JPS5915866U - Unload relief valve - Google Patents

Unload relief valve

Info

Publication number
JPS5915866U
JPS5915866U JP11098682U JP11098682U JPS5915866U JP S5915866 U JPS5915866 U JP S5915866U JP 11098682 U JP11098682 U JP 11098682U JP 11098682 U JP11098682 U JP 11098682U JP S5915866 U JPS5915866 U JP S5915866U
Authority
JP
Japan
Prior art keywords
relief valve
spool
piston
pressure
unload relief
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
JP11098682U
Other languages
Japanese (ja)
Inventor
永井　清英
Original Assignee
内田油圧機器工業株式会社
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 内田油圧機器工業株式会社 filed Critical 内田油圧機器工業株式会社
Priority to JP11098682U priority Critical patent/JPS5915866U/en
Publication of JPS5915866U publication Critical patent/JPS5915866U/en
Pending legal-status Critical Current

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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) [Summary] 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 drawings]

第１図は従来例の線図、第２図は本考案の実施例の線図
である。 １・・・流入ポート、２・・・アクチュエータポート、
３・・・スプール、４・・・ピストン、５・・・ばね、
６・・・室、８・・・開閉制御装置、９・・・ばね。FIG. 1 is a diagram of a conventional example, and FIG. 2 is a diagram of an embodiment of the present invention. 1...Inflow port, 2...Actuator port,
3... Spool, 4... Piston, 5... Spring,
6... Chamber, 8... Opening/closing control device, 9... Spring.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] アンロードリリーフ弁の流入ポート１からアクチュエー
タポート２へと流れる圧力流体を開閉自在のスプール３
によりタンクに排出自在とし、該−ヘスプール３を、こ
れを介して前方に作用する流入ポート１の圧力と後方に
作用するアクチュエータポート２の圧力とで進退するピ
ストン４と、該アクチュエータポート２の圧力により背
後のばね５に抗して開弁され前記スプール３の背後の室
６をタンクに連通ずると共に該ピストン４により制御さ
れて閉弁するポペット弁７とから成る開閉制御装置８に
より開閉制御するようにしたものに於て、該ピストン４
に調節自在のばね９を設けてその後退力を調節するよう
にして成るアンロードリリーフ弁。A spool 3 that can open and close pressurized fluid flowing from the inflow port 1 of the unload relief valve to the actuator port 2
A piston 4 moves forward and backward through the hespool 3 by the pressure of the inflow port 1 acting forward and the pressure of the actuator port 2 acting rearward, and the pressure of the actuator port 2. Opening/closing is controlled by an opening/closing control device 8 consisting of a poppet valve 7 which opens against a spring 5 behind the spool 3 to communicate a chamber 6 behind the spool 3 with the tank, and closes under the control of the piston 4. In such a case, the piston 4
An unload relief valve is provided with an adjustable spring 9 to adjust its retracting force.
JP11098682U 1982-07-23 1982-07-23 Unload relief valve Pending JPS5915866U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11098682U JPS5915866U (en) 1982-07-23 1982-07-23 Unload relief valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11098682U JPS5915866U (en) 1982-07-23 1982-07-23 Unload relief valve

Publications (1)

Publication Number Publication Date
JPS5915866U true JPS5915866U (en) 1984-01-31

Family

ID=30257898

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11098682U Pending JPS5915866U (en) 1982-07-23 1982-07-23 Unload relief valve

Country Status (1)

Country Link
JP (1) JPS5915866U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS549332A (en) * 1977-06-23 1979-01-24 Toyota Motor Corp Device for detecting openining of throttle valve in internal combustion engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS549332A (en) * 1977-06-23 1979-01-24 Toyota Motor Corp Device for detecting openining of throttle valve in internal combustion engine

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