JPS58146128U - hydraulic circuit - Google Patents

hydraulic circuit

Info

Publication number
JPS58146128U
JPS58146128U JP4328482U JP4328482U JPS58146128U JP S58146128 U JPS58146128 U JP S58146128U JP 4328482 U JP4328482 U JP 4328482U JP 4328482 U JP4328482 U JP 4328482U JP S58146128 U JPS58146128 U JP S58146128U
Authority
JP
Japan
Prior art keywords
hydraulic pump
circuit
hydraulic
hydraulic circuit
actuator
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
JP4328482U
Other languages
Japanese (ja)
Inventor
健樹 藤田
Original Assignee
日立建機株式会社
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 日立建機株式会社 filed Critical 日立建機株式会社
Priority to JP4328482U priority Critical patent/JPS58146128U/en
Publication of JPS58146128U publication Critical patent/JPS58146128U/en
Pending legal-status Critical Current

Links

Landscapes

  • Fluid-Pressure Circuits (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はクラッチ作動用油圧シリンダを操作する従来の
油圧回路図、第２図は本考案による油圧回路図である。 １・・・クラッチ作動用油圧シリンダ、２・・・油圧ポ
ンプ、３・・・エンジン、４・・・リリーフ弁、８・・
・油タンク、９・・・バイパス回路、１０・・・開閉弁
。FIG. 1 is a conventional hydraulic circuit diagram for operating a clutch actuating hydraulic cylinder, and FIG. 2 is a hydraulic circuit diagram according to the present invention. DESCRIPTION OF SYMBOLS 1...Hydraulic cylinder for clutch operation, 2...Hydraulic pump, 3...Engine, 4...Relief valve, 8...
・Oil tank, 9... Bypass circuit, 10... Open/close valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 常時加圧を必要とするアクチュエータと、そのアクチュ
エータへ圧油を供給する油圧ポンプと、その油圧ポンプ
を駆動するエンジンと、回路内の圧力を設定値に保持す
るリリーフ弁とを備え、中立運転時には油圧ポンプの吐
出油をリリーフ弁を介して油タンクに戻す油圧回路にお
いて、前記油圧ポンプの吐出側−と油タンクとを連絡す
るバイパス回路を設け、そのバイパス回路の途中に開閉
弁を設けたことを特徴とする油圧回路。It is equipped with an actuator that requires constant pressurization, a hydraulic pump that supplies pressure oil to the actuator, an engine that drives the hydraulic pump, and a relief valve that maintains the pressure in the circuit at a set value. In a hydraulic circuit that returns oil discharged from a hydraulic pump to an oil tank via a relief valve, a bypass circuit is provided that connects the discharge side of the hydraulic pump and the oil tank, and an on-off valve is provided in the middle of the bypass circuit. A hydraulic circuit featuring:
JP4328482U 1982-03-29 1982-03-29 hydraulic circuit Pending JPS58146128U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4328482U JPS58146128U (en) 1982-03-29 1982-03-29 hydraulic circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4328482U JPS58146128U (en) 1982-03-29 1982-03-29 hydraulic circuit

Publications (1)

Publication Number Publication Date
JPS58146128U true JPS58146128U (en) 1983-10-01

Family

ID=30054380

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4328482U Pending JPS58146128U (en) 1982-03-29 1982-03-29 hydraulic circuit

Country Status (1)

Country Link
JP (1) JPS58146128U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002001159A (en) * 2000-06-16 2002-01-08 Hitachi Constr Mach Co Ltd Hydraulic drive assembly for self-propelled recycled article producing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002001159A (en) * 2000-06-16 2002-01-08 Hitachi Constr Mach Co Ltd Hydraulic drive assembly for self-propelled recycled article producing machine

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