Patent ID: 7584744

Claim:
An indirect injection internal combustion engine which is supercharged and has spark-ignition which is operational in a burnt gas scavenging mode or in a conventional mode, comprising at least one cylinder with a combustion chamber, at least two air intake means, one of the at least two air intake means being a burnt gas scavenging intake means and the other of the at least two air intake means being a fuel injection intake means, the at least two air intake means each comprising a pipe controlled by an intake valve, at least one burnt gas exhaust means with an exhaust valve associated with an exhaust pipe and at least one fuel injection means, wherein the fuel injection means comprises an injector with two nozzles allowing, when the engine runs in the gas scavenging mode, injection intake means are supplied with fuel only through one of the nozzles and, when the engine runs conventionally, the scavenging intake means and injection intake means are supplied respectively with fuel through the nozzles and the gas scavenging mode occurs when overlap of an exhaust valve and an intake valve occurs.