EP0739247B1 - Pompe aspirante et foulante pour reservoirs de fluide - Google Patents

Pompe aspirante et foulante pour reservoirs de fluide Download PDF

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Publication number
EP0739247B1
EP0739247B1 EP95906942A EP95906942A EP0739247B1 EP 0739247 B1 EP0739247 B1 EP 0739247B1 EP 95906942 A EP95906942 A EP 95906942A EP 95906942 A EP95906942 A EP 95906942A EP 0739247 B1 EP0739247 B1 EP 0739247B1
Authority
EP
European Patent Office
Prior art keywords
piston
suction
pressure
fluid container
pressure cylinder
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
EP95906942A
Other languages
German (de)
English (en)
Other versions
EP0739247A1 (fr
Inventor
Egon Schwab
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.)
Ursatec Verpackung GmbH
Original Assignee
Ursatec Verpackung 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 Ursatec Verpackung GmbH filed Critical Ursatec Verpackung GmbH
Publication of EP0739247A1 publication Critical patent/EP0739247A1/fr
Application granted granted Critical
Publication of EP0739247B1 publication Critical patent/EP0739247B1/fr
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
    • B05B11/0037—Containers
    • B05B11/0039—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0041—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure without contact of the fluid remaining in the container with the atmospheric air
    • 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
    • B05B11/0097—Means for filling or refilling the sprayer
    • 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
    • B05B11/1061—Pump priming means
    • 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
    • B05B11/1066—Pump inlet valves

Definitions

  • the invention relates to a suction pressure pump according to the preamble of Claim 1.
  • Such a suction pressure pump is, for example, from the German patent DE 27 09 796 C3 known.
  • the liquid to be sprayed is in a sealed Fluid container into which the suction pressure pump protrudes.
  • Runs in a printing cylinder a piston that delimits an upper pressure chamber.
  • This pressure chamber is connect to the fluid container through a valve.
  • Inside is the piston an axial pump channel to convey the fluid from the pressure chamber to one Outlet opening.
  • the piston is in an upper rest position by spring force held. If the user presses the piston, e.g. B by means of an attachable Actuator down, the pressure in the pressure chamber increases, that Valve opposite the fluid container closes and that in the pressure chamber Any liquid present escapes under pressure through the axial pump channel Outside. If the user lets go of the actuating element for the piston, this becomes pushed up by the spring force, creating a negative pressure in the pressure chamber arises and the valve to the fluid container opens, so that liquid again in the Pressure chamber can flow.
  • suction-pressure pumps are also to be kept as germ-free as possible Liquids, such as used in medical applications. Such will also be Pumps used for spraying liquids where contact with Atmospheric oxygen leads to a reduction in the life of the liquid.
  • Such applications are in German patent application DE 41 39 555 C2 Suction pressure pump with a fluid container described, the additional deformable and sealed from the atmosphere inner bag, so that the negative pressure caused by liquid flowing into the pressure chamber in the fluid container does not lead to an inflow of air into the fluid container.
  • the invention is therefore based on the object of providing a pressure suction pump, after the filling process, the removal of residual air in a simple manner is possible.
  • the residual air with the container closed, i.e. with the dosing pump attached to be able to suction, openings are in the pressure cylinder to the upper part of the Fluid container provided.
  • the piston is only in the circumferential sealing lip most of the printing cylinder is sealed. In a certain position of the Piston can thus air from the upper part of the fluid container between the piston and Flow the pressure cylinder past into the pressure chamber and the pump channel.
