Patent ID: 6314940
Filing Date: 2001-11-13
Classification: F02B,F02D,F02F,F02M,Y02T

Abstract:
A fuel feed system for a spark ignition internal combustion engine including a cylinder with a piston movably disposed in said cylinder, a cylinder head covering said cylinder to form a combustion chamber between said piston and said cylinder head, a first fuel injection valve mounted in said cylinder head for directly injecting fuel into said combustion chamber, said cylinder head having gas intake and exhaust passages, and a second fuel injection valve mounted in said intake passage for injecting fuel into the intake air being supplied to said combustion chamber, said first and second injection valves being connected to an engine control unit for controlling the fuel supply to said combustion chamber by said first and second injection valves, said first injection valve being designed for a maximum fuel supply less than the maximum amount of fuel to said combustion chamber needed for full power operation of said engine to provide for greater controllability of the amount of fuel injected directly into said combustion chamber through said first injection valve, the rest of the fuel needed being supplied by said second fuel injection valve.