JPS6386385U - - Google Patents

Info

Publication number
JPS6386385U
JPS6386385U JP18064086U JP18064086U JPS6386385U JP S6386385 U JPS6386385 U JP S6386385U JP 18064086 U JP18064086 U JP 18064086U JP 18064086 U JP18064086 U JP 18064086U JP S6386385 U JPS6386385 U JP S6386385U
Authority
JP
Japan
Prior art keywords
hydraulic pump
circulation pipe
engine
pipe
tank
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
JP18064086U
Other languages
English (en)
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 JP18064086U priority Critical patent/JPS6386385U/ja
Publication of JPS6386385U publication Critical patent/JPS6386385U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】
図面は本考案の実施例を示し、第1図は本考案
の要部を示す油圧回路図、第2図及び第3図は他
の実施例を示す油圧回路図。 1……タンク、2……エンジン、3……油圧ポ
ンプ、4……管路、5……吐出管路、6……操作
バルブ、7……循環管路、8……電磁切換弁。

Claims (1)

    【実用新案登録請求の範囲】
  1. エンジンにより直接駆動される油圧ポンプを備
    え、この油圧ポンプから吐出される圧油によりア
    クチユエータを作動させる作業機の油圧回路にお
    いて、一端を油圧ポンプの吐出管路に連結し他端
    をタンクあるいはタンクと油圧ポンプを連結する
    管路に連結した循環管路を設け、この循環管路に
    循環管路を連通または遮断する開閉弁を設け、エ
    ンジンの始動時にのみ開閉弁を切換えて循環管路
    を連通させ、エンジンにかかる負荷を軽くするこ
    とを特徴とする作業機の油圧回路。
JP18064086U 1986-11-22 1986-11-22 Pending JPS6386385U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18064086U JPS6386385U (ja) 1986-11-22 1986-11-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18064086U JPS6386385U (ja) 1986-11-22 1986-11-22

Publications (1)

Publication Number Publication Date
JPS6386385U true JPS6386385U (ja) 1988-06-06

Family

ID=31124782

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18064086U Pending JPS6386385U (ja) 1986-11-22 1986-11-22

Country Status (1)

Country Link
JP (1) JPS6386385U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010071425A (ja) * 2008-09-19 2010-04-02 Hitachi Constr Mach Co Ltd 建設機械の油圧駆動装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5516834A (en) * 1978-07-18 1980-02-05 Tokyo Shibaura Electric Co Controller for hydraulic elevator
JPS5711291B2 (ja) * 1975-03-31 1982-03-03
JPS5914938B2 (ja) * 1975-02-17 1984-04-06 日本放送協会 Pcm信号の誤り補正方式

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5914938B2 (ja) * 1975-02-17 1984-04-06 日本放送協会 Pcm信号の誤り補正方式
JPS5711291B2 (ja) * 1975-03-31 1982-03-03
JPS5516834A (en) * 1978-07-18 1980-02-05 Tokyo Shibaura Electric Co Controller for hydraulic elevator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010071425A (ja) * 2008-09-19 2010-04-02 Hitachi Constr Mach Co Ltd 建設機械の油圧駆動装置

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