Hollow piston for an axial piston machine

摘要

A hollow piston (10) for an axial piston machine (1) has a cylindrical main body (36) with a first end portion (37) and with a second end portion (38) on. To the second end portion (38) is a cover (39) and on the first end portion (37) a connecting portion (40) to a head portion (41) is provided. The cylindrical main body (36) has an annular cavity (42) between a jacket wall (43) of the main body (36) and an extending along a longitudinal axis (l) of the main body (36) extending pin (44) is designed. The annular hollow space (42) has a first to the connecting portion (40) of the main body (36) adjacent first end surface (45) and a second, the first opposite end surface (46) on. A first inner profile (47) is connected between the first end face (45) of the annular cavity (42) and the outer wall (43) of the main body (36) formed. The first inner profile (47) is rounded off, wherein the rounding corresponds to a segment of an ellipse, so that an elliptical rounding section is formed.