| 摘要 |
A turbine flow-path apparatus, for a gas turbine engine, includes a flow-path component 18 exposed at least partially to a primary combustion gas flow-path of the engine. The component comprises a low-ductility material. A metallic annular stationary structure 44 surrounds the component, and a first spring element 86 resiliently urges the component in a first axial direction. The spring element may be disposed between the stationary structure and the component. The stationary structure may include a bearing surface 52 which bears against the component so as to restrain it from axial movement in the first direction. A second spring element (386, figure 7) may be disposed between the stationary structure and the component to resiliently urge the component in a second, and opposite, axial direction. The component may be an arcuate shroud segment comprising a ceramic matrix composite material. The spring element(s) may be an annular wave spring or a convoluted annular seal. |
