JPS61290217A - 建設機械の作動油圧回路 - Google Patents

建設機械の作動油圧回路

Info

Publication number
JPS61290217A
JPS61290217A JP60130714A JP13071485A JPS61290217A JP S61290217 A JPS61290217 A JP S61290217A JP 60130714 A JP60130714 A JP 60130714A JP 13071485 A JP13071485 A JP 13071485A JP S61290217 A JPS61290217 A JP S61290217A
Authority
JP
Japan
Prior art keywords
oil
hydraulic
valve
pump
oil temperature
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
JP60130714A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0432246B2 (enFirst
Inventor
Sotaro Tanaka
壮太郎 田中
Kazuhiko Otsubo
大坪 和彦
Kimio Katsuki
勝木 公雄
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 JP60130714A priority Critical patent/JPS61290217A/ja
Publication of JPS61290217A publication Critical patent/JPS61290217A/ja
Publication of JPH0432246B2 publication Critical patent/JPH0432246B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
JP60130714A 1985-06-18 1985-06-18 建設機械の作動油圧回路 Granted JPS61290217A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60130714A JPS61290217A (ja) 1985-06-18 1985-06-18 建設機械の作動油圧回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60130714A JPS61290217A (ja) 1985-06-18 1985-06-18 建設機械の作動油圧回路

Publications (2)

Publication Number Publication Date
JPS61290217A true JPS61290217A (ja) 1986-12-20
JPH0432246B2 JPH0432246B2 (enFirst) 1992-05-28

Family

ID=15040864

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60130714A Granted JPS61290217A (ja) 1985-06-18 1985-06-18 建設機械の作動油圧回路

Country Status (1)

Country Link
JP (1) JPS61290217A (enFirst)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02217529A (ja) * 1989-02-18 1990-08-30 Kubota Ltd 全旋回型作業車の油圧回路構造
CN106884455A (zh) * 2017-03-08 2017-06-23 青岛雷沃挖掘机有限公司 工况自适应液压回路及挖掘机
CN107268704A (zh) * 2017-08-08 2017-10-20 济宁山重新能源有限公司 一种新型节能液压挖掘机
JP2023183040A (ja) * 2022-06-15 2023-12-27 キャタピラー エス エー アール エル 建設機械の油圧回路

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02217529A (ja) * 1989-02-18 1990-08-30 Kubota Ltd 全旋回型作業車の油圧回路構造
CN106884455A (zh) * 2017-03-08 2017-06-23 青岛雷沃挖掘机有限公司 工况自适应液压回路及挖掘机
CN107268704A (zh) * 2017-08-08 2017-10-20 济宁山重新能源有限公司 一种新型节能液压挖掘机
CN107268704B (zh) * 2017-08-08 2023-08-29 济宁山重新能源有限公司 一种新型节能液压挖掘机
JP2023183040A (ja) * 2022-06-15 2023-12-27 キャタピラー エス エー アール エル 建設機械の油圧回路

Also Published As

Publication number Publication date
JPH0432246B2 (enFirst) 1992-05-28

Similar Documents

Publication Publication Date Title
KR101588335B1 (ko) 유압제어 시스템
EP0402474A1 (en) Service valve circuit in a hydraulic excavator
JP2009097722A (ja) 建設機械用油圧回路
CN108799234B (zh) 一种循环缓冲流量控制液压阀
US3658436A (en) Water turbine operation method and system
US3932992A (en) Pressurized fluid supply power control means
CN110950244B (zh) 伺服油缸液压控制系统
JPS61290217A (ja) 建設機械の作動油圧回路
US4205591A (en) Multiple speed hoisting system with pressure protection and load control
US2989260A (en) Hydraulic drive tape handling system
JP2003004005A (ja) 建設機械の油圧制御回路
US4474528A (en) Water wheel operation control method and apparatus therefor
JP2016169795A (ja) 建設機械
JPH06147205A (ja) 油圧作業機の油圧回路
JP2003269401A (ja) 油圧制御回路における冷却システム
CN114396096A (zh) 散热液压系统及挖掘机
CN109058453B (zh) 一种实时自动调节换油量的液传动控制方法
CN116240949B (zh) 一种挖泥机开式液压系统
JP3767918B2 (ja) ポンプ水車の入口弁制御装置
JPH09119404A (ja) 冷却ファンの油圧駆動装置
JP2791555B2 (ja) 油圧回路のウオーミングアツプ装置
JPH11351147A (ja) 油圧駆動発電機の制御装置
CN114688113B (zh) 起重机的定量泵液压系统及其控制方法和起重机
JPS603373Y2 (ja) クレ−ンの作動油冷却用モ−タ駆動回路
JPH0124407Y2 (enFirst)

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees