EP0014754A1 - Pompe pulvérisatrice - Google Patents

Pompe pulvérisatrice Download PDF

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Publication number
EP0014754A1
EP0014754A1 EP79104906A EP79104906A EP0014754A1 EP 0014754 A1 EP0014754 A1 EP 0014754A1 EP 79104906 A EP79104906 A EP 79104906A EP 79104906 A EP79104906 A EP 79104906A EP 0014754 A1 EP0014754 A1 EP 0014754A1
Authority
EP
European Patent Office
Prior art keywords
piston
pump
servo
cylinder
servo piston
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.)
Granted
Application number
EP79104906A
Other languages
German (de)
English (en)
Other versions
EP0014754B1 (fr
Inventor
Hans Ing.-Grad Grothoff
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.)
Silgan Dispensing Systems Hemer GmbH
Original Assignee
Calmar Albert 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 Calmar Albert GmbH filed Critical Calmar Albert GmbH
Priority to AT79104906T priority Critical patent/ATE5568T1/de
Publication of EP0014754A1 publication Critical patent/EP0014754A1/fr
Application granted granted Critical
Publication of EP0014754B1 publication Critical patent/EP0014754B1/fr
Expired 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
    • B05B11/01—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
    • B05B11/1018—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element and the controlling element cooperating with means for opening or closing the inlet valve

