Wobble plate mechanism with a toothed wobble plate

摘要

A volumetric machine of the barrel or axial piston type includes pistons which rest on an oblique pivoting swash-plate which in turn drives the crank of a driving or driven shaft. The pivoting of the swash-plate is defined by a two-nappe frustrum of cone integral with the swash-plate and rolling, without sliding, on a stationary two-nappe frustrum of cone angularly integral with the frame of the machine. The two-nappe frustrums of cone have as their common generatrix the bisectrix of the obtuse angle defined by the axis of the machine and the axis of the swash-plate.