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EP0412856A1 - Vorrichtung zur Förderung einer Flüssigkeit - Google Patents

Vorrichtung zur Förderung einer Flüssigkeit Download PDF

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Publication number
EP0412856A1
EP0412856A1 EP90401297A EP90401297A EP0412856A1 EP 0412856 A1 EP0412856 A1 EP 0412856A1 EP 90401297 A EP90401297 A EP 90401297A EP 90401297 A EP90401297 A EP 90401297A EP 0412856 A1 EP0412856 A1 EP 0412856A1
Authority
EP
European Patent Office
Prior art keywords
membrane
annular
fluid
passage
periphery
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
EP90401297A
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English (en)
French (fr)
Other versions
EP0412856B1 (de
Inventor
Michel Moir
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.)
Wilo Salmson France SAS
Original Assignee
Pompes Salmson SAS
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
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Application filed by Pompes Salmson SAS filed Critical Pompes Salmson SAS
Priority to AT90401297T priority Critical patent/ATE100179T1/de
Publication of EP0412856A1 publication Critical patent/EP0412856A1/de
Application granted granted Critical
Publication of EP0412856B1 publication Critical patent/EP0412856B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F04B43/04—Pumps having electric 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
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/14—Machines, pumps, or pumping installations having flexible working members having peristaltic action having plate-like flexible members

