DELIVERY FLOW RATE CONTROLLING METHOD IN ACCUMULATOR FUEL INJECTOR AND ACCUMULATOR FUEL INJECTOR

Fuel in a fuel tank 4 is supplied to a supply pump 6 as a high pressure pump through first and second flow control valves 8a and 8b, high pressure fuel is supplied under pressure to a common rail 2 by the supply pump 6, and the high pressure fuel accumulated in the common rail 2 can be injected by fuel injection valves 1. The amount of fuel that can be passed are different between first and second flow control valves 8a and 8b, and only one of the valves can be operated by an electronic control portion 5 as required. In this way, various kinds of discharge amounts from the supply pump 6 can be addressed.