EP2313655B1 - Diaphragm pump with a crinkle diaphragm of improved efficiency - Google Patents

Diaphragm pump with a crinkle diaphragm of improved efficiency Download PDF

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Publication number
EP2313655B1
EP2313655B1 EP09802554.7A EP09802554A EP2313655B1 EP 2313655 B1 EP2313655 B1 EP 2313655B1 EP 09802554 A EP09802554 A EP 09802554A EP 2313655 B1 EP2313655 B1 EP 2313655B1
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EP
European Patent Office
Prior art keywords
actuator
diaphragm
pump
stroke
undulating
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EP09802554.7A
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German (de)
French (fr)
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EP2313655A1 (en
Inventor
Jean Baptiste Drevet
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AMS R&D Sas
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AMS R&D Sas
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    • 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
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009—Special features
    • F04B43/0018—Special features the periphery of the flexible member being not fixed to the pump-casing, but acting as a valve
    • 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
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/06—Pumps having fluid drive
    • 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
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F04B43/09—Pumps having electric drive

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Description

La présente invention concerne une pompe à membrane ondulante de rendement amélioré.The present invention relates to an undulating diaphragm pump with improved efficiency.

ARRIERE-PLAN DE L'INVENTIONBACKGROUND OF THE INVENTION

On connaît, par exemple du document FR2744769 , des pompes à membrane ondulante montée pour onduler entre deux flasques sous l'action d'au moins un actionneur électromagnétique linéaire en vue de transférer du fluide d'une entrée de la pompe à une sortie de la pompe entre la membrane et les flasques.We know, for example from the document FR2744769 undulating diaphragm pumps mounted to wave between two flanges under the action of at least one linear electromagnetic actuator for transferring fluid from an inlet of the pump to an outlet of the pump between the diaphragm and the flanges.

La membrane est fixée sur un support de membrane rigide. La partie mobile de l'actionneur est en général attelée directement au support de membrane et provoque une oscillation transversale du bord externe de la membrane qui provoque à son tour des ondulations de la membrane perpendiculairement à son plan qui ont pour effet de propulser le fluide de l'entrée vers la sortie de la pompe.The membrane is fixed on a rigid membrane support. The movable portion of the actuator is generally hitched directly to the membrane support and causes a transverse oscillation of the outer edge of the membrane which in turn causes undulations of the membrane perpendicular to its plane which have the effect of propelling the fluid of the inlet to the outlet of the pump.

Le ou les actionneurs sont avantageusement choisis du type à aimants mobiles ou encore du type réluctants. Cependant, les masses mises en mouvement par ce type d'actionneur sont relativement importantes car elles comprennent par exemple, les aimants, les supports d'aimant, les pièces de liaison au support de membrane, les ressorts de suspension. Dans une telle pompe, la valeur de la masse des parties mobiles de l'actionneur affecte le couplage de la membrane ondulante avec le fluide, l'efficacité du mouvement de la membrane et le rendement de la tête de pompe, limite la fréquence de fonctionnement possible de l'actionneur, et conduit à des bruits et des vibrations qui peuvent être gênantes.
L'association d'un ressort de suspension de la masse mobile ne résout pas ces problèmes de fonctionnement.The actuator (s) are advantageously chosen from the type with moving magnets or else from the reluctant type. However, the masses set in motion by this type of actuator are relatively important because they include, for example, the magnets, the magnet supports, the connecting parts to the membrane support, the suspension springs. In such a pump, the mass value of the moving parts of the actuator affects the coupling of the undulating diaphragm with the fluid, the efficiency of the diaphragm movement and the efficiency of the pumphead, limits the operating frequency possible actuator, and leads to noises and vibrations that can be annoying.
The combination of a suspension spring of the moving mass does not solve these operating problems.

OBJET DE L'INVENTIONOBJECT OF THE INVENTION

L'invention a pour objet une pompe à membrane ondulante de rendement amélioré, ne présentant pas les inconvénients précités.The subject of the invention is an undulating diaphragm pump with improved efficiency, which does not have the abovementioned disadvantages.

