Patent ID: 6913000

Claim:
An engine fuel delivery system comprising: a plurality of fuel injection valves configured and arranged to inject fuel into cylinders of an engine; a high-pressure fuel pump configured and arranged to be driven by an engine output at a pump rotational speed to pressurize the fuel to be injected by the fuel injection valves; an accumulator vessel configured and arranged to be provided in a high pressure line connecting the high-pressure fuel pump to the fuel injection valves; and a variable transmission mechanism configured and arranged to vary a drive rotational ratio in a power transmission path between the engine output and an input of the high-pressure fuel pump, the variable transmission mechanism being configured and arranged to control the pump rotational speed of the high-pressure fuel pump to a prescribed high pump rotational speed that is higher than a prescribed normal pump rotational speed used during an initial stage of engine starting after complete engine explosion has been achieved by cranking.