EP0279931B1 - Pompe à membrane - Google Patents

Pompe à membrane Download PDF

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Publication number
EP0279931B1
EP0279931B1 EP87118372A EP87118372A EP0279931B1 EP 0279931 B1 EP0279931 B1 EP 0279931B1 EP 87118372 A EP87118372 A EP 87118372A EP 87118372 A EP87118372 A EP 87118372A EP 0279931 B1 EP0279931 B1 EP 0279931B1
Authority
EP
European Patent Office
Prior art keywords
diaphragm
chamber
diaphragm pump
fixture
pump fixture
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.)
Expired - Lifetime
Application number
EP87118372A
Other languages
German (de)
English (en)
Other versions
EP0279931A2 (fr
EP0279931A3 (en
Inventor
Martin Dr.-Ing. Maier
Heinz Dipl.-Ing. Sayer (Fh)
Gerhard Dipl.-Ing. Gebauer (Fh)
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.)
Wagner International AG
J Wagner GmbH
Original Assignee
Wagner International AG
J Wagner GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wagner International AG, J Wagner GmbH filed Critical Wagner International AG
Publication of EP0279931A2 publication Critical patent/EP0279931A2/fr
Publication of EP0279931A3 publication Critical patent/EP0279931A3/de
Application granted granted Critical
Publication of EP0279931B1 publication Critical patent/EP0279931B1/fr
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
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/06—Pumps having fluid drive
    • F04B43/067—Pumps having fluid drive the fluid being actuated directly by a piston

Definitions

  • the invention relates to a diaphragm pumping device with a first chamber for the liquid to be pumped, which can be supplied via an inlet valve and can be removed via an outlet valve, a second chamber for drive liquid, which is separated from the first chamber by a movable membrane, and with an oscillating drive piston which alternately pressurizes and relaxes the drive fluid and with a storage chamber for the drive fluid which is connected to the second chamber via a return line with a pressure relief valve inserted therein for draining the drive fluid when pumping liquid is throttled into the storage chamber and via a refill line Refill valve for supplementing drive fluid is connected when removed again.
  • the object of the invention is therefore to improve the pumping device of the type mentioned in such a way that its respective delivery volume can be detected and changed with simple means, but extremely precisely, so that these pumps can also be used as metering pumps with high adjustment constancy and more precisely Reproducibility are to be used.
  • the construction effort with which this is to be achieved should be kept low, nevertheless a volume measurement should be possible with each stroke of the membrane and an adjustment to an adjustable specification should be possible in the short term depending on the determined value.
  • a signal transmitter is used in the area adjustable by the drive fluid, and in the housing receiving the membrane, an associated signal sensor is arranged at the same level, the signals of which are located outside the membrane pump device can be evaluated and monitored.
  • the signal transmitter by means of a permanent magnet arranged in or on the membrane and to design the signal sensor as a magnetoresistive sensor.
  • the signal transmitter in the thickening preferably on the side facing the signal pickup and the signal pickup in the housing delimiting the second chamber of the pump device, for example by inserting it into a bore machined therein.
  • the pressure relief valve used in the return line can be provided in a simple manner with an actuator or an actuator which is connected to the controller via a control line and depending on a target / actual value comparison with this is adjustable.
  • a diaphragm pump device is designed according to the invention, it is possible with simple means to measure the respective adjustment path of the diaphragm and thus to determine the delivery volume, so that it can be adapted to a predetermined target value in the short term.
  • a signal transmitter is arranged in the membrane and a signal sensor cooperating with it in the housing, the recorded signals are easy to evaluate and monitor, and the delivery volume of the membrane pump device is therefore known at all times. Corresponding changes can also be made in order to keep this constant or to increase or reduce it.
  • the proposed pump device is thus in this way, high reproducibility and exact delivery consistency over a long period of time can also be achieved, particularly as a controllable metering pump. The mostly inevitable different bulges of the membrane can thus be compensated for in the short term with simple means.
  • the membrane pump device designated 1 serves to convey a liquid accumulated in a storage container 7 to a consumer or a filling station, not shown, and essentially consists of a movable membrane 4 clamped between two housings 2 and 3, which are firmly clamped together by screws 19. In this way, a first chamber 5 for the liquid to be conveyed and a second chamber 6 separated from it by the membrane are formed, which is filled with drive liquid.
  • a piston 13 is provided, which is oscillatingly actuated by a swash plate 14, so that the membrane 4 is alternately pressurized and relaxed by the drive fluid located in the second chamber 6.
  • the liquid to be conveyed is sucked out of the reservoir 7 into the first chamber 5 via a suction line 8 and an inlet valve 9 inserted therein.
  • the suctioned liquid is conveyed via an outlet valve 11, which is closed during the suction stroke, into a pressure line 10 leading to the consumer.
  • the second chamber 6 receiving the drive fluid is connected to a storage chamber 12 via a suction line 15 and an inlet valve 16 arranged therein, which can be designed in different ways.
  • the second chamber is connected to the storage chamber 12 via a return line 17 and a pressure relief valve 18 inserted therein.
  • the piston 13 thus draws drive fluid from the storage chamber 12 into the second chamber 6 during its return stroke and acts as a hydraulic linkage on the membrane 4 during its forward stroke, which is thus set in synchronous oscillating movements.
  • the curvature of the membrane 4 in the first chamber 5 is determined on the one hand by the resistance in the pressure line 10 and on the other hand by the opening pressure of the pressure relief valve 18, by means of which, depending on the preload, with each stroke movement of the piston 13 more or less drive fluid from the second chamber 6 into the Storage chamber 12 is discharged. The more drive fluid flows out of the second chamber 6, the less the bulge of the membrane 4 into the first chamber 5, with constant resistance in the pressure line 10.
  • a signal transmitter 31 is arranged in the thickened portion 23 and a signal pick-up 32 which interacts with it in a bore 24 is arranged in the housing 3.
  • the signal generator 31 is in this case a permanent magnet and the signal sensor 32 formed as a magnetoresistive sensor, the respective distance of the pulse generator 31 from the pulse pickup 32 and thus the displacement of the membrane 4 can thus be continuously determined with the aid of the magnetic lines of force without difficulty and accordingly the delivery volume of the membrane pumping device 1 can be determined.
  • a controller 34 is provided which is arranged outside the membrane pump device 1 and is connected to the signal sensor 32 via a control line 33.
  • the measured values determined can be read on an analog or digital display 35 of the controller 34.
  • the controller 34 is connected to a servomotor 36, which is assigned to the pressure relief valve 18. Since the controller 34 has an adjustable target value range, the respective actual values supplied to it via the control line 33 can be compared with an adjustable target value and, in the event of a deviation, the pressure limiting valve 18 can be adjusted accordingly and thus the amount of gas from the second chamber 6 in the supply chamber 12 flowing drive fluid can be changed so that in this way the delivery volume of the diaphragm pumping device 1 can be kept constant over a long period of time even with changing resistances in the pressure line 10 and can be adapted to the respective circumstances.