Definitions

  • the present invention relates to a device for propelling a fluid, forming a pump and comprising a flexible membrane moved alternately.
  • centrifugal pumps in which a vane rotor causes the centrifugal drive of the liquid which generates pressure dynamically, these pumps do not require a relief valve in the if the liquid cannot be discharged.
  • One of the main drawbacks of these pumps lies precisely in the centrifugal drive of the liquid which causes numerous parasitic pressure drops by friction and by swirling.
  • Such pumps can reach hydraulic efficiencies of 90% for favorable discharge flow-height ratios, but for small units such as those of heating circulators or, thanks to a gap tube, the stator of the electric motor is immersed with the pump rotor in the liquid to be pumped, which facilitates sealing to the outside, the best overall yields are of the order of 20%, that is to say much lower than those of positive displacement pumps or peristaltics.
  • centrifugal pumps have a rotating part subject to wear and to rotational and cavitation vibrations.
  • fluid propulsion devices which use one or more flexible elements such as membranes and which are actuated by a mechanism which gives them alternating displacements which are transmitted to the fluid to be pumped and the result of which circulates the fluid.
  • it is proposed to produce a sort of peristaltic pump in which one side of a fluid pipe consists of a flexible blade driven from the outside by progressive undulatory movements making it possible to entrain the fluid along the conduct.
  • Fluid propulsion devices have made it possible to improve the efficiency of the pumps in order to bring it closer to that of positive displacement pumps, but they do have the disadvantage of a greater mechanical complexity than that of centrifugal air-tube pumps and are not suitable for high pressures.
  • One of the aims of the present invention is precisely to provide a fluid propulsion pump by an elastic membrane, in which the propulsion member is immersed in the fluid like a centrifugal pump rotor but makes it possible to obtain good efficiency. pumping without mechanical complications and practically without risk of wear, at least for the low pumping pressures which are the most used, in particular for central heating circulators.
  • the propulsion device comprises, in a circular body, an annular peripheral space connected to a fluid supply duct, and a central orifice connected to a fluid delivery duct and connected to said annular peripheral space.
  • an annular passage comprised between the smooth parallel or slightly divergent interior surfaces of two walls and extending radially all around the central orifice
  • the flexible membrane extends freely in the annular passage and has respectively a passage in its center transverse which is placed opposite the central orifice and a peripheral zone located in the annular peripheral space and connected to a vibrating member capable of causing the periphery of the membrane to oscillate in a manner substantially perpendicular to the local median plane of the membrane, in such a way that it is subjected from its periphery to concentric oscillation trains s directed towards its center and which, in cooperation with the walls of the annular passage, trap volumes annular fluid by propelling them from the periphery of the membrane towards the center of the latter to discharge them through the discharge conduit.
  • the excitation frequency of the vibrating member corresponds substantially to the natural frequency of the membrane cooperating with the smooth walls of the annular passage and with the fluid to be pumped, so as to put the membrane in resonance at its natural frequency of excitation.
  • the periphery of the membrane is positioned at rest substantially in the mean plane of the oscillations of the periphery of the membrane by an elastic member for holding the periphery of the membrane.
  • the spacing between the two wall surfaces of the annular passage is substantially constant or is increasing from the peripheral annular space to the central orifice , according to a law making it possible to maintain a substantially constant radial passage section, which can lead to greater flexural fatigue of the membrane.
  • the vibrating member is constituted by an electrical coil placed in a magnetic field of air gap and made integral with a peripheral zone of the membrane, said coil being supplied by an alternating electrical voltage of which the frequency is that chosen to cause concentric wave trains on the membrane.
  • the magnetic field of the air gap can be produced by permanent magnets, which constitutes a reliable, economical solution which improves the electrical efficiency of the assembly but which has the drawback of retaining on the interior walls in the vicinity of the air gap. ferrous particles which may be present in the transported liquid, in particular in central heating water.
  • the magnetic field can be produced by an electromagnet exciting the magnetic circuit with low remanence capable of releasing ferrous particles when the pump, or the magnetic circuit may include removable permanent magnets combined with a low remanence magnetic circuit capable of releasing ferrous particles after removal of the permanent magnets.
