| 摘要 |
The present invention relates to a piston (10) for an internal combustion engine, comprising a piston head (11) and a piston skirt (15) delimited by a lower skirt edge (18), wherein the piston skirt (15) comprises a running surface (16) associated with the pressure side (DS) of the piston skirt and a running surface (17) associated with the counter-pressure side (GDS) of the piston skirt and a zone (21, 21') is associated with each of the two running surfaces (16, 17), which zone starts from the lower skirt edge (18) and is exposed to a maximum load during the operation of the internal combustion engine. According to the invention, the zone (21) of the running surface (16) associated with the pressure side (DS) and/or the zone (21') of the running surface (17) associated with the counter-pressure side (GDS) is provided with a coating (23, 23'), which has vertically extending grooves (24, 24'). |
