JPH0154561B2 - - Google Patents

Info

Publication number
JPH0154561B2
JPH0154561B2 JP18830683A JP18830683A JPH0154561B2 JP H0154561 B2 JPH0154561 B2 JP H0154561B2 JP 18830683 A JP18830683 A JP 18830683A JP 18830683 A JP18830683 A JP 18830683A JP H0154561 B2 JPH0154561 B2 JP H0154561B2
Authority
JP
Japan
Prior art keywords
pressure
valve
circuit
operation command
pressure difference
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
Application number
JP18830683A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6081502A (ja
Inventor
Koichi Aoyanagi
Shuichi Ichama
Masaki Kanehara
Keiichiro Uno
Tomohiko Yasuda
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.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery Co Ltd
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 Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP18830683A priority Critical patent/JPS6081502A/ja
Publication of JPS6081502A publication Critical patent/JPS6081502A/ja
Publication of JPH0154561B2 publication Critical patent/JPH0154561B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Fluid-Pressure Circuits (AREA)
  • Control Of Fluid Gearings (AREA)
JP18830683A 1983-10-11 1983-10-11 油圧アクチユエ−タの閉回路駆動装置 Granted JPS6081502A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18830683A JPS6081502A (ja) 1983-10-11 1983-10-11 油圧アクチユエ−タの閉回路駆動装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18830683A JPS6081502A (ja) 1983-10-11 1983-10-11 油圧アクチユエ−タの閉回路駆動装置

Publications (2)

Publication Number Publication Date
JPS6081502A JPS6081502A (ja) 1985-05-09
JPH0154561B2 true JPH0154561B2 (US06649357-20031118-C00005.png) 1989-11-20

Family

ID=16221300

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18830683A Granted JPS6081502A (ja) 1983-10-11 1983-10-11 油圧アクチユエ−タの閉回路駆動装置

Country Status (1)

Country Link
JP (1) JPS6081502A (US06649357-20031118-C00005.png)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002004820A1 (fr) * 2000-07-10 2002-01-17 Kobelco Construction Machinery Co., Ltd. Circuit de verin hydraulique
DE10303360A1 (de) * 2003-01-29 2004-08-19 O & K Orenstein & Koppel Gmbh Hydrauliksystem für verdrängergesteuerte Linearantriebe
US7111458B2 (en) * 2003-07-11 2006-09-26 Sauer-Danfoss Inc. Electrical loop flushing system
US7325398B2 (en) * 2004-03-05 2008-02-05 Deere & Company Closed circuit energy recovery system for a work implement
JP4565871B2 (ja) * 2004-03-29 2010-10-20 株式会社東晃製作所 油圧シリンダ装置
FR2873175B1 (fr) * 2004-07-16 2006-10-20 Poclain Hydraulics Ind Soc Par Circuit hydraulique comprenant un selecteur multifonction
US9683588B2 (en) * 2012-01-31 2017-06-20 Hitachi Construction Machinery Co., Ltd. Hydraulic closed circuit system
JP7393250B2 (ja) * 2020-02-28 2023-12-06 カヤバ株式会社 流体圧駆動ユニット

Also Published As

Publication number Publication date
JPS6081502A (ja) 1985-05-09

Similar Documents

Publication Publication Date Title
EP2071195B1 (en) Hydraulic circuit with load holding valves operated by external pilot pressure
JP2005265002A (ja) 作業機械の油圧制御回路
EP0059406A1 (en) Flushing valve system in closed circuit hydrostatic power transmission
US4464898A (en) Hydraulic power system
EP0068197B1 (en) Locking apparatus of inertial mass drive hydraulic circuit system
JPH0154561B2 (US06649357-20031118-C00005.png)
US5201803A (en) Hydraulic system for a vehicle
US5285643A (en) Hydraulic drive system for civil-engineering and construction machine
JP3915622B2 (ja) 油圧アクチュエータ回路の負荷保持装置
JP4685542B2 (ja) 油圧駆動装置
JPS63106404A (ja) 慣性体駆動用油圧装置
JP4344712B2 (ja) 油圧駆動装置
EP1172325A2 (en) Control device for hydraulic drive winch
JPH1130204A (ja) 油圧モータの制御装置
JP2690353B2 (ja) ロードセンシングシステムを用いた油圧回路のメイクアップ装置
JPS6314230B2 (US06649357-20031118-C00005.png)
US4271749A (en) Reduced back pressure, anti-cavitation valve system
JPH08100805A (ja) 油圧制御装置
JP2927308B2 (ja) 油圧制御回路
JP2555499B2 (ja) 土木・建設機械の油圧駆動装置
JPH03290532A (ja) 土木・建設機械の油圧駆動装置
JPH0337642B2 (US06649357-20031118-C00005.png)
JPS63106405A (ja) 慣性体駆動用油圧装置の制御方法
JPH0210321Y2 (US06649357-20031118-C00005.png)
JPH0118690Y2 (US06649357-20031118-C00005.png)