  • the vibrating member is constituted by a mobile short-circuit winding secured to a peripheral zone of the membrane and forming a frager turn powered by induction, said mobile winding being placed in a magnetic field of air gap created on a magnetic circuit by a fixed winding supplied by an alternating voltage whose frequency is that chosen to cause on the membrane of the wave trains to allow the alternating actuation of the moving winding by the alternating magnetic field air gap.
  • the vibrating member consists of two rings of radial section in the general shape of an isosceles triangle, each fixed on a different side of the flexible membrane at the periphery of the latter in the annular space, in connection with a magnetic circuit, the two air gaps on either side of the inclined surfaces of the two equal sides of the isosceles triangle section are reduced when one of the rings moves in a substantially perpendicular direction at the local median plane of the membrane while the two air gaps of the other ring increase and vice versa for the magnetic circuit of the other ring and in that each of the magnetic circuits of the rings with triangle section is alternately supplied by a different alternation of an alternating electrical voltage whose frequency corresponds substantially to the beat frequency of the membrane and n in particular substantially at the natural frequency of the membrane cooperating with the smooth wall surfaces of the annular passage and with the fluid to be pumped.
  • the periphery of the elastic membrane made of an elastomeric material is advantageously provided with serrated cutouts in each of which is housed and closes a tab of an annular support of the winding and which, in position mounting the membrane in the body, frees a passage for introducing the fluid on either side of the membrane.
  • the flexible membrane may comprise, according to its median plane, a central textile and / or metal frame and it has in the free state a domed shape towards its pierced center, from a substantially planar crown.
  • the flexible membrane has a decreasing thickness from the peripheral zone where it is connected to a vibrating member to its central transverse passage which is crossed by a rigid pipe provided with evacuation vents towards the delivery and serving as a guide for the center of the membrane.
  • the circular body of the propulsion device according to the invention is generally made of a non-magnetic material, for example stainless steel, allowing the magnetic stresses of the vibrating member to pass freely.
  • the device for propelling a fluid shown in FIGS. 1 and 2 comprises a circular body 1 constituted here by two shell-shaped flanges 2 and 3 assembled to each other by crimping at their periphery with the interposition of a interlayer membrane 4 which will be described in more detail below.
  • the flanges 2 and 3 which must have in the embodiment non-magnetic qualities and resistance to pressure, are made for example of stainless steel or aluminum sheet, cold stamped and provided with annular ribs improving the resistance and rigidity.
  • the body 1 determines after its assembly, an annular peripheral space 5 consisting of an upper annular bowl 5a of generally rectangular section distributing the liquid to be propelled and of a lower annular bowl 5 b also of generally rectangular section but deeper and receiving a winding 6 for actuating the membrane 4.
  • the peripheral space 5 is connected to a fluid intake duct 7 while the center of the upper flange 2 has a central fluid delivery orifice 8 connected to a rigid delivery pipe 8a.
  • the central space 9 of the body 1 is connected to the peripheral space 5 by an annular passage 10 which is between the smooth parallel internal surfaces or slightly diverging 11 and 12, respectively of the wall of the flange 2 and of the wall of the flange 3.
  • the annular passage 10 extends radially all around the central orifice 8 or rather, in the embodiment shown, around the inlet orifices 8b vents formed at the end of the discharge pipe 8a.
  • the membrane 4, clamped at its periphery between the two peripheral edges 2a and 3a of the flanges 2 and 3, is produced in annular shape with a circular central passage passing through 13 and extends throughout the annular passage 10.
  • the membrane 4 has a significant thickness in zone 4a where it is clamped between the two peripheral edges 2a and 3a and respectively, an even greater thickness in the zone 4b in the vicinity of the center of the peripheral space 5 where it is connected to the actuating winding 6. From zone 4b, the thickness of the membrane 4 decreases regularly throughout the zone 4c inside from the annular passage 10 where it is subjected to concentric oscillations, up to its border 4d around the circular passage 13.
  • the membrane shown here is made in one piece from an elastomer material resistant to even hot water to function in a heating circulator central. It is obvious that the membrane 4 can be provided, at least at its periphery, with a textile and / or metallic central frame (see FIG. 5) but that the use of a frame, in particular metallic, varies considerably the natural frequency of the membrane which can no longer be tuned to that of the vibrating organ. It can be seen in FIG. 2 that the rim 4d of the central passage 13 surrounds with a large clearance the end 8c of the delivery pipe 8a provided with delivery vents 8b and which has a frustoconical shape, so that the displacement of the rim 4d is limited by the outer surface of the end 8c.
  • the periphery of the membrane 4 may comprise, as shown in FIG. 4, cutouts 14 forming serrations 15 at the periphery 4a of the membrane 4.
  • the cutouts 14 receive the tabs 16 of an annular support 17 of the winding 6.
