HEAT ENGINE Russian patent published in 2017 - IPC F02G1/44 F01B9/02 

FIELD: engine devices and pumps.

SUBSTANCE: engine contains two pairs of cylinders located opposite to the crankshaft. The cylinder stems interact with the crankshaft. The working agent, for example air, comes from the feeder to the heat exchanger of the first pair, which outlet is connected to the cavity of the first working cylinder. The outlet of the cavity of the first working cylinder is connected to the cooler. The cavity of the discharging cylinder of the first pair has an inlet connected to the cooler outlet and an outlet port connected to the heat exchanger inlet of the second pair of cylinders. The outlet of the second heat exchanger is connected to the inlet of the working cylinder of the second pair. The discharging cylinder of the second pair, connected to it through the crankshaft, has an inlet connected to the coolant outlet and an outlet port connected to the inlet of the heat exchanger of the first pair.

EFFECT: stable circulation of the working agent in a closed system, that increases the reliability of the engine, possibility of using the engine under the conditions of limited consumption or exclusion of airflow, and increased environmental friendliness due to the absence of exhaust.

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