JPH0144921B2 - - Google Patents

Info

Publication number
JPH0144921B2
JPH0144921B2 JP20842882A JP20842882A JPH0144921B2 JP H0144921 B2 JPH0144921 B2 JP H0144921B2 JP 20842882 A JP20842882 A JP 20842882A JP 20842882 A JP20842882 A JP 20842882A JP H0144921 B2 JPH0144921 B2 JP H0144921B2
Authority
JP
Japan
Prior art keywords
actuator
hydraulic cylinder
hydraulic
variable displacement
switching
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
JP20842882A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5999102A (ja
Inventor
Shuichi Ichama
Yukio Aoyanagi
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 JP20842882A priority Critical patent/JPS5999102A/ja
Publication of JPS5999102A publication Critical patent/JPS5999102A/ja
Publication of JPH0144921B2 publication Critical patent/JPH0144921B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Shovels (AREA)
  • Fluid-Pressure Circuits (AREA)
JP20842882A 1982-11-30 1982-11-30 アクチユエ−タ駆動回路 Granted JPS5999102A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20842882A JPS5999102A (ja) 1982-11-30 1982-11-30 アクチユエ−タ駆動回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20842882A JPS5999102A (ja) 1982-11-30 1982-11-30 アクチユエ−タ駆動回路

Publications (2)

Publication Number Publication Date
JPS5999102A JPS5999102A (ja) 1984-06-07
JPH0144921B2 true JPH0144921B2 (enExample) 1989-10-02

Family

ID=16556050

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20842882A Granted JPS5999102A (ja) 1982-11-30 1982-11-30 アクチユエ−タ駆動回路

Country Status (1)

Country Link
JP (1) JPS5999102A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6738782B2 (ja) 2017-09-14 2020-08-12 日立建機株式会社 建設機械の駆動装置

Also Published As

Publication number Publication date
JPS5999102A (ja) 1984-06-07

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