eine kleine Fläche eines Zerstäubers zu bringen.The object of the invention is to provide a valve which makes it possible to bring a precisely metered drop of liquid from a metering cartridge onto a small area of an atomizer.

Diese Aufgabe wird bei der im Oberbegriff des Patentanspruches 1 angegebenen Vorrichtung erfindungsgemäß mit den Merkmalen des kennzeichnenden Teils des Patentanspruches 1 gelöst.This object is achieved according to the invention in the device specified in the preamble of patent claim 1 with the features of the characterizing part of patent claim 1.

Weitere Ausgestaltungen und Weiterbildungen der Erfindung gehen aus den Unteransprüchen hervor.Further refinements and developments of the invention emerge from the subclaims.

Bei einem Ventil gemäß der Erfindung bildet sich an der Ventilöffnung unabhängig vom Betätigungsdruck ein Tropfen mit geringer Austrittsgeschwindigkeit, der vom Zerstäuberteller aufgenommen und zerstäubt wird. Es ist somit möglich, einen genau dosierten Flüssigkeitstropfen von der Dosierkartusche auf eine kleine Fläche des Zerstäubers zu bringen. Die Geschwindigkeit der Tropfenbildung wird durch die Vorspannung der elastischen Ummantelung und durch die Größe der Durchlaßöffnungen, seien es Schlitze oder Kanäle oder auch eine Rinne in dem Wulst oder Oberflächenrauhigkeit des Wulstes bestimmt.In the case of a valve according to the invention, a drop with a low exit velocity forms at the valve opening, which drop is picked up and atomized by the atomizing plate. It is thus possible to bring a precisely metered drop of liquid from the metering cartridge onto a small area of the atomizer. The rate of drop formation is determined by the prestressing of the elastic sheathing and by the size of the passage openings, be it slots or channels or a groove in the bead or surface roughness of the bead.

Die Hülse kann aus einem beliebigen festen Material, wie z.B. Metall, insbesondere V 2A-Stahl, Keramik oder einem formstabilen Kunststoff bestehen, beispielsweise einem Thermoplasten wie Polyäthylen.The sleeve can be made of any solid material such as e.g. Metal, in particular V 2A steel, ceramic or a dimensionally stable plastic, for example a thermoplastic such as polyethylene.

Für die elastische Ummantelung sind natürliche und synthetische Gummi und bekannte Schrumpfschlauchmaterialien geeignet, insbesondere ein Silikonkautschukschlauch.Natural and synthetic rubber and known shrink tubing materials are suitable for the elastic sheathing, in particular a silicone rubber tubing.

Die erfindungsgemäßen Ventile eignen sich vorzugsweise für die Zerstäubung von Arzneistoffen, insbesondere solchen, die zur Inhalation eingesetzt werden, sowie zum Zerstäuben von kosmetischen Flüssigkeiten, wie z.B. Parfüms.The valves according to the invention are preferably suitable for atomizing medicinal substances, in particular those used for inhalation, and for atomizing cosmetic liquids, such as e.g. Perfumes.

Weitere Erläuterungen der Erfindung gehen aus der anhand der Zeichnung gegebenen Beschreibung von bevorzugten Ausführungsbeispielen hervor.Further explanations of the invention emerge from the description of preferred exemplary embodiments given with reference to the drawing.

  • FIG 1 zeigt im Schnitt ein Ventil gemäß der Erfindung mit kleinen achsialen schlitzförmigen Durchlaßöffnungen.1 shows in section a valve according to the invention with small axial slit-shaped passage openings.
  • FIG 2 zeigt die Vorrichtung nach FIG 1 im Schnitt entlang der Linie II-II.2 shows the device according to FIG. 1 in section along the line II-II.
  • FIG 3 zeigt im Schnitt ein Ventil gemäß der Erfindung mit kleinen achsialen Kanälen.3 shows in section a valve according to the invention with small axial channels.
  • FIG 4 zeigt im Schnitt ein Ventil gemäß der Erfindung mit einer Rinne.4 shows in section a valve according to the invention with a channel.
  • FIG 5 zeigt im Schnitt ein Ventil gemäß der Erfindung mit einer Oberflächenrauhigkeit des Wulstes.5 shows in section a valve according to the invention with a surface roughness of the bead.

Bei einer Ausführung gemäß FIG 1 besitzt ein Ventil 10 im oberen Bereich einen ringförmigen Wulst 1 mit kleinen achsialen schlitzförmigen Durchlaßöffnungen 2. Ein Ventilgummi (Ummantelung) 3 aus Silikonkautschuk umschließt eine Metallhülse 6. Betätigt man jetzt die Kartusche mit hohem Auslösedruck, so wird die Flüssigkeit hinter der vorderen Aufwulstung unter den sich aufweitenden Ventilgummi gedrückt. Im unteren Teil der Metallhülse 6 am Übergang zu einem Zuführrohr 9 ist ein Rückschlagventil 4 angeordnet. Dieses verhindert ein Zurückfließen der Flüssigkeit in die Kartusche. Der vorgespannte Ventilgummi drückt die Flüssigkeit aus dem entstandenen Pufferraum 5 durch die Durchlaßöffnungen 2 des Wulstes 1 kontinuierlich zur Ventilöffnung 11.In an embodiment according to FIG. 1, a valve 10 has an annular bead 1 in the upper region with small axial slot-shaped passage openings 2. A valve rubber (casing) 3 made of silicone rubber surrounds a metal sleeve 6. If the cartridge is now actuated with a high trigger pressure, the liquid becomes behind the front bulge under the expanding valve rubber. A check valve 4 is arranged in the lower part of the metal sleeve 6 at the transition to a feed pipe 9. This prevents the liquid from flowing back into the cartridge. The prestressed valve rubber continuously presses the liquid from the resulting buffer space 5 through the passage openings 2 of the bead 1 to the valve opening 11.

