Coolant channel for liquid-cooled piston for IC engines has corrugated cooling channel with relative distance between channel and piston wall between min. and max. values

摘要

The piston has a ring-shaped or segmented coolant channel. The channel (6) is at least partially corrugated at right angles to the direction of the longitudinal channel axis (2). The vertical axis of a channel cross section is at various angles to the longitudinal axis. The angle between the axis varies several times across the periphery, between a maximum and minimum value.