Definitions

  • the invention relates to an atomizer pump for batch-wise spraying and application of liquid preparations for cosmetic and technical purposes, consisting of a cap which is matched to the respective liquid container and in which a graduated pump cylinder, which is provided with a riser pipe towards the liquid container, is arranged within the larger diameter Pump cylinder section an axially movable pump piston is used, which seals over the lips to the cylinder wall, the piston shaft of which passes through a bore in the cap and is provided with an atomizer head which is plugged onto the shaft end and which is connected to the space below the pump piston via an axial bore of the piston shaft.
  • the proposal with the flexible, thin-walled sealing lip is not practical in that it has been found that such an extremely thin sealing lip cannot be reliably produced in series and that such a sealing lip does not have sufficient stability within the scope of the internal pressures occurring in these pumps, between Cylinder wall and servo piston jammed and the function of the pump negatively affected.
  • the ball version can be manufactured and is capable of working, but it has severe economic disadvantages, since the servo piston consists of at least three components which have to be preassembled in a separate process before the pump is actually assembled, which in addition to additional quality impairments, particularly increases the production costs Increase the pump and its competitiveness is reduced.
  • atomizing piston pump of a similar design is known from DT-OS 27 13 447.
  • the servo piston is made in one piece, but does not itself have any sealing lips, but the seal is to be produced by an annular constriction in the area of the small cylinder. This arrangement is disadvantageous for a number of reasons.
  • the invention has set itself the task of creating an atomizer pump which has a minimum of components with practical tolerance areas in a mass production is economically producible and their functional reliability, in the event of swelling or other deformation due to released internal stresses of the components in the area of the servo piston, remains unaffected.
  • the invention solves this problem in that in the upper, unactuated position of the pump piston a communicating connection of the space in the larger pump cylinder section between pump and servo piston with the space below the servo piston, while guiding the servo piston in the small pump cylinder section by at least one as Part of the servo piston formed and at least partially against the wall of the small cylinder section, lip-shaped, elastic guide member with a one-piece design of the servo piston is given.
  • Another solution according to the invention is to arrange a sealing lip that is free from the wall of the small cylinder section above the guide member that remains in cylinder engagement when the pump is in the cylinder engagement and is provided with openings or recesses.
  • the higher swelling sensitivity of the sealing lip given this arrangement since in this case it does not have a guiding and centering function, can be reduced to a level sufficient for practical use that the wall thickness of the sealing lip is reduced to such an extent that how the pressure conditions in the pump allow this.
  • the arrangement has the economic advantage that only changes to the servo piston and not also to the cylinder are necessary in existing production facilities and tools.
  • the pump stroke required for tight sealing of the servo piston in the small cylinder section is at least 0.2 mm.
  • Fig. 1 shows a nebulizer pump, consisting of a cap 2 provided for screwing onto a liquid container (not shown) with threads 1, in which a cylinder 3 is fastened via its flange 4 by holding claws 5 and the spray head 6 with the outlet nozzle 7 and that in the cylinder attached riser pipe 8.
  • the seal 9, which is in contact with the cylinder and provided with openings, is used to seal the pump from the liquid container.
  • a pump piston 10 is arranged within the upper, larger-diameter part 3 'of the cylinder, the piston shaft 11 of which passes through a bore 12 in the cap 2, seals in the rest position by means of the conical extension 13, and the spray head 6 is placed over its shaft end 14 .
  • the pressure equalization between the interior of the container and the atmosphere takes place when the pump is actuated via the bore 12 and the channels 15, 15 '.
  • the sealing lip 16 of the pump piston rests with a prestress on the cylinder wall and shuts off the cylinder chamber 17 towards the top.
  • the piston shaft has an axial bore 18 which narrows at the lower end to a smaller, stepped bore 19 and is closed by the conical tip .20 of the servo piston 21 by the force of the prestressed spring 22 acting thereon.
  • the servo piston has a circumferential elastic sealing lip 23 which is arranged within the smaller-diameter cylinder section 3 ′′. At the transition from the larger to the smaller one Cylinder section are in the wall of the extension 24 of the smaller cylinder channel-like recesses 25.
  • the length of the individual components of the pump is adjusted so that the sealing lip of the servo piston is arranged in the rest position of the pump in the area of these recesses, whereby a connection is made via these of the cylinder chamber 17 with the cylinder chamber 26 below the servo piston and in continuation via the cylinder bore 27 and the bore 28 of the riser pipe 8 with the liquid in the liquid container, not shown, is produced.
  • the pump piston displaces liquid via the channel-like recesses 25 from the cylinder space 17 back into the liquid container until the sealing lip 23 of the servo piston has run out of the region of the recesses and has a fully sealing effect on the cylinder wall. Since the pump piston displaces more volume than space in the small cylinder is released with the same axial movement of the servo piston, the servo piston reacts with an additional evasive movement against the spring force when the pump piston continues to advance, as a result of which the sealing cone 20 of the servo piston is raised from the bore 19 of the pump piston 10 , the liquid is conveyed through the axial bore 18 into the spray head 6 and, after being swirled through the tangential channels 29, is sprayed through the nozzle bore 30.
  • FIGS. 2 to 4 which are shown in the form of sections from FIG. 1, correspond in their functional behavior to the preceding description and represent further possible embodiments according to the inventive concept.
  • Fig. 2 differs from Fig. 1 only in that the channel-like recesses 31 fully penetrate the extension 24 of the smaller cylinder section, which means that the liquid has a higher flow velocity and thus a faster filling of the cylinder space 17 by increasing the passage area.
  • the smaller cylinder section itself has no openings or recesses.
  • the connection of the two cylinder spaces is ensured by a lip-shaped guide member 34 on the servo piston provided with openings 33, which also remains in the rest position of the pump in the region of the wall of the small cylinder, while the seal arranged above the guide member.
  • lip 35 in this position has no contact with the wall of the small cylinder, but is free within the cylinder space 17 and allows an unobstructed communication of the two cylinder spaces over an annular surface 36 until the sealing lip 35 comes into contact with the inner surface of the small one when the servo piston moves downward Cylinder kicks.
EP79104906A 1979-02-17 1979-12-04 Pompe pulvérisatrice Expired EP0014754B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79104906T ATE5568T1 (de) 1979-02-17 1979-12-04 Zerstaeuberpumpe.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2906234A DE2906234C2 (de) 1979-02-17 1979-02-17 Zerstäuberkolbenpumpe
DE2906234 1979-02-17

Publications (2)

Publication Number Publication Date
EP0014754A1 true EP0014754A1 (fr) 1980-09-03
EP0014754B1 EP0014754B1 (fr) 1983-12-14

Family

ID=6063253

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79104906A Expired EP0014754B1 (fr) 1979-02-17 1979-12-04 Pompe pulvérisatrice

Country Status (4)

