Patent ID: 6789531
Filing Date: 2004-09-14
Classification: F02B,F02D,F02M,Y02T

Abstract:
Method of operating an internal-combustion engine which has a plurality of first cylinders and at least one second cylinder, the at least one second cylinder serving as an input cylinder, in that a portion of the exhaust gas from the at least one second cylinder is fed by way of an exhaust gas recirculating system to an intake air to produce an air/fuel mixture for the first cylinders, said engine also having an injection system for injecting fuel into the first cylinders and into the at least one second cylinder,said method comprising controlling of the injected fuel quantity of the at least one second cylinder independently of the controlling of the injected fuel quantity of the first cylinders, wherein for raising the partial oxygen pressure of the air/fuel mixture fed to the first cylinders, the fuel quantity is reduced which is injected into the at least one second cylinder.