  • the tabs 16 close on the peripheral rim 4a leaving behind a free space 18 (see FIG. 1) serving as a passage in the annular chamber 5 to allow the fluid to pass from one side to the other of the membrane 4 by passages distributed annually.
  • the serrations 15 are clamped between the edges 2a and 3a of the flanges 2 and 3 and allow the membrane 4 to oscillate freely while being kept at rest substantially in the middle position in the annular passage 10.
  • the upper wall 2 of the ascending passage towards the central orifice 8, the membrane 4 can advantageously have a convex shape towards the central passage 13 so as to come to be housed naturally in the middle position of the annular passage 10, despite its natural tendency to fall due to the action of gravity in the rest position.
  • the lower bowl 5b is deep enough to allow the coil 6 to be vertically flipped (according to FIG. 2) from its middle position shown on the right of FIG. 2.
  • this comprises a bottom drain orifice 22 closed by a removable screw cap 23.
  • the lower bowl 5b in fact constitutes the annular air gap (shown by arrows NS on the right of FIG. 2) of a magnetic circuit 24 made up of two annular parts assembled with high magnetic permeability: an upper annular part 24a with radial section in angle iron and a lower annular part 24b with U-shaped radial section.
  • the excitation of the magnetic circuit is here carried out by an excitation winding 25 supplied with direct current by the electric power supply unit 20 connected to the network by a socket 26, this which removes the magnetic retention of particles when the power supply stops. It is obvious that the excitation winding 25 can be replaced by one or more permanent magnets with high coercive force to take account of the large thickness of the air gap NS.
  • the permanent magnets can be removable to make it possible to remove the ferrous particles retained in the lower bowl 5b at the start of the annular passage 10. It is also possible to replace the actuating coil 6 by a coil of large cross-section in short circuit, such as the turn in short circuit 27, thus forming a Trainr turn.
  • the excitation coil 25 must then be supplied by a alternating voltage whose frequency is that chosen to cause concentric wave trains on the membrane.
  • a magnetic field of air gap NS is created in the horizontal direction, according to FIG. 2, in the air gap constituted by the lower cup 5b, this magnetic field passing through the non-magnetic walls of the lower flange 3.
  • the winding 6 is supplied by the flexible cable 19 with alternating current, preferably at low voltage between 12 and 24 V to take account of the fact that the winding 6 is immersed with the cable 19 in a liquid such as central heating water made ferruginous and which therefore has a high conductivity.
  • the winding 6 is thus subjected to a magnetic force perpendicular to the magnetic field NS of the air gap and directly proportional to the current which flows through its turns, that is to say a substantially sinusoidal force which excites the oscillation in concentric circles of the membrane 4.
  • the oscillations of the membrane 4 in FIG. 2 are shown in a simplified manner, assuming that it comes into its zone 4c in contact with the smooth interior surfaces 11 and 12 at three points constituted here by two points 28a and 28b on the upper surface 11 and of a single point 29 on the lower surface 12, so as to trap a liquid ring 29a in contact with the flange 2 and to propel it towards the central delivery port 8.
  • the progression of the waves from the annular peripheral space 5 towards the central orifice 8 has the effect of transporting the fluid from the supply line 7 to the delivery line 8
  • the propulsion of the fluid is substantially continuous since a wave forms at the entrance to the peripheral space 5 at the moment when a wave disappears at the edge of the central space 9 of the body 1.
  • the deformation of the membrane 4 has the effect of creating four concentric annular chambers 34, 35, 36 and 37 with radial section of general triangular or sinusoidal shape and which are delimited by the membrane 4 and one of the surfaces 11 or 12 of the walls 2 or 3.
  • the spacing of the walls 2 and 3 constituting the annular passage 10 is chosen so that, taking into account the local flexibility of the membrane 4, it is easy to obtain contact circles between the membrane 4 and the surfaces 11 and 12 during vibrations of the membrane.
  • the flow rate of which the pump according to the invention is capable is determined by the volume of the concentric annular chambers 34 to 37 and by the frequency of the beatings of the membrane which is a function of the frequency of the current flowing through the coil 6 but which generally constitutes a frequency tuned to the natural frequency of the membrane at its operating site.
  • the wave progression according to the arrows F1 results from the deformation of the membrane 4 and not from its displacement by relative to the surfaces 11 and 12 of the walls of the annular space 10 because its periphery is kept fixed relative to it. Consequently, the fluid trapped between two successive waves moves with them and the contact between the membrane 4 and the surfaces 11 and 12 of the walls 2 and 3 of the annular space 10 takes place without any friction and therefore without wear of the membrane 4.
