Piston for internal combustion engine, has piston body made of aluminum, which has annular groove and piston skirt, where piston ring is arranged in annular groove, and piston skirt has partial iron coating

摘要

The piston (2) has a piston body (4) made of aluminum, which has an annular groove (6) and a piston skirt (12). A piston ring is arranged in the annular groove. The piston skirt has a partial iron coating. A sliding layer recess (18) is provided in the iron coating, where the sliding layer recess is filled with a graphite coating. An independent claim is included for a method for manufacturing a piston.