DE3876661D1 - CONTROL DEVICE FOR AT LEAST TWO HYDROSTATIC MACHINES RELATED TO A COMMON WORKING PRESSURE LINE. - Google Patents

CONTROL DEVICE FOR AT LEAST TWO HYDROSTATIC MACHINES RELATED TO A COMMON WORKING PRESSURE LINE.

Info

Publication number
DE3876661D1
DE3876661D1 DE8888104661T DE3876661T DE3876661D1 DE 3876661 D1 DE3876661 D1 DE 3876661D1 DE 8888104661 T DE8888104661 T DE 8888104661T DE 3876661 T DE3876661 T DE 3876661T DE 3876661 D1 DE3876661 D1 DE 3876661D1
Authority
DE
Germany
Prior art keywords
control device
ist
regulator
pressure line
working pressure
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
DE8888104661T
Other languages
German (de)
Inventor
Gerhard Beutler
Hermann Maier
Clemens Krebs
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.)
Brueninghaus Hydraulik GmbH
Original Assignee
Brueninghaus Hydraulik 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 Brueninghaus Hydraulik GmbH filed Critical Brueninghaus Hydraulik GmbH
Priority to DE8888104661T priority Critical patent/DE3876661D1/en
Application granted granted Critical
Publication of DE3876661D1 publication Critical patent/DE3876661D1/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

Landscapes

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

Abstract

The regulation system is used to ensure equal loading of the pumps (1) using a respective setting device (6, 7) with a regulator (3, 4) controlling the pump flow vol.. Each regulator (3, 4) is associated with a control unit (5) providing a control signal (X ist, X ist1) dependent on the flow vol. adjustment. The control signal is used as the reference signal (XsoH) for comparison with the actual flow vol. (X ist 1, X ist) for the other regulator (4, 3). Pref. each setting device (6, 7) is used a piston/cylinder device. Each associated control device (5) comprises a pressure regulating valve, e.g. a pressure limiting valve (17), a pressure reduction valve or a variable throttle.
DE8888104661T 1987-04-02 1988-03-23 CONTROL DEVICE FOR AT LEAST TWO HYDROSTATIC MACHINES RELATED TO A COMMON WORKING PRESSURE LINE. Expired - Lifetime DE3876661D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8888104661T DE3876661D1 (en) 1987-04-02 1988-03-23 CONTROL DEVICE FOR AT LEAST TWO HYDROSTATIC MACHINES RELATED TO A COMMON WORKING PRESSURE LINE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873711053 DE3711053A1 (en) 1987-04-02 1987-04-02 CONTROL DEVICE FOR AT LEAST TWO HYDROSTATIC MACHINES CONNECTED TO A COMMON WORKING PRESSURE LINE
DE8888104661T DE3876661D1 (en) 1987-04-02 1988-03-23 CONTROL DEVICE FOR AT LEAST TWO HYDROSTATIC MACHINES RELATED TO A COMMON WORKING PRESSURE LINE.

Publications (1)

Publication Number Publication Date
DE3876661D1 true DE3876661D1 (en) 1993-01-28

Family

ID=6324677

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19873711053 Granted DE3711053A1 (en) 1987-04-02 1987-04-02 CONTROL DEVICE FOR AT LEAST TWO HYDROSTATIC MACHINES CONNECTED TO A COMMON WORKING PRESSURE LINE
DE8888104661T Expired - Lifetime DE3876661D1 (en) 1987-04-02 1988-03-23 CONTROL DEVICE FOR AT LEAST TWO HYDROSTATIC MACHINES RELATED TO A COMMON WORKING PRESSURE LINE.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19873711053 Granted DE3711053A1 (en) 1987-04-02 1987-04-02 CONTROL DEVICE FOR AT LEAST TWO HYDROSTATIC MACHINES CONNECTED TO A COMMON WORKING PRESSURE LINE

Country Status (2)

Country Link
EP (1) EP0284988B1 (en)
DE (2) DE3711053A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4025638C1 (en) * 1990-08-13 1991-12-05 Brueninghaus Hydraulik Gmbh, 7240 Horb, De
DE4118869C2 (en) * 1991-06-07 1995-06-29 Hydromatik Gmbh Control device for controlling the displacement volume of several hydrostatic machines
DE19626793C1 (en) * 1996-07-03 1997-06-26 Brueninghaus Hydromatik Gmbh Hydraulic equipment for parallel regulation of hydrostatic displacement pumps
DE102015000869B4 (en) * 2015-01-23 2019-10-24 Dürr Systems Ag Pump arrangement and corresponding operating method
AT524891B1 (en) * 2021-03-29 2023-01-15 Engel Austria Gmbh Hydraulic drive device for a shaping machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1056655A (en) * 1964-11-16 1967-01-25 Ifield & Sons Pty Ltd R J Torque control means for variable displacement hydraulic pumps
DE1921298B2 (en) * 1969-04-25 1973-08-23 Hydromatik Gmbh, 7900 Ulm DEVICE FOR REGULATING THE FLOW RATE OF ADJUSTABLE AXIAL PISTON PUMPS
US4055046A (en) * 1976-12-22 1977-10-25 Caterpillar Tractor Co. Control system having override for fluid operated work elements
CA1104033A (en) * 1977-02-24 1981-06-30 Commercial Shearing, Inc. Pressure and flow compensated control system with constant torque and viscosity sensing over-ride
DE8335902U1 (en) * 1983-12-14 1987-06-04 Brueninghaus Hydraulik Gmbh, 7240 Horb Torque control device for an adjustable hydraulic pump

Also Published As

Publication number Publication date
DE3711053C2 (en) 1992-01-30
DE3711053A1 (en) 1988-10-20
EP0284988B1 (en) 1992-12-16
EP0284988A2 (en) 1988-10-05
EP0284988A3 (en) 1989-12-27

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition