JPH0124921B2 - - Google Patents

Info

Publication number
JPH0124921B2
JPH0124921B2 JP56027298A JP2729881A JPH0124921B2 JP H0124921 B2 JPH0124921 B2 JP H0124921B2 JP 56027298 A JP56027298 A JP 56027298A JP 2729881 A JP2729881 A JP 2729881A JP H0124921 B2 JPH0124921 B2 JP H0124921B2
Authority
JP
Japan
Prior art keywords
pump
swash plate
discharge amount
hydraulic
piston
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
JP56027298A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57143180A (en
Inventor
Eiki Izumi
Hiroshi Watanabe
Yukio Aoyanagi
Kazuo Pponma
Yoshio Nakajima
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 JP56027298A priority Critical patent/JPS57143180A/ja
Publication of JPS57143180A publication Critical patent/JPS57143180A/ja
Publication of JPH0124921B2 publication Critical patent/JPH0124921B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/002—Hydraulic systems to change the pump delivery

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
JP56027298A 1981-02-26 1981-02-26 Control method of variable displacement oil hydraulic pump Granted JPS57143180A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56027298A JPS57143180A (en) 1981-02-26 1981-02-26 Control method of variable displacement oil hydraulic pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56027298A JPS57143180A (en) 1981-02-26 1981-02-26 Control method of variable displacement oil hydraulic pump

Publications (2)

Publication Number Publication Date
JPS57143180A JPS57143180A (en) 1982-09-04
JPH0124921B2 true JPH0124921B2 (en]) 1989-05-15

Family

ID=12217176

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56027298A Granted JPS57143180A (en) 1981-02-26 1981-02-26 Control method of variable displacement oil hydraulic pump

Country Status (1)

Country Link
JP (1) JPS57143180A (en])

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR900002409B1 (ko) * 1986-01-11 1990-04-14 히다찌 겡끼 가부시끼가이샤 유압 구동장치의 펌프 입력마력 제어 시스템
DE19645699A1 (de) * 1996-11-06 1998-05-07 Schloemann Siemag Ag Hydrostatisches Getriebe
JP6335093B2 (ja) * 2014-10-10 2018-05-30 川崎重工業株式会社 建設機械の油圧駆動システム

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5144301A (ja) * 1974-10-09 1976-04-15 Hitachi Ltd Kahentoshitsugatahonpuno toshitsuryoseigyoyoyuatsukairo
JPS5727986B2 (en]) * 1974-11-27 1982-06-14
JPS5922074B2 (ja) * 1975-12-20 1984-05-24 カブシキガイシヤ エバラセイサクシヨ 可変容量形油圧ポンプおよび該油圧ポンプを用いた油圧装置
JPS5916549Y2 (ja) * 1977-01-24 1984-05-15 株式会社小松製作所 可変容量型油圧ポンプの中立位置調整装置

Also Published As

Publication number Publication date
JPS57143180A (en) 1982-09-04

Similar Documents

Publication Publication Date Title
US5974796A (en) Hydraulic circuit system for hydraulic working machine
EP0549883B1 (en) Control system for hydraulic pumps of the variable displacement type
CN114270055A (zh) 建筑机械的油压系统
JPS63195402A (ja) 油圧制御装置
JPH0124921B2 (en])
JPH10281073A (ja) ポンプの流量制御装置
JPS6230308B2 (en])
JP2003206902A (ja) 流体システムの不感帯を制御する方法
JPH10267004A (ja) 流体制御方法およびその装置
JP2933273B2 (ja) 可変容量形ポンプの流量制御装置
JP3148289B2 (ja) 可変容量形モータの容量制御装置
CN111989497A (zh) 多控制阀单元及油压挖掘机用油压驱动装置
JP4113414B2 (ja) ポンプ装置
JPH0514112B2 (en])
JP3099538B2 (ja) 方向制御弁の切換制御装置
JPH0735161Y2 (ja) 油圧走行車両等の液圧ポンプ制御装置
JP2837173B2 (ja) 制御弁装置
JPH0986492A (ja) フィンスタビライザの制御油圧回路
JP2801583B2 (ja) 可変容量形ポンプの流量制御装置
JP2652303B2 (ja) ２段階カットオフ機能を有する可変容量形油圧ポンプの馬力制御装置
JP2857470B2 (ja) 手動・パイロット操作併用型切換弁
JPS5843537B2 (ja) 油圧シヨベルの油圧制御装置
JPH0130633Y2 (en])
JP2868746B2 (ja) 可変容量形油圧モータの油圧駆動装置
JPS61127968A (ja) 油圧閉回路駆動装置の速度制御装置