  • the pump channel is designed so wide that it is possible to pass a plunger through it, with which the ball valve between pressure chamber and fluid container is pressure independent can be locked.
  • the advantage of the invention is that from a sealed fluid container residual air can be extracted through the pump and it is easy to check whether all residual air is removed.
  • Another advantage is that it is easily possible to use the pressure chamber Fill liquid, d. H. to preload the pump. This property is special advantageous when using tixotropic liquids.
  • a plunger with the piston itself connected so that in the lowest position of the piston the valve between Fluid container and pressure chamber is closed. This allows the residual air to escape remove the fluid container by simply pushing the plunger down, thereby simultaneously closing the valve and a connection between the axial Pump channel and the fluid container is created and the pump channel with vacuum is applied.
  • the tappet can have a narrow front Area for actuating the valve and a wider area with star-shaped Have a cross section for mounting in the pump channel.
  • a lower stop for the piston can be provided so that the plunger the valve closes straight, but cannot be damaged by excessive pressure.
  • valve between the pressure chamber and the fluid container is advantageous as a ball valve educated.
  • An embodiment of the invention is particularly advantageous in which the sealing lip on lower end of the piston is formed and the area of the pressure cylinder in which the sealing lip does not have a sealing effect, also at the lower end of the pressure chamber is provided.
  • the suction pressure pump according to the invention can with a on the axial channel attached, a riser pipe leading to an outlet opening or outlet nozzle having manual actuating element with which the pressure force on the piston is exercised, provided.
  • This actuator can be a pressure relief valve, as it e.g. is described in the patent specification DE 27 09 796 C3.
  • the suction pressure pump 2 is sealed by means of the sealing ring 12 on the here only partially shown fluid container 1 placed.
  • a piston runs in the pressure cylinder 8 3 with an axial pump channel 7.
  • the piston 3 is supported by a spring 6 on a Stop held in its upper rest position.
  • the pressure chamber 4 Between the piston 3 and the Ball valve 5 is the pressure chamber 4, which is connected to the axial pump channel 7 connected is.
  • the piston 3 has a smaller outer diameter than that Inner diameter of the pressure cylinder 8, so that a gap 14 between Piston outer wall and cylinder inner wall remains, which, however, from the bottom circumferential sealing lip 9 of the piston is closed.
  • the pressure cylinder 8 has a section 10 with a larger one Inner diameter in which the sealing lip 9 does not have a sealing effect.
  • One on the Piston 3 exposed actuating element 20 has a riser pipe 21 with a Pressure relief valve 22 for dispensing the fluid through an outlet opening 23.
  • the upper rest position of the piston 3 seals the sealing lip 9 Pressure chamber 4 opposite the openings 13 to the fluid container 1.
  • the plunger 11 is firmly connected to the piston 3, the section 15 with a star Cross section leaves a connection between the pressure chamber 4 and pump channel 7. In the rest position of the pump, the plunger 11 has a distance from the ball valve 5, so that this opens at excess pressure in the pressure chamber 4 with respect to the fluid container 1 and closes at negative pressure.
  • the shortened actuation path of the piston 3 thus remains for actuating the pump along the section of the pressure cylinder 8 in which the sealing lip 9 is sealingly guided is.
  • Length and diameter of the pressure chamber 4 can be chosen to a to be able to deliver sufficient volume of liquid with each piston movement.
  • FIGS. 4 to 6 show a second exemplary embodiment of an inventive one Suction-pressure pump shown schematically.
  • Figure 4 shows the longitudinal section Printing cylinder 8, in which the piston 3 is sealingly guided.
  • the piston 3 with constant diameter has axially outside 9 above the sealing lip Recesses 18 on.
  • FIG 6 can be seen in the lower region of the pressure cylinder 8 on the inside axial Recesses 19 formed.

