EP3072597B1 - Abgabevorrichtung für ein fluid - Google Patents

Abgabevorrichtung für ein fluid Download PDF

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Publication number
EP3072597B1
EP3072597B1 EP16152682.7A EP16152682A EP3072597B1 EP 3072597 B1 EP3072597 B1 EP 3072597B1 EP 16152682 A EP16152682 A EP 16152682A EP 3072597 B1 EP3072597 B1 EP 3072597B1
Authority
EP
European Patent Office
Prior art keywords
fluid
chamber
valve
valve element
stroke
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.)
Active
Application number
EP16152682.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3072597A1 (de
Inventor
Andreas Mersmann
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.)
Aero Pump GmbH
Original Assignee
Aero Pump 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
Application filed by Aero Pump GmbH filed Critical Aero Pump GmbH
Publication of EP3072597A1 publication Critical patent/EP3072597A1/de
Application granted granted Critical
Publication of EP3072597B1 publication Critical patent/EP3072597B1/de
Active legal-status Critical Current
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
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
    • B05C11/1026—Valves
    • B05C11/1028—Lift valves
    • 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
    • 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
    • B05B11/0072—A valve member forming part of an outlet opening
    • 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
    • B05B11/1001—Piston pumps
    • B05B11/1016—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element

Definitions

  • the invention relates to a dispensing device for a fluid with a fluid channel and a chamber arrangement in which a valve element is movably arranged, which cooperates with a dispensing opening, the chamber arrangement having at least one sealing element which seals against the valve element via a first predetermined stroke of the valve element. and wherein the sealing element closes a liquid path from the chamber arrangement to the discharge opening via the first stroke.
  • Such a delivery device is, for example, from EP 0 686 433 A2 known.
  • an atomized fluid is to be released under pressure.
  • EP 0 688 608 A1 describes an atomizer for manually operated pumps.
  • the pump has a fluid channel and a chamber arrangement.
  • a valve element is arranged movably in the chamber arrangement and cooperates with a discharge opening.
  • the chamber arrangement has at least one sealing element which seals against the valve element via a stroke of the valve element.
  • WO 99/04906 A1 relates to a push button with a movable nozzle for dispensing fluids under pressure.
  • the associated pump has a fluid channel and a chamber arrangement.
  • a valve element is arranged movably in the chamber arrangement and cooperates with a discharge opening.
  • the chamber arrangement has at least one sealing lip which seals against the valve element via a stroke of the valve element.
  • Dispensing devices of this type are used, for example, to dispense fluids which contain medical or cosmetic active ingredient solutions.
  • the fluids should be placed in the nose, mouth or eyes of a user.
  • the fluids are transported through the fluid channel and the chamber arrangement to the discharge opening. That in the Chamber arrangement movably arranged valve element is used for the controlled delivery of a predetermined amount of fluid.
  • the valve element For the purpose of dispensing a predetermined amount of fluid, the valve element cooperates with the dispensing opening.
  • the valve element In a closed state, the valve element can, for example, seal the discharge opening against leakage of the fluid.
  • a stroke of the valve element brings it into an open state. In the open state, a quantity of fluid can now emerge from the discharge opening.
  • the invention is therefore based on the object of providing a dispensing device for a fluid which enables low-contamination and drop-shaped dispensing of the fluid.
  • this object is achieved in a dispensing device of the type mentioned at the outset in that the valve element has a second predetermined stroke of the valve element seals the discharge opening, the sealing element closes the liquid path from the chamber arrangement to the discharge opening via the second stroke, the valve element comprising a cylinder which seals the discharge opening by a positive fit.
