EP0164602A3 - Device for regulating the pressure and the capacity of a variable-capacity pump - Google Patents

Device for regulating the pressure and the capacity of a variable-capacity pump Download PDF

Info

Publication number
EP0164602A3
EP0164602A3 EP85105969A EP85105969A EP0164602A3 EP 0164602 A3 EP0164602 A3 EP 0164602A3 EP 85105969 A EP85105969 A EP 85105969A EP 85105969 A EP85105969 A EP 85105969A EP 0164602 A3 EP0164602 A3 EP 0164602A3
Authority
EP
European Patent Office
Prior art keywords
circuit
regulating
delivery
pump
capacity
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
EP85105969A
Other languages
German (de)
Other versions
EP0164602B1 (en
EP0164602B2 (en
EP0164602A2 (en
Inventor
Volker Dipl.-Ing. Palm
Berthold Pfuhl
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6238344&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0164602(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to AT85105969T priority Critical patent/ATE46561T1/en
Publication of EP0164602A2 publication Critical patent/EP0164602A2/en
Publication of EP0164602A3 publication Critical patent/EP0164602A3/en
Publication of EP0164602B1 publication Critical patent/EP0164602B1/en
Application granted granted Critical
Publication of EP0164602B2 publication Critical patent/EP0164602B2/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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/08—Regulating by delivery pressure
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Transmission Device (AREA)

Abstract

A pressure and delivery regulating device for an adjustable pump includes a directional control valve connected in a discharge conduit and to a control conduit branching from the discharge conduit between the pump and the directional control valve. The control conduit leads to a setting piston for the adjustment of the pump. The directional control valve is controlled by a solenoid which in turn is controlled by a control system consisting of a regulating circuit, a delivery limiting circuit and a control circuit for the solenoid. The output signal from the regulating circuit controls a desired delivery value signal supplied to the delivery limiting circuit. A follow-up circuit connected between the regulating circuit and the delivery limiting circuit corrects the regulating signal and a circuit for producing a direction dependent signal from the actual pressure provides a damping of the regulating circuit.
EP85105969A 1984-06-14 1985-05-15 Device for regulating the pressure and the capacity of a variable-capacity pump Expired - Lifetime EP0164602B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85105969T ATE46561T1 (en) 1984-06-14 1985-05-15 DEVICE FOR ADJUSTING THE PRESSURE AND DELIVERY OF AN ADJUSTABLE PUMP.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3422089 1984-06-14
DE19843422089 DE3422089A1 (en) 1984-06-14 1984-06-14 DEVICE FOR REGULATING THE PRESSURE AND FLOW RATE OF AN ADJUSTABLE PUMP

Publications (4)

Publication Number Publication Date
EP0164602A2 EP0164602A2 (en) 1985-12-18
EP0164602A3 true EP0164602A3 (en) 1987-12-16
EP0164602B1 EP0164602B1 (en) 1989-09-20
EP0164602B2 EP0164602B2 (en) 1994-12-28

Family

ID=6238344

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85105969A Expired - Lifetime EP0164602B2 (en) 1984-06-14 1985-05-15 Device for regulating the pressure and the capacity of a variable-capacity pump

Country Status (5)

