GAS TURBINE WITH ADJUSTABLE AIR COOLING SYSTEM Russian patent published in 2017 - IPC F02C7/18 

FIELD: machine engineering.

SUBSTANCE: gas turbine comprises a compressor, a combustion chamber, a turbine and an air cooling system that comprises, at least, one first air cooling line that extends from the first compressor pressure stage to the turbine and, at least, one second air cooling line that comes from the higher second compressor pressure stage to the turbine. The air cooling system of the gas turbine also comprises a connecting line that extends from the second air cooling line to the first air cooling line. The cooling device for cooling the auxiliary cooling airflow that flows from the second air cooling line to the first air cooling line and the control element are located in the connecting line.

EFFECT: ensuring the reliable operation of the air cooling system in a wide operating range of the gas turbine without the need to allow noticeable power losses or efficiency to operate in the design mode.

15 cl, 5 dwg