FIELD: engine engineering. SUBSTANCE: engine has working cylinder and compression cylinder. The gear valve mechanism is set in operation by the output shaft of the engine. Working fluid is compressed in the compression cylinder. The working fluid is saturated simultaneously with water vapor. The water is supplied through pores of the evaporator. The compressed working fluid is heated in the heat exchanger and enters the working cylinder. After expansion the working fluid gives the heat to the turbine gas-expansion machine wherein an additional expansion of the working fluid occurs, the moisture is separated, and the fluid is dried. The dried working fluid and water condensate enter the compressor cylinder. The cycle is repeated. The output shaft of the gas- expansion machine is connected with the electric generator or air supercharger. EFFECT: enhanced efficiency. 8 cl, 8 dwg
