ROTOR-PISTON INTERNAL COMBUSTION ENGINE Russian patent published in 1997 - IPC

FIELD: engine engineering. SUBSTANCE: engine has housing the shape of the working chamber of which deflects from an equidistant curve of a theoretical trochoid. The working chamber is provided with a rotor-piston with radial sealing member. The engine also has synchronizing gear, the gear ratio of engaged members made up as a gear wheel being variable . The initial curves of the shape of the gears have projections and hollows. The ratio of the number of the projections and hollows on the engaged wheel is equal to the ratio of lengths of the initial curves. EFFECT: enhanced efficiency. 2 dwg