초록

A compressor for a gas turbine engine has a split case and a split stator vane inner shroud. Selected rotatable stator vanes longitudinally restrain the shroud and seal carried thereon to retain the desired roundness.

대표청구항 ▼

A compressor for a gas turbine engine comprising: a multi-stage compressor rotor; an axially split compressor case surrounding said rotor; at least one stage of a plurality of variable pitch stator vanes, each vane rotatably secured to said case, each vane longitudinally restrained by said case; a p

A compressor for a gas turbine engine comprising: a multi-stage compressor rotor; an axially split compressor case surrounding said rotor; at least one stage of a plurality of variable pitch stator vanes, each vane rotatably secured to said case, each vane longitudinally restrained by said case; a plurality of inner shroud segments segments, each segment extending through an arc of between 45 degrees and 180 degrees; a seal land secured to the inner surface of each segment; a knife edge seal secured to said rotor and sealing against each of said seal lands; said stator vanes each rotatably secured to a shroud segment; and constraint means for longitudinally with respect to said vane constraining each of said shroud segments from inward movement toward said rotor on only those stator vanes located adjacent to the ends of each shroud segment.