JPS56139319A - Liquid pressure circuit for construction machine - Google Patents

Liquid pressure circuit for construction machine

Info

Publication number
JPS56139319A
JPS56139319A JP3911680A JP3911680A JPS56139319A JP S56139319 A JPS56139319 A JP S56139319A JP 3911680 A JP3911680 A JP 3911680A JP 3911680 A JP3911680 A JP 3911680A JP S56139319 A JPS56139319 A JP S56139319A
Authority
JP
Japan
Prior art keywords
discharge
valve
directed
pump
during
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
JP3911680A
Other languages
English (en)
Japanese (ja)
Other versions
JPS623010B2 (enrdf_load_stackoverflow
Inventor
Tadao Karakama
Kazuo Uehara
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP3911680A priority Critical patent/JPS56139319A/ja
Publication of JPS56139319A publication Critical patent/JPS56139319A/ja
Publication of JPS623010B2 publication Critical patent/JPS623010B2/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)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
  • Fluid-Pressure Circuits (AREA)
JP3911680A 1980-03-28 1980-03-28 Liquid pressure circuit for construction machine Granted JPS56139319A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3911680A JPS56139319A (en) 1980-03-28 1980-03-28 Liquid pressure circuit for construction machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3911680A JPS56139319A (en) 1980-03-28 1980-03-28 Liquid pressure circuit for construction machine

Publications (2)

Publication Number Publication Date
JPS56139319A true JPS56139319A (en) 1981-10-30
JPS623010B2 JPS623010B2 (enrdf_load_stackoverflow) 1987-01-22

Family

ID=12544104

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3911680A Granted JPS56139319A (en) 1980-03-28 1980-03-28 Liquid pressure circuit for construction machine

Country Status (1)

Country Link
JP (1) JPS56139319A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0879921A4 (enrdf_load_stackoverflow) * 1995-05-17 1998-11-25
CN110630571A (zh) * 2019-09-26 2019-12-31 湖北航天技术研究院特种车辆技术中心 一种对中控制阀组

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0879921A4 (enrdf_load_stackoverflow) * 1995-05-17 1998-11-25
CN110630571A (zh) * 2019-09-26 2019-12-31 湖北航天技术研究院特种车辆技术中心 一种对中控制阀组
CN110630571B (zh) * 2019-09-26 2021-04-13 湖北航天技术研究院特种车辆技术中心 一种对中控制阀组

Also Published As

Publication number Publication date
JPS623010B2 (enrdf_load_stackoverflow) 1987-01-22

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