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US 10,519,796 B2Granted
Variable area turbine vane row assembly
AssigneeUnited Technologies Corporation
InventorEric A. Grover
Life of this patent
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Abstract
The present disclosure relates generally to a variable area turbine vane row assembly. In an embodiment, the variable area turbine vane row assembly includes rotatable vanes that are circumferentially biased and/or axially biased with respect to adjacent fixed vanes. In another embodiment, the variable area turbine vane row assembly includes multiple rotatable vanes positioned between adjacent fixed vanes, which may optionally be circumferentially biased and/or axially biased with respect to each other as well as to the adjacent fixed vanes.
Claims11
A variable area turbine vane row assembly, comprising:
- a first fixed vane located in a first circumferential vane row organized circumferentially around a rotational axis of a gas turbine engine;
- a second fixed vane located in the first circumferential vane row, the second fixed vane being proximate the first fixed vane;
- and
- a plurality of rotatable vanes located in the first circumferential vane row, the plurality of rotatable vanes being positioned between the first fixed vane and the second fixed vane;
- wherein no other fixed vanes are positioned between the first fixed vane and the second fixed vane within the first circumferential vane row, and
- wherein the first fixed vane, the second fixed vane, and the plurality of rotatable vanes form a segment of the first circumferential vane row.
3 more elements
Dependencies are inferred from the claim text.