JPH0160682B2 - - Google Patents

Info

Publication number
JPH0160682B2
JPH0160682B2 JP222582A JP222582A JPH0160682B2 JP H0160682 B2 JPH0160682 B2 JP H0160682B2 JP 222582 A JP222582 A JP 222582A JP 222582 A JP222582 A JP 222582A JP H0160682 B2 JPH0160682 B2 JP H0160682B2
Authority
JP
Japan
Prior art keywords
discharge amount
pressure
closed circuit
pump
amount
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
JP222582A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58121302A (ja
Inventor
Eiki Izumi
Hiroshi Watanabe
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 JP222582A priority Critical patent/JPS58121302A/ja
Publication of JPS58121302A publication Critical patent/JPS58121302A/ja
Publication of JPH0160682B2 publication Critical patent/JPH0160682B2/ja
Granted legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/08Servomotor systems incorporating electrically operated control means
    • F15B21/087Control strategy, e.g. with block diagram

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Operation Control Of Excavators (AREA)
  • Servomotors (AREA)
  • Fluid-Pressure Circuits (AREA)
JP222582A 1982-01-12 1982-01-12 油圧閉回路のポンプ吐出量制御装置 Granted JPS58121302A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP222582A JPS58121302A (ja) 1982-01-12 1982-01-12 油圧閉回路のポンプ吐出量制御装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP222582A JPS58121302A (ja) 1982-01-12 1982-01-12 油圧閉回路のポンプ吐出量制御装置

Publications (2)

Publication Number Publication Date
JPS58121302A JPS58121302A (ja) 1983-07-19
JPH0160682B2 true JPH0160682B2 (en]) 1989-12-25

Family

ID=11523407

Family Applications (1)

Application Number Title Priority Date Filing Date
JP222582A Granted JPS58121302A (ja) 1982-01-12 1982-01-12 油圧閉回路のポンプ吐出量制御装置

Country Status (1)

Country Link
JP (1) JPS58121302A (en])

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0238979U (en]) * 1988-09-06 1990-03-15
JPH0240277U (en]) * 1988-05-18 1990-03-19

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6233948A (ja) * 1985-08-07 1987-02-13 Hitachi Constr Mach Co Ltd 油圧駆動装置
JPS6280302A (ja) * 1985-09-30 1987-04-13 Kayaba Ind Co Ltd 閉回路電気油圧アクチユエ−タパツケ−ジ
JPH02256903A (ja) * 1989-10-27 1990-10-17 Hitachi Constr Mach Co Ltd 油圧回路の制御装置
NL9201118A (nl) * 1992-06-24 1994-01-17 Leuven K U Res & Dev Gereedschapset voor laparoscopische vaginale hysterectomie.
DE19645699A1 (de) * 1996-11-06 1998-05-07 Schloemann Siemag Ag Hydrostatisches Getriebe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0240277U (en]) * 1988-05-18 1990-03-19
JPH0238979U (en]) * 1988-09-06 1990-03-15

Also Published As

Publication number Publication date
JPS58121302A (ja) 1983-07-19

Similar Documents

Publication Publication Date Title
US7252030B2 (en) Hydraulic control circuit and method thereof
JP3139769B2 (ja) 油圧再生装置
JPS6342122B2 (en])
JPS6115306B2 (en])
JPH0160682B2 (en])
JPH04136509A (ja) クローズドセンタ・ロードセンシングシステムにおけるポンプの吐出容積の可変回路
JPH0694007A (ja) 油圧駆動機械の制御装置
WO1990009528A1 (en) Hydraulic circuit for working machines
JPH0160681B2 (en])
KR20040031063A (ko) 부유 제어 기능을 구비한 유압 동력 아암 시스템
JP3659654B2 (ja) 建設機械の油圧回路
JPS59714B2 (ja) 可変容量形油圧ポンプの吐出量制御回路
JP2721384B2 (ja) 作業機械の油圧回路
KR0166190B1 (ko) 중장비의 가변용량형펌프 유량제어장치
JPS63266201A (ja) 可変容量形油圧モ−タの容量制御装置
JP2695335B2 (ja) 土工機における油圧アクチュエータ制御装置
JP3241062B2 (ja) 作業機のポンプ流量制御装置
JPS5934002A (ja) 油圧閉回路装置
JPS5922074B2 (ja) 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
JPS6239296B2 (en])
JPH07197489A (ja) 建設機械の油圧制御装置
JPS6213542B2 (en])
JPH0160684B2 (en])
JPS6135424B2 (en])
JP2554991Y2 (ja) 油圧ショベルのフロント制振システム