WO2005059361A1 - Cartridge pump - Google Patents

Cartridge pump Download PDF

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Publication number
WO2005059361A1
WO2005059361A1 PCT/CH2004/000742 CH2004000742W WO2005059361A1 WO 2005059361 A1 WO2005059361 A1 WO 2005059361A1 CH 2004000742 W CH2004000742 W CH 2004000742W WO 2005059361 A1 WO2005059361 A1 WO 2005059361A1
Authority
WO
WIPO (PCT)
Prior art keywords
cartridge
pump
housing
cylinder
elements
Prior art date
Application number
PCT/CH2004/000742
Other languages
French (fr)
Inventor
Ivan Rossier
Original Assignee
Gotec S.A.
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 Gotec S.A. filed Critical Gotec S.A.
Priority to EP04820378A priority Critical patent/EP1761703B1/en
Priority to DE602004018040T priority patent/DE602004018040D1/en
Publication of WO2005059361A1 publication Critical patent/WO2005059361A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
    • F04B17/046—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids the fluid flowing through the moving part of the motor

Definitions

  • the present invention relates to a pump with cartridge and more particularly to a pump comprising a plastic cartridge which constitutes the cylinder ei. end caps.
  • the electromagnetic pumps are intended for multiple uses, for the fields of chemistry, medicine, food or household appliances for example. These pumps have elements, the piston for example, which oscillate at high frequency under the action of a coil. The whole is; subject to many parameters and requirements including, among other things, a perfect seal and minimal friction. It is also necessary that, according to the different fields of use, the elements perfectly resist liquids of all kinds, including very acidic liquids for example.
  • the known forms of execution have several drawbacks.
  • the various elements constituting the cylinder and the nozzles are connected together mechanically and fixed on either side to the pump housing by mechanical elements, which constitutes an important complication.
  • Elements made of conventional ferrous or non-ferrous metallic materials require the use of numerous seals, which again constitutes a complication.
  • ferrous or non-ferrous materials have the disadvantage of not being resistant or compatible with certain types of liquid, which can impair the proper functioning of the pump and which can also pollute certain liquids used.
  • the aims of the present invention therefore consist in remedying the drawbacks of the known embodiments.
  • the objects are achieved according to the principles of the invention defined by claim 1.
  • the pump with cartridge comprises a cartridge made of synthetic material which is constituted by a cylinder element which comprises a nozzle and by a plug element which comprises a nozzle.
  • the two cylinder and plug elements are mounted on either side in the housing of an electromagmetic pump and are then assembled together by flushing, by fusion or by bonding, for example.
  • the benefits are many.
  • the assembly by driving, fusion or bonding of the two cylinder and plug elements completely eliminates the mechanical assemblies which gives a very important simplification and a perfect seal without joints.
  • the two elements constituting the cartridge can be made with synthetic materials of different natures which makes it possible to adapt the synthetic materials to the different types of liquids in order to guarantee perfect compatibility.
  • FIG. 1 is an overall sectional view of a pump with cartridge.
  • Figure 2 is a sectional view of the cylinder and plug elements in the assembled position.
  • Figure 3 is a sectional view of the cylinder element.
  • an electromagnetic pump comprises a housing 1 which comprises the various electronic and mechanical elements necessary, such as the coil 4, for the creation of an oscillating movement.
  • the housing 1 comprises a housing 10 in which a cartridge constituted by a cylinder element 2 and a plug element 3 are mounted and assembled together by driving out, by fusion or by gluing for example.
  • the ends of the cylinder and plug elements have the shape of a nozzle on which liquid supply and outlet pipes are intended to be mounted. These tips have cylindrical openings for the passage of liquid.
  • the piston 5 which has a liquid passage bore, the springs 6, 8 and 11, the valves 7 and 9, are mounted in the cylinder, the oscillation of the piston 5 being activated by the coil 4 and the various electronic and electrical elements.
  • the piston and all the oscillating elements in the cylinder are only in contact with the cylinder element 2 and the plug element 3.
  • the various oscillating elements are mounted in the cylinder element 2 of the cartridge, and the plug element 3 is fixedly mounted by driving, melting or gluing in the cylinder element 2.
  • the cartridge thus formed is mounted in the housing 10 of the pump housing and is held in a fixed manner by a fixing device 12 which can be constituted by a circlip for example or any other removable fixing device.
  • Figure 2 shows the cylinder 2 and plug 3 elements in the assembled position.
  • the cylinder element 2 has a shoulder 14 which abuts against the upper part of the pump housing, and has a groove 13 which cooperates during mounting of the cartridge with a fixing element which can be a circlip for example.
  • Figure 3 is a detail view of the cylinder element 2 which includes the groove 13
  • Figure 4 is a detail view of the plug element 3.
  • a device for fixing the cartridge to the housing by circlips is mentioned above by way of 'example.
  • Other forms of removable fixing devices can be used, for example screwing, the essential aim being to be able to replace the cartridge quickly and at low cost if necessary.
  • the rapid replacement of the cartridge is particularly important when the pump is used in environments requiring absolute sterility or when the same pump is used for different products.