  • valve element An actuation of the valve element now has no consequence that the fluid can exit the dispensing opening even with a slight stroke of the valve element. So that the fluid is not accelerated in the slight opening of the valve element. Over the entire first stroke, the sealing element ensures that the fluid cannot pass through the valve element. As a result, a certain amount of fluid accumulates in the fluid channel and chamber arrangement as a result of the first predetermined stroke. It can also be avoided that contamination continues beyond the valve element into the chamber arrangement or the fluid channel.
  • the sealing element closes a liquid path from the chamber arrangement to the dispensing opening via the first stroke.
  • the fluid channel opens into the chamber arrangement.
  • the path of the fluid through the fluid channel continues in the liquid path in the chamber arrangement.
  • This liquid path is interrupted by the sealing element over the first stroke of the valve element. The interruption of the liquid path leads to the fluid being retained in the chamber arrangement. A certain amount of fluid accumulates in the chamber assembly, but it cannot advance to the dispensing opening.
  • the valve element seals the discharge opening via a second predetermined stroke of the valve element, the sealing element closing the liquid path from the chamber arrangement to the discharge opening via the second stroke.
  • the valve element thus interacts with the dispensing opening in such a way that it seals it in a closed state.
  • the valve element is therefore at least partially received in the nozzle chamber. In the closed state of the valve element, the penetration of foreign substances into the nozzle chamber can be avoided. Contamination of the dispenser is avoided.
  • With a stroke of the valve element that is greater than the second Stroke the valve element clears the discharge opening. Fluid in the nozzle chamber can exit through the discharge opening. In this state, however, leakage of the fluid through the discharge opening should still be avoided.
  • the sealing element closes the liquid path from the chamber arrangement to the dispensing opening via the second stroke. No fluid can get into the nozzle chamber from the valve chamber. As soon as the stroke of the valve element has exceeded the first predetermined stroke, the sealing element releases the liquid path between the valve chamber and the nozzle chamber. Controlled and drop-shaped delivery of the fluid is now possible.
  • the sealing element clears the liquid path when the valve element is moved more than the first stroke. After a certain amount of fluid has accumulated in the chamber arrangement, the stroke of the valve element exceeds the first stroke. The sealing element no longer seals against the valve element. The fluid path for the fluid is released. The fluid can now over the liquid path is transported to the dispensing opening. The amount of fluid can be dispensed in the form of a drop.
  • the valve element has a space, in particular at least one groove, which forms part of the liquid path.
  • the fluid is transported along the valve element on the liquid path from the chamber arrangement to the discharge opening.
  • the space is only released when the stroke of the valve element has exceeded the first predetermined stroke. This ensures that the fluid does not have to pass a narrow liquid path. An undesired acceleration of the fluid when passing through the valve element can thus be avoided.
  • a controlled dispensing of the fluid is made possible. An uncontrolled splashing of the fluid out of the discharge opening is avoided.
  • the space that forms part of the liquid path can in particular be designed as at least one groove. A controlled transport of the fluid is possible. Penetration of larger foreign matter particles can be avoided. Contamination of the liquid path can thus be kept low.
  • the chamber arrangement has a valve chamber and a nozzle chamber, the sealing element sealing the nozzle chamber with respect to the valve chamber.
  • a spatial division of the chamber arrangement is achieved. Fluid accumulates in the valve chamber over the first predetermined stroke of the valve element. Due to the sealing element, the fluid cannot leave the valve chamber via the first stroke of the valve element. As soon as the stroke of the valve element exceeds the first stroke, the fluid path is released. The fluid can be transported from the valve chamber into the nozzle chamber. Due to the spatial separation of the valve chamber and nozzle chamber, it is another barrier against this Penetration of foreign substances created. The contamination of the dispenser can be kept low.
  • a valve seat is arranged between the valve chamber and the nozzle chamber, in which the valve element is movably arranged and which has the sealing element.
  • the valve seat serves for the spatial separation between the valve chamber and the nozzle chamber.
