CLOSED ENERGY CYCLE Russian patent published in 2021 - IPC F01K25/06 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to the field of converting thermal energy into mechanical energy using as a working fluid a mixture of insoluble or slightly soluble in each other substances that are in equilibrium in the liquid and gas phases. A closed energy cycle, in which a mixture of inert gas and liquid, which is in the liquid phase at the beginning of the cycle, is used as a working fluid. The working fluid is fed to the compression phase in the ratio at which the liquid is evaporated due to the heating of the compressed inert gas. Then the working fluid, which is in the gas phase, is heated and sent to the expander to perform work, after which the working fluid is brought to the initial temperature by means of heat exchange and returns to the beginning of the cycle. The temperature of the working fluid is measured at the end of the compression phase and, depending on the temperature, the ratio of inert gas and liquid is adjusted when they are supplied to the compression phase. Argon is used as inert gas, butane is used as a liquid. Freon or saturated hydrocarbon can be used as a liquid.

EFFECT: increases the thermal efficiency of the power cycle.

3 cl, 2 dwg, 1 tbl