Patent ID: 6659472
Filing Date: 2003-12-09
Classification: F01D,F02C,F16J

Abstract:
A gas turbine comprising:a turbine nozzle retaining ring having a generally axially facing first surface; a shroud segment having a second surface in axial opposition to said first surface; one of said first and second surfaces defining a cavity opening generally axially toward another of said first and second surfaces; a flexible seal in said cavity including a seal body having a first, generally U-shaped portion in cross-section and a pair of reversely extending, generally U-shaped marginal portions in cross-section along opposite sides of said U-shaped portion, said marginal portions in sealing engagement with an interior surface of the cavity in said one surface and said another of said first and second surfaces, respectively; and means for releasably retaining said seal body in said cavity in a compressed state such that said seal body lies wholly within said cavity, said retaining means enabling release of said seal body from said compressed state in response to turbine operating conditions.