BREVE DESCRIPTION DE L'INVENTIONBRIEF DESCRIPTION OF THE INVENTION

En vue de la réalisation de ce but, on propose une pompe à membrane ondulante montée sur un support pour onduler entre deux flasques sous l'action d'au moins un actionneur électromagnétique en vue de transférer du fluide d'une entrée de la pompe à une sortie de la pompe. Selon l'invention, la pompe comporte des moyens d'adaptation reliant le support de membrane et une partie mobile de l'actionneur pour réduire la course de la partie mobile de l'actionneur de sorte que celle-ci soit plus petite que la course du support de membrane.With a view to achieving this object, an undulating diaphragm pump mounted on a support is proposed for undulating between two flanges under the action of at least one electromagnetic actuator in order to transfer fluid from an inlet of the pump to an output of the pump. According to the invention, the pump comprises adaptation means connecting the membrane support and a moving part of the actuator for reducing the stroke of the moving part of the actuator so that it is smaller than the stroke of the membrane support.

Une telle diminution de la course de la partie mobile de l'actionneur permet d'améliorer le couplage de la membrane ondulante avec le fluide, l'efficacité du mouvement de la membrane en optimisant la force de réaction de celle-ci, et donc d'améliorer le rendement de propulsion. Au niveau de l'actionneur, elle permet d'accroître la fréquence de fonctionnement, de diminuer les pertes mécaniques liées aux frictions et frottements visqueux. Et bien sûr, la diminution de la course contribue à diminuer les vibrations générées par l'actionneur et subies par la pompe. Cette diminution permet en outre d'augmenter le ratio force/masse, ce qui permet de diminuer les pertes cinétiques liées au mouvement des masses, et donc d'augmenter le rendement global de la pompe. Ces améliorations conduisent à un meilleur rendement de tête de pompe et à un actionneur moins encombrant.Such a reduction in the stroke of the moving part of the actuator makes it possible to improve the coupling of the undulating membrane with the fluid, the efficiency of the movement of the membrane by optimizing the reaction force thereof, and therefore of improve the propulsion efficiency. At the level of the actuator, it makes it possible to increase the frequency of operation, to reduce the mechanical losses related to friction and viscous friction. And of course, the decrease in stroke helps to reduce the vibrations generated by the actuator and suffered by the pump. This reduction also makes it possible to increase the force / mass ratio, which makes it possible to reduce the kinetic losses related to the movement of the masses, and therefore to increase the overall efficiency of the pump. These improvements lead to better pump head performance and a less bulky actuator.

Selon un mode particulier de réalisation de l'invention, les moyens d'adaptation comportent au moins un levier dont une extrémité est articulée sur le support de membrane et l'autre extrémité est articulée sur un point fixe, la partie mobile de l'actionneur étant attelée au levier de sorte que sa course soit plus petite que la course du support de membrane.According to a particular embodiment of the invention, the adaptation means comprise at least one lever whose one end is articulated on the membrane support and the other end is articulated on a fixed point, the movable part of the actuator. being hitched to the lever so that its stroke is smaller than the stroke of the membrane support.

BREVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

L'invention sera mieux comprise à la lumière des figures des dessins annexés, parmi lesquelles :

  • la figure 1 est une vue schématique en coupe d'un exemple de réalisation d'une pompe selon un premier principe de mise en oeuvre de l'invention ;
  • la figure 2 est une vue en coupe d'un premier exemple de réalisation d'une pompe selon un deuxième principe de mise en oeuvre de l'invention ;
  • la figure 2 bis est une vue en coupe d'un deuxième exemple de réalisation d'une pompe selon le deuxième principe de mise en oeuvre de l'invention;
  • la figure 3 est une vue schématique en coupe d'une pompe selon un troisième principe de mise en oeuvre de l'invention ;
  • la figure 4 est une vue schématique en coupe d'une pompe selon un quatrième principe de mise en oeuvre de l'invention.
The invention will be better understood in the light of the figures of the accompanying drawings, among which:
  • the figure 1 is a schematic sectional view of an exemplary embodiment of a pump according to a first embodiment of the invention;
  • the figure 2 is a sectional view of a first embodiment of a pump according to a second principle of implementation of the invention;
  • the figure 2 bis is a sectional view of a second embodiment of a pump according to the second principle of implementation of the invention;
  • the figure 3 is a schematic sectional view of a pump according to a third principle of implementation of the invention;
  • the figure 4 is a schematic sectional view of a pump according to a fourth principle of implementation of the invention.

