| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a liquefied gas fuel supplying device capable of reducing the leaking fuel amount even in case the fuel is leaked from a microgap in the valve part of an injector and suppressing an increase of the engine starting time through suppression of a drop of the fuel pressure in a fuel supply pipe. <P>SOLUTION: A delivery shutoff valve 15 to shut the fuel supply passage is installed at the inlet to a delivery pipe 6, while a check valve 20 to open to downstream is installed at the outlet, and a tank shutoff valve 14 is installed upstream of the fuel supply pipe 12, and it is arranged so that the delivery shutoff valve 15 and tank shutoff valve 14 are closed at the stop of the engine 10 and are opened at the start of the engine 10, which will decrease the fuel amount leaking from the microgap in the valve part of the injector 16 into the intake manifold 13 at the stop of the engine 10 and hinders the fuel in the fuel supply pipe 12 from returning to the fuel tank 2, so that the starting time of the engine 10 is decreased. <P>COPYRIGHT: (C)2003,JPO |