Landscapes

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

Claims (9)

  1. Pompe à membrane renfermant une première chambre destinée au liquide à refouler qui atteint la pompe par une vanne d'arrivée (9) et qui la quitte par une vanne de sortie (11), une deuxième chambre (6) destinée au liquide d'entraînement et séparée de la première par une membrane mobile (4) ainsi qu'un piston d'entraînement (13) dont le mouvement de va et vient met sous pression et décharge alternativement le liquide d'entraînement, et une chambre de réserve (12) pour le liquide d'entraînement communiquant avec la deuxième chambre premièrement par une conduite de retour (17) à laquelle est incorporé un limiteur de pression qui permet d'évacuer le liquide d'entraînement vers la chambre de réserve (12) afin de réduire le refoulement du liquide, et deuxièmement par une conduite de remplissage (15) avec vanne de remplissage (16) permettant de refaire le plein,
    se caractérisant par le fait que
    pour la mesure du bombement respectif de la membrane (4), celle-ci renferme dans l'espace (22, 23) réglable à l'aide du liquide d'entraînement, un transmetteur de signal (31), tandis que le boîtier (2, 3) renfermant la membrane (4) comporte un capteur de signal (32) qui lui est attribué et disposé autant que possible au même niveau que le transmetteur et en face de celui-ci et dont les signaux se laissent évaluer et surveiller en dehors de la pompe à membrane (1).
  2. Pompe à membrane d'après la revendication 1,
    se caractérisant par le fait que
    le transmetteur de signal (31) est formé par un aimant permanent disposé dans ou sur la membrane (4).
  3. Pompe à membrane d'après la revendication 1 ou 2,
    se caractérisant par le fait que
    le capteur de signal (32) est formé par un capteur magnétorésistif.
  4. Pompe à membrane d'après une ou plusieurs des revendications 1 à 3,
    se caractérisant par le fait que
    sur une membrane (4) munie d'un épaississement (23), le transmetteur de signal (31) est logé dans l'épaississement (23), de préférence sur la face opposée au capteur de signal (32).
  5. Pompe à membrane d'après une ou plusieurs des revendications 1 à 4,
    se caractérisant par le fait que
    le capteur de signal (32) est disposé dans le boîtier (3) limitant la deuxième chambre (6) de la pompe (1), par exemple dans un alésage (24) qui y est pratiqué.
  6. Pompe à membrane d'après une ou plusieurs des revendications 1 à 5,
    se caractérisant par le fait que
    pour l'évaluation des signaux, le capteur de signal (32) est lié par une ligne de commande (33) à un régulateur (34).
  7. Pompe à membrane d'après la revendication 6,
    se caractérisant par le fait que
    le régulateur (34) possède une plage de réglage nominale.
  8. Pompe à membrane d'après la revendication 6 ou 7,
    se caractérisant par le fait que
    le régulateur (34) est équipé d'un affichage digital ou analogique (35) des valeurs mesurées.
  9. Pompe à membrane d'après une ou plusieurs des revendications 6 à 8,
    se caractérisant par le fait que
    pour la régulation, de préférence la stabilisation du débit de la pompe à membrane (1), le limiteur de pression (18) monté dans la conduite de retour (17) est muni d'un moteur de réglage (36) ou d'un élément de réglage qui est lié au régulateur (34) par une ligne de commande (37) et qui est actionné par le régulateur en fonction d'une comparaison des valeurs nominale/effective.
EP87118372A 1987-02-27 1987-12-11 Pompe à membrane Expired - Lifetime EP0279931B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873706338 DE3706338A1 (de) 1987-02-27 1987-02-27 Membranpumpvorrichtung
DE3706338 1987-02-27

