JPH01152809U - - Google Patents
Info
- Publication number
- JPH01152809U JPH01152809U JP4948888U JP4948888U JPH01152809U JP H01152809 U JPH01152809 U JP H01152809U JP 4948888 U JP4948888 U JP 4948888U JP 4948888 U JP4948888 U JP 4948888U JP H01152809 U JPH01152809 U JP H01152809U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- pressure control
- fail
- valve body
- hydraulic pressure
- 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
Description
図面は本考案実施例の圧力制御弁を備えた車両
姿勢制御装置を示す全体図である。
１…車高調整アクチユエータ（液圧アクチユエ
ータ）、４…出力回路、５…圧力制御弁、６…液
圧供給回路、７…ドレーン回路、８…パイロツト
液圧制御手段（押圧制御手段）、９…リターンス
プリング（リターン手段）、１０…コントローラ
、５１…バルブボデイ、５１ａ…バルブ穴、５１
ｂ…第１背室（リターン手段）、５１ｈ…フエイ
ルセーフ弁座、５２…バルブスプール、５２ｃ…
フエイルセーフ弁体、５２ｄ…液圧制御室、５２
ｅ…連通孔（リターン手段）、５２ｇ…出力流路
、Ｆ…フエイルセーフバルブ。
The drawing is an overall view showing a vehicle attitude control device equipped with a pressure control valve according to an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Vehicle height adjustment actuator (hydraulic pressure actuator), 4... Output circuit, 5... Pressure control valve, 6... Hydraulic pressure supply circuit, 7... Drain circuit, 8... Pilot hydraulic pressure control means (pressure control means), 9... Return spring (return means), 10... Controller, 51... Valve body, 51a... Valve hole, 51
b...First back chamber (return means), 51h...Failsafe valve seat, 52...Valve spool, 52c...
Fail safe valve body, 52d...hydraulic pressure control chamber, 52
e...Communication hole (return means), 52g...Output flow path, F...Fail safe valve.
Claims (1)
ルブ穴が穿設されたバルブボデイと、 前記バルブ穴に摺動可能に設けられ、押圧制御
手段による増圧方向への摺動及びリターン手段に
よる減圧方向への摺動により液圧制御室の液圧を
制御可能に形成されたバルブスプールと、 前記バルブ穴端部位置のバルブスプールとバル
ブボデイ間に形成され、液圧制御室の液圧が導入
されると共に、液圧アクチユエータに至る出力回
路に接続された出力流路と、 該出力流路の途中のバルブボデイ側に形成され
たフエイルセーフ弁座と、 前記押圧制御手段の作動時のバルブスプールの
ストローク範囲では前記フエイルセーフ弁座に対
して離反し、押圧制御手段の作動停止時のバルブ
スプールのストロークで前記フエイルセーフ弁座
に当接すべく、前記バルブスプールの端部に一体
的に形成されたフエイルセーフ弁体と、 を備えていることを特徴とする圧力制御弁。[Claims for Utility Model Registration] A valve body having a valve hole that communicates with a hydraulic pressure supply circuit and a drain circuit, and a valve body that is slidably provided in the valve hole and that is slidable in the pressure increasing direction by a pressure control means. a valve spool formed to be able to control the hydraulic pressure in the hydraulic pressure control chamber by sliding in the pressure reducing direction by the movement and return means; and a valve spool formed between the valve spool at the end of the valve hole and the valve body, When the hydraulic pressure is introduced, an output flow path connected to an output circuit leading to the hydraulic actuator, a fail-safe valve seat formed on the valve body side in the middle of the output flow path, and when the pressure control means is activated. integrally attached to the end of the valve spool so as to separate from the fail-safe valve seat in the stroke range of the valve spool, and come into contact with the fail-safe valve seat in the stroke of the valve spool when the pressure control means stops operating. A pressure control valve comprising: a fail-safe valve body having a formed structure;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988049488U JPH0754005Y2 (en) | 1988-04-13 | 1988-04-13 | Pressure control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988049488U JPH0754005Y2 (en) | 1988-04-13 | 1988-04-13 | Pressure control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01152809U true JPH01152809U (en) | 1989-10-20 |
| JPH0754005Y2 JPH0754005Y2 (en) | 1995-12-13 |
Family
ID=31275585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988049488U Expired - Lifetime JPH0754005Y2 (en) | 1988-04-13 | 1988-04-13 | Pressure control valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0754005Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4839769U (en) * | 1971-09-13 | 1973-05-18 | ||
| JPS5118031A (en) * | 1974-08-06 | 1976-02-13 | Nissan Motor | HAIDORONYUUMACHITSUKUSASUPENSHONNO SHAKOHOJISOCHI |
-
1988
- 1988-04-13 JP JP1988049488U patent/JPH0754005Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4839769U (en) * | 1971-09-13 | 1973-05-18 | ||
| JPS5118031A (en) * | 1974-08-06 | 1976-02-13 | Nissan Motor | HAIDORONYUUMACHITSUKUSASUPENSHONNO SHAKOHOJISOCHI |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0754005Y2 (en) | 1995-12-13 |