Axial piston machine with a number of pistons and a lifting disk

摘要

The axial piston machine, with a number of pistons in cylinder drillings supported at the running surface of a lifting disk (1), has a running surface (7) with a concave and especially a spherical curvature at the furthest from the extended lifting piston (5) from the cylinder drilling (4), as seen on the longitudinal center plane of the machine. The curvature of the running surface (7) is dimensioned so that the surface pressing of the lifting piston (5) in the cylinder drilling (4) and/or the bending of the lifting piston (5) deviate from each other in operation by not more than 20% and especially not more than 10%. The disk (1) has a pitch angle ( beta ) of 20-30 deg .