| 摘要 |
A structural member that remains near a constant length when subjected to varying thermal loads. The structure includes an outer bi-metallic housing composed of inner and outer concentrically spaced casings attached to one another at one of their ends and left free to expand and contract at the other of their ends. The casings are made of materials having different coefficients of expansion and therefore their lengths will vary with respect to one another as their thermal environment changes. A compensator strut is slidably mounted in the outer housing. A compensating drive linkage mounted on the free ends of the inner and outer casings so as to be rotated by relative movement between the casings is connected to the strut and causes sliding movement thereof to maintain the structure at a constant length when the components thereof change lengths due to expansion and contraction.
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