Patent ID: 8925511
Filing Date: 2015-01-06
Classification: F02F,F05C

Abstract:
1. A cooling channel piston comprising: a one-piece piston having an upper part with an upper face, a ring field in the upper part, and piston bosses and piston skirts; a radially circumferential cooling channel having a kidney-like shape located behind the ring field, the cooling channel having an upper part behind the ring field and a lower part above the piston bosses and the piston skirts, the cooling channel extending behind the ring field in a direction of the upper face of the upper part of the piston; the cooling channel piston having an outwardly oriented support region above the piston bosses and the piston skirts; a closing element, which closes the cooling channel after the production thereof, fastened between a lower edge of the ring field and the support region; and the lower edge of the ring field and the portion of the support region on which the closing element is fastened being co-linearly disposed in a plane substantially parallel to a longitudinal stroke axis of the piston, such that the entire closing element is disposed substantially parallel to a longitudinal stroke axis of the piston.