| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a turbine flowpath apparatus for a gas turbine engine having a centerline axis. <P>SOLUTION: The apparatus includes: an annular flowpath (56) member of low-ductility material, the flowpath member (56) having a flowpath surface and an opposed back surface, and having a cross-sectional shape including a generally cylindrical forward section (62) and an aft section (64) that extends aft and radially outward at a non-perpendicular, non-parallel angle to the centerline axis; an annular stationary structure (78) surrounding the flowpath member (56); and an annular centering spring (70) disposed between the stationary structure (78) and the flowpath member (56), the centering spring (70) urging the flowpath member (56) towards a centered position within the stationary structure (78). <P>COPYRIGHT: (C)2012,JPO&INPIT |
