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Title: 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.:
NETL (National Energy Technology Laboratory, Pittsburgh, PA, and 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) NETL
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. Tue . "Gas turbine blade with intra-span snubber". United States. doi:. 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 = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 29 00:00:00 EDT 2014},
month = {Tue Jul 29 00:00:00 EDT 2014}
}

Patent:

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