JPH047414B2 - - Google Patents

Info

Publication number
JPH047414B2
JPH047414B2 JP59042958A JP4295884A JPH047414B2 JP H047414 B2 JPH047414 B2 JP H047414B2 JP 59042958 A JP59042958 A JP 59042958A JP 4295884 A JP4295884 A JP 4295884A JP H047414 B2 JPH047414 B2 JP H047414B2
Authority
JP
Japan
Prior art keywords
valve
directional
switching valve
pressure oil
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 - Lifetime
Application number
JP59042958A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60188543A (ja
Inventor
Masaharu Kawamoto
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.)
Sumitomo Heavy Industries Ltd
Original Assignee
Sumitomo Heavy Industries 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 Sumitomo Heavy Industries Ltd filed Critical Sumitomo Heavy Industries Ltd
Priority to JP59042958A priority Critical patent/JPS60188543A/ja
Publication of JPS60188543A publication Critical patent/JPS60188543A/ja
Publication of JPH047414B2 publication Critical patent/JPH047414B2/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
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
    • 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

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)
JP59042958A 1984-03-08 1984-03-08 油圧シヨベル等建設機械の油圧回路 Granted JPS60188543A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59042958A JPS60188543A (ja) 1984-03-08 1984-03-08 油圧シヨベル等建設機械の油圧回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59042958A JPS60188543A (ja) 1984-03-08 1984-03-08 油圧シヨベル等建設機械の油圧回路

Publications (2)

Publication Number Publication Date
JPS60188543A JPS60188543A (ja) 1985-09-26
JPH047414B2 true JPH047414B2 (US08066781-20111129-C00013.png) 1992-02-10

Family

ID=12650531

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59042958A Granted JPS60188543A (ja) 1984-03-08 1984-03-08 油圧シヨベル等建設機械の油圧回路

Country Status (1)

Country Link
JP (1) JPS60188543A (US08066781-20111129-C00013.png)

Also Published As

Publication number Publication date
JPS60188543A (ja) 1985-09-26

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