DESCRIPTION DETAILLEE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION

En référence à la figure 1, et selon un premier principe de mise en oeuvre de l'invention, la pompe illustrée comporte deux flasques 1 généralement discoïdales entre lesquels s'étend une membrane ondulante 2 également discoïdale. Celle-ci est fixée par son bord externe à un support de membrane 3 rigide auquel on impose des oscillations qui provoquent une ondulation de la membrane 2 qui force le fluide à s'écouler depuis une entrée 4 de la pompe vers une sortie 5. Les oscillations du support 3 de la membrane 2 sont générées par un actionneur électromécanique 10 selon les dispositions suivantes.With reference to the figure 1 , and according to a first principle of implementation of the invention, the illustrated pump comprises two flanges 1 generally discoidal between which extends an undulating membrane 2 also discoidal. This is fixed by its outer edge to a rigid membrane support 3 which is imposed oscillations that cause a ripple of the membrane 2 which forces the fluid to flow from an inlet 4 of the pump to an outlet 5. The oscillations of the support 3 of the membrane 2 are generated by an electromechanical actuator 10 according to the following provisions.

La pompe comporte des moyens d'adaptation, en l'occurrence ici deux leviers 6 qui sont chacun articulés d'une part à un point fixe 7, et d'autre part au support de membrane 3 de la membrane. L'actionneur 10 comporte deux parties mobiles 11 qui sont ici chacune modélisées par une masse mobile 12 associée à un ressort 13 attelé à un point fixe et par exemple à une partie solidaire des flasques. Le ressort 13 a une raideur telle que l'ensemble formé par la masse mobile et le ressort ait une fréquence de résonance proche d'une fréquence de fonctionnement de la pompe. Ici, la masse mobile 12 est attelée au levier 6 en un point 14 situé ici entre les deux extrémités du levier 6. L'excitation électromagnétique de la masse mobile 12 par une bobine fixe associée 15 qui provoque une oscillation de la masse mobile 12 selon une direction Z perpendiculaire au plan moyen de la membrane 2, ce qui provoque une oscillation du support de membrane 3 de la membrane, et, partant, des ondulations de la membrane 2 entre les flasques 1 qui résultent de la propagation d'une onde progressive dont la membrane est le support. Ici, la masse mobile 12 porte des aimants permanents.The pump comprises adaptation means, in this case here two levers 6 which are each articulated firstly to a fixed point 7, and secondly to the membrane support 3 of the membrane. The actuator 10 comprises two mobile parts 11 which are here each modeled by a movable mass 12 associated with a spring 13 coupled to a fixed point and for example to a portion integral with the flanges. The spring 13 has a stiffness such that the assembly formed by the moving mass and the spring has a resonance frequency close to an operating frequency of the pump. Here, the mobile mass 12 is coupled to the lever 6 at a point 14 located here between the two ends of the lever 6. The electromagnetic excitation of the mobile mass 12 by an associated fixed coil 15 which causes an oscillation of the mobile mass 12 according to a direction Z perpendicular to the median plane of the membrane 2, which causes an oscillation of the membrane support 3 of the membrane, and hence the undulations of the membrane 2 between the flanges 1 which result from the propagation of a progressive wave whose membrane is the support. Here, the mobile mass 12 carries permanent magnets.

