WO2010012887A1 - Pompe a membrane ondulante de rendement ameliore - Google Patents
Pompe a membrane ondulante de rendement ameliore Download PDFInfo
- Publication number
- WO2010012887A1 WO2010012887A1 PCT/FR2009/000915 FR2009000915W WO2010012887A1 WO 2010012887 A1 WO2010012887 A1 WO 2010012887A1 FR 2009000915 W FR2009000915 W FR 2009000915W WO 2010012887 A1 WO2010012887 A1 WO 2010012887A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pump
- actuator
- membrane
- diaphragm
- support
- Prior art date
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
- 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
Definitions
- the present invention relates to an undulating diaphragm pump with improved efficiency.
- Document FR2744769 discloses, for example, undulating diaphragm pumps mounted for undulating between two flanges under the action of at least one linear electromagnetic actuator in order to transfer fluid from an inlet of the pump to an outlet of the pump between the membrane and the flanges.
- 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.
- the actuator (s) are advantageously chosen from the type with moving magnets or else from the reluctant type.
- 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.
- 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 pump head, limits the possible operating frequency of the pump. the actuator, and leads to noises and vibrations that can be troublesome.
- the subject of the invention is an undulating diaphragm pump with improved efficiency, which does not have the abovementioned disadvantages.
- an undulating diaphragm pump mounted on a support 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.
- 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.
- 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.
- the actuator makes it possible to increase the frequency of operation, to reduce the mechanical losses related to friction and viscous friction.
- 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.
- 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.
- FIG. 1 is a schematic sectional view of an exemplary embodiment of a pump according to a first implementation of the invention
- FIG. 2 is a sectional view of a first exemplary embodiment of a pump according to a second principle of implementation of the invention
- FIG. 2a is a sectional view of a second embodiment of a pump according to the second embodiment of the invention.
- FIG. 3 is a schematic sectional view of a pump according to a third embodiment of the invention.
- FIG. 4 is a schematic sectional view of a pump according to a fourth principle of implementation of the invention.
- the illustrated pump comprises two generally discoidal flanges 1 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.
- 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.
- 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.
- the mobile mass 12 carries permanent magnets.
- L is the length of the lever (counted parallel to the mean plane of the membrane) and the distance, counted parallel to L, between the fixed end of the lever 6 and the coupling point of the mobile mass 12 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.
- FIG. 2 illustrates an example of practical implementation of this principle.
- 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. 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.
- 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.
- 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.
- the spring 13 here consists of an elastically deformable bent blade.
- the pump comprises adaptation means consisting of a pneumatic or hydraulic stroke adapter 30.
- the mobile mass 12 here affects an annular shape and slides alternately.
- the travel adapter 30 comprises a membrane A and a membrane B which define> 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.
- 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.
- 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.
- the surface of the membrane A is greater than the surface of the membrane B.
- 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.
- the invention applies to any type of actuator and in particular the linear or rotary actuators, with angular displacement ...
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/056,585 US8714944B2 (en) | 2008-08-01 | 2009-07-23 | Diaphragm pump with a crinkle diaphragm of improved efficiency |
CA2767332A CA2767332C (fr) | 2008-08-01 | 2009-07-23 | Pompe a membrane ondulante de rendement ameliore |
DK09802554.7T DK2313655T3 (en) | 2008-08-01 | 2009-07-23 | Wave diaphragm pump with improved efficiency |
JP2011520544A JP5291193B2 (ja) | 2008-08-01 | 2009-07-23 | 効率を改善した皺付きダイアフラムを備えたダイアフラムポンプ |
ES09802554.7T ES2632173T3 (es) | 2008-08-01 | 2009-07-23 | Bomba de membrana ondulante de rendimiento mejorado |
CN200980130970.0A CN102112743B (zh) | 2008-08-01 | 2009-07-23 | 效率提高的具有皱形隔膜的隔膜泵 |
EP09802554.7A EP2313655B1 (fr) | 2008-08-01 | 2009-07-23 | Pompe à membrane ondulante de rendement amelioré |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0804390 | 2008-08-01 | ||
FR0804390A FR2934652B1 (fr) | 2008-08-01 | 2008-08-01 | Pompe a membrane ondulante de rendement ameliore. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010012887A1 true WO2010012887A1 (fr) | 2010-02-04 |
