Patent ID: 6543410
Filing Date: 2003-04-08
Classification: F02B,F02D,F02F,F02M,Y02T

Abstract:
A direct injection engine comprising intake ports for supplying an air and an EGR gas to combustion chambers, fuel injection valves directly injecting a fuel, and ignition plugs, and wherein the air and the EGR gas are supplied to the combustion chambers such that the air having a large flow velocity and the EGR gas having a small flow velocity generate a tumble gas flow so as to provide a state of distribution, in which near the ignition plugs, an air-fuel ratio is on a rich side with a less fresh air and a much EGR gas, and with distance from the ignition plugs, the air-fuel ratio comes to a lean side with a much fresh air and a less EGR gas.