FR2671585B1 - - Google Patents

Info

Publication number
FR2671585B1
FR2671585B1 FR9200344A FR9200344A FR2671585B1 FR 2671585 B1 FR2671585 B1 FR 2671585B1 FR 9200344 A FR9200344 A FR 9200344A FR 9200344 A FR9200344 A FR 9200344A FR 2671585 B1 FR2671585 B1 FR 2671585B1
Authority
FR
France
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 - Fee Related
Application number
FR9200344A
Other languages
French (fr)
Other versions
FR2671585A1 (fr
Inventor
Walter Kropp
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.)
Linde GmbH
Original Assignee
Linde 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 Linde GmbH filed Critical Linde GmbH
Publication of FR2671585A1 publication Critical patent/FR2671585A1/fr
Application granted granted Critical
Publication of FR2671585B1 publication Critical patent/FR2671585B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
    • E02F9/2242—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance including an electronic controller
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20546—Type of pump variable capacity
    • F15B2211/20553—Type of pump variable capacity with pilot circuit, e.g. for controlling a swash plate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20576—Systems with pumps with multiple pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/3059—Assemblies of multiple valves having multiple valves for multiple output members
    • F15B2211/30595—Assemblies of multiple valves having multiple valves for multiple output members with additional valves between the groups of valves for multiple output members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3111—Neutral or centre positions the pump port being closed in the centre position, e.g. so-called closed centre
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/329—Directional control characterised by the type of actuation actuated by fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/35—Directional control combined with flow control
    • F15B2211/351—Flow control by regulating means in feed line, i.e. meter-in control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/35—Directional control combined with flow control
    • F15B2211/353—Flow control by regulating means in return line, i.e. meter-out control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/65—Methods of control of the load sensing pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7142—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being arranged in multiple groups

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
FR9200344A 1991-01-15 1992-01-15 Systeme d'entrainement hydraulique, notamment pour une excavatrice. Granted FR2671585A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4100988A DE4100988C2 (de) 1991-01-15 1991-01-15 Hydraulisches Antriebssystem

Publications (2)

Publication Number Publication Date
FR2671585A1 FR2671585A1 (fr) 1992-07-17
FR2671585B1 true FR2671585B1 (US06650917-20031118-M00005.png) 1994-12-09

Family

ID=6423051

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9200344A Granted FR2671585A1 (fr) 1991-01-15 1992-01-15 Systeme d'entrainement hydraulique, notamment pour une excavatrice.

Country Status (5)

