JPH01168307U - - Google Patents
Info
- Publication number
- JPH01168307U JPH01168307U JP6661388U JP6661388U JPH01168307U JP H01168307 U JPH01168307 U JP H01168307U JP 6661388 U JP6661388 U JP 6661388U JP 6661388 U JP6661388 U JP 6661388U JP H01168307 U JPH01168307 U JP H01168307U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- hydraulic pressure
- fail
- pilot
- control
- 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
Links
- 239000007788 liquid Substances 0.000 description 1
Landscapes
- Fluid-Damping Devices (AREA)
Description
第１図は本考案第１実施例の圧力制御弁を備え
た自動車用の姿勢制御装置を示す全体図、第２図
は本考案第２実施例の圧力制御弁を示す全体図、
第３図は本考案第３実施例の圧力制御弁を示す全
体図である。
２…パイロツト弁、３…メイン弁、３ｂ…メイ
ンスプール、３ｃ…バルブ穴、３ｓ…フエイルセ
ーフ室、４…フエイルセーフ弁、７…コントロー
ラ、１１…出力回路、４０…フエイルセーフ弁、
ＰＰ…パイロツト液圧、ＯＰ…出力液圧、ＳＰ…
供給液圧、ｃｉ…制御信号。
FIG. 1 is an overall view showing an attitude control device for an automobile equipped with a pressure control valve according to a first embodiment of the present invention, and FIG. 2 is an overall view showing a pressure control valve according to a second embodiment of the present invention.
FIG. 3 is an overall view showing a pressure control valve according to a third embodiment of the present invention. 2... Pilot valve, 3... Main valve, 3b... Main spool, 3c... Valve hole, 3s... Fail safe chamber, 4... Fail safe valve, 7... Controller, 11... Output circuit, 40... Fail safe valve,
PP...Pilot hydraulic pressure, OP...Output hydraulic pressure, SP...
Supply liquid pressure, ci...control signal.
Claims (1)
イロツト液圧を制御するパイロツト弁と、前記パ
イロツト液圧に基づき作動して、出力回路への出
力液圧を制御するメイン弁とを備え、 前記メイン弁には、バルブ穴に対し摺動して出
力液圧を制御可能なメインスプールが設けられ、 該メインスプールに対して出力液圧増圧方向に
導入液圧を伝達可能に、前記バルブ穴にフエイル
セーフ室が設けられ、 該フエイルセーブ室には、パイロツト弁の作動
時に、フエイルセーフ室をドレーン回路に接続さ
せ、パイロツト弁の作動停止時に、フエイルセー
フ室を液圧供給回路に接続させるべく切換作動を
行うフエイルセーフ弁が接続されていることを特
徴とする圧力制御弁。[Claims for Utility Model Registration] A pilot valve that operates based on a control signal from a controller to control pilot hydraulic pressure, and a main valve that operates based on the pilot hydraulic pressure to control output hydraulic pressure to an output circuit. The main valve is provided with a main spool that can slide against the valve hole to control the output hydraulic pressure, and can transmit the introduced hydraulic pressure in the direction of increasing the output hydraulic pressure to the main spool. A fail-safe chamber is provided in the valve hole, and the fail-safe chamber is configured to connect the fail-safe chamber to the drain circuit when the pilot valve is activated, and to connect the fail-safe chamber to the hydraulic pressure supply circuit when the pilot valve is not activated. A pressure control valve characterized in that a fail-safe valve is connected to perform a switching operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6661388U JPH0641844Y2 (en) | 1988-05-20 | 1988-05-20 | Pressure control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6661388U JPH0641844Y2 (en) | 1988-05-20 | 1988-05-20 | Pressure control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01168307U true JPH01168307U (en) | 1989-11-28 |
| JPH0641844Y2 JPH0641844Y2 (en) | 1994-11-02 |
Family
ID=31292012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6661388U Expired - Lifetime JPH0641844Y2 (en) | 1988-05-20 | 1988-05-20 | Pressure control valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0641844Y2 (en) |
-
1988
- 1988-05-20 JP JP6661388U patent/JPH0641844Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0641844Y2 (en) | 1994-11-02 |
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