COMPRESSOR AND GAS TURBINE Russian patent published in 2023 - IPC F04D29/54 F02C1/00 

FIELD: compressor; gas turbines.

SUBSTANCE: compressor includes a rotor including a plurality of disks, a shaft section connected on the downstream side of the disks; and blade crowns of the rotor mounted on a plurality of discs; a stator including a compressor housing; and a plurality of stator blade rims, each of which is located between respective adjacent rotor blade rims; a straightening vane including blades spaced at intervals in the circumferential direction on the downstream side of the downstream disk, and inner bands connecting the blades in the circumferential direction on the inner side in the radial direction; and an inner case positioned on the downstream side of disk with a gap between the disk and the inner case. The inner casing includes an outer surface of the peripheral wall having grooves accommodating internal bandages and forming, together with the inner surface of the compressor casing, a diffuser on the downstream side of the grooves, and an inner surface of the peripheral wall forming an air outlet cavity.

EFFECT: in the area in the grooves on the downstream side, an air outlet hole is formed.

9 cl, 5 dwg