Sur la figure 1, L est la longueur du levier (comptée parallèlement au plan moyen de la membrane) et d la distance, comptée parallèlement à L, entre l'extrémité fixe du levier 6 et le point d'attelage de la masse mobile 12 de l'actionneur 10 sur le levier. On constate ici que la distance d est inférieure à la distance L, et donc que la course de l'actionneur 10, qui est dans le rapport d/L avec le déplacement du support de membrane 3 de la membrane, est donc plus petite que ce déplacement. En outre, tout se passe comme si la masse inertielle de valeur M du support de membrane était augmentée d'une quantité d.m/L où m est la valeur de la masse mobile 12. La masse inertielle rapportée est donc plus faible que la masse inertielle rapportée dans une pompe connue dans laquelle l'actionneur est attelé directement au support de membrane, qui aurait été égale à m. Ces dispositions contribuent à améliorer l'efficacité de la membrane, rendre possible un accroissement de fréquence de fonctionnement et à diminuer les vibrations de la pompe.On the figure 1 , L is the length of the lever (measured parallel to the mean plane of the membrane) and the distance, measured parallel to L, between the fixed end of the lever 6 and the coupling point 12 of the moving mass of the actuator 10 on the lever. It can be seen here that the distance d is less than the distance L, and therefore that the stroke of the actuator 10, which is in the ratio d / L with the displacement of the membrane support 3 of the membrane, is therefore smaller than this displacement. In addition, everything happens as if the inertial mass of value M of the membrane support was increased by an amount dm / L where m is the value of the moving mass 12. The inertial mass reported is therefore lower than the inertial mass reported in a known pump in which the actuator is coupled directly to the membrane support, which would have been equal to m . These arrangements help to improve the efficiency of the membrane, make it possible to increase the operating frequency and to reduce the vibrations of the pump.

Le principe de l'invention étant expliqué, la figure 2 illustre un exemple de mise en oeuvre pratique de ce principe. Ici, le support de membrane 3 est actionné en deux points diamétralement opposés. Les deux leviers 6' sont ici formés dans une seule tôle 20 découpée et pliée à forme.The principle of the invention being explained, the figure 2 illustrates an example of practical implementation of this principle. Here, the membrane support 3 is actuated at two diametrically opposite points. The two levers 6 'are here formed in a single sheet 20 cut and folded form.

Plus précisément, la tôle 20 comporte une partie centrale 21 formée en U flexible formant ressort de rappel qui est fixée au corps de la pompe. Puis la tôle 20 se prolonge par deux bras formant leviers 6' dont les bords 22 sont repliés pour donner une grande rigidité en flexion aux bras. Les bras se terminent par des portions de liaison 23 au support de membrane. Chacun des bras est attaqué en des points 14, sensiblement en son milieu, par un actionneur. Ainsi, la même pièce forme à la fois levier et ressort de rappel. La raideur de cette partie ressort peut être fixée à une valeur telle qu'associée à la valeur de la masse mobile, la fréquence de résonance de cet oscillateur soit proche de la fréquence de fonctionnement recherchée pour la pompe.More specifically, the plate 20 comprises a central portion 21 formed of flexible U-shaped return spring which is fixed to the body of the pump. Then the sheet 20 is extended by two lever arms 6 'whose edges 22 are folded to give a high flexural rigidity to the arms. The arms terminate with connecting portions 23 to the membrane support. Each of the arms is attacked at points 14, substantially in the middle, by an actuator. Thus, the same piece forms both lever and return spring. The stiffness of this spring portion can be set to a value such as associated with the value of the moving mass, the resonance frequency of this oscillator is close to the desired operating frequency for the pump.

De nombreuses variantes peuvent être réalisées dans le cadre de l'invention, avec un ou plusieurs leviers, couplés ou non, associés ou non à des ressorts de rappels, les actionneurs pouvant attaquer le levier de l'autre côté du point d'articulation du levier sur le corps de pompe.Numerous variants can be made within the scope of the invention, with one or more levers, coupled or not, associated or not with recoil springs, the actuators being able to attack the lever on the other side of the articulation point of the lever on the pump body.

Selon le mode de réalisation de l'invention illustré à la figure 2 bis, les bras formant leviers 6' portent des aimants permanents 45 soumis à l'action de la bobine 15, de sorte que les bras lestés des aimants forment eux-mêmes la masse mobile de l'actionneur excitée par la bobine. Les aimants 45 sont portés par les bras à distance du support de membrane, de préférence entre le point d'articulation du levier et le point d'attelage du levier au support de membrane, de sorte que la course de cette partie mobile est effectivement plus petite que le déplacement du support de membrane. Cette disposition rend l'ensemble particulièrement simple et compact.According to the embodiment of the invention illustrated in figure 2 bis, the lever arms 6 'carry permanent magnets 45 subjected to the action of the coil 15, so that the weighted arms of the magnets themselves form the moving mass of the actuator excited by the coil. The magnets 45 are carried by the arms away from the membrane support, preferably between the point of articulation of the lever and the coupling point of the lever to the membrane support, so that the stroke of this moving part is effectively more small as the displacement of the membrane support. This arrangement makes the set particularly simple and compact.