  • it serves to accommodate the valve element.
  • the valve seat now advantageously also has the sealing element; this can be arranged, for example, between the valve element and the valve seat. It is possible to design the valve seat and sealing element in one piece.
  • the fluid path is arranged between the sealing element or valve seat and valve element.
  • the liquid path opens into the nozzle chamber, the nozzle chamber having the discharge opening.
  • the fluid is transported along the liquid path.
  • the amount of fluid that has accumulated in the nozzle chamber first passes through the space of the valve element. After the valve element has been passed through in this way, the fluid continues to be transported via the liquid path into the nozzle chamber.
  • the nozzle chamber has a larger volume than the room. When the fluid was transported from the valve chamber into the room, the fluid was accelerated. The volume of the room is smaller than the volume of the valve chamber. When the fluid exits the space into the nozzle chamber, the fluid is braked by expansion into the volume of the nozzle chamber. The amount of fluid that has entered the nozzle chamber in this way can then exit the dispensing opening in a controlled manner.
  • the nozzle chamber has the discharge opening. A drop-shaped delivery of the fluid is made possible.
  • the sealing element is designed as at least one sealing lip and bears against the valve element via the first stroke.
  • a reliable seal between the sealing element and valve element and between the valve chamber and nozzle chamber is achieved.
  • With a stroke of the valve element that is greater than the first stroke the contact of the sealing element on the valve element ends.
  • the space occurs between the sealing element and the valve element.
  • a through opening between the valve chamber and the nozzle chamber is thus opened.
  • the amount of fluid accumulated in the valve chamber can pass through the sealing element and enter the room. The fluid is transported from the valve chamber into the nozzle chamber and finally to the discharge opening.
  • the first stroke forms a multiple of the second stroke.
  • a sufficient amount of fluid for droplet formation can collect in the valve chamber.
  • the discharge opening is completely cleared by the valve element.
  • the transport of the fluid through a narrow opening between the valve element and the discharge opening can be avoided. Acceleration of the fluid during dispensing is avoided. A drop-shaped delivery of the fluid is made possible.
  • Fig. 1 shows a dispenser 1 for a fluid.
  • the dispensing device 1 has a head base part 2, which is arranged on a snap-on 3.
  • a cone 4 extends from the head base part 2 in an axial direction through the snap-on 3 into a housing 5.
  • the cone 4 cooperates with a housing spring 6 in the housing 5.
  • the cone 4 has a fluid channel 7.
  • the fluid channel 7 extends in the axial direction toward the head base part 2.
  • the fluid channel 7 continues in the head base part 2 into a liner channel 8.
  • This liner channel 8 is arranged between the head base part 2 and a liner 9.
  • the liner channel 8 opens into a chamber arrangement 10.
  • This chamber arrangement 10 has a valve chamber 11.
  • a space 12 leaves a liquid path from the valve chamber 11 to a nozzle chamber 13.
  • the nozzle chamber 13 has a discharge opening 14.
  • the discharge opening 14 is designed in the form of a spherical cap 15.
  • a valve element 16 is arranged in the chamber arrangement 10. This has a first sealing lip 17 in the valve chamber 11. At one end of the valve element 16 opposite the first sealing lip 17, the valve element 16 is designed in the form of a cylinder 18.
  • the valve chamber 11 is divided into two areas by the first sealing lip 17.
  • the fluid path of the liner channel 8 continues into a first area of the valve chamber 11. This first area of the valve chamber 11 is spatially separated from a second area of the valve chamber 11 by means of the first sealing lip 17.
  • the second area of the valve chamber 11 has a head spring 19.
  • a valve seat 20 is arranged between the valve chamber 11 and the nozzle chamber 13.
  • This valve seat 20 has at least one crown 21.
  • the Crown 21 is arranged at the transition from liner channel 8 to valve chamber 11. Furthermore, the valve seat 20 has a sealing element 22.
  • FIGS 1 to 4 The embodiment of the dispensing device 1 just described is shown in FIGS 1 to 4 shown. Identical features are provided with identical reference symbols.
  • Fig. 1 represents a state of the dispensing device 1 in which the valve element 16 is arranged in a closed state.