  • the contact circles 30 to 33 move by unwinding of the membrane 4 against the walls and there is practically no sliding between the elastomer of the membrane 4 and the surfaces 11 and 12. This rolling contact does not cause , in addition, no reaction liable to impede the flow of the fluid or to lower the efficiency of the fluid propulsion device.
  • the radial section of the membrane 4 decreases in the area 4c, that is to say that the thickness of this membrane 4 decreases regularly from a maximum value E in the zone 4b in the vicinity of its periphery and the center of the annular peripheral space 5, up to a minimum value e at the edge of the central passage 13 (see FIG. 4).
  • the body 1 consists of two flanges 2 and 3 of non-magnetic stainless steel, substantially symmetrical with respect in the median plane of the membrane 4, with the exception of the fluid inlet 7 and fluid delivery fittings 8.
  • the membrane 4 has in its swollen zone 4b, on each side, a ring 40, 41 with a radial section in the shape of an isosceles triangle, the rings 40 and 41 each constituting the air gap connection section of a magnetic circuit with two air gaps.
  • the two air gaps are delimited between, on the one hand, the respective sides 40a and 40b of the isosceles triangle of the section of the ring and, on the other hand, curved faces 42 and 43 forming poles, of a high annular magnetic circuit here consisting of an annular part with a substantially rectangular radial section 44 assembled on an annular part 45 with a U-shaped radial section to surround an excitation winding 46 supplied here with alternating single-alternating current via a rectifier 48.
  • the lower ring 41 cooperates with an identical magnetic circuit, the excitation winding 49 of which is supplied with alternating current of the same frequency as that supplying the winding 46 but of alternating alternation by means of a rectifier 50.
  • the flexible membrane 4 may include an internal reinforcement flexible metal 51 which facilitates the assembly of the two rings 40 and 41 on the bulged area 4b using assembly rivets 52 similar to the rivets 52 shown tees in Figure 1 to ensure the assembly of the coil 6 to the coil 4.
  • the rectifier 48 prohibits the passage of current through the winding 46 in the other direction but the rectifier 50 on the other hand allows the current of the other alternation to be established in the winding 49 and the lower ring 41 is attracted by the curved surfaces forming poles 42a and 43a of the magnetic circuit of the excitation winding 49.
  • the membrane 4 is thus subjected to periodic excitation substantially sinusoidal by the action of the alternating excitation currents of the windings 46 and 49 on the rings 40 and 41.
  • the device shown in FIG. 5 does not include an electric winding immersed in the liquid but generally makes it possible to obtain a yield electric less than that shown in section in Figure 2.
  • the embodiment shown in Figure 5 has the advantage of eliminating the risk of blockage due to the presence of ferrous particles in the pumped liquid.
  • the immersion of the coil 6 in the pumped liquid can present electrical insulation difficulties requiring a low voltage supply but sometimes allows more energetic cooling of the electrical windings to be obtained.
  • the fluid propulsion device according to the invention preferably appears to be applicable for pumping poorly compressible fluids such as liquids, in particular water for central heating circulators operating at low overpressure. It is obvious that the device according to the invention can be applied to convey gases with low overpressure without the compressibility of the gases significantly deforming the waves of the membrane. In the case of application to gases, the displacements of the rolling membrane do not require the presence of a lubricating fluid such as a liquid at the points of contact between the membrane and the walls. In the case where the fluid cannot be discharged, it does not produce untimely heating because the membrane continues to unfold alternately while rolling without discharging fluid. For small pumping devices such as central heating circulators, the electrical energy received on the membrane is transmitted to 90% to the pumped fluid, which ensures an overall efficiency of 70% instead of the 20% commonly accepted for centrifugal air-gap pumps.
  • the membrane can be made of an elastomer insensitive to the fluid conveyed if it is water and which over time resists aging and the distortion stresses which are applied to it by vibrations.
  • the vibrating member such as the coil 6 or the rings 40, 41 can for example be fixed to the membrane 4 by means compact such as an adhesive.
  • the membrane 4 can be actuated by vibrating members other than those described, with internal and / or external action, in particular by simple electromagnets, the mobile part of which constitutes a mobile armature.
  • the mobile part and the membrane can also be associated more intimately, in particular by choosing to make them together a composite material which simultaneously offers the qualities of flexibility necessary for the motor function of the membrane and the magnetic qualities necessary for its control.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
EP90401297A 1989-08-11 1990-05-16 Vorrichtung zur Förderung einer Flüssigkeit Expired - Lifetime EP0412856B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90401297T ATE100179T1 (de) 1989-08-11 1990-05-16 Vorrichtung zur foerderung einer fluessigkeit.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8910808 1989-08-11
FR8910808A FR2650862B1 (fr) 1989-08-11 1989-08-11 Dispositif de propulsion d'un fluide

