ROTARY-PISTON ENGINE Russian patent published in 2007 - IPC F01C1/44 F02B53/00 

FIELD: mechanical engineering; internal combustion engines.

SUBSTANCE: proposed rotary-piston internal combustion engine has body with cylindrical space and end face covers, rotor with longitudinally orientated shaped slots installed concentrically over circumference and forming, together with end face walls of rotor, working cylinders, and pistons with fixing guide pins rigidly secured in rotor body and freely passed through crescent-shaped holes, pins being orientated in longitudinal direction. Circular cavities eccentrically displaced relative to axis of rotor are made on inner surfaces of end face covers of body. Disk with holes uniformly spaced over circumference are fitted on said cavities. Cranks are installed for movement n holes of disk. Axles of their rotation are parallel to fixing and guide pins are rigidly coupled with rotor and movable coupled with disk by means of matching washers. Tenons of cranks are coupled with free ends of guide pins through connecting rods.

EFFECT: increased speed, reliability and manufacturability of engine.

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