Selon maintenant un autre principe de mise en oeuvre de l'invention illustré à la figure 3, les moyens d'adaptation comprennent un ressort de connexion ou suspension 25 interposé entre le support de membrane 3 et la masse mobile 12 de l'actionneur 10. La suspension 25 permet de diminuer la course de la masse mobile 12 de l'actionneur, pour une course donnée du support de membrane 3. Cette disposition conduit à un actionneur dont les masses mobiles 12 oscillent avec une amplitude plus faible, au moins pour une plage de fréquence d'excitation donnée, de sorte que les vibrations sont diminuées. Le ressort 13 est ici constitué d'une lame coudée élastiquement déformable.According to now another principle of implementation of the invention illustrated in the figure 3 , the adaptation means comprise a connection or suspension spring 25 interposed between the membrane support 3 and the mobile mass 12 of the actuator 10. The suspension 25 makes it possible to reduce the stroke of the mobile mass 12 of the actuator, for a given stroke of the membrane support 3. This arrangement leads to an actuator whose movable masses 12 oscillate with a lower amplitude, at least for a given excitation frequency range, so that the vibrations are reduced. The spring 13 here consists of an elastically deformable bent blade.

Selon un autre mode de réalisation de l'invention illustré à la figure 4, la pompe comporte des moyens d'adaptation consistant en un adaptateur de course pneumatique ou hydraulique 30. Ici, la masse mobile 12 affecte ici une forme annulaire et coulisse alternativement sous l'impulsion électromagnétique de la bobine fixe 15. L'adaptateur de course 30 comprend une membrane A et une membrane B qui délimitent une chambre étanche 32 remplie de gaz ou de liquide, selon le cas. La membrane A est attelée à la masse mobile 12, tandis que la membrane B est attelée au support de membrane 3 via un bras 34.According to another embodiment of the invention illustrated in figure 4 , the pump comprises adaptation means consisting of a pneumatic or hydraulic stroke adapter 30. Here, the moving mass 12 here affects an annular shape and slides alternately under the electromagnetic pulse of the fixed coil 15. The race adapter 30 comprises a membrane A and a membrane B which delimit a sealed chamber 32 filled with gas or liquid, as the case may be. Membrane A is coupled to the moving mass 12, while the membrane B is coupled to the membrane support 3 via an arm 34.

La membrane A comporte un bord A1 qui est pincé, et possède un fond rigide A2 formant piston attelé à la masse mobile 12 et reliée au bord A1 par un soufflet A3. Quant à la membrane B, elle comporte un bord B1 fixe relié à un manchon central B3 attelé au bras 34, et relié au bord B1 par un soufflet B2.The membrane A has an edge A1 which is pinched, and has a rigid bottom A2 forming a piston coupled to the moving mass 12 and connected to the edge A1 by a bellows A3. As for the membrane B, it comprises a fixed edge B1 connected to a central sleeve B3 coupled to the arm 34, and connected to the edge B1 by a bellows B2.

La surface de la membrane A est plus importante que la surface de la membrane B. Ainsi, lorsque la masse mobile 12 se déplace d'une course donnée, elle impose au manchon B3 de la membrane B un déplacement plus important que la course de la masse mobile 12. Il s'ensuit que la masse mobile 12 a un déplacement plus petit que celui du support de membrane 3.The surface of the membrane A is greater than the surface of the membrane B. Thus, when the moving mass 12 moves by a given stroke, it imposes on the sleeve B3 of the membrane B a greater displacement than the stroke of the mobile mass 12. It follows that the mobile mass 12 has a displacement smaller than that of the membrane support 3.