Country Link
EP (1) EP0014754B1 (fr)
AT (1) ATE5568T1 (fr)
DE (1) DE2906234C2 (fr)
ES (1) ES488637A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0289855A2 (fr) * 1987-05-08 1988-11-09 Ing. Erich Pfeiffer GmbH & Co. KG Distributeur de fluides
EP0430431A2 (fr) * 1989-11-27 1991-06-05 Specialty Packaging Licensing Company, Inc. Distributeur-pulvérisateur de fluides
WO1995008400A1 (fr) * 1993-09-22 1995-03-30 The Procter & Gamble Company Appareil de pulverisation de produits a haute viscosite
EP1059095A1 (fr) * 1999-05-11 2000-12-13 Krewel Meuselbach GmbH Pompe de dosage

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1290043B (de) * 1966-03-12 1969-02-27 Albert Rudolf Zerstaeuberpumpe, insbesondere fuer Parfuem oder andere kosmetische Fluessigkeiten
FR2305241A2 (fr) * 1975-03-28 1976-10-22 Step Soc Tech Pulverisation Perfectionnements apportes aux vaporisateurs
DE2713447A1 (de) * 1976-04-30 1977-12-22 Emson Res Zerstaeubungspumpenauslass
DE2818724A1 (de) * 1978-04-28 1979-11-08 Seltmann Hans Juergen Ausgabepumpe, insbesondere zum zerstaeuben von fluessigkeiten
GB2023225A (en) * 1978-06-19 1979-12-28 Aerosol Inventions Dev Pump for hand-held containers
FR2433982A1 (fr) * 1978-08-23 1980-03-21 Mitani Valve Co Ltd Atomiseur a pompe

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5738307B2 (fr) * 1973-11-07 1982-08-14
DE2825428A1 (de) * 1978-06-09 1979-12-13 Seltmann Hans Juergen Ausgabepumpe, insbesondere zum zerstaeuben von fluessigkeiten

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1290043B (de) * 1966-03-12 1969-02-27 Albert Rudolf Zerstaeuberpumpe, insbesondere fuer Parfuem oder andere kosmetische Fluessigkeiten
FR2305241A2 (fr) * 1975-03-28 1976-10-22 Step Soc Tech Pulverisation Perfectionnements apportes aux vaporisateurs
DE2713447A1 (de) * 1976-04-30 1977-12-22 Emson Res Zerstaeubungspumpenauslass
DE2818724A1 (de) * 1978-04-28 1979-11-08 Seltmann Hans Juergen Ausgabepumpe, insbesondere zum zerstaeuben von fluessigkeiten
GB2023225A (en) * 1978-06-19 1979-12-28 Aerosol Inventions Dev Pump for hand-held containers
FR2429338A1 (fr) * 1978-06-19 1980-01-18 Aerosol Inventions Developmant Pompe a amorcage rapide pour vaporisateur
FR2433982A1 (fr) * 1978-08-23 1980-03-21 Mitani Valve Co Ltd Atomiseur a pompe

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0289855A2 (fr) * 1987-05-08 1988-11-09 Ing. Erich Pfeiffer GmbH & Co. KG Distributeur de fluides
EP0289855A3 (en) * 1987-05-08 1989-12-06 Ing. Erich Pfeiffer Gmbh & Co. Kg Fluid dispenser
US5011046A (en) * 1987-05-08 1991-04-30 Ing. Erich Pfeiffer Gmbh & Co. Kg Pump dispenser having valved presuction chamber and outlet
EP0430431A2 (fr) * 1989-11-27 1991-06-05 Specialty Packaging Licensing Company, Inc. Distributeur-pulvérisateur de fluides
EP0430431A3 (en) * 1989-11-27 1992-01-08 Rjs Industries, Inc. Atomizing fluid dispenser
WO1995008400A1 (fr) * 1993-09-22 1995-03-30 The Procter & Gamble Company Appareil de pulverisation de produits a haute viscosite
EP1059095A1 (fr) * 1999-05-11 2000-12-13 Krewel Meuselbach GmbH Pompe de dosage

Also Published As

Publication number Publication date
EP0014754B1 (fr) 1983-12-14
ATE5568T1 (de) 1983-12-15
DE2906234C2 (de) 1986-01-02
DE2906234A1 (de) 1980-08-21
ES488637A1 (es) 1980-09-16

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