JPH0318015B2 - - Google Patents

Info

Publication number
JPH0318015B2
JPH0318015B2 JP8424083A JP8424083A JPH0318015B2 JP H0318015 B2 JPH0318015 B2 JP H0318015B2 JP 8424083 A JP8424083 A JP 8424083A JP 8424083 A JP8424083 A JP 8424083A JP H0318015 B2 JPH0318015 B2 JP H0318015B2
Authority
JP
Japan
Prior art keywords
center bypass
valve
oil passage
bypass oil
back pressure
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
JP8424083A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59211735A (ja
Inventor
Keizo Hayama
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.)
Kato Seisakusho Co Ltd
Original Assignee
Kato Seisakusho 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 Kato Seisakusho Co Ltd filed Critical Kato Seisakusho Co Ltd
Priority to JP8424083A priority Critical patent/JPS59211735A/ja
Publication of JPS59211735A publication Critical patent/JPS59211735A/ja
Publication of JPH0318015B2 publication Critical patent/JPH0318015B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
    • F02D29/04—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving 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
    • E02F9/2246—Control of prime movers, e.g. depending on the hydraulic load of work tools

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Operation Control Of Excavators (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
JP8424083A 1983-05-16 1983-05-16 ポンプ駆動エンジンの省エネルギ装置 Granted JPS59211735A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8424083A JPS59211735A (ja) 1983-05-16 1983-05-16 ポンプ駆動エンジンの省エネルギ装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8424083A JPS59211735A (ja) 1983-05-16 1983-05-16 ポンプ駆動エンジンの省エネルギ装置

Publications (2)

Publication Number Publication Date
JPS59211735A JPS59211735A (ja) 1984-11-30
JPH0318015B2 true JPH0318015B2 (en]) 1991-03-11

Family

ID=13824938

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8424083A Granted JPS59211735A (ja) 1983-05-16 1983-05-16 ポンプ駆動エンジンの省エネルギ装置

Country Status (1)

Country Link
JP (1) JPS59211735A (en])

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4729355A (en) * 1986-09-08 1988-03-08 Barnes Richard W Engine protection device
KR101106773B1 (ko) * 2009-06-05 2012-01-18 주식회사 포스코아이씨티 수처리 펌프 전력 절감장치

Also Published As

Publication number Publication date
JPS59211735A (ja) 1984-11-30

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