| 摘要 |
An annular vane assembly for a gas turbine engine, the assembly including a vane segment (1) comprising an arcuate rail (5) and at least one vane (7) that extends radially inwardly from the arcuate rail (5), the assembly also including a hollow cylindrical casing (11) in the inside curved surface (13) of which is formed an annular groove (15) for receiving the arcuate rail (5) of the vane segment (1), the arcuate rail (5) being secured in the annular groove (15) by means of one or more resilient strips (33) interposed between the rail (5) and the groove (15), the or each resilient strip (33) comprising a planar main body (41) and sprung wings (43) that extend to either side of the main body (41), the wings (43) being angled with respect to the plane of the main body (41), the or each resilient strip (33) being moveable circumferentially between (i) a first position in which the strip (33) exerts a force radially on the arcuate rail (5) to secure the rail (5) in the annular groove (15) and (ii) a second position in which the wings (43) of the strip (33) occupy recesses (49) in the assembly to relieve the radial force and release the rail (5) in the groove (15).
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