发明名称 |
Vehicle speed control system |
摘要 |
A line pressure responsive flow control valve (46) is in series with a solenoid (34) operated off-on valve (26). These two valves (46, 26) are in a common housing having an inlet port (94) and an outlet port (96). A branch (24) of a bypass line (24, 24') extends from a fuel delivery line (10) to a fuel tank (16). A spring (76) biases a closure wall (70) of a piston (66) into contact with a valve seat (88) surrounding a valve orifice (90). Fuel pressure at the inlet (24) acts on the closure wall (70). When this pressure exceeds a predetermined minimum, the piston (66) is moved so as to open the valve orifice (90), allowing fuel to flow from the bypass line (24) to the off-on valve (26). The line pressure responsive flow control valve (46) functions to control flow through the bypass line (24, 24') at times when the off-on valve (26) is open.
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申请公布号 |
US4925196(A) |
申请公布日期 |
1990.05.15 |
申请号 |
US19880278741 |
申请日期 |
1988.11.30 |
申请人 |
GT DEVELOPMENT CORPORATION |
发明人 |
GREEN, CHARLES J.;MORRIS, JOHN M.;OLIPHANT, TIMOTHY L. |
分类号 |
F02D17/04 |
主分类号 |
F02D17/04 |
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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