Publications (3)

Publication Number Publication Date
EP0279931A2 EP0279931A2 (fr) 1988-08-31
EP0279931A3 EP0279931A3 (en) 1989-06-28
EP0279931B1 true EP0279931B1 (fr) 1992-03-11

Family

ID=6321902

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87118372A Expired - Lifetime EP0279931B1 (fr) 1987-02-27 1987-12-11 Pompe à membrane

Country Status (4)

Country Link
US (1) US4828464A (fr)
EP (1) EP0279931B1 (fr)
JP (1) JPS63230977A (fr)
DE (2) DE3706338A1 (fr)

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DE8801660U1 (de) * 1988-02-10 1988-03-31 Henkel, Wolfgang Eberhard, 6832 Hockenheim Membrandehnungsmeßgerät für Kugelmembranpumpen
DE3943585C2 (de) * 1989-08-31 1995-04-27 Wagner Gmbh J Membranpumpe
DE3928950A1 (de) * 1989-08-31 1991-03-14 Wagner Gmbh J Membranpumpe
US5056036A (en) * 1989-10-20 1991-10-08 Pulsafeeder, Inc. Computer controlled metering pump
US5145331A (en) * 1991-07-29 1992-09-08 J. Wagner Gmbh Diaphragm pump
US5249932A (en) * 1991-10-07 1993-10-05 Erik Van Bork Apparatus for controlling diaphragm extension in a diaphragm metering pump
JPH062664A (ja) * 1992-06-22 1994-01-11 Nippon Soken Inc ダイアフラム式ポンプ
US5378122A (en) 1993-02-16 1995-01-03 Wilden Pump & Engineering Co. Air driven diaphragm pump
DE4327969C2 (de) * 1993-08-19 1997-07-03 Ott Kg Lewa Hydraulisch angetriebene Membranpumpe
DE4327970C2 (de) * 1993-08-19 1997-07-03 Ott Kg Lewa Hydraulisch angetriebene Membranpumpe mit mechanischer Membranhubbegrenzung
US5641270A (en) * 1995-07-31 1997-06-24 Waters Investments Limited Durable high-precision magnetostrictive pump
DE29520876U1 (de) * 1995-12-28 1996-04-11 ABEL GmbH & Co Handels- und Verwaltungsgesellschaft, 21514 Büchen Kolbenmembranpumpe
DE19738844A1 (de) * 1997-09-05 1999-04-22 Dosier Und Prozestechnik Salzw Verfahren zur kontinuierlichen elektronischen Überwachung aller Funktionen innerhalb der Dosierpumpe
DE19742632A1 (de) * 1997-09-26 1999-04-08 Fresenius Medical Care De Gmbh Pump- und Dosiervorrichtung
US6099269A (en) * 1997-10-06 2000-08-08 Fin Robur Absorption refrigeration system having a diaphragm pump and a hydraulic piston pump
DE19826610A1 (de) * 1998-06-16 1999-12-23 Bran & Luebbe Membranpumpe und Vorrichtung zur Steuerung derselben
DE19840365A1 (de) * 1998-09-04 2000-03-09 Bran & Luebbe Membrankolbenpumpe
US6276907B1 (en) * 1999-08-12 2001-08-21 Wagner Spray Tech Corporation Hydraulically driven diaphragm pump
US6350110B1 (en) * 2000-03-31 2002-02-26 B&G International Multiport metering pump
FR2826068B1 (fr) * 2001-06-19 2004-02-13 Siemens Automotive Hydraulics Dispositif de regulation de debit pour pompe transfert a carburant
DE10138674B4 (de) * 2001-08-07 2011-08-11 Kleibrink, Horst, 45473 Verfahren zur Vermeidung von Havariefällen von Membrankompressoren
GB2378734A (en) * 2001-08-14 2003-02-19 Carmeli Adahan Disposable pump with detachable motor
DE10209758B4 (de) * 2002-03-05 2004-11-18 Horst Kleibrink Verfahren zur Optimierung der Gasströmung innerhalb eines Membrankompressors
