JPS6362608B2 - - Google Patents

Info

Publication number
JPS6362608B2
JPS6362608B2 JP56000770A JP77081A JPS6362608B2 JP S6362608 B2 JPS6362608 B2 JP S6362608B2 JP 56000770 A JP56000770 A JP 56000770A JP 77081 A JP77081 A JP 77081A JP S6362608 B2 JPS6362608 B2 JP S6362608B2
Authority
JP
Japan
Prior art keywords
valve
hydraulic
operating
servo valve
directional control
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
JP56000770A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57116840A (en
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 filed Critical
Priority to JP77081A priority Critical patent/JPS57116840A/ja
Publication of JPS57116840A publication Critical patent/JPS57116840A/ja
Publication of JPS6362608B2 publication Critical patent/JPS6362608B2/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)
JP77081A 1981-01-08 1981-01-08 Operating device for civil engineering work and construction machinery Granted JPS57116840A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP77081A JPS57116840A (en) 1981-01-08 1981-01-08 Operating device for civil engineering work and construction machinery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP77081A JPS57116840A (en) 1981-01-08 1981-01-08 Operating device for civil engineering work and construction machinery

Publications (2)

Publication Number Publication Date
JPS57116840A JPS57116840A (en) 1982-07-21
JPS6362608B2 true JPS6362608B2 (uk) 1988-12-02

Family

ID=11482923

Family Applications (1)

Application Number Title Priority Date Filing Date
JP77081A Granted JPS57116840A (en) 1981-01-08 1981-01-08 Operating device for civil engineering work and construction machinery

Country Status (1)

Country Link
JP (1) JPS57116840A (uk)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS612567U (ja) * 1984-06-07 1986-01-09 ハンド−ザ−工業株式会社 土工用車輌における油圧ポンプの合流装置
JPS612568U (ja) * 1984-06-12 1986-01-09 ハンド−ザ−工業株式会社 土工用車輌における油圧ポンプの合流装置
JP6377520B2 (ja) * 2014-12-26 2018-08-22 株式会社クボタ 作業機の油圧システム及びこの油圧システムを備えた作業機

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5513254B2 (uk) * 1976-12-29 1980-04-08

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54148004U (uk) * 1978-04-05 1979-10-15
JPS5513254U (uk) * 1978-07-10 1980-01-28

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5513254B2 (uk) * 1976-12-29 1980-04-08

Also Published As

Publication number Publication date
JPS57116840A (en) 1982-07-21

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