Title: Ceramic matrix composite (CMC) hollow blade and method of forming CMC hollow blade

Abstract

A ceramic matrix composite (CMC) hollow blade includes a CMC airfoil, which includes at least one airfoil CMC ply, at least one cavity CMC ply, and an insert. The airfoil CMC ply defines the contour of the CMC airfoil including a first edge, a second edge opposite the first edge, a first side extending from the first edge to the second edge, and a second side opposite the first side. The cavity CMC ply defines a cavity within the CMC airfoil. The insert is located between the first edge and the cavity. The insert is wrapped by a CMC ply such that the CMC ply extends along the insert from the first side of the CMC airfoil across the mean camber line of the CMC airfoil and to the second side of the CMC airfoil. The CMC ply terminates on the second side of the CMC airfoil.

Inventors:

de Diego, Peter; Kittleson, Jacob John

Issue Date:

Tue Oct 15 00:00:00 EDT 2019

Research Org.:

General Electric Co., Schenectady, NY (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1600150

Patent Number(s):

10443410

Application Number:

15/624,893

Assignee:

General Electric Company (Schenectady, NY)

Patent Classifications (CPCs):

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES

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C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

C04B35/622 - Forming processes
C04B35/71 - Ceramic products containing macroscopic reinforcing agents

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES

F01D5/147 - {Construction, i.e. structural features, e.g. of weight-saving hollow blades
F01D5/282 - {Selecting composite materials, e.g. blades with reinforcing filaments}
F01D5/284 - {Selection of ceramic materials}

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

F05D2230/31 - Layer deposition
F05D2240/122 - related to the trailing edge of a stator vane
F05D2240/304 - related to the trailing edge of a rotor blade
F05D2300/6033 - Ceramic matrix composites [CMC]
F05D2300/6034 - Orientation of fibres, weaving, ply angle

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

Y02T50/60 - Efficient propulsion technologies

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DOE Contract Number:  

FC26-05NT42643

Resource Type:

Patent

Resource Relation:

Patent File Date: 06/16/2017

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE