Piston for internal combustion engine, has cooling duct partially formed by stamped metal sheet, in which radial side of stamp used has sawtooth design

摘要

The piston has a radial cooling duct (2) arranged in the piston head. The cooling duct has an inlet port (8) through which the cooling medium is supplied, and an exhaust port through which the cooling agent is discharged. The cooling duct is partially formed by stamped metal sheet (3), in which the radial side of the stamp used has a sawtooth design.