United Technologies Corporation

David E Heumann

William G Hoop

M Stefan Maier

A stator vane assembly for a gas turbine engine includes a plurality of stator vane segments and fasteners. Each stator vane segment includes an inner radial platform, an outer radial platform, at least one airfoil extending between said platforms, and a first mounting flange extending radially outward from said outer radial platform. Each first mounting flange is aligned with a second mounting flange extending radially inward from an outer case surrounding the stator vane assembly. Each fastener includes a bolt extending through the first and second mounting flanges, a nut for threaded engagement with the bolt, and apparatus for preventing vibration of the fasteners.

Gas turbine stator vane assembly

A truncated spherical ball enters a cavity in a link using an entry slot in the link away from the end of the link and axially extending toward the link arm. Passage of the rotated ball through the entry slot is prevented by excess thickness of the ball relative to slot width until the link is expanded by heating. Full bearing surface exists at the end and sides of the link cavity and bearing surfaces are not contacted while forcing a fit. The ball is secure from inadvertent removal.

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Jupiter, FL, United States of America

David E Heumann