JPS5417114B1 - - Google Patents

Info

Publication number
JPS5417114B1
JPS5417114B1 JP9083070A JP9083070A JPS5417114B1 JP S5417114 B1 JPS5417114 B1 JP S5417114B1 JP 9083070 A JP9083070 A JP 9083070A JP 9083070 A JP9083070 A JP 9083070A JP S5417114 B1 JPS5417114 B1 JP S5417114B1
Authority
JP
Japan
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.)
Pending
Application number
JP9083070A
Other languages
Japanese (ja)
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 filed Critical
Publication of JPS5417114B1 publication Critical patent/JPS5417114B1/ja
Pending 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
    • B62D11/02—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides
    • B62D11/06—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source
    • B62D11/10—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears
    • B62D11/14—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source
    • B62D11/18—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source the additional power supply being supplied hydraulically
    • B62D11/183—Control systems therefor
    • 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
    • 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/25—Pressure control functions
    • 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
    • F15B2211/30505—Non-return valves, i.e. check valves
    • 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
    • F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open 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
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • 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
    • F15B2211/40—Flow control
    • F15B2211/45—Control of bleed-off flow, e.g. control of bypass flow to the return line
    • 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
    • F15B2211/40—Flow control
    • F15B2211/46—Control of flow in the 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
    • F15B2211/635—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements
    • F15B2211/6355—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements having valve means
    • 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)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)
JP9083070A 1969-10-15 1970-10-15 Pending JPS5417114B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691952034 DE1952034A1 (en) 1969-10-15 1969-10-15 Control device for a hydraulic system and valve for this

Publications (1)

Publication Number Publication Date
JPS5417114B1 true JPS5417114B1 (en) 1979-06-27

Family

ID=5748310

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9083070A Pending JPS5417114B1 (en) 1969-10-15 1970-10-15

Country Status (6)

Country Link
US (1) US3720059A (en)
JP (1) JPS5417114B1 (en)
DE (1) DE1952034A1 (en)
FR (1) FR2065949A5 (en)
GB (1) GB1290247A (en)
SE (1) SE366098B (en)

