Curved bucket aft shank walls for stress reduction
AssigneeGeneral Electric Company
InventorRobert Alan Brittingham
Life of this patent
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Abstract
A turbine bucket comprising an airfoil portion and a shank portion with a substantially horizontal platform radially therebetween, the shank portion having a forward shank wall and an aft shank wall; at least the aft shank wall convexly curved from one side of the bucket to an opposite side of the bucket.
Claims12
A turbine bucket comprising an airfoil portion and a shank portion with a substantially horizontal platform radially therebetween, said shank portion having a forward shank wall and an aft shank wall;
- at least said aft shank wall convexly curved from one side of the bucket to an opposite side of the bucket.
A turbine bucket comprising an airfoil portion and a shank portion with a substantially horizontal platform radially therebetween, said shank portion having a forward shank wall and an aft shank wall;
- said aft shank wall convexly curved from one side of the bucket to an opposite side of the bucket;
- wherein said internal cooling circuit includes a plurality of cavities in said shank portion and said airfoil portion and wherein one of said cavities lies adjacent said aft shank wall;
- and further wherein said airfoil portion includes a leading edge and a trailing edge, said trailing edge overhanging said aft shank wall.
Dependencies are inferred from the claim text.