Landscapes

  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Jet Pumps And Other Pumps (AREA)

Claims (10)

  1. Pompe aspirante et refoulante pour un fluide se trouvant dans un réservoir de fluide (1) rendu étanche, comportant un cylindre de pression (8) pénétrant dans le réservoir de fluide (1), un piston (3) pourvu d'un canal de pompe (7) axial, et qui est guidé de manière à assurer l'étanchéité, dans le cylindre de pression (8), une chambre de pression (4), formée dans le cylindre de pression (8), qui est limitée par le piston (3) et par une soupape (5), agissant par rapport au réservoir de fluide (1) qui se ferme en cas de surpression et s'ouvre en cas de dépression et qui communique avec le canal de pompe (7 axial, caractérisée en ce que le piston (3) dans le cylindre de pression (8) n'est rendu étanche que par une lèvre d'étanchéité (9) périphérique, le cylindre de pression (8) présente une zone (10) dans laquelle la lèvre d'étanchéité (9) n'a aucune action d'étanchéité, le canal de pompe (7) axial présente un diamètre intérieur suffisamment grand pour pouvoir être traversé par un poussoir avec lequel la soupape (5) peut être fermée vers le réservoir de fluide (1), de manière indépendante de la pression, et le cylindre de pression (8) présente des ouvertures vers la partie supérieure du réservoir de fluide (1), pour l'aspiration de l'air restant se trouvant dans le réservoir de fluide (1).
  2. Pompe aspirante et refoulante selon la revendication 1, caractérisée en ce qu'avec le piston (3) est relié un poussoir (11), qui dans la position la plus basse du piston (3) ferme la soupape (1) vers le réservoir de fluide (1), de manière indépendante de la pression.
  3. Pompe aspirante et refoulante selon la revendication 2, caractérisée en ce que le poussoir (11) présente une zone inférieure étroite pour l'actionnement de la soupape (5) et une zone supérieure (15) plus large avec une section transversale en forme d'étoile en vue de la fixation dans le canal de pompe (7).
  4. Pompe aspirante et refoulante selon la revendication 2 ou 3, caractérisée en ce qu'il est prévu une butée (17) inférieure pour le piston (3).
  5. Pompe aspirante et refoulante selon l'une des revendications 1 à 4, caractérisée en ce que la soupape (5) est conformée en soupape à bille entre la chambre de pression (4) et le réservoir de fluide (1).
  6. Pompe aspirante et refoulante selon l'une des revendications 1 à 5, caractérisée en ce que la lèvre d'étanchéité (9) se trouve à l'extrémité inférieure du piston (3) et la zone (10) du cylindre de pression (8), dans laquelle la lèvre d'étanchéité (9) n'agit pas de manière étanche, est prévue également à l'extrémité inférieure de la chambre de pression (4).
  7. Pompe aspirante et refoulante selon l'une des revendications 1 à 6, caractérisée en ce que le piston (3) possède un plus petit diamètre extérieur que le diamètre intérieur du cylindre de pression (8) et la zone (10) du cylindre de pression (8), dans laquelle la lèvre d'étanchéité (9) du piston (3) n'agit pas de manière étanche, possède un plus grand diamètre intérieur que le diamètre extérieur de la lèvre d'étanchéité (9).
  8. Pompe aspirante et refoulante selon l'une des revendications 1 à 7, caractérisée en ce que le piston (3), y compris la lèvre d'étanchéité (9), présente un diamètre extérieur constant et le cylindre de pression (8) présente un diamètre intérieur constant, des évidements (18) axiaux extérieurs étant prévus dans le piston (3), au-dessus de la lèvre d'étanchéité (9), et des évidements axiaux (19) intérieurs étant formés dans la zone (10) du cylindre de pression (8), dans laquelle la lèvre d'étanchéité (9) n'agit pas de manière étanche.
  9. Pompe aspirante et refoulante selon l'une des revendications 1 à 8, caractérisée en ce qu'un élément d'actionnement (20), à placer sur le piston (3), est prévu avec un tube ascendant (21), débouchant dans une sortie de fluide (23), lequel tube ascendant (21) est relié au canal de pompe (7) axial, formé dans le piston (3).
  10. Pompe aspirante et refoulante selon la revendication 9, caractérisée en ce qu'une soupape de surpression (22) est prévue dans le tube ascendant (21) de l'élément d'actionnement (20).
EP95906942A 1994-01-14 1995-01-13 Pompe aspirante et foulante pour reservoirs de fluide Expired - Lifetime EP0739247B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4400944 1994-01-14
DE4400944A DE4400944A1 (de) 1994-01-14 1994-01-14 Saug-Druckpumpe für Fluidbehälter
PCT/EP1995/000132 WO1995019230A1 (fr) 1994-01-14 1995-01-13 Pompe aspirante et foulante pour reservoirs de fluide

Publications (2)

Publication Number Publication Date
EP0739247A1 EP0739247A1 (fr) 1996-10-30
EP0739247B1 true EP0739247B1 (fr) 1998-04-29

Family

ID=6507932

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95906942A Expired - Lifetime EP0739247B1 (fr) 1994-01-14 1995-01-13 Pompe aspirante et foulante pour reservoirs de fluide

Country Status (5)

Country Link
US (1) US5692649A (fr)
EP (1) EP0739247B1 (fr)
AT (1) ATE165534T1 (fr)
DE (2) DE4400944A1 (fr)
WO (1) WO1995019230A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002030577A1 (fr) * 2000-10-10 2002-04-18 Steven Padar Dispositif de distribution de fluides
WO2002076626A1 (fr) 2001-02-22 2002-10-03 Steven Padar Dispositif de distribution pour fluides