Publications (2)

Publication Number Publication Date
EP0412856A1 true EP0412856A1 (de) 1991-02-13
EP0412856B1 EP0412856B1 (de) 1994-01-12

Family

ID=9384658

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90401297A Expired - Lifetime EP0412856B1 (de) 1989-08-11 1990-05-16 Vorrichtung zur Förderung einer Flüssigkeit

Country Status (6)

Country Link
EP (1) EP0412856B1 (de)
AT (1) ATE100179T1 (de)
DE (1) DE69005942T2 (de)
ES (1) ES2022059T3 (de)
FR (1) FR2650862B1 (de)
GR (1) GR910300066T1 (de)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2744769A1 (fr) * 1996-02-12 1997-08-14 Drevet Jean Baptiste Circulateur de fluide a membrane vibrante
US6659740B2 (en) 1998-08-11 2003-12-09 Jean-Baptiste Drevet Vibrating membrane fluid circulator
EP1523038A2 (de) * 2003-10-07 2005-04-13 Samsung Electronics Co., Ltd. Ventilfreie Luftzuführungs-Mikroeinrichtung
FR2870897A1 (fr) * 2004-05-26 2005-12-02 Viacor Circulateur de fluide a membrane rigide
WO2005119062A1 (fr) * 2004-05-26 2005-12-15 Viacor Circulateur de fluide a membrane rigide
FR2891321A1 (fr) * 2005-09-26 2007-03-30 Inergy Automotive Systems Res Pompe a membrane vibrante
FR2891322A1 (fr) * 2005-09-26 2007-03-30 Inergy Automotive Systems Res Pompe pour fluide comprenant un stator et une membrane vibrante
FR2893991A1 (fr) * 2005-11-30 2007-06-01 Jean Baptiste Drevet Circulateur a membrane
WO2009000895A2 (fr) * 2007-06-27 2008-12-31 Valeo Systemes Thermiques Pompe de circulation de fluide a court-circuit integre
FR2927131A1 (fr) * 2008-02-01 2009-08-07 Valeo Systemes Thermiques Pompe a membrane
WO2010012889A1 (fr) * 2008-08-01 2010-02-04 Ams R&D Sas Pompe a membrane ondulante perfectionnee
CN101275549B (zh) * 2007-03-26 2011-01-12 北京航空航天大学 一种基于智能材料的高频无阀泵
US9080564B2 (en) 2005-11-30 2015-07-14 Ams R&D Sas Diaphragm circulator
WO2015173280A1 (en) * 2014-05-14 2015-11-19 Saint-Gobain Performance Plastics France Membrane pump
EP3279475A1 (de) * 2016-08-02 2018-02-07 Zodiac Aerotechnics Steuerungsverfahren einer pumpe mit einer undulierenden membran, und steuerungssystem einer pumpe mit undulierender membran
US9968720B2 (en) 2016-04-11 2018-05-15 CorWave SA Implantable pump system having an undulating membrane
US10166319B2 (en) 2016-04-11 2019-01-01 CorWave SA Implantable pump system having a coaxial ventricular cannula
US10188779B1 (en) 2017-11-29 2019-01-29 CorWave SA Implantable pump system having an undulating membrane with improved hydraulic performance
FR3074620A1 (fr) * 2017-12-05 2019-06-07 Ams R&D Sas Moteur electrique
US10799625B2 (en) 2019-03-15 2020-10-13 CorWave SA Systems and methods for controlling an implantable blood pump
JP2021502513A (ja) * 2017-11-10 2021-01-28 コルウェーブ エスアー 波動膜流体循環装置
US10933181B2 (en) 2017-03-31 2021-03-02 CorWave SA Implantable pump system having a rectangular membrane
US11191946B2 (en) 2020-03-06 2021-12-07 CorWave SA Implantable blood pumps comprising a linear bearing
US12017059B2 (en) 2022-11-15 2024-06-25 CorWave SA Implantable heart pump systems including an improved apical connector and/or graft connector
US12251550B2 (en) 2022-04-26 2025-03-18 CorWave SA Blood pumps having an encapsulated actuator
US12257427B2 (en) 2022-11-15 2025-03-25 CorWave SA Implantable heart pump systems including an improved apical connector and/or graft connector

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1644639B1 (de) 2003-06-30 2009-02-11 Nxp B.V. Vorrichtung zur erzeugung lauten mit hilfe einer erzeugten medienströmung
DE102008062759B4 (de) * 2008-12-18 2010-09-30 Hanning Elektro-Werke Gmbh & Co. Kg Pumpe
DE102012202098A1 (de) * 2012-02-13 2013-08-14 Ksb Aktiengesellschaft Hermetische Pumpe

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FR355700A (fr) * 1905-06-28 1905-11-09 Leopold Selme Turbine à membranes ondulantes, reversible comme pompe
FR972512A (fr) * 1947-09-26 1951-01-31 Compresseur ou pompe électromagnétique
US2888877A (en) * 1956-04-19 1959-06-02 Ohio Commw Eng Co Apparatus for pumping
GB2105819A (en) * 1981-07-23 1983-03-30 Selwood Ltd William R Diaphragm clamp
GB2197914A (en) * 1986-11-26 1988-06-02 Matsushita Electric Works Ltd Electromagnetic air pump

