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US 5,492,446 AGranted
Self-aligning variable stator vane
AssigneeGeneral Electric Company
InventorsJames T. Hawkins, Ritchie D. Price, George A. Oxenham
Life of this patent
Estimating the term…
Abstract
A variable stator vane includes an airfoil with an integral outer trunnion having a seat extending integrally therefrom. A threaded stem extends from the seat and includes a coextensive alignment surface that cooperates with a complementary mounting hole in a lever arm which restrains rotation of the lever arm about the stem during assembly for ensuring a predetermined rotational orientation between the lever arm and the airfoil.
Claims11
A variable stator vane comprising:
- an airfoil having an integral outer trunnion for pivotally mounting said airfoil to a stator casing;
- a seat extending integrally from a distal end of said trunnion, and having a pair of opposite, parallel flats;
- a threaded stem extending integrally from said trunnion seat and coaxial with said trunnion, said stem having at least one coextensive first alignment surface;
- and
- a lever arm having a mounting hole at a proximal end thereof being complementary with said trunnion seat, said mounting hole being sized for being installed downwardly over said stem while said first alignment surface restrains rotation of said lever arm about said stem until said mounting hole engages said seat for ensuring a predetermined rotational orientation between said lever arm and said airfoil.
2 more elements
Dependencies are inferred from the claim text.