PISTON OF AN INTERNAL COMBUSTION ENGINE

摘要

The present disclosure relates to a piston (1) for an internal combustion engine of a spark-ignition engine with external mixture formation. The piston (1) may comprise a piston skirt (1.1) with a centre axis M and a piston crown (2) limiting the piston skirt (1.1) towards the top with a diameter D. The piston crown (2) may be formed of a piston crown margin (2.1) of the width b extending in circumferential direction U and a piston trough (2.2) with a depth t. The piston trough (2.2) has a piston trough wall (2.2a) with a base diameter d. Within the piston trough wall (2.2a) at least one recess 4.1 with a height h may be provided. The height h with respect to the direction of the centre axis M may satisfy the following requirement: 0.2 t <= h <= t. Furthermore, the present disclosure relates to an engine with such a piston.