Patent ID: 6848250

Claim:
A fuel injection system for a combustion engine, comprising: a fuel metering unit for providing a metered supply of pressurised fuel, at least one first fuel injector, at least one second fuel injector, a fuel supply passage arrangement for supplying fuel from the fuel metering unit to the at least one first fuel injector and the at least one second fuel injector, the fuel supply passage arrangement including a first valve for controlling the flow of fuel from the fuel metering unit to the at least one second fuel injector, the first valve having a fuel inlet communicating with the fuel metering unit, a fuel supply outlet communicating with the at least one second injector, and a fuel control valve member moveable between a first position in which flow of fuel from the fuel inlet to the fuel supply outlet is prevented and a second position in which the flow of fuel from the fuel inlet to the fuel supply outlet is permitted, and means for controlling movement of the valve member, wherein the first valve has a fuel priming outlet communicating with the at least one second fuel injector, the fuel priming outlet being positioned relative to the fuel inlet and the valve member so that (a) the flow of fuel from the fuel inlet to the priming outlet is prevented when the valve member is in its first position, and (b) the flow of fuel from the fuel inlet to the fuel priming outlet is permitted before the valve member reaches its second position.