  • Fig. 3 shows the same dispensing device 1, in which the valve element 16 is arranged in an open state.
  • a user moves the head base part 2 in the axial direction towards the snap-on 3.
  • the cone 4 is moved inside the housing 5 against the spring force of the housing spring 6.
  • the volume in a pump chamber of the housing 5 is reduced.
  • the pump chamber is formed by the space surrounding the housing spring 6.
  • the amount of fluid delivered is determined by a stroke of the cone 4 within the pump chamber. This enables the metering of a predetermined amount of fluid.
  • the resulting overpressure displaces the fluid from the pump chamber into the fluid channel 7.
  • the fluid is transported in an axial direction along the fluid channel 7.
  • the transport of the fluid continues in the liner 9 through the liner channel 8.
  • the fluid finally passes through the crown 21 and reaches the valve chamber 11.
  • valve chamber 11 There is a certain accumulation of fluid in the valve chamber 11. The more fluid that accumulates in the valve chamber 11, the greater the pressure of the fluid on the valve element 16.
  • the valve chamber 11 is there sealed by means of the first sealing lip 17 from the region of the valve chamber 11 in which the head spring 19 is arranged. Furthermore, the valve chamber 11 is sealed off from the nozzle chamber 13 by means of the sealing element 22. The fluid collecting in the valve chamber 11 thus displaces the valve element 16 against the spring force of the top spring 19.
  • the cylinder 18 seals the dispensing opening 14. This seal is achieved, for example, by a form fit. The possibility of contamination of the nozzle chamber 13 can be avoided.
  • the fluid entering the valve chamber 11 now displaces the valve element 16 against the spring force of the top spring 19. This results in a stroke of the valve element 16.
  • the cylinder 18 opens the discharge opening 14.
  • the sealing element 22 is still in a fluid-tight manner against the valve element 16.
  • the fluid in the valve chamber 11 cannot enter the space 12.
  • the space 12 is designed here as a groove in the valve element 16.
  • the stroke of the valve element 16 continues until the sealing element 22 reaches the space 12.
  • the valve element 16 has now covered a first stroke. During this first stroke, the sealing element 22 seals against the valve element 16.
  • the sealing element 22 As soon as the stroke of the valve element 16 exceeds the first predetermined stroke, there is an overlap of the sealing element 22 with the space 12. The sealing element 22 now releases a liquid path into the space 12. The fluid in the valve chamber 11 can enter the space 12. The fluid is transported through the space 12 into the nozzle chamber 13.
  • the first stroke is designed as a multiple of the second stroke. This will achieved that the cylinder 18 has completely released the discharge opening 14 after a stroke that is greater than the first stroke.
  • the volume of the valve chamber 11 is greater than the volume of the space 12.
  • the fluid is accelerated when it enters the space 12. This acceleration is undesirable because a controlled drop-shaped delivery of the fluid is desired.
  • the nozzle chamber 13 has a larger volume than the space 12.
  • the nozzle chamber 13 is also arranged in the transport direction of the fluid after the space 12. The fluid accelerated in the space 12 can thus expand in the nozzle chamber 13. This slows down the fluid.
  • the nozzle chamber 13 then has the discharge opening 14. The fluid can emerge from the discharge opening 14 along the cap 15 in the form of drops.
  • this enables the drop-shaped delivery of the fluid by the delivery device 1.
  • contamination of the dispensing device 1 with foreign substances can be largely avoided.
  • the contamination of the dispensing device 1 is achieved on the one hand by sealing the dispensing opening 14 by means of the cylinder 18 in a closed state of the valve element 16. Furthermore, the spatial separation of the nozzle chamber 13 and the valve chamber 11 by the valve seat 20 serves this purpose. With a stroke that is less than the first stroke, the sealing element 22 prevents penetration of foreign matter from the nozzle chamber 13 into the valve chamber 11. With a stroke that is greater than the first stroke, the sealing element 22 clears the liquid path. Fluid from the valve chamber 11 then enters the chamber 12 and then the nozzle chamber 13. Foreign matter possibly located in the nozzle chamber 13 is thus washed out. They cannot get into the valve chamber 11 against the fluid flow through the space 12. A Contamination of the dispensing device 1 can thus be largely avoided.

