ROTOR ENGINE Russian patent published in 1995 - IPC

FIELD: engine engineering. SUBSTANCE: housing of the engine has torus-like space provided with ports for supplying and discharging a working fluid. Pistons are secured to the concentric rotors in pair and mounted inside the space. The rotors have two torus-like spaces arranged concentrically with respect to the fixed axle. Additional pistons are received in these spaces to define combustion chamber and extinguishing chamber respectively. The additional pistons are mounted on the different rotors coaxially and in radial direction relatively to the main pistons. Gas discharging passageways are made in the housing. EFFECT: improved design. 7 cl, 14 dwg