| 摘要 |
PROBLEM TO BE SOLVED: To prevent the leakage of a fuel vaporized gas from a high pressure pump and the seizure of such high pressure pump in stopping an engine, and to realize quick restarting of a DME engine. SOLUTION: A fuel supply device for the DME engine is provided with a bypass line 21 for taking out properly a fuel from the more downstream side than a fuel cooler 17 on a fuel return line 16 to send it back to a fuel tank 1; a flow passage switching valve 22 for selectively delivering the fuel from the cooler 17 to the line 21 side only when a switching command 22a is inputted to a connecting part with the line 16 on the line 21; and a control device 24 for outputting the switching command 22a to the switching valve 22 in stopping the engine, and for outputting properly start commands 2a and 19a to a feed pump 2 and an electric fan 19 of the fuel cooler 17, respectively, only under the condition where fuel temperature in a fuel gallery 12 is over a predetermined specified temperature T1 . |
