JPH0314971B2 - - Google Patents

Info

Publication number
JPH0314971B2
JPH0314971B2 JP57095282A JP9528282A JPH0314971B2 JP H0314971 B2 JPH0314971 B2 JP H0314971B2 JP 57095282 A JP57095282 A JP 57095282A JP 9528282 A JP9528282 A JP 9528282A JP H0314971 B2 JPH0314971 B2 JP H0314971B2
Authority
JP
Japan
Prior art keywords
valve
valves
switching
hydraulic
directional
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 - Lifetime
Application number
JP57095282A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58213929A (ja
Inventor
Takeshi Furuichi
Kenzo Yanagibashi
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 JP57095282A priority Critical patent/JPS58213929A/ja
Publication of JPS58213929A publication Critical patent/JPS58213929A/ja
Publication of JPH0314971B2 publication Critical patent/JPH0314971B2/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
    • E02F9/2278—Hydraulic circuits
    • E02F9/2292—Systems with two or more pumps
    • 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
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
JP57095282A 1982-06-03 1982-06-03 建設機械の油圧回路 Granted JPS58213929A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57095282A JPS58213929A (ja) 1982-06-03 1982-06-03 建設機械の油圧回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57095282A JPS58213929A (ja) 1982-06-03 1982-06-03 建設機械の油圧回路

Publications (2)

Publication Number Publication Date
JPS58213929A JPS58213929A (ja) 1983-12-13
JPH0314971B2 true JPH0314971B2 (enExample) 1991-02-28

Family

ID=14133414

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57095282A Granted JPS58213929A (ja) 1982-06-03 1982-06-03 建設機械の油圧回路

Country Status (1)

Country Link
JP (1) JPS58213929A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT516181B1 (de) 2014-10-08 2016-03-15 Weber Hydraulik Gmbh Hydraulikaggregat

Also Published As

Publication number Publication date
JPS58213929A (ja) 1983-12-13

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