JPH0143161B2 - - Google Patents

Info

Publication number
JPH0143161B2
JPH0143161B2 JP56215834A JP21583481A JPH0143161B2 JP H0143161 B2 JPH0143161 B2 JP H0143161B2 JP 56215834 A JP56215834 A JP 56215834A JP 21583481 A JP21583481 A JP 21583481A JP H0143161 B2 JPH0143161 B2 JP H0143161B2
Authority
JP
Japan
Prior art keywords
port
pump
oil
pressure
actuator
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
JP56215834A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58118305A (ja
Inventor
Toshio Ikeda
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.)
Daikin Industries Ltd
Original Assignee
Daikin Kogyo 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 Daikin Kogyo Co Ltd filed Critical Daikin Kogyo Co Ltd
Priority to JP56215834A priority Critical patent/JPS58118305A/ja
Publication of JPS58118305A publication Critical patent/JPS58118305A/ja
Publication of JPH0143161B2 publication Critical patent/JPH0143161B2/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)
JP56215834A 1981-12-28 1981-12-28 油圧回路 Granted JPS58118305A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56215834A JPS58118305A (ja) 1981-12-28 1981-12-28 油圧回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56215834A JPS58118305A (ja) 1981-12-28 1981-12-28 油圧回路

Publications (2)

Publication Number Publication Date
JPS58118305A JPS58118305A (ja) 1983-07-14
JPH0143161B2 true JPH0143161B2 (ko) 1989-09-19

Family

ID=16679031

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56215834A Granted JPS58118305A (ja) 1981-12-28 1981-12-28 油圧回路

Country Status (1)

Country Link
JP (1) JPS58118305A (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1037907A (ja) * 1996-07-26 1998-02-13 Komatsu Ltd 圧油供給装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53111601A (en) * 1977-03-10 1978-09-29 Sumitomo Heavy Industries Operating circuit for hydraulic excavator
JPS5620809A (en) * 1979-07-27 1981-02-26 Daikin Ind Ltd Fluid control system
JPS56142942A (en) * 1980-04-09 1981-11-07 Seirei Ind Co Ltd Hydraulic circuit apparatus in excavator
JPS56164206A (en) * 1980-05-02 1981-12-17 Bosch Gmbh Robert Hydraulic apparatus with two pumps

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53111601A (en) * 1977-03-10 1978-09-29 Sumitomo Heavy Industries Operating circuit for hydraulic excavator
JPS5620809A (en) * 1979-07-27 1981-02-26 Daikin Ind Ltd Fluid control system
JPS56142942A (en) * 1980-04-09 1981-11-07 Seirei Ind Co Ltd Hydraulic circuit apparatus in excavator
JPS56164206A (en) * 1980-05-02 1981-12-17 Bosch Gmbh Robert Hydraulic apparatus with two pumps

Also Published As

Publication number Publication date
JPS58118305A (ja) 1983-07-14

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