GAS-TURBINE ENGINE COMPRESSOR STATOR Russian patent published in 2001 - IPC

FIELD: aircraft and ground gas-turbine engines. SUBSTANCE: compressor stator has inner and outer casings, as well as running rings that form annular cavities together with inner casing. Novelty is that running rings are joined together through annular-projection-slot joint with aid of guide- vane rings which are secured under inner casing by means of radial screws; running rings are held in position relative to guide-vane rings in circumferential direction by means of axial pins. Said design provides for eliminating compressed air leakage and wear of running rings caused by their friction on inner casing of compressor. EFFECT: enhanced reliability and efficiency of compressor. 2 dwg