HEAT ENGINE Russian patent published in 1999 - IPC

FIELD: mechanical engineering. SUBSTANCE: heat engine has cylinder block with crankcase accommodating crank-and-connecting rod mechanism, air preparation, supply, lubrication and starting systems. Intake manifold is pneumatically connected through regenerator and cooler with inner space of air cyclone. Exhaust manifold is pneumatically coupled through regenerator with supercharging system, ratio of cylinder volume to combustion chamber volume being 15: 1, minimum. Low boiling liquid with volumetric expansion coefficient is used as working medium. Engine can operate both as two-stroke and four-stroke machine. EFFECT: improved performance characteristics of heat engine. 3 cl, 8 dwg