| 摘要 |
Casing cover ( 10 ) in a jet engine, comprising two coaxial shells ( 36, 38 ) arranged one inside the other and joined fixedly by radial envelopes ( 40 ) inside which extend radial arms ( 26 ) of the casing, the cover being fastened at its downstream end to an element of the casing and bearing axially at its upstream end on another element of the casing, and the cover having, in the free state, an axial dimension (D) of less than the axial distance (L) between the points where its downstream end is fastened to the casing and the points where its upstream end bears axially on the casing, and being tensioned axially when it is mounted on and fastened to the casing.
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