L'invention n'est pas limitée à ce qui vient d'être décrit, mais englobe au contraire toute variante entrant dans le cadre défini par les revendications. En particulier, bien que l'invention a été ici illustrée en application à des pompes à membrane ondulante discoïdale, il est bien évident que l'invention s'applique à des pompes à membranes ondulantes en forme de lame ou annulaires.The invention is not limited to what has just been described, but on the contrary covers any variant within the scope defined by the claims. In particular, although the invention has been illustrated here in application to discoidal undulating diaphragm pumps, it is obvious that the invention is applicable to wave-shaped or annular undulating diaphragm pumps.

L'invention s'applique à tout type d'actionneur et notamment les actionneurs linéaire ou rotatif, à déplacement angulaire...The invention applies to any type of actuator and in particular the linear or rotary actuators, with angular displacement ...

Claims (7)

  1. A pump having an undulating diaphragm (2) mounted on a support (3) for undulating between two end plates (1) under drive from at least one electromagnetic actuator in order to transfer a fluid between an inlet of the pump and an outlet of the pump, the pump being characterized in that it includes adapter means (6; 20; 30) connecting the diaphragm support to a movable portion (12) of the actuator in order to shorten the stroke of the movable mass of the actuator such that its stroke is shorter than the stroke of the diaphragm support (3).
  2. An undulating diaphragm pump according to claim 1, wherein the adapter means comprise a lever (6) hinged firstly to the diaphragm support and secondly to a stationary point, the movable portion of the actuator being coupled to a point of the lever.
  3. An undulating diaphragm pump according to claim 2, having two levers (6') that are made in a portion of sheet metal (20) that is cut and shaped to present a central bridge (21) forming a spring suspending the movable portion of the actuator and from which the two levers extend.
  4. An undulating diaphragm pump according to claim 3, wherein the spring presents stiffness that is set in such a manner that in association with the movable mass the assembly formed by the movable mass and the spring has a resonant frequency close to an operating frequency of the pump.
  5. An undulating diaphragm pump according to claim 2, having two levers (6', 6') forming a support for the movable mass (45) of the actuator.
  6. An undulating diaphragm pump according to claim 1, wherein the adapter means comprise a suspension (25) interposed between the diaphragm support and the movable portion (12) of the actuator.
  7. An undulating diaphragm pump according to claim 1, wherein the adapter means comprise a pneumatic or hydraulic stroke adapter (30) for coupling an arm (34) connected to the diaphragm support to the movable portion of the actuator in such a manner that the movable portion of the actuator presents a stroke that is shorter than the stroke of the arm.
EP09802554.7A 2008-08-01 2009-07-23 Diaphragm pump with a crinkle diaphragm of improved efficiency Active EP2313655B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0804390A FR2934652B1 (en) 2008-08-01 2008-08-01 IMPROVED PERFORMANCE MEMBRANE PUMP WITH IMPROVED PERFORMANCE.
PCT/FR2009/000915 WO2010012887A1 (en) 2008-08-01 2009-07-23 Diaphragm pump with a crinkle diaphragm of improved efficiency

Publications (2)

Publication Number Publication Date
EP2313655A1 EP2313655A1 (en) 2011-04-27
EP2313655B1 true EP2313655B1 (en) 2017-04-12

