Case assembly for supporting stator vanes
AssigneeUnited Technologies Corporation
InventorEdmund D. Trousdell
Life of this patent
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Abstract
A case assembly for supporting stator vanes of a gas turbine engine is disclosed. Various construction details and techniques which enable support of the vanes across the flow path of the engine are discussed. The construction details and techniques which provide damping to the vanes and accommodate differential thermal expansion between the vanes and the case assembly are developed. The vane mounting system disclosed is built around the concept of enabling sliding friction between components of the case assembly to dampen vane vibrations.
Claims5
In a gas turbine engine of the type having an engine case assembly and a plurality of vanes extending in a substantially radial direction therefrom, the improvement which comprises:
- a case assembly having
- a wall element,
- a band element extending circumferentially about the wall element and
- a plurality of blocks trapped radially between the band element and the wall element by said band element and said wall element wherein each of said blocks is adapted to engage one of said vanes and is slidable in a generally circumferential direction on one of said elements to dissipate vibratory energy in the vane.
Dependencies are inferred from the claim text.