INTERNAL COMBUSTION PISTON ENGINE WITH DIRECT FUEL INJECTION BY MEANS OF AN INJECTOR THAT IS ARRANGED ON THE INPUT SIDE

Internal combustion piston engine comprising at least two gas inlet channels (3), at least one gas outlet channel (4) and at least one ignition device (14) per cylinder (1) as well as a combustion chamber (1.1). The gas inlet channels flow into said combustion chamber under a flat angle. The piston bottom (11.1) and the cylinder cover (2.2) are configured essentially rooflike in the vertical cut. The inventive engine also comprises a fuel injection nozzle (8) which flows into the cylinder (1) in the proximity of the inlet area belonging to the gas inlet channels (3) and between the gas inlet valves (6). The angle of the jet axis (13) of the fuel injection nozzle (8) is greater than the angle of the gas inlet channels in relation to the cylinder axis (5). The inventive engine further comprises an ignition device (14) which is arranged in the cylinder cover (2.1) in proximity of the cylinder axis (5) and a trough-shaped recess (12) that is arranged in the piston bottom (11.1) and has side walls that are essentially defined by quench areas (18, 19). Said recess is provided with a trough area (12.1) that is inclined in the direction towards the fuel injection nozzle (8) and runs out in a wall zone (12.2) on the side thereof facing the fuel injection nozzle (8), whereby said zone is directed towards the top in a steep manner.