Abstract

The invention concerns a cartridge pump comprising a case (1) including electronic or electrical elements causing an oscillation so as to actuate a piston (5). The piston (5) and the mechanical elements are mounted in a cartridge consisting of a cylinder element (2) and a plug element (3) which are assembled together after the mechanical elements have been mounted. The cartridge which is made of a synthetic material compatible with the pumped liquid is removably mounted in the housing (10) of the case (1)

Description

POMPE AVEC CARTOUCHEPUMP WITH CARTRIDGE
La présente invention se rapporte à une pompe avec cartouche et plus particulièrement à une pompe comportant une cartouche en matière plastique qui constitue le cylindre ei. les embouts. Les pompes électromagnétiques sont destinées à de multiples utilisations, pour les domaines de la chimie, de la médecine, de l'alimentaire ou de l'électroménager par exemple. Ces pompes comportent des éléments, le piston par exemple, qui oscillent à haute fréquence sous l'action d'une bobine. L'ensemble est; soumis à de nombreux paramètres et exigences dont, entre autres, une parfaite étanchéité et une friction minimale. Il est également nécessaire que, selon les différents domaines d'utilisation, les éléments résistent parfaitement à des liquides de toutes sortes dont des liquides très acides par exemple. Les formes d'exécutions connues présentent plusieurs inconvénients . Avec les formes d'exécutions connues les différents éléments constituant le cylindre et les embouts sont reliés entre eux d'une manière mécanique et fixés de part et d'autre au boîtier de la pompe par des éléments mécaniques ce qui constitue une importante complication. Les éléments réalisés en matériaux métalliques ferreux ou non ferreux conventionnels nécessitent l'utilisation de nombreux joints d' étanchéité ce qui constitue encore une complication. De plus, les matériaux ferreux ou non ferreux présentent 1 ' inconvénient de ne pas être résistants ou compatibles avec certains types de liquides ce qui peut altérer le bon fonctionnement de la pompe et ce qui peut aussi polluer certains liquides utilisés. Les buts de la présente invention consistent donc à remédier aux inconvénients des formes d'exécutions connues. Les buts sont atteints selon les principes de l'invention définis par la revendication 1. La pompe avec cartouche, selon les principes de l'invention, comporte une cartouche en matière synthétique qui est constituée par un élément cylindre qui comporte un embout et par un élément bouchon qui comporte un embout. Les deux éléments cylindre et bouchon sont montés de part et d'autre dans le boîtier d'une pompe électromagmétique et sont ensuite assemblés entre eux par chassage, par fusion ou par collage par exemple. Les avantages sont nombreux. L'assemblage par chassage, fusion ou collage des deux éléments cylindre et bouchon supprime complètement les assemblages mécaniques ce qui procure une simplification très importante et une parfaite étanchéité sans joints. Les deux éléments constituant la cartouche peuvent être réalisés avec des matériaux synthétiques de différentes natures ce qui permet d'adapter les matériaux synthétiques aux différents types de liquides afin de garantir une parfaite compatibilité .The present invention relates to a pump with cartridge and more particularly to a pump comprising a plastic cartridge which constitutes the cylinder ei. end caps. The electromagnetic pumps are intended for multiple uses, for the fields of chemistry, medicine, food or household appliances for example. These pumps have elements, the piston for example, which oscillate at high frequency under the action of a coil. The whole is; subject to many parameters and requirements including, among other things, a perfect seal and minimal friction. It is also necessary that, according to the different fields of use, the elements perfectly resist liquids of all kinds, including very acidic liquids for example. The known forms of execution have several drawbacks. With the known embodiments, the various elements constituting the cylinder and the nozzles are connected together mechanically and fixed on either side to the pump housing by mechanical elements, which constitutes an important