Gas turbine blade with intra-span snubber
Patent
·
OSTI ID:1149933
A gas turbine blade (10) including a hollow mid-span snubber (16). The snubber is affixed to the airfoil portion (14) of the blade by a fastener (20) passing through an opening (24) cast into the surface (22) of the blade. The opening is defined during an investment casting process by a ceramic pedestal (38) which is positioned between a ceramic core (32) and a surrounding ceramic casting shell (48). The pedestal provides mechanical support for the ceramic core during both wax and molten metal injection steps of the investment casting process.
- Research Organization:
- NETL (National Energy Technology Laboratory, Pittsburgh, PA, and Morgantown, WV (United States))
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC26-05NT42644
- Assignee:
- Siemens Energy, Inc. (Orlando, FL)
- Patent Number(s):
- 8,790,082
- Application Number:
- 12/848,456
- OSTI ID:
- 1149933
- Country of Publication:
- United States
- Language:
- English
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