Piston-slide shoe fixture for swash plate machine in hydraulic engine, has supporting surface e.g. spherical support bar, for supporting ball of ball joint and arranged within radially internal area of ball joint

摘要

The fixture has a piston (5), and a slide shoe (7) flexibly mounted at the piston that is connected with the slide shoe by a ball joint (9) formed by a ball (20) and a spherical recess. A discharge pressure chamber (23) is subjected with pressure via a longitudinal drill hole formed in the piston and limited by a sealing surface arranged within radially outside area of the ball joint. A supporting surface (30) e.g. spherical support bar, is provided for supporting the ball of the ball joint and arranged within radially internal area of the ball joint.