EP0283026A3 - Method and device for starting an hydraulic membrane pump against a load - Google Patents

Method and device for starting an hydraulic membrane pump against a load Download PDF

Info

Publication number
EP0283026A3
EP0283026A3 EP88104287A EP88104287A EP0283026A3 EP 0283026 A3 EP0283026 A3 EP 0283026A3 EP 88104287 A EP88104287 A EP 88104287A EP 88104287 A EP88104287 A EP 88104287A EP 0283026 A3 EP0283026 A3 EP 0283026A3
Authority
EP
European Patent Office
Prior art keywords
pump
chamber
pressure chamber
pressure
hydraulic fluid
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
EP88104287A
Other languages
German (de)
Other versions
EP0283026B1 (en
EP0283026A2 (en
Inventor
Fritsch Horst
Josef Dr. Jarosch
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.)
Lewa Herbert Ott GmbH and Co KG
Original Assignee
Lewa Herbert Ott GmbH and Co KG
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 Lewa Herbert Ott GmbH and Co KG filed Critical Lewa Herbert Ott GmbH and Co KG
Priority to AT88104287T priority Critical patent/ATE86363T1/en
Publication of EP0283026A2 publication Critical patent/EP0283026A2/en
Publication of EP0283026A3 publication Critical patent/EP0283026A3/en
Application granted granted Critical
Publication of EP0283026B1 publication Critical patent/EP0283026B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F04B43/02—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

In a diaphragm pump, which is provided with at least one diaphragm (1), which separates a delivery chamber (4) from a pressure chamber (5) filled with an hydraulic fluid and is clmaped at its edge between the pump body (2) and a pump cover (3), and with an hydraulic diaphragm drive in the form of an oscillating displacement piston (6), which is displaceable in the pump body (2) between the pressure chamber (5) and a storage chamber (7) for the hydraulic fluid, a method as well as an arrangement for starting under load is provided. For this purpose on the pump drive side between the pressure chamber (5) and the storage chamber (7) a connection channel (20) is provided. This connection channel (20) during start-up of the pump leads the hydraulic fluid displaced by the displacement piston (6) in the pressure chamber (5) back into the storage chamber (7) and in the course of the further strokes of the displacement piston (6) is closable by a controlled closing device (A), so that the pressure in the pressure chamber (5) rises up to the level of the discharge pressure.
EP88104287A 1987-03-18 1988-03-17 Method and device for starting an hydraulic membrane pump against a load Expired - Lifetime EP0283026B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88104287T ATE86363T1 (en) 1987-03-18 1988-03-17 METHOD AND DEVICE FOR STARTING A DIAPHRAGM HYDRAULIC PUMP AGAINST LOAD.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873708868 DE3708868A1 (en) 1987-03-18 1987-03-18 METHOD AND DEVICE FOR STARTING A HYDRAULIC DIAPHRAGM PUMP AGAINST LOAD
DE3708868 1987-03-18

Publications (3)

Publication Number Publication Date
EP0283026A2 EP0283026A2 (en) 1988-09-21
EP0283026A3 true EP0283026A3 (en) 1989-08-30
EP0283026B1 EP0283026B1 (en) 1993-03-03

Family

ID=6323418

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88104287A Expired - Lifetime EP0283026B1 (en) 1987-03-18 1988-03-17 Method and device for starting an hydraulic membrane pump against a load

Country Status (5)

Country Link
US (1) US4865528A (en)
EP (1) EP0283026B1 (en)
JP (1) JPS63314384A (en)
AT (1) ATE86363T1 (en)
DE (2) DE3708868A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5171129A (en) * 1989-11-14 1992-12-15 Mechanical Technology Incorporated Hydraulically driven reciprocating compressor having a free-floating diaphragm
US5262068A (en) * 1991-05-17 1993-11-16 Millipore Corporation Integrated system for filtering and dispensing fluid having fill, dispense and bubble purge strokes
JPH062664A (en) * 1992-06-22 1994-01-11 Nippon Soken Inc Diaphragm type pump
DE4327969C2 (en) * 1993-08-19 1997-07-03 Ott Kg Lewa Hydraulically driven diaphragm pump
DE4327970C2 (en) * 1993-08-19 1997-07-03 Ott Kg Lewa Hydraulically driven diaphragm pump with mechanical diaphragm stroke limitation
DE19726239B4 (en) * 1997-06-20 2014-04-03 Linde Hydraulics Gmbh & Co. Kg Hydrostatic drive system with a pump and a plurality of consumers connected thereto
US6052430A (en) * 1997-09-25 2000-04-18 Siemens Medical Systems, Inc. Dynamic sub-space intensity modulation
JP4372346B2 (en) * 1998-02-17 2009-11-25 日機装株式会社 Diaphragm pump
US6071089A (en) * 1998-02-20 2000-06-06 General Motors Corporation Hydraulic diaphragm pump
DE10056568C1 (en) * 2000-11-15 2002-01-03 Horst Kleibrink Device, for controlling hydraulic membrane compressor, has control valve with throttle, where increasing differential pressure across throttle, causes control valve to open additional opening
JP4587098B2 (en) * 2004-07-21 2010-11-24 Ｓｍｃ株式会社 Pump device
US7425120B2 (en) * 2005-04-26 2008-09-16 Wanner Engineering, Inc. Diaphragm position control for hydraulically driven pumps
US7665974B2 (en) * 2007-05-02 2010-02-23 Wanner Engineering, Inc. Diaphragm pump position control with offset valve axis
JP2014177932A (en) * 2013-03-15 2014-09-25 Komatsu Denshi Kk Driving device for micro pump
DE102014109801A1 (en) * 2014-07-11 2016-01-14 Prominent Gmbh Diaphragm pump with reduced leakage supplement in case of overload
DE102018111601B4 (en) * 2018-05-15 2020-09-24 Prominent Gmbh Membrane system control with magnetically held locking element