Landscapes

  • Closures For Containers (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Coating Apparatus (AREA)
EP16152682.7A 2015-03-26 2016-01-26 Abgabevorrichtung für ein fluid Active EP3072597B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015104646.6A DE102015104646B3 (de) 2015-03-26 2015-03-26 Abgabevorrichtung für ein Fluid

Publications (2)

Publication Number Publication Date
EP3072597A1 EP3072597A1 (de) 2016-09-28
EP3072597B1 true EP3072597B1 (de) 2020-04-15

Family

ID=55272238

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16152682.7A Active EP3072597B1 (de) 2015-03-26 2016-01-26 Abgabevorrichtung für ein fluid

Country Status (4)

Country Link
US (1) US10155243B2 (es)
EP (1) EP3072597B1 (es)
DE (1) DE102015104646B3 (es)
ES (1) ES2790773T3 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023180401A1 (de) * 2022-03-22 2023-09-28 Matanic Frank Vorrichtung zum portionierten austragen eines flüssigen mediums

Families Citing this family (8)

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Publication number Priority date Publication date Assignee Title
US9421199B2 (en) 2014-06-24 2016-08-23 Sydnexis, Inc. Ophthalmic composition
WO2016172712A2 (en) 2015-04-23 2016-10-27 Sydnexis, Inc. Ophthalmic composition
US11382909B2 (en) 2014-09-05 2022-07-12 Sydnexis, Inc. Ophthalmic composition
CN107847432A (zh) 2015-05-29 2018-03-27 西德奈克西斯公司 D2o稳定化的药物制剂
WO2019104191A1 (en) 2017-11-21 2019-05-31 Sydnexis, Inc. Ophthalmic composition and delivery device thereof
CH716306A2 (de) * 2019-06-11 2020-12-15 Elc Ceratec Gmbh Vorrichtung zur dosierten Abgabe einer Flüssigkeit aus einem Behälter und Sprühapplikator mit einer solchen Vorrichtung.
EP4164625A1 (en) 2020-06-10 2023-04-19 Ocular Science, Inc. Compositions and uses in method for post-operative ocular care
US20230120997A1 (en) 2021-10-18 2023-04-20 Ocular Science, Inc. Compositions and methods for myopia control and orthokeratology lenses treatment

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EP0688608A1 (en) * 1994-03-25 1995-12-27 GUALA S.p.A. An atomizer device for manually operated pumps
IT1270138B (it) * 1994-05-25 1997-04-29 Giovanni Albini Erogatore di fluidi in pressione nebulizzati , provvisto do otturatore mobile per azione del fluido in pressione
IT1272904B (it) * 1995-01-16 1997-07-01 Elettro Plastica Spa Pompetta per l'erogazione di liquidi nebulizzati
US5842616A (en) * 1996-04-24 1998-12-01 Ter S.R.L. Atomized liquid dispenser applicable to manually operated pumps
DE19627228A1 (de) * 1996-07-05 1998-01-08 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung für Medien
IT1294275B1 (it) * 1997-07-24 1999-03-24 Giovanni Albini Pulsante per l'erogazione di fluidi attraverso un ugello mobile sul pulsante stesso
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DE102008027146B4 (de) * 2008-06-02 2012-01-19 Ing. Erich Pfeiffer Gmbh Austragvorrichtung
CN102421684A (zh) * 2009-03-19 2012-04-18 卢姆森股份公司 用于流体物质的分配装置
DE102009037164B3 (de) * 2009-08-03 2010-12-09 Ing. Erich Pfeiffer Gmbh Austragvorrichtung für flüssige Medien

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Publication number Priority date Publication date Assignee Title
WO2023180401A1 (de) * 2022-03-22 2023-09-28 Matanic Frank Vorrichtung zum portionierten austragen eines flüssigen mediums

Also Published As

Publication number Publication date
EP3072597A1 (de) 2016-09-28
US10155243B2 (en) 2018-12-18
DE102015104646B3 (de) 2016-06-30
US20160279663A1 (en) 2016-09-29
ES2790773T3 (es) 2020-10-29

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