Patent ID: 6349696
Filing Date: 2002-02-26
Classification: F01C

Abstract:
Rotary piston internal combustion engine having a substantially circular cylindrical compression chamber (3) and a substantially circular cylindrical working chamber (4), rotary pistons (7, 8) being arranged in the compression chamber (3) and in the working chamber (4), slides (19) being provided in the compression chamber (3) and in the working chamber (4), arranged movable in radial direction to make sealing contact with the surface of the particular rotary piston (7, 8), and a first exhaust aperture (26) being provided on the periphery of the working chamber, characterized in that additional exhaust apertures (27) are provided in the working chamber, closable by means of exhaust valves (15), which exhaust valves (15) are closable and openable successively by an adjusting means (17), the exhaust valves (15) being in the form of rotary slides whose axes are substantially parallel to the axis of said working chamber (4) and said compression chamber (3).