JPH0442509B2 - - Google Patents

Info

Publication number
JPH0442509B2
JPH0442509B2 JP59078019A JP7801984A JPH0442509B2 JP H0442509 B2 JPH0442509 B2 JP H0442509B2 JP 59078019 A JP59078019 A JP 59078019A JP 7801984 A JP7801984 A JP 7801984A JP H0442509 B2 JPH0442509 B2 JP H0442509B2
Authority
JP
Japan
Prior art keywords
valve
pilot
pressure
merging
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
JP59078019A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60223540A (ja
Inventor
Masahiko Oozeki
Hideomi Watanabe
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.)
KYB Corp
Original Assignee
Kayaba Industry 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 Kayaba Industry Co Ltd filed Critical Kayaba Industry Co Ltd
Priority to JP59078019A priority Critical patent/JPS60223540A/ja
Publication of JPS60223540A publication Critical patent/JPS60223540A/ja
Publication of JPH0442509B2 publication Critical patent/JPH0442509B2/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)
JP59078019A 1984-04-18 1984-04-18 建設車両の合流回路 Granted JPS60223540A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59078019A JPS60223540A (ja) 1984-04-18 1984-04-18 建設車両の合流回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59078019A JPS60223540A (ja) 1984-04-18 1984-04-18 建設車両の合流回路

Publications (2)

Publication Number Publication Date
JPS60223540A JPS60223540A (ja) 1985-11-08
JPH0442509B2 true JPH0442509B2 (ko) 1992-07-13

Family

ID=13650084

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59078019A Granted JPS60223540A (ja) 1984-04-18 1984-04-18 建設車両の合流回路

Country Status (1)

Country Link
JP (1) JPS60223540A (ko)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102094858A (zh) * 2011-01-18 2011-06-15 上海三一科技有限公司 一种可提供多种流量工况的变量双泵液压系统
JP7083326B2 (ja) * 2019-09-30 2022-06-10 日立建機株式会社 建設機械

Also Published As

Publication number Publication date
JPS60223540A (ja) 1985-11-08

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees