JPH0363613B2 - - Google Patents

Info

Publication number
JPH0363613B2
JPH0363613B2 JP58128728A JP12872883A JPH0363613B2 JP H0363613 B2 JPH0363613 B2 JP H0363613B2 JP 58128728 A JP58128728 A JP 58128728A JP 12872883 A JP12872883 A JP 12872883A JP H0363613 B2 JPH0363613 B2 JP H0363613B2
Authority
JP
Japan
Prior art keywords
switching valve
hydraulic
directional
hydraulic pump
arm
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
JP58128728A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6023527A (ja
Inventor
Seiji Tamura
Katsutoshi Umemura
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.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery 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 Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP58128728A priority Critical patent/JPS6023527A/ja
Publication of JPS6023527A publication Critical patent/JPS6023527A/ja
Publication of JPH0363613B2 publication Critical patent/JPH0363613B2/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)
JP58128728A 1983-07-16 1983-07-16 油圧ホイ−ルシヨベルの油圧回路 Granted JPS6023527A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58128728A JPS6023527A (ja) 1983-07-16 1983-07-16 油圧ホイ−ルシヨベルの油圧回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58128728A JPS6023527A (ja) 1983-07-16 1983-07-16 油圧ホイ−ルシヨベルの油圧回路

Publications (2)

Publication Number Publication Date
JPS6023527A JPS6023527A (ja) 1985-02-06
JPH0363613B2 true JPH0363613B2 (enExample) 1991-10-01

Family

ID=14991973

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58128728A Granted JPS6023527A (ja) 1983-07-16 1983-07-16 油圧ホイ−ルシヨベルの油圧回路

Country Status (1)

Country Link
JP (1) JPS6023527A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106460880B (zh) * 2014-12-16 2018-04-24 Ｋｙｂ株式会社 建筑机械的流体压控制装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5926084Y2 (ja) * 1980-04-26 1984-07-30 三菱重工業株式会社 ２ポンプ式油圧回路
JPS5883737A (ja) * 1981-11-14 1983-05-19 Hitachi Constr Mach Co Ltd 土木・建設機械の油圧回路

Also Published As

Publication number Publication date
JPS6023527A (ja) 1985-02-06

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