ROTORY-PISTON ICE Russian patent published in 2014 - IPC F02B55/02 

FIELD: engines and pumps.

SUBSTANCE: invention relates to propulsion engineering. proposed engine comprises housing with working ring. Rotors are arranged on the shaft in working chambers. First rotor acts as the compressor rotor and is composed by spring-loaded working flap. Second rotor acts as the turbine rotor composed of the barrel with bottom rigidly secured at the shaft and features L-like spring-loaded working flap. Said barrel has a bulge in direction of the shaft rotational axis, its width being equal to first rotor width. Combustion chamber is arranged in the hole of working ring wide part. Gas distribution barrel interacts with combustion chamber and incorporates the shaft engaged with engine shaft. First rotor sealing segment is arranged on working ring inner cylindrical surface, under the combustion chamber. Second rotor sealing segment is arranged on working ring outer cylindrical surface, above the combustion chamber. Said sealing segments feature variable depth. Counter pressure channels curved through 180 degrees are made inside said sealing segments. Second rotor bulge inner cylindrical surface has saw-like recesses in width equal to that of said bulge and in length over second rotor bulge circle smaller than that of smaller base of second rotor sealing segment.

EFFECT: higher efficiency and better ecological properties.

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