Invention Grant
- Patent Title: Method for replacing metal airfoil with ceramic airfoil, and related turbomachine blade
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Application No.: US16270071Application Date: 2019-02-07
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Publication No.: US10907484B2Publication Date: 2021-02-02
- Inventor: Matthew Troy Hafner , John McConnell Delvaux , Thomas Raymond Farrell , Markus Feigl
- Applicant: General Electric Company
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agency: Hoffman Warnick LLC
- Agent Charlotte Wilson
- Main IPC: F01D5/30
- IPC: F01D5/30 ; F01D5/00

Abstract:
A method may include: in a used metal turbomachine blade including a root including a shank, a platform coupled to the shank and an airfoil coupled to the platform, removing the airfoil, leaving a remaining base including the platform, the shank and the root. The method may also form a radially extending opening through the platform into the shank, and insert a ceramic shank nub extending from a ceramic airfoil into the radially extending opening of the remaining base. The ceramic airfoil is fixedly attached to the remaining base. The method allows reuse of the metal shank while providing the lower cooling requirements of a ceramic airfoil.
Public/Granted literature
- US20200256204A1 METHOD FOR REPLACING METAL AIRFOIL WITH CERAMIC AIRFOIL, AND RELATED TURBOMACHINE BLADE Public/Granted day:2020-08-13
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