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19627228A1 (de) * 1996-07-05 1998-01-08 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung für Medien
US5950880A (en) * 1997-04-14 1999-09-14 Valois S.A. Set of components for assembly as a dispensing package of the non-vented type having a take-up piston
DE29811242U1 (de) * 1998-06-24 1999-11-04 Fritz Albert Riegler GmbH & Co. KG, 64367 Mühltal Applikations-Vorrichtung für keimfreie Fluide
FR2796050B1 (fr) * 1999-07-09 2002-01-25 Sofab Distributeur de produits liquides a corps en deux parties
FR2809714B1 (fr) * 2000-05-31 2002-12-06 Valois Sa Distributeur a organe de fixation a etancheite peripherique
DE10131174A1 (de) * 2001-06-29 2003-01-16 Boehringer Ingelheim Pharma Vernebler zur Applikation von Flüssigkeiten auf die Augenoberfläche oder das Augenbindegewebe
DE10231751B4 (de) * 2002-07-13 2004-07-29 Aero Pump GmbH, Zerstäuberpumpen Saug-Druck-Pumpe zum Ausspritzen eines Produkts aus einem Behältnis
DE10231749B4 (de) * 2002-07-13 2004-07-29 Aero Pump GmbH, Zerstäuberpumpen Saug-Druck-Pumpe zum Ausgeben einer Flüssigkeit aus einem Behältnis
US20080220107A1 (en) * 2002-09-03 2008-09-11 Pharmacure Health Care Ab Nasal spray apparatus
US20060024185A1 (en) * 2002-09-03 2006-02-02 Aakerman Aake Nasal sprays
FR2862106B1 (fr) * 2003-11-07 2007-08-24 Valois Sas Pompe de distribution de produit fluide.
DE102005033771A1 (de) * 2005-07-15 2007-01-25 Saint-Gobain Calmar Gmbh Fluidaustragkopf
FR2892158B1 (fr) * 2005-10-17 2011-10-21 Valois Sas Pompe de distribution de produit fluide
US7967509B2 (en) 2007-06-15 2011-06-28 S.C. Johnson & Son, Inc. Pouch with a valve
US8192182B2 (en) * 2008-01-09 2012-06-05 S.C. Johnson Home Storage, Inc. Manual evacuation system
DE102008002765B4 (de) * 2008-02-01 2016-06-23 Deb Ip Limited Spendereinheit sowie Verfahren zum Befüllen und Evakuieren einer Spendereinheit und Fülleinsatz für eine Spendereinheit für pastöse, schaumförmige oder flüssige Medien
EP2387473B1 (fr) * 2009-01-16 2013-11-06 Colgate-Palmolive Company Récipient distributeur avec pièce de raccordement recevant une pompe
IT1393854B1 (it) * 2009-04-01 2012-05-11 Emsar Spa Dispenser.
DE102010045059A1 (de) * 2010-09-10 2012-03-15 F. Holzer Gmbh Dosiervorrichtung
ES2492679T3 (es) * 2011-02-02 2014-09-10 Sulzer Mixpac Ag Dispositivo de descarga para material fluido
SG10201606161UA (en) * 2011-07-05 2016-09-29 Novozymes Biopharma Dk As Albumin Formulation and Use
FR2978431B1 (fr) * 2011-07-25 2013-08-23 Valois Sas Distributeur de produit fluide
KR102140284B1 (ko) * 2018-09-06 2020-07-31 임종수 액상 화장품의 미스트 분사기구

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2709796C3 (de) * 1977-03-07 1981-12-03 Aero-Pump Gmbh, Zerstaeuberpumpen, 6203 Hochheim Vorrichtung zum Versprühen einer Flüssigkeit aus einem geschlossenen Behältnis
DE3225692A1 (de) * 1982-07-09 1984-01-12 Pfeiffer Zerstäuber Vertriebsgesellschaft mbH & Co KG, 7760 Radolfzell Dosierpumpe sowie verfahren und vorrichtung zum befuellen eines mit einer dosierpumpe versehenen behaelters
DE3517558A1 (de) * 1985-05-15 1986-11-20 Ing. Erich Pfeiffer GmbH & Co KG, 7760 Radolfzell Handbetaetigte ausgabeeinrichtung fuer medien
FR2620052B1 (fr) * 1987-09-09 1990-04-27 Valois Vaporisateur du type pompe manuelle a precompression pour utilisation avec un gaz propulseur
FR2666852B1 (fr) * 1990-09-17 1992-12-18 Step Soc Tech Pulverisation Pompe manuelle a precompression.
US5217148A (en) * 1991-02-11 1993-06-08 Spruhventile Gmbh Pharmaceutical pump dispenser
DE4139555A1 (de) * 1991-09-18 1993-03-25 Gaplast Gmbh Behaelter
IT1251684B (it) * 1991-10-11 1995-05-19 Carlo Mancini Pompetta ad azionamento manuale per dispensare sostanze liquide o cremose a pressione costante e prestabilita.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002030577A1 (fr) * 2000-10-10 2002-04-18 Steven Padar Dispositif de distribution de fluides
DE10049898A1 (de) * 2000-10-10 2002-04-25 Steven Padar Abgaevorrichtung für Fluide
DE10049898C2 (de) * 2000-10-10 2002-10-02 Steven Padar Abgabevorrichtung für Fluide
US6666355B2 (en) 2000-10-10 2003-12-23 Steven Padar Fluid dispensing device
WO2002076626A1 (fr) 2001-02-22 2002-10-03 Steven Padar Dispositif de distribution pour fluides

Also Published As

Publication number Publication date
ATE165534T1 (de) 1998-05-15
DE59502051D1 (de) 1998-06-04
DE4400944A1 (de) 1995-07-20
EP0739247A1 (fr) 1996-10-30
US5692649A (en) 1997-12-02
WO1995019230A1 (fr) 1995-07-20

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