| 摘要 |
<p>A fuel pressure regulator for an internal combustion engine comprises a first diaphragm (13), a fuel pressure regulating chamber (S1), a valve seat (16) provided in the fuel pressure regulating chamber (S1), said valve seat (16) having an overflow opening (16a), a valve member (14) fixedly mounted on said diaphragm (13) and relatively movable with respect to said valve seat (16), a first resilient member (26) for biasing said valve member (14) to said valve seat (16) to close said overflow opening (16a), and a second resilient member (28) which is selectively brought into action by an electromagnet (27) when the fluid pressure is within a predetermined range so that the second resilient member (28) acts on the valve seat (16) or the valve member (14) to give an additional fluid pressure. In this way the second fuel pressure can be set to prevent vapour lock during engine restart while it is still hot.</p> |
