Axial piston machine having a swashplate design

Abstract

An axial piston machine having a swashplate design includes a cylinder drum that is rotatably supported in a housing and that has a plurality of cylinder bores, which have pistons that can be slid longitudinally in said cylinder bores and that are supported on a swashplate. The aim of the disclosure is to achieve an improvement in the efficiency with a short length design by means of reducing the lost forces. The aim is achieved in that no force components act on the pistons in the radial direction.

1 . An axial piston machine comprising:
 a housing,   a swashplate, and   a cylinder drum rotatably supported in the housing, the cylinder drum defining a plurality of cylinder bores containing pistons, which are configured to move longitudinally in the cylinder bores and are supported on the swashplate,   wherein no force component in a radial direction acts on the pistons.   
     
     
         2 . The axial piston machine as claimed in  claim 1 , wherein the swashplate has a running surface that is perpendicular to a longitudinal axis of the piston at the respective point of contact. 
     
     
         3 . The axial piston machine as claimed in  claim 2 , wherein the running surface is configured without a curvature. 
     
     
         4 . The axial piston machine as claimed in  claim 2 , wherein the running surface has a circumferential groove, in which the piston is guided in a linear manner. 
     
     
         5 . The axial piston machine as claimed in  claim 1 , wherein the piston has a swashplate end that is of rotationally symmetrical design. 
     
     
         6 . The axial piston machine as claimed in  claim 5 , wherein the swashplate end of the piston is of spherical design. 
     
     
         7 . The axial piston machine as claimed in  claim 5 , wherein the swashplate end includes a ball that is rotatably supported in the swashplate end of the piston.