JPS6311494B2 - - Google Patents

Info

Publication number
JPS6311494B2
JPS6311494B2 JP56176125A JP17612581A JPS6311494B2 JP S6311494 B2 JPS6311494 B2 JP S6311494B2 JP 56176125 A JP56176125 A JP 56176125A JP 17612581 A JP17612581 A JP 17612581A JP S6311494 B2 JPS6311494 B2 JP S6311494B2
Authority
JP
Japan
Prior art keywords
relief valve
valve
circuit
main control
control valve
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
JP56176125A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5880033A (ja
Inventor
Masahiro Takahashi
Hideaki Yoshimatsu
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP17612581A priority Critical patent/JPS5880033A/ja
Publication of JPS5880033A publication Critical patent/JPS5880033A/ja
Publication of JPS6311494B2 publication Critical patent/JPS6311494B2/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)
JP17612581A 1981-11-02 1981-11-02 油圧シヨベルの油圧回路 Granted JPS5880033A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17612581A JPS5880033A (ja) 1981-11-02 1981-11-02 油圧シヨベルの油圧回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17612581A JPS5880033A (ja) 1981-11-02 1981-11-02 油圧シヨベルの油圧回路

Publications (2)

Publication Number Publication Date
JPS5880033A JPS5880033A (ja) 1983-05-14
JPS6311494B2 true JPS6311494B2 (enrdf_load_stackoverflow) 1988-03-14

Family

ID=16008105

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17612581A Granted JPS5880033A (ja) 1981-11-02 1981-11-02 油圧シヨベルの油圧回路

Country Status (1)

Country Link
JP (1) JPS5880033A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62169057U (enrdf_load_stackoverflow) * 1986-04-17 1987-10-27
WO1990001586A1 (en) * 1988-08-02 1990-02-22 Kabushiki Kaisha Komatsu Seisakusho Method and apparatus for controlling working units of power shovel

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE792618A (fr) * 1971-12-13 1973-06-12 Caterpillar Tractor Co Ensemble de valves de commande hydrauliques.
US4024797A (en) * 1975-10-28 1977-05-24 Caterpillar Tractor Co. Spring centered balanced resolver valve
JPS5842524Y2 (ja) * 1979-05-18 1983-09-27 株式会社小松製作所 上部旋回式油圧掘削機の油圧回路

Also Published As

Publication number Publication date
JPS5880033A (ja) 1983-05-14

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