Country Link
US (1) US4708596A (en)
EP (1) EP0164602B2 (en)
JP (1) JP2654770B2 (en)
AT (1) ATE46561T1 (en)
DE (2) DE3422089A1 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4801247A (en) * 1985-09-02 1989-01-31 Yuken Kogyo Kabushiki Kaisha Variable displacement piston pump
DE3644736C2 (en) * 1985-12-30 1996-01-11 Rexroth Mannesmann Gmbh Control arrangement for at least two hydraulic consumers fed by at least one pump
DE3619147C2 (en) * 1986-06-06 1995-04-20 Bosch Gmbh Robert Method for compensating losses of an adjustable pump
DE3644745A1 (en) * 1986-12-30 1988-07-14 Rexroth Mannesmann Gmbh CONTROL ARRANGEMENT FOR AT LEAST TWO HYDRAULIC CONSUMERS SUPPLIED BY AT LEAST ONE PUMP
DE3702002A1 (en) * 1987-01-23 1988-08-04 Hydromatik Gmbh CONTROL DEVICE FOR A HYDROSTATIC TRANSMISSION FOR AT LEAST TWO CONSUMERS
US4886422A (en) * 1987-07-09 1989-12-12 Tokyo Keiki Company Ltd. Control apparatus of variable delivery pump
DE3733396C2 (en) * 1987-10-02 1998-12-17 Rexroth Mannesmann Gmbh Electric pump control for flow and pressure control on one consumer
JP2620961B2 (en) * 1988-09-26 1997-06-18 本田技研工業株式会社 Stroke detection value correction device for variable displacement compressor
DE8906826U1 (en) * 1989-06-03 1989-09-07 Keicher, Siegfried, 7906 Blaustein Hydraulic control device for controlling a control pump for driving a hydraulic motor
US5177965A (en) * 1989-12-29 1993-01-12 Heinrich Nikolaus Pump control system with limit signal generated at a given displacement setting
DE3943357A1 (en) * 1989-12-29 1991-07-04 Rexroth Mannesmann Gmbh CIRCUIT ARRANGEMENT WITH A CONTROL ELECTRONICS FOR THE MAGNETIC COILS OF ACTUATORS OF A HYDRAULIC SYSTEM
US5287699A (en) * 1990-01-16 1994-02-22 Kabushiki Kaisha Komatsu Seisakusho Automatic vibration method and device for hydraulic drilling machine
DE4102087A1 (en) * 1991-01-24 1992-07-30 Rexroth Mannesmann Gmbh Pressure regulation circuit for hydraulic pressure system - limits press regulator output signal when feed press rate exceeds threshold
DE4140423A1 (en) * 1991-12-07 1993-06-09 Mannesmann Rexroth Gmbh, 8770 Lohr, De System for regulating pressure of hydraulic working fluid in machine - has hydraulically operated control valve and pressure transducers for signalling pressure to comparator in electronic controller
US5500580A (en) * 1994-09-19 1996-03-19 Hr Textron Inc. Integrated compliance servovalve
KR100212645B1 (en) * 1994-09-30 1999-08-02 토니헬샴 Discharge flow controlling unit in hydraulic pump
DE10104851A1 (en) * 2001-02-03 2002-08-22 Zf Lenksysteme Gmbh Pump system with a hydraulic pump, in particular for a steering system
JP3085306U (en) * 2001-10-11 2002-04-26 株式会社サルバニーニジャパン Bending equipment
JP2005509559A (en) 2001-11-23 2005-04-14 ツェットエフ、レンクジステメ、ゲゼルシャフト、ミット、ベシュレンクテル、ハフツング Hydraulic servo-assisted steering system and method for adjusting such a steering system
DE10157548A1 (en) * 2001-11-23 2003-06-05 Zf Lenksysteme Gmbh Hydraulic servo-assisted steering system for motor vehicles stores actual valve characteristic curves in groups while preparing flow characteristic curves for a magnetic actuator in a converter to match the valve curves
DE10157527A1 (en) * 2001-11-23 2003-06-05 Zf Lenksysteme Gmbh Hydraulic servo-assisted steering system for motor vehicles stores actual valve characteristic curves in groups while preparing flow characteristic curves for a magnetic actuator in a converter to match the valve curves
EP3268609B8 (en) * 2015-03-10 2021-01-13 Henkel AG & Co. KGaA Method for compensating leakage losses and conveyor system for conveying a defined volume of a liquid

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2458840A1 (en) * 1979-06-12 1981-01-02 Parker Hannifin Corp ELECTRONIC ASSEMBLY FOR CONTROLLING VARIABLE FLOW PUMPS
FR2494784A1 (en) * 1980-11-26 1982-05-28 Bso Steuerungstechnik Gmbh ADJUSTING DEVICE FOR VARIABLE FLOW HYDRAULIC PUMPS

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3777492A (en) * 1971-02-17 1973-12-11 Dowty Technical Dev Ltd Hydraulic apparatus including variable delivery pumps
DE2505780C2 (en) * 1975-02-12 1986-03-06 Robert Bosch Gmbh, 7000 Stuttgart Device for regulating at least one adjustable pump
US3996744A (en) * 1975-09-02 1976-12-14 The Cessna Aircraft Company Automatic control for hydraulic power transmission
DE2840687A1 (en) * 1978-09-19 1980-04-03 Bosch Gmbh Robert DEVICE FOR CONTROLLING THE FLOW RATE AND LIMITING THE DELIVERY PRESSURE OF AN ADJUSTABLE PUMP.
DE2904474A1 (en) * 1979-02-07 1980-08-28 Bosch Gmbh Robert Flow control for variable pump - has pump positioner control valve actuated by throttle differential via pilot pressure varying valve
DE3001680A1 (en) * 1980-01-18 1981-07-23 Robert Bosch Gmbh, 7000 Stuttgart CURRENT CONTROL DEVICE FOR A PUMP
DE3016609A1 (en) * 1980-04-30 1981-11-05 G.L. Rexroth Gmbh, 8770 Lohr Radial vane type pump - has throughput controlled by positioning valve energised by signal from discharge flow meter
DE3027819A1 (en) * 1980-07-23 1982-02-25 Backe, Wolfgang, Prof.Dr.-Ing., 5100 Aachen DEVICE FOR REGULATING A VARIABLE PUMP
DE3143074A1 (en) * 1981-10-30 1983-05-11 Robert Bosch Gmbh, 7000 Stuttgart Device for controlling the pressure and flow of an adjustable pump

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2458840A1 (en) * 1979-06-12 1981-01-02 Parker Hannifin Corp ELECTRONIC ASSEMBLY FOR CONTROLLING VARIABLE FLOW PUMPS
FR2494784A1 (en) * 1980-11-26 1982-05-28 Bso Steuerungstechnik Gmbh ADJUSTING DEVICE FOR VARIABLE FLOW HYDRAULIC PUMPS

Also Published As

Publication number Publication date
DE3573150D1 (en) 1989-10-26
US4708596A (en) 1987-11-24
EP0164602B1 (en) 1989-09-20
EP0164602B2 (en) 1994-12-28
DE3422089A1 (en) 1985-12-19
ATE46561T1 (en) 1989-10-15
JPS614881A (en) 1986-01-10
EP0164602A2 (en) 1985-12-18
JP2654770B2 (en) 1997-09-17

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