CLOSED CYCLE THERMAL CRANKSHAFT MOTOR Russian patent published in 2020 - IPC F02G1/04 F01B29/00 

FIELD: machine building.

SUBSTANCE: invention relates to heat engines. Essence of the invention consists in the fact, that the closed-cycle thermal engine contains at least two pairs of cylinders, working pistons with rods arranged inside each cylinder one by one, connected by slides and connecting rods with crankshaft, with possibility of movement from lower dead point to upper dead point and separating volume of each cylinder into two cavities, above and aft and below-piston. Each pair of cylinders consists of expansion cylinder and cylinder of compressor with inlet and outlet control valves of expansion cylinders, suction controlled valves of compressor cylinders, pressure automatic valves of compressor cylinders. Controlled valves are equipped with drive from crankshaft. Engine is equipped with heat exchanger-heater, heat exchanger-cooler and gas pipelines. Each expansion cylinder is communicated via inlet valve and gas line with heat exchanger-heater and communicated via pressure valve and gas line with heat exchanger-cooler. Each cylinder of compressor is communicated via suction valve and gas line with heat exchanger-cooler and communicated via injection valve and gas line with heat exchanger-heater. Compressor cylinders are additionally equipped with channel connecting cylinders and controlled bypass valves installed in joints of channel with cylinders of compressor, with possibility of opening each of controlled valves at the moment of piston of compressor - one at top dead centre, and the other in lower dead point, wherein expansion cylinders have volume larger than that of compressor cylinders.

EFFECT: technical result is higher engine efficiency.

1 cl, 2 dwg