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US 10,329,925 B2Granted
Vibration-damped composite airfoils and manufacture methods
AssigneeUnited Technologies Corporation
InventorsSreenivasa R. Voleti, Christopher M. Quinn
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Abstract
A turbine engine component (100) comprises a fiber structure (125, 126) forming at least a portion of an airfoil (102). A matrix (128) embeds the fiber structure. A carbon nanotube filler (130) is in the matrix.
Claims22
A turbine engine component (100) comprising:
- a fiber structure (125, 126) forming at least a portion of an airfoil of a blade or stator vane;
- a matrix (128) embedding the fiber structure;
- and
- a carbon nanotube filler (130) in the matrix, wherein the carbon nanotube filler (130) in the matrix is in a multi-ply thickness of the fiber structure, inter-ply and intra ply.
1 more element
A method for manufacturing a turbine engine component, the turbine engine component comprising:
- a fiber structure (125, 126) forming at least a portion of an airfoil (102);
- a matrix (128) embedding the fiber structure;
- and
- a carbon nanotube filler (130) in the matrix,
- the method comprising:
- positioning the fiber structure or a precursor thereof in a mold;
- and
- after the positioning, injecting into the mold a mixture of the carbon nanotube filler and a precursor of the matrix.
5 more elements
Dependencies are inferred from the claim text.