JPS6221095B2 - - Google Patents

Info

Publication number
JPS6221095B2
JPS6221095B2 JP55047746A JP4774680A JPS6221095B2 JP S6221095 B2 JPS6221095 B2 JP S6221095B2 JP 55047746 A JP55047746 A JP 55047746A JP 4774680 A JP4774680 A JP 4774680A JP S6221095 B2 JPS6221095 B2 JP S6221095B2
Authority
JP
Japan
Prior art keywords
hydraulic
switching valve
arm
hydraulic cylinder
hydraulic motor
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
JP55047746A
Other languages
English (en)
Japanese (ja)
Other versions
JPS56142942A (en
Inventor
Yoichi Origuchi
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.)
Yanmar Agribusiness Co Ltd
Original Assignee
Seirei 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 Seirei Industry Co Ltd filed Critical Seirei Industry Co Ltd
Priority to JP4774680A priority Critical patent/JPS56142942A/ja
Publication of JPS56142942A publication Critical patent/JPS56142942A/ja
Publication of JPS6221095B2 publication Critical patent/JPS6221095B2/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)
JP4774680A 1980-04-09 1980-04-09 Hydraulic circuit apparatus in excavator Granted JPS56142942A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4774680A JPS56142942A (en) 1980-04-09 1980-04-09 Hydraulic circuit apparatus in excavator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4774680A JPS56142942A (en) 1980-04-09 1980-04-09 Hydraulic circuit apparatus in excavator

Publications (2)

Publication Number Publication Date
JPS56142942A JPS56142942A (en) 1981-11-07
JPS6221095B2 true JPS6221095B2 (US06826419-20041130-M00005.png) 1987-05-11

Family

ID=12783907

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4774680A Granted JPS56142942A (en) 1980-04-09 1980-04-09 Hydraulic circuit apparatus in excavator

Country Status (1)

Country Link
JP (1) JPS56142942A (US06826419-20041130-M00005.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01125387U (US06826419-20041130-M00005.png) * 1988-02-18 1989-08-25

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58118305A (ja) * 1981-12-28 1983-07-14 Daikin Ind Ltd 油圧回路
JPS58127206U (ja) * 1982-02-23 1983-08-29 株式会社ナブコ 圧力流体回路
JPS59106705A (ja) * 1982-12-13 1984-06-20 Sumitomo Heavy Ind Ltd 油圧シヨベル等の油圧回路

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01125387U (US06826419-20041130-M00005.png) * 1988-02-18 1989-08-25

Also Published As

Publication number Publication date
JPS56142942A (en) 1981-11-07

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