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Title: Airfoil with CMC liner and multi-piece monolithic ceramic shell

Abstract

An airfoil includes an airfoil section that has an airfoil wall that surrounds a cavity. The airfoil wall includes an exterior monolithic ceramic shell and an interior CMC liner that has CMC plies. An outermost ply of the CMC plies forms tabs that are raised from an underlying ply so as to define a slot. The exterior monolithic ceramic shell includes an underlapping shell piece and an overlapping shell piece. The underlapping shell piece has a portion disposed in the slot and bonded with the tabs. The overlapping shell piece extends over the tabs and is bonded to the tabs. There are channels bounded by adjacent ones of the tabs, the underlapping shell piece, and the overlapping shell piece. Channel orifices through the CMC liner connect the cavity and the channels.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Raytheon Technologies Corp., Farmington, CT (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1892752
Patent Number(s):
11286783
Application Number:
16/859,198
Assignee:
Raytheon Technologies Corporation (Farmington, CT)
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:  
FE0031622
Resource Type:
Patent
Resource Relation:
Patent File Date: 04/27/2020
Country of Publication:
United States
Language:
English

Citation Formats

Martin, Thomas J., Holowczak, John E., Kennedy, Matthew B., Croteau, Paul F., and Attridge, Paul. Airfoil with CMC liner and multi-piece monolithic ceramic shell. United States: N. p., 2022. Web.
Martin, Thomas J., Holowczak, John E., Kennedy, Matthew B., Croteau, Paul F., & Attridge, Paul. Airfoil with CMC liner and multi-piece monolithic ceramic shell. United States.
Martin, Thomas J., Holowczak, John E., Kennedy, Matthew B., Croteau, Paul F., and Attridge, Paul. Tue . "Airfoil with CMC liner and multi-piece monolithic ceramic shell". United States. https://www.osti.gov/servlets/purl/1892752.
@article{osti_1892752,
title = {Airfoil with CMC liner and multi-piece monolithic ceramic shell},
author = {Martin, Thomas J. and Holowczak, John E. and Kennedy, Matthew B. and Croteau, Paul F. and Attridge, Paul},
abstractNote = {An airfoil includes an airfoil section that has an airfoil wall that surrounds a cavity. The airfoil wall includes an exterior monolithic ceramic shell and an interior CMC liner that has CMC plies. An outermost ply of the CMC plies forms tabs that are raised from an underlying ply so as to define a slot. The exterior monolithic ceramic shell includes an underlapping shell piece and an overlapping shell piece. The underlapping shell piece has a portion disposed in the slot and bonded with the tabs. The overlapping shell piece extends over the tabs and is bonded to the tabs. There are channels bounded by adjacent ones of the tabs, the underlapping shell piece, and the overlapping shell piece. Channel orifices through the CMC liner connect the cavity and the channels.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2022},
month = {3}
}

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