JPS571802A - Actuator driven hydraulic circuit - Google Patents

Actuator driven hydraulic circuit

Info

Publication number
JPS571802A
JPS571802A JP7269780A JP7269780A JPS571802A JP S571802 A JPS571802 A JP S571802A JP 7269780 A JP7269780 A JP 7269780A JP 7269780 A JP7269780 A JP 7269780A JP S571802 A JPS571802 A JP S571802A
Authority
JP
Japan
Prior art keywords
motor
switching valve
pump
actuator
valve
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.)
Pending
Application number
JP7269780A
Other languages
Japanese (ja)
Inventor
Morio Oshina
Takashi Kanai
Masami Ochiai
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 JP7269780A priority Critical patent/JPS571802A/en
Publication of JPS571802A publication Critical patent/JPS571802A/en
Pending legal-status Critical Current

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  • Fluid-Pressure Circuits (AREA)

Abstract

PURPOSE: To enable reliable stoppage of an actuator, by a method wherein a direction switching valve is located between an actuator and an one-way discharge variable displacement pump 13, blocking the connection with the actuator at the neutral position of said valve while it is connected to a closed circuit at the direction switching position.
CONSTITUTION: At the position between a motor 3 and the one way discharge variable displacement pump 13, the direction switching valve 14 is provided. With said valve at a neutral position, connection lines 4 and 5 to the motor 3 are blocked, and this permits the certain stoppage of the motor 3. With the direction-switching valve 14 changed over, a pump 13 is connected to the motor 3 to run the motor 3. Discharge oil from the motor 3 is induced into the pump 13 through the direction- switching valve 14. The circuit is constituted such that the discharge amount from the pump 13 is simultaneously regulated by the control lever of the direction switching valve 14.
COPYRIGHT: (C)1982,JPO&Japio
JP7269780A 1980-06-02 1980-06-02 Actuator driven hydraulic circuit Pending JPS571802A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7269780A JPS571802A (en) 1980-06-02 1980-06-02 Actuator driven hydraulic circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7269780A JPS571802A (en) 1980-06-02 1980-06-02 Actuator driven hydraulic circuit

Publications (1)

Publication Number Publication Date
JPS571802A true JPS571802A (en) 1982-01-07

Family

ID=13496811

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7269780A Pending JPS571802A (en) 1980-06-02 1980-06-02 Actuator driven hydraulic circuit

Country Status (1)

Country Link
JP (1) JPS571802A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60101301A (en) * 1983-11-07 1985-06-05 Mitsubishi Heavy Ind Ltd Regenerating device for brake energy of cylinder
US4649706A (en) * 1982-09-30 1987-03-17 Hutson James Henry Hydraulic feed control system for log debarkers
JP2015031364A (en) * 2013-08-05 2015-02-16 住友重機械工業株式会社 Shovel
JP2015031365A (en) * 2013-08-05 2015-02-16 住友重機械工業株式会社 Shovel
JP2015031095A (en) * 2013-08-05 2015-02-16 住友重機械工業株式会社 Shovel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4649706A (en) * 1982-09-30 1987-03-17 Hutson James Henry Hydraulic feed control system for log debarkers
JPS60101301A (en) * 1983-11-07 1985-06-05 Mitsubishi Heavy Ind Ltd Regenerating device for brake energy of cylinder
JP2015031364A (en) * 2013-08-05 2015-02-16 住友重機械工業株式会社 Shovel
JP2015031365A (en) * 2013-08-05 2015-02-16 住友重機械工業株式会社 Shovel
JP2015031095A (en) * 2013-08-05 2015-02-16 住友重機械工業株式会社 Shovel

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