TWO-STROKE INTERNAL COMBUSTION ENGINE WITH CHAMBER GAS EXCHANGE CIRCUIT Russian patent published in 2011 - IPC F02B53/08 F01C9/00 F01C19/10 

FIELD: engines and pumps.

SUBSTANCE: two-stroke internal combustion engine with chamber gas exchange circuit includes cylindrical stator and two opposite rotors with pistons. Pistons are connected to working shaft by means of articulation linkages with phase shift close to 180°. Working chambers are located in turn between opposite surfaces of working piston of the main rotor and working surfaces of pistons of additional rotor at the planes symmetrically inclined at an angle of 45 degrees to the plane of diametrical inlet and outlet openings. Blowoff chambers are located between opposite surfaces of blowoff piston of the main rotor and rear surfaces of pistons of additional rotor. Blowoff channels are located symmetrically relative to the plane of diametrical inlet and outlet openings at an angle of 110-115 degrees. In order to seal the chambers, there installed are graphite dampers located in housing (stator).

EFFECT: improving torque smoothness, tightness of combustion chambers and decreasing mechanical losses.

1 cl, 6 dwg