JPS5378402A - Control circuit for discharge quantity of variable capacity type oil pressure pump - Google Patents

Control circuit for discharge quantity of variable capacity type oil pressure pump

Info

Publication number
JPS5378402A
JPS5378402A JP15349476A JP15349476A JPS5378402A JP S5378402 A JPS5378402 A JP S5378402A JP 15349476 A JP15349476 A JP 15349476A JP 15349476 A JP15349476 A JP 15349476A JP S5378402 A JPS5378402 A JP S5378402A
Authority
JP
Japan
Prior art keywords
variable capacity
capacity type
type oil
control circuit
oil 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.)
Granted
Application number
JP15349476A
Other languages
Japanese (ja)
Other versions
JPS59714B2 (en
Inventor
Katsuro Abe
Takashi Kanai
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 JP51153494A priority Critical patent/JPS59714B2/en
Publication of JPS5378402A publication Critical patent/JPS5378402A/en
Publication of JPS59714B2 publication Critical patent/JPS59714B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Fluid-Pressure Circuits (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

PURPOSE: To prevent the excess of the flow rate of working oil over the limit of the generation of cavitation, by detecting the viscosity of working oil, and by regulating the tilt rolling quantity of a variable capacity type oil press. pump in response to the value.
COPYRIGHT: (C)1978,JPO&Japio
JP51153494A 1976-12-22 1976-12-22 Discharge amount control circuit of variable displacement hydraulic pump Expired JPS59714B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51153494A JPS59714B2 (en) 1976-12-22 1976-12-22 Discharge amount control circuit of variable displacement hydraulic pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51153494A JPS59714B2 (en) 1976-12-22 1976-12-22 Discharge amount control circuit of variable displacement hydraulic pump

Publications (2)

Publication Number Publication Date
JPS5378402A true JPS5378402A (en) 1978-07-11
JPS59714B2 JPS59714B2 (en) 1984-01-07

Family

ID=15563776

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51153494A Expired JPS59714B2 (en) 1976-12-22 1976-12-22 Discharge amount control circuit of variable displacement hydraulic pump

Country Status (1)

Country Link
JP (1) JPS59714B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53134201A (en) * 1977-02-24 1978-11-22 Commercial Shearing Pressure and flowwrate compensating controller having overrride means sensitive to viscosity and having constant torque
JPS56142929U (en) * 1980-03-26 1981-10-28
JPS589991U (en) * 1981-07-15 1983-01-22 住友重機械工業株式会社 Variable displacement pump output control circuit
JPS589992U (en) * 1981-07-15 1983-01-22 住友重機械工業株式会社 Variable displacement pump output control circuit
JPS5926651A (en) * 1982-08-05 1984-02-10 Isuzu Motors Ltd Two-stage control system for hydraulic pressure supplied to hydraulic apparatus of vehicle
JPS5954805A (en) * 1982-09-21 1984-03-29 Hitachi Constr Mach Co Ltd Hydraulically driving device with warming-up function

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6145311U (en) * 1984-08-30 1986-03-26 株式会社 サト− Peel label transfer device
JP3602786B2 (en) * 2000-11-10 2004-12-15 東亜機工株式会社 Label sticking method and label sticking device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53134201A (en) * 1977-02-24 1978-11-22 Commercial Shearing Pressure and flowwrate compensating controller having overrride means sensitive to viscosity and having constant torque
JPS56142929U (en) * 1980-03-26 1981-10-28
JPS589991U (en) * 1981-07-15 1983-01-22 住友重機械工業株式会社 Variable displacement pump output control circuit
JPS589992U (en) * 1981-07-15 1983-01-22 住友重機械工業株式会社 Variable displacement pump output control circuit
JPS6318790Y2 (en) * 1981-07-15 1988-05-26
JPS5926651A (en) * 1982-08-05 1984-02-10 Isuzu Motors Ltd Two-stage control system for hydraulic pressure supplied to hydraulic apparatus of vehicle
JPS5954805A (en) * 1982-09-21 1984-03-29 Hitachi Constr Mach Co Ltd Hydraulically driving device with warming-up function
JPH0235164B2 (en) * 1982-09-21 1990-08-08 Hitachi Construction Machinery

Also Published As

Publication number Publication date
JPS59714B2 (en) 1984-01-07

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