Patent ID: 6105553
Filing Date: 2000-08-22
Classification: F02B,F02D,F02P,Y02T

Abstract:
A method for operating an internal combustion engine comprising introduction of air via an intake system of the invention into combustion chambers of the engine in an intake stroke, compression of the introduced air including oxygen in the combustion chamber in a compression stroke, with injection of fuel at high pressure into the combustion chamber and self-ignition of the introduced fuel with the oxygen from the air by self-ignition in an expansion stroke, and expulsion of the combustion products in an expulsion stroke of the engine, controlling the fuel injection by an electric control unit that controls fuel injection valves which are each assigned to one combustion chamber of the engine and are supplied with fuel from a high-pressure fuel reservoir, brought to a high pressure, providing a constantly operated hot spot in the combustion chamber thereby providing a burning flame which is kept going beyond the expansion stroke and until the end of the intake stroke with excessively introduced fuel in the event of failure of the control of the fuel injection quantities, as long as oxygen from the air along with fuel is still available for combustion.