US20080296814A1 (en) 2002-06-25 2008-12-04 Joseph Franklin Gas spring with travel control
US10941828B2 (en) 2002-06-25 2021-03-09 Fox Factory, Inc. Gas spring with travel control
US8464850B2 (en) 2006-11-16 2013-06-18 Fox Factory, Inc. Gas spring curve control in an adjustable-volume gas-pressurized device
US7703585B2 (en) 2002-06-25 2010-04-27 Fox Factory, Inc. Integrated and self-contained suspension assembly having an on-the-fly adjustable air spring
US7963509B2 (en) 2007-01-31 2011-06-21 Fox Factory, Inc. Travel control for a gas spring and gas spring having very short travel modes
JP4587098B2 (ja) * 2004-07-21 2010-11-24 Ｓｍｃ株式会社 ポンプ装置
KR101197406B1 (ko) * 2005-07-28 2012-11-05 그라코 미네소타 인크. 전자식으로 모니터되는 에어 밸브 및 피스톤을 구비한 왕복펌프
US9677549B2 (en) 2005-07-28 2017-06-13 Graco Minnesota Inc. Reciprocating pump with electronically monitored air valve and piston
JP5315550B2 (ja) * 2009-06-10 2013-10-16 株式会社イワキ 二連往復動ポンプ
US8591200B2 (en) * 2009-11-23 2013-11-26 National Oil Well Varco, L.P. Hydraulically controlled reciprocating pump system
US9714650B2 (en) 2013-06-11 2017-07-25 Matthew G. Morris, Jr. Pumping system
US9709050B2 (en) * 2014-01-07 2017-07-18 Rocky Research Solution pump system
US9605664B2 (en) * 2014-01-07 2017-03-28 Ingersoll-Rand Company Pneumatic piston pump metering and dispense control
US9855186B2 (en) 2014-05-14 2018-01-02 Aytu Women's Health, Llc Devices and methods for promoting female sexual wellness and satisfaction
DE102014222743A1 (de) * 2014-11-06 2016-05-12 Continental Automotive Gmbh Pumpeneinheit für Reduktionsmittel einer Abgasreinigungsanlage
CN104895714A (zh) * 2015-03-12 2015-09-09 肖光生 汽油缸内直喷
KR101817215B1 (ko) * 2016-03-16 2018-01-11 세메스 주식회사 펌프 및 액 공급 장치
US20180372083A1 (en) * 2017-06-22 2018-12-27 Wanner Engineering, Inc. Hydraulic diaphragm control
US11950677B2 (en) 2019-02-28 2024-04-09 L'oreal Devices and methods for electrostatic application of cosmetics
DE102019109283A1 (de) * 2019-04-09 2020-10-15 Prominent Gmbh Membranbruchüberwachung
US12060875B2 (en) * 2020-11-09 2024-08-13 Pdc Machines Inc. Hydraulic drive for diaphragm compressor

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DE2104783B2 (de) * 1970-12-21 1978-05-18 Josef 7990 Friedrichshafen Wagner Membranpumpvorrichtung, insbesondere für eine Farbspritzpistole

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Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
DE2104783B2 (de) * 1970-12-21 1978-05-18 Josef 7990 Friedrichshafen Wagner Membranpumpvorrichtung, insbesondere für eine Farbspritzpistole
DD112601A5 (fr) * 1973-11-16 1975-04-20

Also Published As

Publication number Publication date
DE3706338A1 (de) 1988-09-08
US4828464A (en) 1989-05-09
EP0279931A2 (fr) 1988-08-31
JPS63230977A (ja) 1988-09-27
EP0279931A3 (en) 1989-06-28
DE3777390D1 (de) 1992-04-16

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