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1069107A (en) * 1952-11-05 1954-07-05 Self-controlled compression chamber pump
FR1373780A (en) * 1963-08-19 1964-10-02 Improvements to diaphragm pumps
FR1589105A (en) * 1968-08-14 1970-03-23
US3767326A (en) * 1972-08-04 1973-10-23 Yarway Corp Volumetric flow control system for pumps

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1017469B (en) * 1953-02-07 1957-10-10 Jean Louis Gratzmuller Device for the automatic discharge of pumps
DE1528474B1 (en) * 1966-03-01 1970-07-23 Lewa Herbert Ott Fa Hydraulic control device on a diaphragm pump
DE1653512A1 (en) * 1966-10-04 1970-08-27 Lewa Herbert Ott Fa Hydraulically operated pump with magnetic flow control
JPS5536590A (en) * 1979-07-06 1980-03-14 Matsushita Electric Works Ltd Method of attaching piece to ceiling
JPS6123520U (en) * 1984-07-19 1986-02-12 光洋精工株式会社 roller bearing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1069107A (en) * 1952-11-05 1954-07-05 Self-controlled compression chamber pump
FR1373780A (en) * 1963-08-19 1964-10-02 Improvements to diaphragm pumps
FR1589105A (en) * 1968-08-14 1970-03-23
US3767326A (en) * 1972-08-04 1973-10-23 Yarway Corp Volumetric flow control system for pumps

Also Published As

Publication number Publication date
DE3708868A1 (en) 1988-10-06
US4865528A (en) 1989-09-12
JPS63314384A (en) 1988-12-22
ATE86363T1 (en) 1993-03-15
EP0283026B1 (en) 1993-03-03
DE3878706D1 (en) 1993-04-08
DE3708868C2 (en) 1990-08-23
EP0283026A2 (en) 1988-09-21

Similar Documents

Publication Publication Date Title
EP0283026A3 (en) Method and device for starting an hydraulic membrane pump against a load
GR3021021T3 (en) Pump for viscous material
DE3473005D1 (en) Fuel-injection pump
SU609489A3 (en) Device for exciting elastic waves in liquid by implosion
ES474636A1 (en) Manual control dispensing pump for liquid containers
DE3875935D1 (en) FUEL INJECTION PUMP.
JPS56160242A (en) Antiskid braking device for automobile
GB1270485A (en) Hydro-pneumatic suspension unit with automatic level regulation
JPS56146081A (en) Fluid pump
SU1078126A1 (en) Piston compressor
ES8304638A1 (en) Device for generating energy from the wave motion of water bodies
EP0298635A3 (en) Variable volume reservoir and method for its use
FR2400119A1 (en) Closed circuit hydraulic power system - has hollow liq. filled piston which draws pressure piston through cylinder to supply fluid to hydraulic motor coupled to generator
SU1657776A1 (en) Power cylinder with energy accumulator
JPS5673204A (en) Hydraulic driving apparatus
SU393881A1 (en) Hydraulic press drive
SU765019A1 (en) Hydraulic press drive
RU5430U1 (en) PISTON PUMP WITH MUSCLE DRIVE
JPS5569728A (en) Hydraulic pressure producing apparatus in use of variation in suction pressure of engine
SU826075A1 (en) Membrane compressor discharge apparatus
JPS5779274A (en) Lubricator for plunger pump
SU939820A1 (en) Pump
SE8804453D0 (en) HYDRAULIC PISTON PUMP
SU540045A1 (en) Pump-piston group hydraulic
SU941030A1 (en) Hand driven hydraulic apparatus for breaking blanks

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19900123

17Q First examination report despatched

Effective date: 19901001

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19930303

Ref country code: NL

Effective date: 19930303

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19930303

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19930303

Ref country code: BE

Effective date: 19930303

REF Corresponds to:

Ref document number: 86363

Country of ref document: AT

Date of ref document: 19930315

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: ING. ANTON AUSSERER

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19930317

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19930302

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19930331

Ref country code: LI

Effective date: 19930331

Ref country code: CH

Effective date: 19930331

REF Corresponds to:

Ref document number: 3878706

Country of ref document: DE

Date of ref document: 19930408

ET Fr: translation filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19970221

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19970313

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19970530

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980317

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19980331

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19980317

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050317