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FR2148331B2 (en) * 1971-08-06 1974-03-29 Poclain Sa
DE2148502B2 (en) * 1971-09-29 1978-11-02 G.L. Rexroth Gmbh, 8770 Lohr Single or multi-circuit hydraulic system
US3922855A (en) * 1971-12-13 1975-12-02 Caterpillar Tractor Co Hydraulic circuitry for an excavator
BE792618A (en) * 1971-12-13 1973-06-12 Caterpillar Tractor Co Set of hydraulic control valves.
US4030623A (en) * 1971-12-13 1977-06-21 Caterpillar Tractor Co. Hydraulic circuitry for an excavator
BR7204458D0 (en) * 1972-06-16 1974-09-05 Orenstein & Koppel Ag PAS WHEEL EXCAVATOR AND HYDRAULIC ACTUALLY
DE2364282C3 (en) * 1973-12-22 1983-01-13 O & K Orenstein & Koppel Ag, 1000 Berlin Circuit arrangement for hydraulic motors
JPS539346B2 (en) * 1974-03-11 1978-04-05
US4179981A (en) * 1975-10-30 1979-12-25 Poclain Device for sequentially supplying several hydraulic motors
US4024710A (en) * 1976-03-25 1977-05-24 Koehring Company Load sensing hydraulic circuit having power matching means
US4078681A (en) * 1976-08-24 1978-03-14 Caterpillar Tractor Co. Dual pump hydraulic control system with predetermined flow crossover provision
US4210061A (en) * 1976-12-02 1980-07-01 Caterpillar Tractor Co. Three-circuit fluid system having controlled fluid combining
US4112821A (en) * 1976-12-03 1978-09-12 Caterpillar Tractor Co. Fluid control system for multiple circuited work elements
US4142445A (en) * 1977-03-17 1979-03-06 Caterpillar Tractor Co. Crossover plural circuit fluid system
US4073141A (en) * 1977-03-17 1978-02-14 Caterpillar Tractor Co. Fluid control system with priority flow
US4262554A (en) * 1978-08-18 1981-04-21 S.R.M. Hydromekanik Aktiebolag Hydraulic valve system for controlling particularly a vehicle gearbox
US4208874A (en) * 1978-08-28 1980-06-24 Caterpillar Tractor Co. Apparatus for producing different flow rates of a fluid
US4369625A (en) * 1979-06-27 1983-01-25 Hitachi Construction Machinery Co., Ltd. Drive system for construction machinery and method of controlling hydraulic circuit means thereof
DE2930107A1 (en) * 1979-07-25 1981-02-05 Zahnradfabrik Friedrichshafen HIGH PRESSURE PUMP WITH PRESSURE REGULATOR
JPS56501057A (en) * 1979-08-30 1981-07-30
DE3007787A1 (en) * 1980-02-29 1981-09-17 Linde Ag, 6200 Wiesbaden Control unit with slide valve - has second flow channel with throttle and sealing valve, with connected actuators
JPS6129813Y2 (en) * 1980-07-07 1986-09-02
JPS5751006A (en) * 1980-09-08 1982-03-25 Toshiba Mach Co Ltd Composite control valve for conflluence
DE3146508A1 (en) * 1980-11-24 1982-06-24 Linde Ag, 6200 Wiesbaden Drive system with at least two secondary systems
DE3044144A1 (en) * 1980-11-24 1982-09-09 Linde Ag, 6200 Wiesbaden HYDROSTATIC DRIVE SYSTEM WITH ONE ADJUSTABLE PUMP AND SEVERAL CONSUMERS
US4372193A (en) * 1980-12-24 1983-02-08 Caterpillar Tractor Co. System with constant force actuator
WO1982002230A1 (en) * 1980-12-24 1982-07-08 Hall Lowell R System with constant force actuator
US4378675A (en) * 1981-01-14 1983-04-05 Mobil Oil Corporation Hydraulic pump interlock system
US4561824A (en) * 1981-03-03 1985-12-31 Hitachi, Ltd. Hydraulic drive system for civil engineering and construction machinery
KR870000506B1 (en) * 1981-05-02 1987-03-12 니시모도 후미히라(西元文平) Hydraulic circuit system for civil engineering and architectural machinery
JPS6056923B2 (en) * 1981-05-14 1985-12-12 日立建機株式会社 hydraulic circuit
JPS6056924B2 (en) * 1981-05-14 1985-12-12 日立建機株式会社 hydraulic circuit
DE3221160C2 (en) * 1982-06-04 1986-05-07 Mannesmann Rexroth GmbH, 8770 Lohr Control valve device consisting of two control blocks for several hydraulic drives, especially for mobile devices
US4545202A (en) * 1983-10-24 1985-10-08 Sundstrand Corporation Pressure-regulating system
IT1187892B (en) * 1986-02-04 1987-12-23 Chs Vickers Spa HYDRAULIC CONTROL CIRCUIT FOR WORKING BODIES OF EARTH-MOVING MACHINES WITH CENTRALIZED ACTUATOR BRAKING
US4787204A (en) * 1987-09-28 1988-11-29 J. I. Case Company Common relief valve
JP2511629Y2 (en) * 1988-05-16 1996-09-25 株式会社小松製作所 Hydraulic circuit
US5083428A (en) * 1988-06-17 1992-01-28 Kabushiki Kaisha Kobe Seiko Sho Fluid control system for power shovel
DE69015118T2 (en) * 1989-03-24 1995-05-04 Hitachi Construction Machinery Co., Ltd., Tokio/Tokyo VALVE ARRANGEMENT AND HYDRAULIC DRIVE SYSTEM.
KR940009219B1 (en) * 1989-03-30 1994-10-01 히다찌 겐끼 가부시기가이샤 Hydraulic driving apparatus of caterpillar vehicle
DE3919640C2 (en) * 1989-06-16 1996-10-02 Rexroth Mannesmann Gmbh Control valve device with two control blocks and pump control for several hydraulic drives
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US5448148A (en) * 1992-06-11 1995-09-05 Caterpillar Inc. Apparatus for positioning an excavator housing
AU708806B2 (en) * 1996-04-19 1999-08-12 Karl Obermoser Hydraulic ram pump
JP2000087904A (en) * 1998-09-14 2000-03-28 Komatsu Ltd Pressure oil supplying device
JP3943779B2 (en) * 1999-01-19 2007-07-11 日立建機株式会社 Hydraulic drive system for civil engineering and construction machinery
DE19911440C2 (en) * 1999-03-04 2002-09-19 Komatsu Mining Germany Gmbh Device and method for controlling a hydraulic system of a construction machine, in particular a hydraulic excavator
JP3859405B2 (en) * 1999-10-01 2006-12-20 カヤバ工業株式会社 Fail-safe circuit
US6357231B1 (en) * 2000-05-09 2002-03-19 Clark Equipment Company Hydraulic pump circuit for mini excavators
CA2374901C (en) 2002-03-07 2005-05-24 Leon's Mfg. Company Inc. Loader drive system
FI20030115A (en) * 2003-01-24 2004-07-25 Sandvik Tamrock Oy Hydraulic system for quarrying equipment and method for adjusting rock drill power
DE10336334B3 (en) * 2003-08-08 2005-08-04 Cnh Baumaschinen Gmbh Hydraulic control system for construction machinery, in particular for excavators
JP4151597B2 (en) * 2004-03-31 2008-09-17 コベルコ建機株式会社 Hydraulic control circuit and construction machinery
JP4541209B2 (en) * 2005-03-31 2010-09-08 ナブテスコ株式会社 Hydraulic circuit
KR100665113B1 (en) * 2005-12-09 2007-01-04 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 Haydraulic circuit for heavy equipment
CN102536932A (en) * 2012-01-11 2012-07-04 中联重科股份有限公司 Compression garbage truck and hydraulic system thereof
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JP6643913B2 (en) * 2016-02-16 2020-02-12 株式会社クボタ Hydraulic block
US9677577B1 (en) * 2016-12-09 2017-06-13 Ellicott Dredge Enterprises, Llc Dredge having modular hydraulic manifolds
IT201700107028A1 (en) * 2017-09-25 2019-03-25 Tesmec Spa HYDRAULIC EQUIPMENT FOR THE STRINGING OF CONDUCTORS FOR ELECTRICAL PRODUCTS

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US3535877A (en) * 1969-05-09 1970-10-27 Gen Signal Corp Three-pump hydraulic system incorporating an unloader

Also Published As

Publication number Publication date
GB1290247A (en) 1972-09-20
FR2065949A5 (en) 1971-08-06
US3720059A (en) 1973-03-13
DE1952034A1 (en) 1971-04-22
SE366098B (en) 1974-04-08

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