Patent ID: 6010311
Filing Date: 2000-01-04
Classification: F04B

Abstract:
A radial piston machine comprising a housing, a rotatable cylinder-barrel disposed in said housing and provided with a series of cylinders each containing a piston, an annular track-ring surrounding said cylinder-barrel such that the pistons in said cylinders bear on said track-ring, said track-ring being mounted for pivotal movement in a radial plane about an eccentric axis parallel to the axis of rotation of said cylinder-barrel, and abutment-surfaces for controlling contact between said annular track-ring and the interior of said housing, said abutment-surfaces comprising a concave first part-cylindrical bearing-surface on the interior of said housing, and a complementary convex second part-cylindrical bearing-surface on an exterior portion of said track-ring, said first and second bearing-surfaces describing cylinders having a common axis coincident with said eccentric axis.