Axial entry turbine bucket dovetail with integral anti-rotation key

Axial entry turbine bucket dovetail with integral anti-rotation key

Axial entry dovetails on buckets are installed axially into generally complementary-shaped female dovetails about the rim of the turbine wheel. The buckets include bucket covers having an interference fit such that upon installation, the buckets tend to rotate, which causes radial inward displacemen...

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Hauptverfasser: Vogan, James, Caruso, David, Roberts, Dennis, Ryan, Kiernan
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Sprache:eng
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creator Vogan, James
Caruso, David
Roberts, Dennis
Ryan, Kiernan
description Axial entry dovetails on buckets are installed axially into generally complementary-shaped female dovetails about the rim of the turbine wheel. The buckets include bucket covers having an interference fit such that upon installation, the buckets tend to rotate, which causes radial inward displacement of the buckets. To eliminate the bucket rotation and radial displacement, the male dovetails mount an anti-rotation key for reception in a generally complementary-shaped recess at the base of the female dovetail. The anti-rotation key in the slot eliminates rotation and radial displacement of the bucket, maintaining the buckets on radii and enables the bucket covers to be machined to proper diameters.
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The buckets include bucket covers having an interference fit such that upon installation, the buckets tend to rotate, which causes radial inward displacement of the buckets. To eliminate the bucket rotation and radial displacement, the male dovetails mount an anti-rotation key for reception in a generally complementary-shaped recess at the base of the female dovetail. The anti-rotation key in the slot eliminates rotation and radial displacement of the bucket, maintaining the buckets on radii and enables the bucket covers to be machined to proper diameters.</abstract><oa>free_for_read</oa></addata></record>
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title Axial entry turbine bucket dovetail with integral anti-rotation key
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