JPS63156242U - - Google Patents

Info

Publication number
JPS63156242U
JPS63156242U JP4618887U JP4618887U JPS63156242U JP S63156242 U JPS63156242 U JP S63156242U JP 4618887 U JP4618887 U JP 4618887U JP 4618887 U JP4618887 U JP 4618887U JP S63156242 U JPS63156242 U JP S63156242U
Authority
JP
Japan
Prior art keywords
hydraulic
remote control
pressure
pressure reducing
reducing 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.)
Granted
Application number
JP4618887U
Other languages
English (en)
Other versions
JPH0621971Y2 (ja
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 JP1987046188U priority Critical patent/JPH0621971Y2/ja
Publication of JPS63156242U publication Critical patent/JPS63156242U/ja
Application granted granted Critical
Publication of JPH0621971Y2 publication Critical patent/JPH0621971Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

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

Description

【図面の簡単な説明】
第1図はこの考案にかかる油圧シヨベルの油圧
回路図、第2図は従来技術油圧回路図である。 1……第1メインポンプ、2……第2メインポ
ンプ、3……パイロツトポンプ、6,26……リ
モコン弁、31……メインポンプ圧導出用シヤト
ル弁、32……減圧弁、34……リリーフ弁、3
5……アキユムレータ。

Claims (1)

    【実用新案登録請求の範囲】
  1. リモコン弁の操作レバを操作して、パイロツト
    油圧により各種油圧アクチユエータ用切換弁を制
    御する油圧シヨベルのネガチブコントロール方式
    油圧回路において、メインポンプ圧導出部に減圧
    弁を設け、その減圧弁とリモコン弁とを連結した
    ことを特徴とする油圧シヨベルの油圧回路。
JP1987046188U 1987-03-27 1987-03-27 油圧シヨベルの油圧回路 Expired - Lifetime JPH0621971Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987046188U JPH0621971Y2 (ja) 1987-03-27 1987-03-27 油圧シヨベルの油圧回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987046188U JPH0621971Y2 (ja) 1987-03-27 1987-03-27 油圧シヨベルの油圧回路

Publications (2)

Publication Number Publication Date
JPS63156242U true JPS63156242U (ja) 1988-10-13
JPH0621971Y2 JPH0621971Y2 (ja) 1994-06-08

Family

ID=30865620

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987046188U Expired - Lifetime JPH0621971Y2 (ja) 1987-03-27 1987-03-27 油圧シヨベルの油圧回路

Country Status (1)

Country Link
JP (1) JPH0621971Y2 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007205414A (ja) * 2006-01-31 2007-08-16 Kayaba Ind Co Ltd 油圧アクチュエータ用制御回路
JP2011137547A (ja) * 2009-12-29 2011-07-14 Volvo Construction Equipment Ab ネガティブコントロール方式の油圧システム
JP2012229802A (ja) * 2011-04-20 2012-11-22 Jc Bamford Excavators Ltd 流体回路およびこの流体回路を含む作業機械

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60260704A (ja) * 1984-06-08 1985-12-23 Toshiba Mach Co Ltd 油圧制御装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60260704A (ja) * 1984-06-08 1985-12-23 Toshiba Mach Co Ltd 油圧制御装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007205414A (ja) * 2006-01-31 2007-08-16 Kayaba Ind Co Ltd 油圧アクチュエータ用制御回路
JP4703418B2 (ja) * 2006-01-31 2011-06-15 カヤバ工業株式会社 油圧アクチュエータ用制御回路
JP2011137547A (ja) * 2009-12-29 2011-07-14 Volvo Construction Equipment Ab ネガティブコントロール方式の油圧システム
JP2012229802A (ja) * 2011-04-20 2012-11-22 Jc Bamford Excavators Ltd 流体回路およびこの流体回路を含む作業機械
US20130028695A1 (en) * 2011-04-20 2013-01-31 J.C. Bamford Excavators Limited Hydraulic circuit and working machine including the same

Also Published As

Publication number Publication date
JPH0621971Y2 (ja) 1994-06-08

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