JPH0411689B2 - - Google Patents

Info

Publication number
JPH0411689B2
JPH0411689B2 JP58137582A JP13758283A JPH0411689B2 JP H0411689 B2 JPH0411689 B2 JP H0411689B2 JP 58137582 A JP58137582 A JP 58137582A JP 13758283 A JP13758283 A JP 13758283A JP H0411689 B2 JPH0411689 B2 JP H0411689B2
Authority
JP
Japan
Prior art keywords
valve
pilot
switching
switching valve
valves
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
JP58137582A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6030733A (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 JP58137582A priority Critical patent/JPS6030733A/ja
Publication of JPS6030733A publication Critical patent/JPS6030733A/ja
Publication of JPH0411689B2 publication Critical patent/JPH0411689B2/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)
JP58137582A 1983-07-29 1983-07-29 油圧シヨベルの油圧回路 Granted JPS6030733A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58137582A JPS6030733A (ja) 1983-07-29 1983-07-29 油圧シヨベルの油圧回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58137582A JPS6030733A (ja) 1983-07-29 1983-07-29 油圧シヨベルの油圧回路

Publications (2)

Publication Number Publication Date
JPS6030733A JPS6030733A (ja) 1985-02-16
JPH0411689B2 true JPH0411689B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-03-02

Family

ID=15202081

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58137582A Granted JPS6030733A (ja) 1983-07-29 1983-07-29 油圧シヨベルの油圧回路

Country Status (1)

Country Link
JP (1) JPS6030733A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62133759U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1986-02-13 1987-08-22

Also Published As

Publication number Publication date
JPS6030733A (ja) 1985-02-16

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