JPS57116918A - Hydraulic circuit - Google Patents

Hydraulic circuit

Info

Publication number
JPS57116918A
JPS57116918A JP56004105A JP410581A JPS57116918A JP S57116918 A JPS57116918 A JP S57116918A JP 56004105 A JP56004105 A JP 56004105A JP 410581 A JP410581 A JP 410581A JP S57116918 A JPS57116918 A JP S57116918A
Authority
JP
Japan
Prior art keywords
unit
change
valve
hydraulic circuit
feeder
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
JP56004105A
Other languages
Japanese (ja)
Other versions
JPH0141841B2 (en
Inventor
Kiyoshi Takahashi
Yoshinori Yamagishi
Masahiko Ozeki
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.)
Mitsubishi Heavy Industries Ltd
KYB Corp
Original Assignee
Kayaba Industry Co Ltd
Mitsubishi Heavy Industries 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 Kayaba Industry Co Ltd, Mitsubishi Heavy Industries Ltd filed Critical Kayaba Industry Co Ltd
Priority to JP56004105A priority Critical patent/JPS57116918A/en
Publication of JPS57116918A publication Critical patent/JPS57116918A/en
Publication of JPH0141841B2 publication Critical patent/JPH0141841B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

PURPOSE: To simplify piping to make the entire circuit compact by constructing so as to have a selector valve within a unit on the one side, in a hydraulic circuit equipped with two pumps and two control units in a power shovel, etc.
CONSTITUTION: In a hydraulic circuit of a power shovel, two pumps 20, 21 and two sets of control valve units 22, 23 are provided, and the one pump 20 is connected to the unit 22 and the other pump 21 to the unit 23, respectively. The unit 22 comprises change-over valves 24W27 and a selector valve 28, and the unit 23 comprises change-over valves 24W32. And, the above described change-over valves 24W26 are connected in parallel via a parallel feeder 35, and the feeder 35 is closed when the selector valve 28 is located on the illustrated position, and at the same time the change-over valves 26, 27 are connected in tandem. Further, when th valve 28 is shifted to a left position, the feeder 35 and the change-over valve 27 are connected each other.
COPYRIGHT: (C)1982,JPO&Japio
JP56004105A 1981-01-14 1981-01-14 Hydraulic circuit Granted JPS57116918A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56004105A JPS57116918A (en) 1981-01-14 1981-01-14 Hydraulic circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56004105A JPS57116918A (en) 1981-01-14 1981-01-14 Hydraulic circuit

Publications (2)

Publication Number Publication Date
JPS57116918A true JPS57116918A (en) 1982-07-21
JPH0141841B2 JPH0141841B2 (en) 1989-09-07

Family

ID=11575503

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56004105A Granted JPS57116918A (en) 1981-01-14 1981-01-14 Hydraulic circuit

Country Status (1)

Country Link
JP (1) JPS57116918A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59160901U (en) * 1983-04-13 1984-10-27 東芝機械株式会社 control valve device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59160901U (en) * 1983-04-13 1984-10-27 東芝機械株式会社 control valve device

Also Published As

Publication number Publication date
JPH0141841B2 (en) 1989-09-07

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