Patent ID: 6895937

Claim:
A fuel injector comprising: a first accumulator for accumulating a pressurized fuel; a second accumulator for accumulating a fuel having a higher pressure than the pressure of the fuel in the first accumulator; fuel injection valves to which the fuel from the first and second accumulators is supplied and thereby the fuel injection valves are opened, and the fuel is injected; fuel feeding pipes for feeding the fuel accumulated in the first and second accumulators to the fuel injection valves; a first valve mechanism which is provided at the fuel feeding pipe and which opens and allows the flow of the fuel in the first accumulator to the fuel injection valves; a second valve mechanism which is provided at the fuel feeding pipe and which opens and allows the flow of the fuel in the second accumulator to the fuel injection valves; and a control device for controlling the first and second valve mechanisms; wherein the first accumulator and the first valve mechanism, and the second accumulator and the second valve mechanism are provided in parallel to each other to the fuel feeding pipe; wherein in a normal injection mode, the control device makes the first and second valve mechanisms open at the same time; and wherein in an injection rate control mode, the control device makes an open timing of the first valve mechanism earlier than an open timing in the normal injection mode.