Importance

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Abstract

The invention relates to a piston, in particular for an engine, having a top side, a bottom side, a circumferential surface extending along a circumference and a movement axis extending essentially parallel to a tangent of the circumferential surface and through the top side and through the bottom side, the circumferential surface being designed for guiding the piston in a cylinder bore of a cylinder along the movement axis, the top side being designed for absorbing compressive forces of a gas and the bottom side having a connecting rod receptacle, wherein the connecting rod receptacle has one or more undercuts in a traction and a compression direction, so that the connecting rod receptacle is designed to receive a thickened portion of a connecting rod which corresponds to the connecting rod receptacle in a form-fitting manner and can be pivoted about a pivot axis, wherein the piston has any number of radially arranged, essentially flat cross-sectional surfaces extending through the axis of movement. The invention also relates to a crank drive and an internal combustion engine.

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First Claim