Gas turbine blade with intra-span snubber
Abstract
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.
- Inventors:
- Publication Date:
- Research Org.:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1149933
- Patent Number(s):
- 8,790,082
- Application Number:
- 12/848,456
- Assignee:
- Siemens Energy, Inc. (Orlando, FL)
- DOE Contract Number:
- FC26-05NT42644
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Merrill, Gary B., and Mayer, Clinton. Gas turbine blade with intra-span snubber. United States: N. p., 2014.
Web.
Merrill, Gary B., & Mayer, Clinton. Gas turbine blade with intra-span snubber. United States.
Merrill, Gary B., and Mayer, Clinton. 2014.
"Gas turbine blade with intra-span snubber". United States. https://www.osti.gov/servlets/purl/1149933.
@article{osti_1149933,
title = {Gas turbine blade with intra-span snubber},
author = {Merrill, Gary B. and Mayer, Clinton},
abstractNote = {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.},
doi = {},
url = {https://www.osti.gov/biblio/1149933},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 29 00:00:00 EDT 2014},
month = {Tue Jul 29 00:00:00 EDT 2014}
}
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Works referencing / citing this record:
Turbine blade mid-span shroud
patent, March 2017
- Collins, Daryl R.; Butz, David
- US Patent Document 9,587,496
Turbine blade mid-span shroud assembly
patent, February 2017
- Spracher, David Randolph; Bruce, Kevin Leon; Harris, Jr., John Wesley
- US Patent Document 9,574,450
Tapered part-span shroud
patent, January 2017
- Chouhan, Rohit; Davis, Holly Renae; Valliappan, Lakshmanan
- US Patent Document 9,546,555