ROTARY PISTON INTERNAL COMBUSTION ENGINE Russian patent published in 2009 - IPC F02B53/06 F02B55/02 F02B55/16 F01C1/356 

FIELD: motors and pumps.

SUBSTANCE: rotary piston internal combustion engine consists of a housing with side cover, rotor with cylindrical extension, combustion chamber, air supply channels and combustion products exhaust channels, spring-loaded hard piston and cam-shaft gear for hard piston drive. The combustion chamber is represented as a part of engine capacity. The hard piston is installed in the groove made in the housing. There is a pre-chamber in the housing wall connected with engine capacity and combustion chamber by means of inlet and outlet chambers provided with pilot spools. The inlet and outlet channels are placed at the opposite sides from the hard piston. The said hard piston is provided with an open-end hole. The cam-shaft gear is installed in the said hole and represented as a cam shaft. The cam shaft is parallel to the rotor and is in cinematic connection with it. The fuel injector and spark plug are installed in the pre-chamber. There are plates installed on the working surfaces of the cylindrical rotor extension and hard piston.

EFFECT: simplified structure, improved reliability and service life of engine.

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