Piston for internal combustion engine, has lower cooling duct delimitation that is formed partially by ring and piston lower section, with ring attached to piston upper section after being attached to piston lower section

摘要

A cooling duct (5), which is locked at least partly by a ring (20), is arranged in a piston upper section (2). A lower cooling duct delimitation (16) is formed partially by a piston lower section (3) and the ring. The ring is attached to the piston lower section before being attached to the piston upper section.