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR355700A (fr) * 1905-06-28 1905-11-09 Leopold Selme Turbine à membranes ondulantes, reversible comme pompe
FR972512A (fr) * 1947-09-26 1951-01-31 Compresseur ou pompe électromagnétique
US2888877A (en) * 1956-04-19 1959-06-02 Ohio Commw Eng Co Apparatus for pumping
GB2105819A (en) * 1981-07-23 1983-03-30 Selwood Ltd William R Diaphragm clamp
GB2197914A (en) * 1986-11-26 1988-06-02 Matsushita Electric Works Ltd Electromagnetic air pump

Cited By (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2744769A1 (fr) * 1996-02-12 1997-08-14 Drevet Jean Baptiste Circulateur de fluide a membrane vibrante
WO1997029282A1 (fr) * 1996-02-12 1997-08-14 Drevet Jean Baptiste Circulateur de fluide a membrane vibrante
US6361284B2 (en) 1996-02-12 2002-03-26 Jean-Baptiste Drevet Vibrating membrane fluid circulator
US6659740B2 (en) 1998-08-11 2003-12-09 Jean-Baptiste Drevet Vibrating membrane fluid circulator
EP1523038A2 (de) * 2003-10-07 2005-04-13 Samsung Electronics Co., Ltd. Ventilfreie Luftzuführungs-Mikroeinrichtung
EP1523038A3 (de) * 2003-10-07 2006-09-13 Samsung Electronics Co., Ltd. Ventilfreie Luftzuführungs-Mikroeinrichtung
US7841843B2 (en) 2003-10-07 2010-11-30 Samsung Electronics Co., Ltd. Valveless micro air delivery device
FR2870897A1 (fr) * 2004-05-26 2005-12-02 Viacor Circulateur de fluide a membrane rigide
WO2005119062A1 (fr) * 2004-05-26 2005-12-15 Viacor Circulateur de fluide a membrane rigide
WO2007039501A1 (en) * 2005-09-26 2007-04-12 Inergy Automotive Systems Research (Société Anonyme) Vibrating membrane pump
WO2007039510A1 (en) * 2005-09-26 2007-04-12 Inergy Automotive Systems Research (Société Anonyme) Fluid pump comprising a stator and a vibrating membrane
FR2891322A1 (fr) * 2005-09-26 2007-03-30 Inergy Automotive Systems Res Pompe pour fluide comprenant un stator et une membrane vibrante
FR2891321A1 (fr) * 2005-09-26 2007-03-30 Inergy Automotive Systems Res Pompe a membrane vibrante
FR2893991A1 (fr) * 2005-11-30 2007-06-01 Jean Baptiste Drevet Circulateur a membrane
WO2007063206A1 (fr) * 2005-11-30 2007-06-07 Sam Amstar Circulateur a membrane
US9080564B2 (en) 2005-11-30 2015-07-14 Ams R&D Sas Diaphragm circulator
CN101275549B (zh) * 2007-03-26 2011-01-12 北京航空航天大学 一种基于智能材料的高频无阀泵
WO2009000895A2 (fr) * 2007-06-27 2008-12-31 Valeo Systemes Thermiques Pompe de circulation de fluide a court-circuit integre
FR2918128A1 (fr) * 2007-06-27 2009-01-02 Valeo Systemes Thermiques Pompe de circulation de fluide a court-circuit integre.
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FR2927131A1 (fr) * 2008-02-01 2009-08-07 Valeo Systemes Thermiques Pompe a membrane
CN102112744B (zh) * 2008-08-01 2014-11-12 Amsr&D联合股份有限公司 改进的皱形隔膜泵
CN102112744A (zh) * 2008-08-01 2011-06-29 Amsr&D联合股份有限公司 改进的皱形隔膜泵
JP2011529549A (ja) * 2008-08-01 2011-12-08 アーエムエス エールエデー ソシエテ パ アクシオンス シンプリフィエ 改良された皺付きダイアフラムポンプ
US8834136B2 (en) 2008-08-01 2014-09-16 Ams R&D Sas Crinkle diaphragm pump
FR2934651A1 (fr) * 2008-08-01 2010-02-05 Ams R & D Sas Pompe a membrane ondulante perfectionnee.
WO2010012889A1 (fr) * 2008-08-01 2010-02-04 Ams R&D Sas Pompe a membrane ondulante perfectionnee
WO2015173280A1 (en) * 2014-05-14 2015-11-19 Saint-Gobain Performance Plastics France Membrane pump
FR3021074A1 (fr) * 2014-05-14 2015-11-20 Saint Gobain Performance Plast Pompe a membrane
