JPH0374292B2 - - Google Patents

Info

Publication number
JPH0374292B2
JPH0374292B2 JP60230594A JP23059485A JPH0374292B2 JP H0374292 B2 JPH0374292 B2 JP H0374292B2 JP 60230594 A JP60230594 A JP 60230594A JP 23059485 A JP23059485 A JP 23059485A JP H0374292 B2 JPH0374292 B2 JP H0374292B2
Authority
JP
Japan
Prior art keywords
switching valve
operating
oil
oil passage
hydraulic pump
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
JP60230594A
Other languages
English (en)
Japanese (ja)
Other versions
JPS62107124A (ja
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 JP23059485A priority Critical patent/JPS62107124A/ja
Publication of JPS62107124A publication Critical patent/JPS62107124A/ja
Publication of JPH0374292B2 publication Critical patent/JPH0374292B2/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)
JP23059485A 1985-10-15 1985-10-15 建設機械の油圧回路 Granted JPS62107124A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23059485A JPS62107124A (ja) 1985-10-15 1985-10-15 建設機械の油圧回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23059485A JPS62107124A (ja) 1985-10-15 1985-10-15 建設機械の油圧回路

Publications (2)

Publication Number Publication Date
JPS62107124A JPS62107124A (ja) 1987-05-18
JPH0374292B2 true JPH0374292B2 (US06277897-20010821-C00009.png) 1991-11-26

Family

ID=16910184

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23059485A Granted JPS62107124A (ja) 1985-10-15 1985-10-15 建設機械の油圧回路

Country Status (1)

Country Link
JP (1) JPS62107124A (US06277897-20010821-C00009.png)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0649632Y2 (ja) * 1987-06-10 1994-12-14 油谷重工株式会社 油圧ショベルの油圧回路
JP2504571Y2 (ja) * 1988-03-24 1996-07-10 油谷重工株式会社 油圧ショベルの油圧回路
JP2504572Y2 (ja) * 1988-04-11 1996-07-10 油谷重工株式会社 油圧ショベルの油圧回路
JPH0649633Y2 (ja) * 1988-06-07 1994-12-14 油谷重工株式会社 油圧ショベルの油圧回路
US5083428A (en) * 1988-06-17 1992-01-28 Kabushiki Kaisha Kobe Seiko Sho Fluid control system for power shovel
AU720849B2 (en) * 1996-03-28 2000-06-15 Clark Equipment Company Multifunction valve stack

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS604654B2 (ja) * 1977-04-07 1985-02-05 株式会社東芝 直流回路付電力変換装置の短絡保護装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0121052Y2 (US06277897-20010821-C00009.png) * 1981-06-10 1989-06-23
JPS604654U (ja) * 1983-06-23 1985-01-14 株式会社小松製作所 パワ−シヨベルの油圧回路装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS604654B2 (ja) * 1977-04-07 1985-02-05 株式会社東芝 直流回路付電力変換装置の短絡保護装置

Also Published As

Publication number Publication date
JPS62107124A (ja) 1987-05-18

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