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Title: Composite airfoil assembly

Abstract

A composite blade assembly for mounting on a turbine wheel includes a ceramic airfoil and an airfoil platform. The ceramic airfoil is formed with an airfoil portion, a blade shank portion and a blade dovetail tang. The metal platform includes a platform shank and a radially inner platform dovetail. The ceramic airfoil is captured within the metal platform, such that in use, the ceramic airfoil is held within the turbine wheel independent of the metal platform.

Inventors:
Issue Date:
Research Org.:
General Electric Co., Schenectady, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1171701
Patent Number(s):
8967974
Application Number:
13/342,599
Assignee:
General Electric Company (Schenectady, NY)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
DOE Contract Number:  
FC26-05NT42643
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Jan 03
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Garcia-Crespo, Andres Jose. Composite airfoil assembly. United States: N. p., 2015. Web.
Garcia-Crespo, Andres Jose. Composite airfoil assembly. United States.
Garcia-Crespo, Andres Jose. Tue . "Composite airfoil assembly". United States. https://www.osti.gov/servlets/purl/1171701.
@article{osti_1171701,
title = {Composite airfoil assembly},
author = {Garcia-Crespo, Andres Jose},
abstractNote = {A composite blade assembly for mounting on a turbine wheel includes a ceramic airfoil and an airfoil platform. The ceramic airfoil is formed with an airfoil portion, a blade shank portion and a blade dovetail tang. The metal platform includes a platform shank and a radially inner platform dovetail. The ceramic airfoil is captured within the metal platform, such that in use, the ceramic airfoil is held within the turbine wheel independent of the metal platform.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {3}
}

Works referenced in this record:

Vane extremity locking system
patent, March 1995


Multi-component blade for a gas turbine
patent, February 1998


Poly-component blade for a gas turbine
patent, August 1998


Poly-component blade for a steam turbine
patent, October 2000


Ceramic turbine airfoils with cooled trailing edge blocks
patent, December 2001


Non-integral fan platform
patent, September 2002


Stator vane assembly for a turbine and method for forming the assembly
patent, April 2003


Turbine blade or turbine vane made of a ceramic foam joined to a metallic nonfoam, and preparation thereof
patent, November 2003


Ceramic matrix composite turbine components
patent, December 2003


Methods and apparatus for fabricating turbine engine airfoils
patent, July 2005


Method for manufacturing articles for high temperature use, and articles made therewith
patent, February 2006


Methods and apparatus for coupling ceramic matrix composite turbine components
patent, May 2006


Separable blade platform
patent, October 2007


Composite blading member and method for making
patent, March 2009


Turbine blade with detached platform
patent, January 2011


    Works referencing / citing this record:

    Turbine blade apparatus
    patent, May 2016