CN106489026A (zh) * 2014-05-14 2017-03-08 法国圣戈班性能塑料公司 隔膜泵
US12005245B2 (en) 2016-04-11 2024-06-11 CorWave SA Implantable pump system having an undulating membrane
US9968720B2 (en) 2016-04-11 2018-05-15 CorWave SA Implantable pump system having an undulating membrane
US10166319B2 (en) 2016-04-11 2019-01-01 CorWave SA Implantable pump system having a coaxial ventricular cannula
US11097091B2 (en) 2016-04-11 2021-08-24 CorWave SA Implantable pump system having a coaxial ventricular cannula
US11712554B2 (en) 2016-04-11 2023-08-01 CorWave SA Implantable pump system having a coaxial ventricular cannula
US10398821B2 (en) 2016-04-11 2019-09-03 CorWave SA Implantable pump system having an undulating membrane
US11298522B2 (en) 2016-04-11 2022-04-12 CorWave SA Implantable pump system having an undulating membrane
FR3054861A1 (fr) * 2016-08-02 2018-02-09 Zodiac Aerotechnics Procede de pilotage d'une pompe a membrane ondulante, et systeme pilote de pompe a membrane ondulante
EP3279475A1 (de) * 2016-08-02 2018-02-07 Zodiac Aerotechnics Steuerungsverfahren einer pumpe mit einer undulierenden membran, und steuerungssystem einer pumpe mit undulierender membran
US11623077B2 (en) 2017-03-31 2023-04-11 CorWave SA Implantable pump system having a rectangular membrane
US10933181B2 (en) 2017-03-31 2021-03-02 CorWave SA Implantable pump system having a rectangular membrane
JP2021502513A (ja) * 2017-11-10 2021-01-28 コルウェーブ エスアー 波動膜流体循環装置
US11512689B2 (en) 2017-11-10 2022-11-29 CorWave SA Undulating-membrane fluid circulator
US12214182B2 (en) 2017-11-29 2025-02-04 CorWave SA Implantable pump system having an undulating membrane with improved hydraulic performance
US10188779B1 (en) 2017-11-29 2019-01-29 CorWave SA Implantable pump system having an undulating membrane with improved hydraulic performance
US11446480B2 (en) 2017-11-29 2022-09-20 CorWave SA Implantable pump system having an undulating membrane with improved hydraulic performance
WO2019110694A1 (fr) * 2017-12-05 2019-06-13 Ams R&D Sas Moteur electrique
FR3074620A1 (fr) * 2017-12-05 2019-06-07 Ams R&D Sas Moteur electrique
US11791702B2 (en) 2017-12-05 2023-10-17 Ams R&D Sas Electric motor with stator and mobile armature with suspending leaf springs which prevent movement in transverse direction and is in airgap plane that is perpendicular to first loop plane
US10799625B2 (en) 2019-03-15 2020-10-13 CorWave SA Systems and methods for controlling an implantable blood pump
US11191946B2 (en) 2020-03-06 2021-12-07 CorWave SA Implantable blood pumps comprising a linear bearing
US12251550B2 (en) 2022-04-26 2025-03-18 CorWave SA Blood pumps having an encapsulated actuator
US12017059B2 (en) 2022-11-15 2024-06-25 CorWave SA Implantable heart pump systems including an improved apical connector and/or graft connector
US12257427B2 (en) 2022-11-15 2025-03-25 CorWave SA Implantable heart pump systems including an improved apical connector and/or graft connector

Also Published As

Publication number Publication date
EP0412856B1 (de) 1994-01-12
FR2650862A1 (fr) 1991-02-15
ATE100179T1 (de) 1994-01-15
ES2022059A4 (es) 1991-12-01
DE69005942D1 (de) 1994-02-24
FR2650862B1 (fr) 1991-11-08
GR910300066T1 (en) 1991-11-15
DE69005942T2 (de) 1994-06-01
ES2022059T3 (es) 1994-05-16

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