Patent ID: 7293544
Filing Date: 2007-11-13
Classification: F02B,F02D,F02M,Y02T

Abstract:
1. A method for operating an internal combustion engine having a cylinder, a cylinder head in which at least one inlet valve and one outlet valve are arranged, a piston and a combustion chamber which is bounded between the cylinder head and the piston, comprising retaining exhaust gas in the combustion chamber and compressing the exhaust gas during a charge change, injecting a first fuel quantity into the retained exhaust gas by direct fuel injection, and subsequently feeding a second fuel quantity to the combustion chamber to form a homogeneous fuel/air mixture in the combustion chamber, wherein an auto-ignition time of the fuel/air mixture which is formed from the first and second fuel quantities is set as a function of a quantity ratio of the first fuel quantity to the second fuel quantity.