Internal combustion engine having a rotating piston assembly

An internal combustion engine having a housing including mixture inlet and exhaust gas outlet openings, a rotating piston assembly situated within said housing, and a drive shaft defining an axis of rotation, the rotating piston assembly comprising:

• a cylinder which rotates about its longitudinal axis, said cylinder including a transverse end wall having at least one slit formed therein and at least one interior side surface which extends in the direction of said longitudinal axis;
• a least one arcuate piston element having a free end defining a sealing surface, said piston element being situated within the cylinder and pivotably mounted at the end opposite to its free end to the cylinder for pivotal movement in the radial direction of the cylinder;
• at least one valve slide displaceably supported within a slit of the transverse end wall;
• lever means for each piston element for mounting the free end of said piston element to said housing eccentrically of the axis of rotation;
• means within the cylinder for engaging the sealing surface of the piston element;
• at least one work chamber defined by the piston element, an interior side surface and the transverse end wall;
• and
• means connected to the housing and the valve slide to control the movements of the valve slide to produce compulsory movement of the valve slide in accordance with the rotational movement of the cylinder, such that the slit alternately aligns itself with the inlet and outlet openings.