JPS6238499B2 - - Google Patents

Info

Publication number
JPS6238499B2
JPS6238499B2 JP55068944A JP6894480A JPS6238499B2 JP S6238499 B2 JPS6238499 B2 JP S6238499B2 JP 55068944 A JP55068944 A JP 55068944A JP 6894480 A JP6894480 A JP 6894480A JP S6238499 B2 JPS6238499 B2 JP S6238499B2
Authority
JP
Japan
Prior art keywords
pressure oil
arm
circuit
pump
hydraulic
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
JP55068944A
Other languages
English (en)
Japanese (ja)
Other versions
JPS56167035A (en
Inventor
Toichi Hirata
Toshimichi Ikeda
Seiji Tamura
Kuniaki Yoshida
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 JP6894480A priority Critical patent/JPS56167035A/ja
Publication of JPS56167035A publication Critical patent/JPS56167035A/ja
Publication of JPS6238499B2 publication Critical patent/JPS6238499B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
JP6894480A 1980-05-26 1980-05-26 Hydraulic circuit for hydraulic power shovel Granted JPS56167035A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6894480A JPS56167035A (en) 1980-05-26 1980-05-26 Hydraulic circuit for hydraulic power shovel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6894480A JPS56167035A (en) 1980-05-26 1980-05-26 Hydraulic circuit for hydraulic power shovel

Publications (2)

Publication Number Publication Date
JPS56167035A JPS56167035A (en) 1981-12-22
JPS6238499B2 true JPS6238499B2 (enrdf_load_stackoverflow) 1987-08-18

Family

ID=13388278

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6894480A Granted JPS56167035A (en) 1980-05-26 1980-05-26 Hydraulic circuit for hydraulic power shovel

Country Status (1)

Country Link
JP (1) JPS56167035A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58137104U (ja) * 1982-03-10 1983-09-14 東芝機械株式会社 複合制御弁
JP7332383B2 (ja) * 2019-07-31 2023-08-23 ナブテスコ株式会社 流体制御弁、流体システムおよび建設機械

Also Published As

Publication number Publication date
JPS56167035A (en) 1981-12-22

Similar Documents

Publication Publication Date Title
CN87106589A (zh) 液压工程机械的液压回路
JPH0216416B2 (enrdf_load_stackoverflow)
JPS61142235A (ja) 油圧ショベル等の建設機械の油圧回路
JPS6238499B2 (enrdf_load_stackoverflow)
JPH10102546A (ja) 建設機械の油圧回路
JPH0374292B2 (enrdf_load_stackoverflow)
JP2635206B2 (ja) 掘削作業車の油圧回路構造
JP3061529B2 (ja) ローダフロント付き油圧ショベルの油圧駆動装置
JPH116174A (ja) 建設車両のアクチュエータ作動回路
JPS5919214B2 (ja) 油圧ショベルの油圧回路
JPH06137309A (ja) 可変容量型油圧ポンプ制御装置
JP7379307B2 (ja) 作業機の油圧システム
JPH0143098B2 (enrdf_load_stackoverflow)
JPS6253656B2 (enrdf_load_stackoverflow)
JPH0464378B2 (enrdf_load_stackoverflow)
JPH09165791A (ja) 作業機械の油圧回路
JPH0128176B2 (enrdf_load_stackoverflow)
JPH09165796A (ja) 作業機械の油圧回路
JPH0424491B2 (enrdf_load_stackoverflow)
JPS60263710A (ja) 油圧機械の油圧回路
JPS5935668Y2 (ja) 油圧ショベルの油圧回路
JPH0133612B2 (enrdf_load_stackoverflow)
JPS6011182B2 (ja) 油圧ショベルの油圧回路
JPS5830855Y2 (ja) 油圧ショベルの油圧回路
JPS6340531Y2 (enrdf_load_stackoverflow)