Gemäß einer Ausführung nach FIG 3 weist bei einem Ventil mit einer Hülse 6 aus einem Thermoplast die Wulst 1 kleine achsiale Kanäle 12 als Durchlaßöffnungen mit einem Durchmesser von ca. 0,2 mm auf.According to an embodiment according to FIG. 3, in the case of a valve with a sleeve 6 made of a thermoplastic, the bead 1 has small axial channels 12 as passage openings with a diameter of approximately 0.2 mm.

Gemäß FIG 4 ist über die gesamte Oberfläche des Wulstes 1, der aus einem Thermoplasten besteht, eine achsial verlaufende Rinne 13 angebracht. Eine sandpapierartige Aufrauhung (Struktur) 14 der Oberfläche des Wulstes 1 veranschaulicht FIG 5. Rinne 13 bzw. die Aufrauhung 14 bilden die Durchlaßöffnungen.According to FIG 4, an axially extending groove 13 is attached over the entire surface of the bead 1, which consists of a thermoplastic. FIG. 5 illustrates a sandpaper-like roughening (structure) 14 of the surface of the bead 1. The groove 13 or the roughening 14 form the passage openings.

Claims (7)

1. A valve, in particular in dosing cartridges for liquid atomizers with a case (6) provided with apertures (7) with a sheath (3) of a flexible material and with a feed pipe (9) for a liquid to be atomized, characterised in that the case (6) of the valve has in the upper region an annular bead (1) with small axial outlet holes (2, 12, 13, 14) and that arranged between the feed pipe (9) and the case (6) there is a non-return valve (4).
2. A valve according to claim 1, characterised in that the case (6) consists of metal and the sheath (3) of silicone rubber.
3. A valve according to claim 1, characterised in that the case (6) consists of thermoplastic and the sheath (3) of a silicone rubber tubing.
4. A valve according to claims 1 to 3, characterised in that the outlet holes are slot-shaped.
5. A valve according to claims 1 to 3, characterised in that the outlet holes are channels (12).
6. A valve according to claims 1 to 3, characterised in that the bead (1) has an axially extending groove (13) forming the outlet holes.
7. A valve according to claims 1 to 3, characterised in that the surface of the bead (1) has a sandpaper-type texture (14), forming the outlet holes.
EP87102969A 1986-03-14 1987-03-03 Valve, in particular one in a dosage cartouche for a liquid atomizer Expired - Lifetime EP0242543B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3608621 1986-03-14
DE19863608621 DE3608621A1 (en) 1986-03-14 1986-03-14 VALVE, ESPECIALLY IN DOSING CARTRIDGES FOR LIQUID SPRAYERS

Publications (2)

Publication Number Publication Date
EP0242543A1 EP0242543A1 (en) 1987-10-28
EP0242543B1 true EP0242543B1 (en) 1990-03-21

Family

ID=6296406

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87102969A Expired - Lifetime EP0242543B1 (en) 1986-03-14 1987-03-03 Valve, in particular one in a dosage cartouche for a liquid atomizer

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EP (1) EP0242543B1 (en)
DE (2) DE3608621A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3713878A1 (en) * 1987-04-25 1988-11-10 Schubert & Salzer Maschinen A PIPE INTERRUPTING CONNECTING LINE FOR A TAP POINT
DK722388A (en) * 1988-12-23 1990-06-24 Dgt Volmatic As Drip irrigation system and drip nozzle
US5727733A (en) * 1996-01-19 1998-03-17 Gideon Ruttenberg Pulsating devices
GB0803465D0 (en) * 2008-02-26 2008-04-02 Billericay Farm Services Ltd Flow control device
GB201006583D0 (en) * 2010-04-20 2010-06-02 Billericay Farm Services Ltd Flow control nozzle
DE102019114670A1 (en) * 2019-05-31 2020-12-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Dosing valve, mixing device and method for mixing reactive components and the use of a dosing valve
DE102022103256A1 (en) 2022-02-11 2023-08-17 Prominent Gmbh dosing lance

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH244492A (en) * 1944-07-06 1946-09-15 Hage David Valve.
US2651322A (en) * 1949-09-10 1953-09-08 Union Carbide & Carbon Corp Dry backfire arrester
US3179124A (en) * 1962-10-15 1965-04-20 John M Haring Valve
JPS478565A (en) * 1970-10-09 1972-05-06 Bosch Gmbh Robert Fluidic logic device

Also Published As

Publication number Publication date
DE3762001D1 (en) 1990-04-26
DE3608621A1 (en) 1987-09-17
EP0242543A1 (en) 1987-10-28

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