Rotary internal combustion engine

A rotary internal combustion engine, comprising:

• a body including four L shaped fragments;
• wherein, when the L-shaped fragments are connected, they form two mutually perpendicular ring-shaped housings with a plurality of ribs on the outer surface and an annular groove inside each housing;
• and
• wherein the L-shaped fragments further form two passages, each of which contains a torus-shaped rotor adapted to move along the annular groove, and
• wherein each torus-shaped rotor includes longitudinal notches located outside or inside the rotor, forming cavities between the rotor and annular groove surface, and
• the longitudinal notches are connected with combustion chambers located outside the walls, and
• the ring-shaped housings include intake and exhaust ports, the intake port for delivering air into and exchange port for discharging exhaust out of the cavities between the rotor and surfaces of the grooves, and
• wherein, the rotors are interconnected by a kinematic chain of rotation synchronization made of successively engaged gears, one of which is engaged with one torus-shaped rotor, and a least one of the gears is engaged with an output shaft, which is rigidly connected with another torus-shaped rotor in order to provide rotation of the torus-shaped rotors at equal rotation speed.