DOUBLE-CIRCUIT GAS TURBINE UNIT Russian patent published in 2019 - IPC F02K3/115 

FIELD: turbines or turbomachines.

SUBSTANCE: double-circuit gas turbine plant consists of an input device, a fan, an internal circuit and an external circuit. Compressor, combustion chamber, turbine, gas channels of heat exchanger-regenerator, exhaust branch pipe are located inside internal circuit. Inside the external circuit there are air channels of heat exchanger-regenerator, free turbine, outlet channel. Exhaust pipe is located at the fan inlet.

EFFECT: invention increases pressure drop in turbines, transfers all energy from internal circuit to external circuit, which increases efficiency of gas turbine plant.

5 cl, 3 dwg