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US (1) US8714944B2 (en)
EP (1) EP2313655B1 (en)
JP (1) JP5291193B2 (en)
CN (1) CN102112743B (en)
CA (1) CA2767332C (en)
DK (1) DK2313655T3 (en)
ES (1) ES2632173T3 (en)
FR (1) FR2934652B1 (en)
WO (1) WO2010012887A1 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0224986D0 (en) 2002-10-28 2002-12-04 Smith & Nephew Apparatus
GB0325129D0 (en) 2003-10-28 2003-12-03 Smith & Nephew Apparatus in situ
CA2872297C (en) 2006-09-28 2016-10-11 Smith & Nephew, Inc. Portable wound therapy system
CN101868203B (en) 2007-11-21 2014-10-22 史密夫及内修公开有限公司 Wound dressing
GB201015656D0 (en) 2010-09-20 2010-10-27 Smith & Nephew Pressure control apparatus
US9084845B2 (en) 2011-11-02 2015-07-21 Smith & Nephew Plc Reduced pressure therapy apparatuses and methods of using same
JP6276251B2 (en) 2012-03-20 2018-02-07 スミス アンド ネフュー ピーエルシーＳｍｉｔｈ ＆ Ｎｅｐｈｅｗ Ｐｕｂｌｉｃ Ｌｉｍｉｔｅｄ Ｃｏｍｐａｎｙ Operation control of decompression therapy system based on dynamic determination of duty cycle threshold
US9427505B2 (en) 2012-05-15 2016-08-30 Smith & Nephew Plc Negative pressure wound therapy apparatus
CN104214079B (en) * 2013-06-05 2018-04-27 北京谊安医疗系统股份有限公司 Air compressor
FR3016811A1 (en) * 2014-01-24 2015-07-31 Saint Gobain Performance Plast CONTAINER-MIXER
FR3026091B1 (en) * 2014-09-24 2023-10-06 Zodiac Aerotechnics METHOD AND SYSTEM FOR CIRCULATING FUEL IN AN AIRCRAFT
WO2016103032A1 (en) 2014-12-22 2016-06-30 Smith & Nephew Plc Negative pressure wound therapy apparatus and methods
US10166319B2 (en) 2016-04-11 2019-01-01 CorWave SA Implantable pump system having a coaxial ventricular cannula
US9968720B2 (en) 2016-04-11 2018-05-15 CorWave SA Implantable pump system having an undulating membrane
EP3600479A1 (en) 2017-03-31 2020-02-05 Corwave SA Implantable pump system having a rectangular membrane
FR3073578B1 (en) * 2017-11-10 2019-12-13 Corwave FLUID CIRCULATOR WITH RINGING MEMBRANE
US10188779B1 (en) 2017-11-29 2019-01-29 CorWave SA Implantable pump system having an undulating membrane with improved hydraulic performance
US11009447B2 (en) * 2017-12-11 2021-05-18 Honeywell International Inc. Micro airflow generator for miniature particulate matter sensor module
CN113795295A (en) 2019-03-15 2021-12-14 科瓦韦公司 System and method for controlling an implantable blood pump
EP4114504A1 (en) 2020-03-06 2023-01-11 CorWave SA Implantable blood pumps comprising a linear bearing
FR3124658A1 (en) * 2021-06-28 2022-12-30 Finx Fluid flow generating device
WO2023209547A1 (en) 2022-04-26 2023-11-02 CorWave SA Blood pumps having an encapsulated actuator

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB662047A (en) * 1949-11-21 1951-11-28 George Aksel Thiberg Improvements in diaphragm pumps and compressors
FR1252149A (en) * 1959-12-16 1961-01-27 Chausson Usines Sa Electromagnetically maintained oscillating motion compressor
FR2744769B1 (en) * 1996-02-12 1999-02-12 Drevet Jean Baptiste FLUID CIRCULATOR WITH VIBRATING MEMBRANE
EP0936355A3 (en) * 1998-02-10 2001-04-18 Ohken Seiko Co., Ltd. Reciprocating pump
US6899530B2 (en) * 2002-10-31 2005-05-31 Wanner Engineering, Inc. Diaphragm pump with a transfer chamber vent with a longitudinal notch on the piston cylinder
FR2861910B1 (en) * 2003-10-29 2006-01-13 Jean Baptiste Drevet ELECTROMAGNETIC MACHINE WITH DEFORMABLE MEMBRANE AND ELECTROMAGNETIC MOTOR ADAPTED TO SUCH A MACHINE
FR2893991B1 (en) * 2005-11-30 2013-10-11 Jean Baptiste Drevet MEMBRANE CIRCULATOR

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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US8714944B2 (en) 2014-05-06
JP5291193B2 (en) 2013-09-18
CA2767332A1 (en) 2010-02-04
FR2934652B1 (en) 2013-01-11
EP2313655A1 (en) 2011-04-27
US20110176946A1 (en) 2011-07-21
DK2313655T3 (en) 2017-07-31
CA2767332C (en) 2014-07-08
CN102112743A (en) 2011-06-29
CN102112743B (en) 2015-05-13
ES2632173T3 (en) 2017-09-11
FR2934652A1 (en) 2010-02-05
JP2011529548A (en) 2011-12-08
WO2010012887A1 (en) 2010-02-04

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