JPH0453791U - - Google Patents

Info

Publication number
JPH0453791U
JPH0453791U JP9474590U JP9474590U JPH0453791U JP H0453791 U JPH0453791 U JP H0453791U JP 9474590 U JP9474590 U JP 9474590U JP 9474590 U JP9474590 U JP 9474590U JP H0453791 U JPH0453791 U JP H0453791U
Authority
JP
Japan
Prior art keywords
counterbalance valve
valve
air chamber
pilot pressure
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.)
Granted
Application number
JP9474590U
Other languages
Japanese (ja)
Other versions
JPH0741751Y2 (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 JP1990094745U priority Critical patent/JPH0741751Y2/en
Publication of JPH0453791U publication Critical patent/JPH0453791U/ja
Application granted granted Critical
Publication of JPH0741751Y2 publication Critical patent/JPH0741751Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Fluid-Pressure Circuits (AREA)

Description

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

第１図は本考案空気室付きカウンタバランス弁
の実施例における油圧回路図、第２図は同上の空
気室の配置を変更した他の実施例における油圧回
路図、第３図は従来のカウンタバランス弁の油圧
回路図である。 １０……油圧モータ、１１……駆動圧力管路、
１……カウンタバランス弁１次側管路、１３……
カウンタバランス弁２次側管路、１７……カウン
タバランス弁、１８……ウインチ弁、２２……空
気室、０２……スプール、０６……パイロツト圧
力室。 Fig. 1 is a hydraulic circuit diagram of an embodiment of the counterbalance valve with an air chamber of the present invention, Fig. 2 is a hydraulic circuit diagram of another embodiment in which the arrangement of the air chambers is changed, and Fig. 3 is a hydraulic circuit diagram of a conventional counterbalance valve. FIG. 3 is a hydraulic circuit diagram of the valve. 10... Hydraulic motor, 11... Drive pressure pipe,
1... Counterbalance valve primary side pipe line, 13...
Counterbalance valve secondary side pipe line, 17...Counterbalance valve, 18...Winch valve, 22...Air chamber, 02...Spool, 06...Pilot pressure chamber.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 巻取ドラムの油圧モータと、同モータに対する
作動油の供給を制御するウインチ弁との間の戻り
側回路に設けられるカウンタバランス弁において
、カウンタバランス弁の管路を開閉するスプール
のパイロツト圧力室に連通する空気室を設け、パ
イロツト圧力室の圧力変動を軽減したことを特徴
とする空気室付きカウンタバランス弁。 In a counterbalance valve installed in the return circuit between the hydraulic motor of the winding drum and the winch valve that controls the supply of hydraulic oil to the motor, a pilot pressure chamber of the spool that opens and closes the conduit of the counterbalance valve is used. A counterbalance valve with an air chamber characterized by having a communicating air chamber and reducing pressure fluctuations in a pilot pressure chamber.
JP1990094745U 1990-09-11 1990-09-11 Counterbalance valve with air chamber Expired - Lifetime JPH0741751Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990094745U JPH0741751Y2 (en) 1990-09-11 1990-09-11 Counterbalance valve with air chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990094745U JPH0741751Y2 (en) 1990-09-11 1990-09-11 Counterbalance valve with air chamber

Publications (2)

Publication Number Publication Date
JPH0453791U true JPH0453791U (en) 1992-05-08
JPH0741751Y2 JPH0741751Y2 (en) 1995-09-27

Family

ID=31832937

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990094745U Expired - Lifetime JPH0741751Y2 (en) 1990-09-11 1990-09-11 Counterbalance valve with air chamber

Country Status (1)

Country Link
JP (1) JPH0741751Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4719423B2 (en) * 2004-03-05 2011-07-06 株式会社アイチコーポレーション Pressure control valve

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5848790A (en) * 1981-08-03 1983-03-22 クレ−ン・コンパニ− Fluid transporter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5848790A (en) * 1981-08-03 1983-03-22 クレ−ン・コンパニ− Fluid transporter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4719423B2 (en) * 2004-03-05 2011-07-06 株式会社アイチコーポレーション Pressure control valve

Also Published As

Publication number Publication date
JPH0741751Y2 (en) 1995-09-27

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term