Country Link
US (1) US5211014A (US06650917-20031118-M00005.png)
JP (1) JPH04296205A (US06650917-20031118-M00005.png)
DE (1) DE4100988C2 (US06650917-20031118-M00005.png)
FR (1) FR2671585A1 (US06650917-20031118-M00005.png)
GB (1) GB2251961B (US06650917-20031118-M00005.png)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5337561A (en) * 1992-11-17 1994-08-16 Flow International Corporation Ultra high pressure multiple intensifier system
KR100241862B1 (ko) * 1995-05-17 2000-02-01 안자키 사토루 유압구동식 작업차량의 유압회로
US5615553A (en) * 1995-06-28 1997-04-01 Case Corporation Hydraulic circuit with load sensing feature
JPH1037907A (ja) * 1996-07-26 1998-02-13 Komatsu Ltd 圧油供給装置
JPH11218102A (ja) * 1997-11-11 1999-08-10 Komatsu Ltd 圧油供給装置
US6068063A (en) * 1998-02-27 2000-05-30 Flexi-Coil Ltd. Hydraulic connection circuit between first and active hydraulic circuits
JP2000087904A (ja) * 1998-09-14 2000-03-28 Komatsu Ltd 圧油供給装置
JP4212225B2 (ja) * 2000-07-28 2009-01-21 株式会社小松製作所 建設機械における走行油圧回路
DE10255738A1 (de) * 2002-11-07 2004-05-27 Bosch Rexroth Ag Hydraulisches Zweikreissystem
WO2004042235A1 (de) * 2002-11-07 2004-05-21 Bosch Rexroth Ag Hydraulisches zweikreisbremssystem
JP2005098455A (ja) * 2003-09-26 2005-04-14 Mitsubishi Heavy Ind Ltd 産業機械の油圧制御装置
US7520130B2 (en) * 2003-11-14 2009-04-21 Komatsu Ltd. Hydraulic pressure control device of construction machine
US7059124B2 (en) * 2003-12-01 2006-06-13 Komatsu Ltd. Hydraulic control apparatus for work machines
JP4541209B2 (ja) * 2005-03-31 2010-09-08 ナブテスコ株式会社 油圧回路
JP4338758B2 (ja) * 2005-05-18 2009-10-07 株式会社小松製作所 建設機械の油圧制御装置
US7559197B2 (en) 2005-08-31 2009-07-14 Caterpillar Inc. Combiner valve control system and method
DE102006053897A1 (de) * 2006-11-15 2008-05-21 Robert Bosch Gmbh Hydraulisches Zweikreissystem und Zusammenschaltventilanordnung
DE102008011016B4 (de) * 2008-02-25 2019-02-14 Linde Hydraulics Gmbh & Co. Kg Hydrostatisches Antriebssystem
DE102008038793A1 (de) 2008-04-24 2009-10-29 Robert Bosch Gmbh Hydraulisches Zweikreissystem und Verfahren zum Ansteuern von Verbrauchern eines Zweikreissystems
JP5528276B2 (ja) * 2010-09-21 2014-06-25 株式会社クボタ 作業機の油圧システム
DE102011108851A1 (de) * 2011-07-28 2013-01-31 Liebherr-Werk Ehingen Gmbh Kransteuerungssystem
DE102012209142A1 (de) 2012-05-31 2013-12-05 Putzmeister Engineering Gmbh Hydrauliksystem
FR2992043B1 (fr) * 2012-06-15 2015-05-01 P T C Dispositif de couplage de groupes hydrauliques d'alimentation d'equipements hydrauliques, procede de couplage correspondant et systeme vibrant comportant un tel dispositif de couplage
WO2015060797A1 (en) * 2013-10-24 2015-04-30 Hidromek Hidrolik Ve Mekanik Makina Imalat A.S. Preventing lost power generation and providing fuel saving by flow sharing and flow direction in an open hydraulic circuit having multiple pumps
JP6034773B2 (ja) * 2013-11-13 2016-11-30 株式会社クボタ 作業機
EP3076028B1 (en) 2015-04-02 2023-07-05 Walvoil S.p.A. Hydraulic load-sensing flow-sharing system
CN117090819A (zh) * 2023-10-20 2023-11-21 山东亿嘉农业机械装备股份有限公司 一种拖拉机尾部液压系统总成

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1952034A1 (de) * 1969-10-15 1971-04-22 Linde Ag Steuereinrichtung fuer eine hydraulische Anlage und Ventil hierzu
US3998053A (en) * 1976-03-15 1976-12-21 Caterpillar Tractor Co. Three-pump - three-circuit fluid system of a work vehicle having controlled fluid-combining means
US3991571A (en) * 1976-03-15 1976-11-16 Caterpillar Tractor Co. Fluid system of a work vehicle having fluid combining means and signal combining means
US4147034A (en) * 1978-04-19 1979-04-03 Caterpillar Tractor Co. Hydraulic system with priority control
US4335577A (en) * 1980-06-19 1982-06-22 Deere & Company Hydraulic system having variable displacement pumps controlled by power beyond flow
DE3044171A1 (de) * 1980-11-24 1982-06-16 Linde Ag, 6200 Wiesbaden Antriebssystem mit mindestens zwei teilsystemen
DE3146508A1 (de) * 1980-11-24 1982-06-24 Linde Ag, 6200 Wiesbaden Antriebssystem mit mindestens zwei teilsystemen
JPS592930A (ja) * 1982-06-29 1984-01-09 Komatsu Ltd 油圧駆動式作業車両の油圧回路
EP0235545B1 (en) * 1986-01-25 1990-09-12 Hitachi Construction Machinery Co., Ltd. Hydraulic drive system
DE3703297A1 (de) * 1987-02-04 1988-08-18 Fendt & Co Xaver Hydraulikanlage zur betaetigung von arbeitsgeraeten an fahrzeugen
JPH07122276B2 (ja) * 1989-07-07 1995-12-25 油谷重工株式会社 建設機械の油圧ポンプ制御回路
US5063739A (en) * 1991-02-19 1991-11-12 Caterpillar Inc. Load sensing hydraulic control system

Also Published As

Publication number Publication date
GB9200270D0 (en) 1992-02-26
US5211014A (en) 1993-05-18
GB2251961B (en) 1994-10-26
DE4100988A1 (de) 1992-07-16
DE4100988C2 (de) 2001-05-10
JPH04296205A (ja) 1992-10-20
GB2251961A (en) 1992-07-22
FR2671585A1 (fr) 1992-07-17

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Legal Events

Date Code Title Description
ST Notification of lapse