complication. Elements made of conventional ferrous or non-ferrous metallic materials require the use of numerous seals, which again constitutes a complication. In addition, ferrous or non-ferrous materials have the disadvantage of not being resistant or compatible with certain types of liquid, which can impair the proper functioning of the pump and which can also pollute certain liquids used. The aims of the present invention therefore consist in remedying the drawbacks of the known embodiments. The objects are achieved according to the principles of the invention defined by claim 1. The pump with cartridge, according to the principles of the invention, comprises a cartridge made of synthetic material which is constituted by a cylinder element which comprises a nozzle and by a plug element which comprises a nozzle. The two cylinder and plug elements are mounted on either side in the housing of an electromagmetic pump and are then assembled together by flushing, by fusion or by bonding, for example. The benefits are many. The assembly by driving, fusion or bonding of the two cylinder and plug elements completely eliminates the mechanical assemblies which gives a very important simplification and a perfect seal without joints. The two elements constituting the cartridge can be made with synthetic materials of different natures which makes it possible to adapt the synthetic materials to the different types of liquids in order to guarantee perfect compatibility.
La compatibilité, tout en garantissant une friction optimale des éléments qui oscillent dans le cylindre, permet également d'éviter un blocage de la pompe si celle-ci n'est pas utilisée durant un certain temps. La compatibilité permet également de supprimer tout risque de pollution du liquide pompé. Les éléments moulés étant relativement peu coûteux, les cartouches peuvent être utilisées lorsque les conditions exigent un remplacement fréquent, par exemple dans des conditions nécessitant une stérilité stricte. Le principe de la cartouche qui est indépendante des autres éléments de la pompe permet de concevoir, sur la base du même logement de cartouche, différentes pompes de puissances et fréquences différentes. Les dessins annexés illustrent schématiquement les principes de l'invention. La figure 1 est une vue en coupe d'ensemble d'une pompe avec cartouche. La figure 2 est une vue en coupe des éléments cylindre et bouchon en position assemblée. La figure 3 est une vue en coupe de l'élément cylindre. La figure 4 est une vue en coupe de l'élément bouchon. En référence tout d'abord à la figure 1, une pompe électromagnétique comporte un boîtier 1 qui comporte les différents éléments électroniques et mécaniques nécessaires , tel que la bobine 4, à la création d'un mouvement oscillant. Le boîtier 1 comporte un logement 10 dans lequel une cartouche constituée par un élément cylindre 2 et un élément bouchon 3 sont montés et assemblés entre eux par chassage, par fusion ou par collage par exemple. Les extrémités des éléments cylindre et bouchon présentent une forme d'embout sur lequels des tuyaux d'amenée et de sortie de liquide sont destinés à être montés. Ces embouts présentent des ouvertures cylindriques pour le passage du liquide. Des éléments oscillants nécessaires pour le fonctionnement de la pompe, le piston 5 qui comporte un alésage de passage de liquide , les ressorts 6, 8 et 11, les valves 7 et 9 , sont montés dans le cylindre, l'oscillation du piston 5 étant activée par la bobine 4 et les différents éléments électroniques et électriques. Le piston ainsi que tous les éléments oscillants se trouvant dans le cylindre sont uniquement en contact avec l'élément cylindre 2 et l'élément bouchon 3. Lors du montage, les différents éléments oscillants sont montés dans l'élément cylindre 2 de la cartouche, et l'élément bouchon 3 est monté d'une manière fixe par chassage, fusion ou collage dans l'élément cylindre 2. La cartouche ainsi constituée est montée dans le logement 10 du boîtier de la pompe et est maintenue d'une manière fixe par un dispositif de fixation 12 qui peut être constitué par un circlips par exemple ou tout autre dispositif de fixation amovible. La figure 2 montre les éléments cylindre 2 et bouchon 3 en position assemblée. L'élément