EP0897062A3 - Druckregelkreis für mehrere Hydropumpen mit Druckmittler - Google Patents

Druckregelkreis für mehrere Hydropumpen mit Druckmittler Download PDF

Info

Publication number
EP0897062A3
EP0897062A3 EP98113906A EP98113906A EP0897062A3 EP 0897062 A3 EP0897062 A3 EP 0897062A3 EP 98113906 A EP98113906 A EP 98113906A EP 98113906 A EP98113906 A EP 98113906A EP 0897062 A3 EP0897062 A3 EP 0897062A3
Authority
EP
European Patent Office
Prior art keywords
pressure
working
control circuit
hydraulic pump
averager
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
EP98113906A
Other languages
English (en)
French (fr)
Other versions
EP0897062A2 (de
EP0897062B1 (de
Inventor
Dirk Van Aalst
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 Hydromatik GmbH
Original Assignee
Brueninghaus Hydromatik 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 Hydromatik GmbH filed Critical Brueninghaus Hydromatik GmbH
Publication of EP0897062A2 publication Critical patent/EP0897062A2/de
Publication of EP0897062A3 publication Critical patent/EP0897062A3/de
Application granted granted Critical
Publication of EP0897062B1 publication Critical patent/EP0897062B1/de
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
    • F04B49/002—Hydraulic systems to change the pump delivery
    • 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
    • F04B49/12—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 by varying the length of stroke of the working members
    • 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
    • F04B2205/00—Fluid parameters
    • F04B2205/05—Pressure after the pump outlet
    • 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
    • F04B2207/00—External parameters
    • F04B2207/01—Load in general

Landscapes

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

Abstract

Eine Regelvorrichtung (1) für mehrere in getrennte Arbeitsleitungen (1a, 1b) fördernde Hydropumpen (2a, 2b) weist Verstellvorrichtungen (6a, 6b) zum Verstellen der Verdrängungsvolumina (Vg) der Hydropumpen (2a, 2b) und eine hydraulische Regeleinheit (30, 11a, 11b, 19a, 19b, 20a, 20b) zum Ansteuern der Verstellvorrichtungen (6a, 6b) auf. Die Regeleinheit umfaßt einen Druckmittler (30), der mit den getrennten Arbeitsleitungen (1a, 1b) der Hydropumpen (2a, 2b) verbunden ist und aus den in den getrennten Arbeitsleitungen (1a, 1b) herrschenden Arbeitsdrücken (p1, p2) einen gemittelten Arbeitsdruck (pm) erzeugt, der zur Ansteuerung der Verstellvorrichtungen (6a, 6b) dient. Der Druckmittler (30) ist mit einem Geber (33) zusätzlich so beaufschlagbar, daµ der gemittelte Arbeitsdruck (pm) nicht nur von den in den Arbeitsleitungen (1a, 1b) herrschenden Arbeitsdrücken (p1, p2), sondern zusätzlich von einem auf den Geber (33) einwirkenden Gebersignal abhängig ist.
EP98113906A 1997-08-13 1998-07-24 Druckregelkreis für mehrere Hydropumpen mit Druckmittler Expired - Lifetime EP0897062B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19735110A DE19735110B4 (de) 1997-08-13 1997-08-13 Regelvorrichtung mit Druckmittler
DE19735110 1997-08-13

Publications (3)

Publication Number Publication Date
EP0897062A2 EP0897062A2 (de) 1999-02-17
EP0897062A3 true EP0897062A3 (de) 1999-12-01
EP0897062B1 EP0897062B1 (de) 2003-09-03

Family

ID=7838874

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98113906A Expired - Lifetime EP0897062B1 (de) 1997-08-13 1998-07-24 Druckregelkreis für mehrere Hydropumpen mit Druckmittler

Country Status (2)

Country Link
EP (1) EP0897062B1 (de)
DE (2) DE19735110B4 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10024696B4 (de) * 2000-05-18 2006-05-04 Daimlerchrysler Ag Pumpenanordnung
DE10119237B4 (de) * 2001-04-19 2005-08-11 Brueninghaus Hydromatik Gmbh Druckmittler
DE10151401A1 (de) * 2001-10-18 2003-05-08 Brueninghaus Hydromatik Gmbh Summenleistungsregler und Druckmittler
CN114934897A (zh) * 2022-03-17 2022-08-23 广东科达液压技术有限公司 基于变量柱塞泵的控制机构

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4248573A (en) * 1978-09-22 1981-02-03 Kabushiki Kaisha Komatsu Seisakusho Hydraulic control system for variable displacement pump
DE3407827A1 (de) * 1983-03-24 1984-10-04 Hydromatik GmbH, 7915 Elchingen Druckmittler
EP0133870A1 (de) * 1983-06-28 1985-03-13 Hydromatik GmbH Regelvorrichtung für mehrere aus hydrostatischen Getrieben bestehende Antriebsaggregate
EP0144788A1 (de) * 1983-11-08 1985-06-19 Hydromatik GmbH Leistungs-Regelvorrichtung für einen hydrostatischen Antrieb mit Fördermengeneinstellung
DE4018700A1 (de) * 1990-06-11 1991-12-12 Linde Ag Leistungsregelung fuer eine hydraulisch verstellbare pumpe
EP0610940A1 (de) * 1993-02-11 1994-08-17 DAEWOO HEAVY INDUSTRIES Co. Ltd. Regler für eine Pumpe mit veränderlicher Förderleistung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3408105A1 (de) * 1984-03-05 1985-09-12 Hydromatik GmbH, 7915 Elchingen Summenleistungs-regelvorrichtung fuer eine wenigstens zwei pumpen oder pumpengruppen mit veraenderlichem foerdervolumen und mit einem gemeinsamen antrieb aufweisende hydrostatische anlage

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4248573A (en) * 1978-09-22 1981-02-03 Kabushiki Kaisha Komatsu Seisakusho Hydraulic control system for variable displacement pump
DE3407827A1 (de) * 1983-03-24 1984-10-04 Hydromatik GmbH, 7915 Elchingen Druckmittler
EP0133870A1 (de) * 1983-06-28 1985-03-13 Hydromatik GmbH Regelvorrichtung für mehrere aus hydrostatischen Getrieben bestehende Antriebsaggregate
EP0144788A1 (de) * 1983-11-08 1985-06-19 Hydromatik GmbH Leistungs-Regelvorrichtung für einen hydrostatischen Antrieb mit Fördermengeneinstellung
DE4018700A1 (de) * 1990-06-11 1991-12-12 Linde Ag Leistungsregelung fuer eine hydraulisch verstellbare pumpe
EP0610940A1 (de) * 1993-02-11 1994-08-17 DAEWOO HEAVY INDUSTRIES Co. Ltd. Regler für eine Pumpe mit veränderlicher Förderleistung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BRUECKLE F.: "Energy efficient pumps and controls for multiple pump excavator circuits", PROCEEDINGS OF THE NATIONAL CONFERENCE ON FLUID POWER, vol. 34, 1981, Cleveland, Ohio, pages 77 - 103, XP002117376 *

Also Published As

Publication number Publication date
EP0897062A2 (de) 1999-02-17
EP0897062B1 (de) 2003-09-03
DE59809468D1 (de) 2003-10-09
DE19735110B4 (de) 2004-09-16
DE19735110A1 (de) 1999-02-25

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