Patent ID: 7481204
Filing Date: 2009-01-27
Classification: F02M,Y10T

Abstract:
1. A fuel system for an internal combustion engine receiving a fuel supply for operating said engine with a series of timed, quantitatively selected fuel charges, said fuel system comprising: a fuel injection system for pressurizing fuel for delivery to the engine, a supply and a return line extending between said fuel injection system and the fuel supply, at least one pump interposed in said supply line for receiving fuel from the fuel supply and delivering said flow to said fuel injection system, and a flow regulating valve interposed in the return line, said flow regulating valve comprising a housing having an inlet and outlet in a chamber interconnecting said inlet and outlet, and a valve element displaceable in said chamber between a first position wherein flow is blocked, a second position wherein flow is substantially unrestricted, and a third position where flow is restricted, said valve element being displaceable between said positions in response to the inlet pressure at said valve and said second position being between said first and third position.