Rotating piston machine having cam controlled alternating pistons

Rotary piston machine having a casing (2), having a shaft (5) supported in the casing (2), having an annular space (1) in which two rotation bodies (3, 4) are arranged and on whose walls, in which inlet and outlet openings (6a-6h) are provided for the working medium, the rotation bodies (3, 4) are in sealing contact, each rotation body (3, 4) having sector-shaped paddles (3a-3d, 4a-4d) extending radially outwards, the two rotation bodies (3, 4) being coaxially arranged and their paddles interleaving with one another in such a way that each paddle of one rotation body is arranged between two paddles of the other rotation body, a cam track control (7, 8, 9) being provided by means of which, on rotation of the shaft (5), the two rotation bodies (3, 4) execute revolutions with cyclic changes to the rotational velocity and the distances between the paddles of the two rotation bodies, and the cam track control has first cam track control means in the form of first cam rings (7), second cam track control means in the form of second cam rings (8) and third cam track control means in the form of a cage (14) with, held within it so that they cannot be displaced in the peripheral direction, rolling bodies (9) narrowing conically to both ends, which rolling bodies (9) roll on the first (7) and second (8) cam rings, one (7, 8, 14) of the cam track control means being connected to the shaft (5) and another (7, 8, 14) of the cam track control means being torsionally connected to one of the rotation bodies (3, 4) and the remaining cam track control means (7, 8, 14) being connected to the casing (2), characterised in that the rolling bodies (9) are provided with bevel-wheel teeth (51), in that the surfaces, directed towards the rolling bodies (9), of the cam tracks (53) of the cam rings (7, 8) are arranged in a rotationally symmetrical area corresponding to the surface of the rolling bodies (9) and are provided with corresponding bevel-wheel teeth (54), and in that, as a maximum, one cam track control with a first and a second cam ring (7, 8) and rolling bodies (9) is provided for each rotation body (3, 4).