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US 8,753,093 B2Granted
Bonded turbine bucket tip shroud and related method
AssigneeGeneral Electric Company
InventorGary Liotta
Life of this patent
Estimating the term…
Abstract
A turbine bucket includes an airfoil portion and a tip shroud at a radially outer end of the airfoil portion. The tip shroud includes a first radially inner tip shroud component formed integrally with the airfoil portion and composed of a first metal material, and a second radially outer structural tip shroud component composed of a second metal material bonded to the first radially inner tip shroud component.
Claims18
A turbine bucket comprising:
- an airfoil portion;
- and
- a tip shroud at a radially outer end of said airfoil portion including a first radially inner tip shroud component formed integrally with said airfoil portion and composed of a first metal material, and a second radially outer structural tip shroud component composed of a second metal material bonded to said first radially inner tip shroud component, wherein said second metal material has a higher-temperature capability than said first metal material.
A turbine bucket comprising an airfoil portion;
- and a tip shroud at a radially outer end of said airfoil portion including a first radially inner tip shroud component formed integrally with said airfoil portion and composed of a first metal material, and a second radially outer structural tip shroud component composed of a second metal material bonded to said first radially inner tip shroud component;
- and wherein said second metal material has a lower density than said first metal material.
A turbine bucket comprising:
- an airfoil portion;
- and
- a tip shroud at a radially outer end of said airfoil portion, said tip shroud including a first radially inner component formed integrally with said airfoil portion and composed of a first metal material, and a second radially outer component composed of a one or more metal materials bonded together to form the second radial outer component, which is bonded to said first metal material, said second metal material made up of one or more components having a higher-temperature capability, and/or or a lower density than said first metal material.
Dependencies are inferred from the claim text.