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US 10,767,494 B2Granted
CMC aerofoil
AssigneeROLLS-ROYCE plc
InventorSteven Hillier
Life of this patent
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Abstract
The disclosure relates to a ceramic matrix composite (CMC) aerofoil. Example embodiments include an aerofoil comprising first and second tubular CMC cores (302, 303) extending along a longitudinal axis of the aerofoil; and an outer CMC layer surrounding the first and second tubular CMC cores (302, 303) and defining an outer shape of the aerofoil having leading and trailing edges, wherein fibres within a wall of the second tubular CMC core extend to the trailing edge of the aerofoil.
Claims20
An aerofoil comprising:
- first and second tubular Ceramic Metal Composite (CMC) cores extending along a longitudinal axis of the aerofoil;
- and
- an outer CMC layer surrounding the first and second tubular CMC cores and defining an outer shape of the aerofoil having leading and trailing edges,
- wherein fibres within a wall of the second tubular CMC core extend to the trailing edge of the aerofoil.
1 more element
A method of forming a CMC aerofoil, comprising the steps of:
- providing first and second tubular CMC cores;
- surrounding the first and second tubular CMC cores with an outer CMC layer to define an outer shape of the aerofoil having leading and trailing edges, wherein fibres within a wall of the second tubular CMC core extend to the trailing edge of the aerofoil;
- and
- consolidating the first and second CMC cores with the outer CMC layer to form the CMC aerofoil.
1 more element
Dependencies are inferred from the claim text.