Family
ID=40383753
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2009/000915 WO2010012887A1 (fr) | 2008-08-01 | 2009-07-23 | Pompe a membrane ondulante de rendement ameliore |
Country Status (9)
Country | Link |
---|---|
US (1) | US8714944B2 (fr) |
EP (1) | EP2313655B1 (fr) |
JP (1) | JP5291193B2 (fr) |
CN (1) | CN102112743B (fr) |
CA (1) | CA2767332C (fr) |
DK (1) | DK2313655T3 (fr) |
ES (1) | ES2632173T3 (fr) |
FR (1) | FR2934652B1 (fr) |
WO (1) | WO2010012887A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3026091A1 (fr) * | 2014-09-24 | 2016-03-25 | Zodiac Aerotechnics | Procede et systeme de circulation de carburant dans un aeronef |
Families Citing this family (21)
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 (fr) | 2006-09-28 | 2016-10-11 | Smith & Nephew, Inc. | Systeme portatif pour therapie de blessures |
CN101868203B (zh) | 2007-11-21 | 2014-10-22 | 史密夫及内修公开有限公司 | 伤口包敷物 |
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 (ja) | 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 | デューティサイクル閾値の動的決定に基づく減圧療法システムの動作制御 |
US9427505B2 (en) | 2012-05-15 | 2016-08-30 | Smith & Nephew Plc | Negative pressure wound therapy apparatus |
CN104214079B (zh) * | 2013-06-05 | 2018-04-27 | 北京谊安医疗系统股份有限公司 | 空气压缩机 |
FR3016811A1 (fr) * | 2014-01-24 | 2015-07-31 | Saint Gobain Performance Plast | Recipient-melangeur |
WO2016103032A1 (fr) | 2014-12-22 | 2016-06-30 | Smith & Nephew Plc | Appareil et procédés de thérapie par pression négative |
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 (fr) | 2017-03-31 | 2020-02-05 | Corwave SA | Système de pompe implantable munie d'une membrane rectangulaire |
FR3073578B1 (fr) * | 2017-11-10 | 2019-12-13 | Corwave | Circulateur de fluide a membrane ondulante |
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 (zh) | 2019-03-15 | 2021-12-14 | 科瓦韦公司 | 用于控制可植入血泵的系统及方法 |
EP4114504A1 (fr) | 2020-03-06 | 2023-01-11 | CorWave SA | Pompes à sang implantables comprenant un roulement linéaire |
FR3124658A1 (fr) * | 2021-06-28 | 2022-12-30 | Finx | Dispositif générateur de flux fluidique |
WO2023209547A1 (fr) | 2022-04-26 | 2023-11-02 | CorWave SA | Pompes à sang équipées d'un actionneur encapsulé |
Citations (5)
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 |
US3187990A (en) * | 1959-12-16 | 1965-06-08 | Chausson Usines Sa | Electromagnetically maintained oscillating movement compressor |
WO1997029282A1 (fr) * | 1996-02-12 | 1997-08-14 | Drevet Jean Baptiste | Circulateur de fluide a membrane vibrante |
US20040086398A1 (en) * | 2002-10-31 | 2004-05-06 | Wanner Engineering, Inc. | Diaphragm pump |
FR2861910A1 (fr) * | 2003-10-29 | 2005-05-06 | Jean Baptiste Drevet | Machine electromagnetique a membrane deformable et moteur electromagnetique adapte a une telle machine |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0936355A3 (fr) * | 1998-02-10 | 2001-04-18 | Ohken Seiko Co., Ltd. | Pompe à piston |
FR2893991B1 (fr) * | 2005-11-30 | 2013-10-11 | Jean Baptiste Drevet | Circulateur a membrane |
-
2008
- 2008-08-01 FR FR0804390A patent/FR2934652B1/fr active Active
-
2009
- 2009-07-23 JP JP2011520544A patent/JP5291193B2/ja not_active Expired - Fee Related
- 2009-07-23 CN CN200980130970.0A patent/CN102112743B/zh not_active Expired - Fee Related
- 2009-07-23 EP EP09802554.7A patent/EP2313655B1/fr active Active
- 2009-07-23 DK DK09802554.7T patent/DK2313655T3/en active
- 2009-07-23 ES ES09802554.7T patent/ES2632173T3/es active Active
- 2009-07-23 WO PCT/FR2009/000915 patent/WO2010012887A1/fr active Application Filing
- 2009-07-23 US US13/056,585 patent/US8714944B2/en active Active
- 2009-07-23 CA CA2767332A patent/CA2767332C/fr active Active
Patent Citations (5)
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 |
US3187990A (en) * | 1959-12-16 | 1965-06-08 | Chausson Usines Sa | Electromagnetically maintained oscillating movement compressor |
WO1997029282A1 (fr) * | 1996-02-12 | 1997-08-14 | Drevet Jean Baptiste | Circulateur de fluide a membrane vibrante |
US20040086398A1 (en) * | 2002-10-31 | 2004-05-06 | Wanner Engineering, Inc. | Diaphragm pump |
FR2861910A1 (fr) * | 2003-10-29 | 2005-05-06 | Jean Baptiste Drevet | Machine electromagnetique a membrane deformable et moteur electromagnetique adapte a une telle machine |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3026091A1 (fr) * | 2014-09-24 | 2016-03-25 | Zodiac Aerotechnics | Procede et systeme de circulation de carburant dans un aeronef |
WO2016046485A1 (fr) * | 2014-09-24 | 2016-03-31 | Zodiac Aerotechnics | Procédé et système de circulation de carburant dans un aéronef |
Also Published As
Publication number | Publication date |
---|---|
US8714944B2 (en) | 2014-05-06 |
JP5291193B2 (ja) | 2013-09-18 |
CA2767332A1 (fr) | 2010-02-04 |
FR2934652B1 (fr) | 2013-01-11 |
EP2313655A1 (fr) | 2011-04-27 |
US20110176946A1 (en) | 2011-07-21 |
DK2313655T3 (en) | 2017-07-31 |
EP2313655B1 (fr) | 2017-04-12 |
CA2767332C (fr) | 2014-07-08 |
CN102112743A (zh) | 2011-06-29 |
CN102112743B (zh) | 2015-05-13 |
ES2632173T3 (es) | 2017-09-11 |
FR2934652A1 (fr) | 2010-02-05 |
JP2011529548A (ja) | 2011-12-08 |
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