JPH0447274Y2 - - Google Patents

Info

Publication number
JPH0447274Y2
JPH0447274Y2 JP1987087570U JP8757087U JPH0447274Y2 JP H0447274 Y2 JPH0447274 Y2 JP H0447274Y2 JP 1987087570 U JP1987087570 U JP 1987087570U JP 8757087 U JP8757087 U JP 8757087U JP H0447274 Y2 JPH0447274 Y2 JP H0447274Y2
Authority
JP
Japan
Prior art keywords
flow rate
pressure
excavator
regulating valve
hydraulic motor
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
JP1987087570U
Other languages
English (en)
Japanese (ja)
Other versions
JPS63198682U (enrdf_load_stackoverflow
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 filed Critical
Priority to JP1987087570U priority Critical patent/JPH0447274Y2/ja
Publication of JPS63198682U publication Critical patent/JPS63198682U/ja
Application granted granted Critical
Publication of JPH0447274Y2 publication Critical patent/JPH0447274Y2/ja
Expired legal-status Critical Current

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Landscapes

  • Earth Drilling (AREA)
JP1987087570U 1987-06-08 1987-06-08 Expired JPH0447274Y2 (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987087570U JPH0447274Y2 (enrdf_load_stackoverflow) 1987-06-08 1987-06-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987087570U JPH0447274Y2 (enrdf_load_stackoverflow) 1987-06-08 1987-06-08

Publications (2)

Publication Number Publication Date
JPS63198682U JPS63198682U (enrdf_load_stackoverflow) 1988-12-21
JPH0447274Y2 true JPH0447274Y2 (enrdf_load_stackoverflow) 1992-11-09

Family

ID=30944907

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987087570U Expired JPH0447274Y2 (enrdf_load_stackoverflow) 1987-06-08 1987-06-08

Country Status (1)

Country Link
JP (1) JPH0447274Y2 (enrdf_load_stackoverflow)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4979003U (enrdf_load_stackoverflow) * 1972-10-23 1974-07-09
JPS6153996A (ja) * 1984-08-21 1986-03-18 日立建機株式会社 アースドリルにおける掘削作動制御方法
JPS6153995A (ja) * 1984-08-21 1986-03-18 日立建機株式会社 ア−スドリルにおける制御装置
JPS6168161U (enrdf_load_stackoverflow) * 1984-10-11 1986-05-10

Also Published As

Publication number Publication date
JPS63198682U (enrdf_load_stackoverflow) 1988-12-21

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