cylindre 2 comporte un épaulement 14 qui vient en butée contre la partie supérieure du boîtier de la pompe, et comporte une gorge 13 qui coopère lors du montage de la cartouche avec un élément de fixation qui peut être un circlips par exemple. La figure 3 est une vue de détail de l'élément cylindre 2 qui comporte la gorge 13 La figure 4 est une vue de détail de l'élément bouchon 3. Un dispositif de fixation de la cartouche au boîtier par circlips est susmentionné à titre d'exemple. D'autres formes de dispositifs de fixation amovibles peuvent être utilisés, par exemple du vissage, le but essentiel étant de pouvoir si nécessaire remplacer rapidement et à moindre coût la cartouche. Le remplacement rapide de la cartouche est particulièrement important lorsque la pompe est utilisée dans les milieux nécessitant une stérilité absolue ou lorsque la même pompe est utilisée pour des produits différents. Compatibility, while guaranteeing optimal friction of the elements which oscillate in the cylinder, also makes it possible to avoid blocking of the pump if it is not used for a certain time. Compatibility also eliminates any risk of pollution of the pumped liquid. Since the molded elements are relatively inexpensive, the cartridges can be used when the conditions require frequent replacement, for example under conditions requiring strict sterility. The principle of the cartridge which is independent of the other elements of the pump makes it possible to design, on the basis of the same cartridge housing, different pumps of different powers and frequencies. The accompanying drawings schematically illustrate the principles of the invention. Figure 1 is an overall sectional view of a pump with cartridge. Figure 2 is a sectional view of the cylinder and plug elements in the assembled position. Figure 3 is a sectional view of the cylinder element. Figure 4 is a sectional view of the plug element. Referring firstly to FIG. 1, an electromagnetic pump comprises a housing 1 which comprises the various electronic and mechanical elements necessary, such as the coil 4, for the creation of an oscillating movement. The housing 1 comprises a housing 10 in which a cartridge constituted by a cylinder element 2 and a plug element 3 are mounted and assembled together by driving out, by fusion or by gluing for example. The ends of the cylinder and plug elements have the shape of a nozzle on which liquid supply and outlet pipes are intended to be mounted. These tips have cylindrical openings for the passage of liquid. Oscillating elements necessary for the operation of the pump, the piston 5 which has a liquid passage bore, the springs 6, 8 and 11, the valves 7 and 9, are mounted in the cylinder, the oscillation of the piston 5 being activated by the coil 4 and the various electronic and electrical elements. The piston and all the oscillating elements in the cylinder are only in contact with the cylinder element 2 and the plug element 3. During assembly, the various oscillating elements are mounted in the cylinder element 2 of the cartridge, and the plug element 3 is fixedly mounted by driving, melting or gluing in the cylinder element 2. The cartridge thus formed is mounted in the housing 10 of the pump housing and is held in a fixed manner by a fixing device 12 which can be constituted by a circlip for example or any other removable fixing device. Figure 2 shows the cylinder 2 and plug 3 elements in the assembled position. The cylinder element 2 has a shoulder 14 which abuts against the upper part of the pump housing, and has a groove 13 which cooperates during mounting of the cartridge with a fixing element which can be a circlip for example. Figure 3 is a detail view of the cylinder element 2 which includes the groove 13 Figure 4 is a detail view of the plug element 3. A device for fixing the cartridge to the housing by circlips is mentioned above by way of 'example. Other forms of removable fixing devices can be used, for example screwing, the essential aim being to be able to replace the cartridge quickly and at low cost if necessary. The rapid replacement of the cartridge is particularly important when the pump is used in environments requiring absolute sterility or when the same pump is used for different products.

