Patent ID: 6907856

Claim:
An internal combustion engine, with spark ignition and with direct fuel injection, comprising at least one cylinder elongated along an axis (Z), a head which closes off the cylinder in a fixed manner, a piston mounted so as to slide in a sealed manner in the cylinder along the axis (Z) of the cylinder, a combustion chamber defined in the cylinder between a lower surface of the head and an upper surface of the piston, a fuel injector connected to the head and opening into the combustion chamber, a spark plug connected to the head and having electrodes which selectively produce a spark in the combustion chamber, intake and exhaust valves, movably mounted in the head, the valves being arranged on both sides of an axial mid-plane (P) of the cylinder, and which selectively close off the combustion chamber, and an injection pump which selectively supplies the injector with a flow of gasoline at a pressure exceeding 300 bar, wherein the injector injects the gasoline into the combustion chamber roughly in the shape of an injection cone with a cone angle (A) at least equal to 40 degrees and at most equal to 100 degrees.