IMPROVED METHOD OF TURBINE COMPRESSOR CHARACTERISTICS Russian patent published in 2021 - IPC F01D17/16 F01D9/04 F02C7/42 F04D27/02 

FIELD: engine building.

SUBSTANCE: modernization method includes removal of the first selected crown of stator blades from multiple stages of compressor, note here that first selected blade of stator blades has first angle of twisting at inlet and comprises first set of fixed stator vanes. Each stator blade from the first set of fixed stator blades has the stator blade first angle. Method also includes providing a first improved crown of stator blades for replacing the first selected crown of stator blades. First improved blade of stator blades has second set of fixed stator blades, each of which has a second angle of the stator blade, which is less than the first angle of the stator blade. Method also includes replacement of first selected crown of stator blades by first improved crown of stator blades to obtain high compression ratio and throughput capacity compared to first selected crown of stator blades.

EFFECT: described is a method and an apparatus for upgrading a gas turbine engine to obtain improved characteristics at an ambient temperature of more than 35 °C.

10 cl, 6 dwg