Patent ID: 7293551

Claim:
A liquefied gas fuel supply device for a diesel engine characterized by comprising: a fuel tank for reserving liquefied gas fuel; an injection pump for delivering liquefied gas fuel to a fuel injection nozzle of a diesel engine; fuel supply means for delivering the liquefied gas fuel from the fuel tank to the injection pump; and remaining fuel retrieving means for retrieving liquefied gas fuel remaining in the injection pump to the fuel tank, after the stop of the diesel engine, the remaining fuel retrieving means being constructed to cause forced circulation of the liquefied gas fuel in the fuel tank back so as to again return the liquefied gas fuel to the fuel tank through an aspirator, and retrieve the liquefied gas fuel remaining in the injection pump to the fuel tank by suction force produced in a suction port of the aspirator by the forced circulation, the suction port of the aspirator being disposed at a position lower than an area in the injection pump in which the liquefied gas fuel remains.