Claims

REVENDICATIONS
1. Pompe avec cartouche constitué par un boîtier (1) qui comporte des éléments électroniques ou électriques qui provoquent un mouvement oscillant qui actionne un piston (5), caractérisée par le fait que le piston (5), les valves, les ressorts, sont montés dans une cartouche qui est constituée par un élément cylindre (2) et par un élément bouchon (3) qui sont assemblés entre eux lors du montage de la cartouche qui est elle-même montée d'une manière amovible dans un logement (10) du boîtier (1) et maintenue par un dispositif mécanique amovible, et par le fait que la cartouche est réalisée dans une matière synthétique compatible avec le liquide à pomper.1. Pump with cartridge constituted by a housing (1) which comprises electronic or electrical elements which cause an oscillating movement which actuates a piston (5), characterized in that the piston (5), the valves, the springs, are mounted in a cartridge which is constituted by a cylinder element (2) and by a plug element (3) which are assembled together during assembly of the cartridge which is itself removably mounted in a housing (10) of the housing (1) and held by a removable mechanical device, and by the fact that the cartridge is made of a synthetic material compatible with the liquid to be pumped.
2. Pompe selon la revendication 1, caractérisée par le fait que l'élément cylindre et l'élément bouchon sont assemblés par chassage, par fusion ou par collage.2. Pump according to claim 1, characterized in that the cylinder element and the plug element are assembled by flushing, by fusion or by bonding.
3. Pompe selon la revendication 1, caractérisée par le fait que l'élément cylindre de la cartouche comporte un épaulement dans sa partie supérieure et une gorge dans sa partie inférieure. 3. Pump according to claim 1, characterized in that the cylinder element of the cartridge has a shoulder in its upper part and a groove in its lower part.
PCT/CH2004/000742 2003-12-17 2004-12-16 Cartridge pump WO2005059361A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04820378A EP1761703B1 (en) 2003-12-17 2004-12-16 Cartridge pump
DE602004018040T DE602004018040D1 (en) 2003-12-17 2004-12-16 CARTRIDGE PUMP

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2160/03 2003-12-17
CH02160/03A CH703076B1 (en) 2003-12-17 2003-12-17 Pump with cartridge.

Publications (1)

Publication Number Publication Date
WO2005059361A1 true WO2005059361A1 (en) 2005-06-30

Family

ID=34683133

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2004/000742 WO2005059361A1 (en) 2003-12-17 2004-12-16 Cartridge pump

Country Status (6)

Country Link
EP (1) EP1761703B1 (en)
AT (1) ATE415558T1 (en)
CH (1) CH703076B1 (en)
DE (1) DE602004018040D1 (en)
ES (1) ES2317084T3 (en)
WO (1) WO2005059361A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3479959A (en) * 1967-10-23 1969-11-25 William N Christensen Electromagnetic metering pump
DE1924008A1 (en) * 1969-05-10 1970-11-26 Kurz Geraetebau Fa Pressure pump for fluids
US3606595A (en) * 1969-02-03 1971-09-20 Jidosha Kiki Co Electromagnetic pump utilizing a permanent magnet
FR2477643A1 (en) * 1980-03-10 1981-09-11 Manlio De Dionigi IMPROVEMENT TO ELECTROMAGNETIC PUMPS, ESPECIALLY FOR NON-VISCOUS FLUIDS
EP0288216A1 (en) * 1987-04-15 1988-10-26 Eaton S.A.M. Electrical fluid pump
DE19542914A1 (en) * 1994-12-23 1996-06-27 Keller Kg Wilhelm Electromagnetic vibrating piston pump and mfg. process

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3479959A (en) * 1967-10-23 1969-11-25 William N Christensen Electromagnetic metering pump
US3606595A (en) * 1969-02-03 1971-09-20 Jidosha Kiki Co Electromagnetic pump utilizing a permanent magnet
DE1924008A1 (en) * 1969-05-10 1970-11-26 Kurz Geraetebau Fa Pressure pump for fluids
FR2477643A1 (en) * 1980-03-10 1981-09-11 Manlio De Dionigi IMPROVEMENT TO ELECTROMAGNETIC PUMPS, ESPECIALLY FOR NON-VISCOUS FLUIDS
EP0288216A1 (en) * 1987-04-15 1988-10-26 Eaton S.A.M. Electrical fluid pump
DE19542914A1 (en) * 1994-12-23 1996-06-27 Keller Kg Wilhelm Electromagnetic vibrating piston pump and mfg. process

Also Published As

Publication number Publication date
ATE415558T1 (en) 2008-12-15
EP1761703B1 (en) 2008-11-26
CH703076B1 (en) 2011-11-15
EP1761703A1 (en) 2007-03-14
DE602004018040D1 (en) 2009-01-08
ES2317084T3 (en) 2009-04-16

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