发明名称 |
A PRESSURE FLUID CONTROL SYSTEM |
摘要 |
A vehicle hood comprises a frame which may be extended by a pair of hydraulically operable rams (1 and 2) from stowed to an extended position and tensioned by a pair of hydraulically operable rams (3 and 4). The rams are supplied in operation with hydraulic fluid by means of a pump (6) through a hydraulic circuit comprising a solenoid operable valve (13) in parallel with a variable restrictor (14). As the hood is extended gravity tends to take over. At that point a microswitch (15) is activated by the hood to close valve (13) thereby lowering the hydraulic fluid flow rate and obviating crashdown of the food. |
申请公布号 |
WO9429137(A1) |
申请公布日期 |
1994.12.22 |
申请号 |
WO1994GB01179 |
申请日期 |
1994.05.31 |
申请人 |
ROLLS-ROYCE MOTOR CARS LIMITED;RAWLINSON, NEIL |
发明人 |
RAWLINSON, NEIL |
分类号 |
B60J7/12;E05F15/02;F15B11/00;F16K1/52;F16K31/06;(IPC1-7):B60J7/12 |
主分类号 |
B60J7/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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