JPS56115434A - Hydraulic circuit for civil engineering construction machine - Google Patents

Hydraulic circuit for civil engineering construction machine

Info

Publication number
JPS56115434A
JPS56115434A JP1551280A JP1551280A JPS56115434A JP S56115434 A JPS56115434 A JP S56115434A JP 1551280 A JP1551280 A JP 1551280A JP 1551280 A JP1551280 A JP 1551280A JP S56115434 A JPS56115434 A JP S56115434A
Authority
JP
Japan
Prior art keywords
operated
change
over valve
valve
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
JP1551280A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6225827B2 (enrdf_load_stackoverflow
Inventor
Toichi Hirata
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 JP1551280A priority Critical patent/JPS56115434A/ja
Publication of JPS56115434A publication Critical patent/JPS56115434A/ja
Publication of JPS6225827B2 publication Critical patent/JPS6225827B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
JP1551280A 1980-02-13 1980-02-13 Hydraulic circuit for civil engineering construction machine Granted JPS56115434A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1551280A JPS56115434A (en) 1980-02-13 1980-02-13 Hydraulic circuit for civil engineering construction machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1551280A JPS56115434A (en) 1980-02-13 1980-02-13 Hydraulic circuit for civil engineering construction machine

Publications (2)

Publication Number Publication Date
JPS56115434A true JPS56115434A (en) 1981-09-10
JPS6225827B2 JPS6225827B2 (enrdf_load_stackoverflow) 1987-06-04

Family

ID=11890859

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1551280A Granted JPS56115434A (en) 1980-02-13 1980-02-13 Hydraulic circuit for civil engineering construction machine

Country Status (1)

Country Link
JP (1) JPS56115434A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58113605A (ja) * 1981-12-28 1983-07-06 Kayaba Ind Co Ltd 油圧回路とその回路に利用するコントロ−ルバルブ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58113605A (ja) * 1981-12-28 1983-07-06 Kayaba Ind Co Ltd 油圧回路とその回路に利用するコントロ−ルバルブ

Also Published As

Publication number Publication date
JPS6225827B2 (enrdf_load_stackoverflow) 1987-06-04

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