JPS61142233A - 油圧ショベル等の建設機械の油圧回路 - Google Patents

油圧ショベル等の建設機械の油圧回路

Info

Publication number
JPS61142233A
JPS61142233A JP59264597A JP26459784A JPS61142233A JP S61142233 A JPS61142233 A JP S61142233A JP 59264597 A JP59264597 A JP 59264597A JP 26459784 A JP26459784 A JP 26459784A JP S61142233 A JPS61142233 A JP S61142233A
Authority
JP
Japan
Prior art keywords
directional
valve
valves
pressure oil
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.)
Granted
Application number
JP59264597A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0414214B2 (enrdf_load_stackoverflow
Inventor
Masaharu Kawamoto
川本　正治
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.)
Sumitomo Heavy Industries Ltd
Original Assignee
Sumitomo Heavy Industries 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 Sumitomo Heavy Industries Ltd filed Critical Sumitomo Heavy Industries Ltd
Priority to JP59264597A priority Critical patent/JPS61142233A/ja
Publication of JPS61142233A publication Critical patent/JPS61142233A/ja
Publication of JPH0414214B2 publication Critical patent/JPH0414214B2/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
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
    • 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

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)
JP59264597A 1984-12-17 1984-12-17 油圧ショベル等の建設機械の油圧回路 Granted JPS61142233A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59264597A JPS61142233A (ja) 1984-12-17 1984-12-17 油圧ショベル等の建設機械の油圧回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59264597A JPS61142233A (ja) 1984-12-17 1984-12-17 油圧ショベル等の建設機械の油圧回路

Publications (2)

Publication Number Publication Date
JPS61142233A true JPS61142233A (ja) 1986-06-30
JPH0414214B2 JPH0414214B2 (enrdf_load_stackoverflow) 1992-03-12

Family

ID=17405516

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59264597A Granted JPS61142233A (ja) 1984-12-17 1984-12-17 油圧ショベル等の建設機械の油圧回路

Country Status (1)

Country Link
JP (1) JPS61142233A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01320302A (ja) * 1988-06-17 1989-12-26 Yutani Heavy Ind Ltd 油圧ショベルの油圧回路

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01320302A (ja) * 1988-06-17 1989-12-26 Yutani Heavy Ind Ltd 油圧ショベルの油圧回路

Also Published As

Publication number Publication date
JPH0414214B2 (enrdf_load_stackoverflow) 1992-03-12

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