Patent ID: 8387585
Filing Date: 2013-03-05
Classification: F02F,F16J

Abstract:
1. A piston of an internal combustion engine that has a piston crown with annular grooves defining a ring zone and a skirt part, comprising: the skirt part having load-bearing skirt wall sections connected through inclined connecting walls; the load-bearing skirt wall sections configured asymmetrically with reference to a piston pin axis such that the one skirt wall section in its radial progression passes into the connecting walls later than the skirt wall section lying opposite thereto; the load-bearing skirt wall sections connected by inclined connecting walls, each defining an open space, that is retracted with respect to the outer diameter of the piston; pin bosses for accommodating a piston pin disposed in the connecting walls; and the connecting walls inclined at such an angle that, in progressing from a lower edge over an intermediate region that lies further back than the lower edge, the connecting walls go over as far as at least flush with the pin bosses, into a boss supporting area below the piston crown in an end area that lies further back than the intermediate region.