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US 11,952,917 B2Granted
Vane multiplet with conjoined singlet vanes
AssigneeRtx Corporation
InventorsDavid J. Wasserman, Raymond Surace
Life of this patent
Estimating the term…
Abstract
A vane multiplet includes first and second ceramic matrix composite (CMC) singlet vanes that are arranged circumferentially adjacent each other. Each of the CMC singlet vanes includes an airfoil section and a platform at one end of the airfoil section. The platform defines forward and trailing platform edges and first and second circumferential side edges. A CMC overwrap conjoins the CMC singlet vanes. The CMC overwrap includes fiber plies that are fused to the platforms of the CMC singlet vanes.
Claims15
A vane multiplet comprising:
- first and second ceramic matrix composite (CMC) singlet vanes arranged circumferentially adjacent each other, each of the first and second CMC singlet vanes including an airfoil section and a platform at one end of the airfoil section, the platform defining forward and trailing platform edges and first and second circumferential side edges;
- a CMC overwrap conjoining the first and second CMC singlet vanes, the CMC overwrap including fiber plies that are fused to both the platform of the first CMC singlet vane and the platform of the second CMC singlet vane;
- and
- an insert, and at least a portion of the fiber plies wrap around the insert and define a dovetail.
1 more element
A gas turbine engine comprising:
- a compressor section;
- a combustor in fluid communication with the compressor section;
- and
- a turbine section in fluid communication with the combustor, the turbine section including:
- a carrier having a doveslot,
- vane multiplets each including,
- first and second ceramic matrix composite (CMC) singlet vanes arranged circumferentially adjacent each other, each of the first and second CMC singlet vanes including an airfoil section and a platform at one end of the airfoil section, the platform defining forward and trailing platform edges and first and second circumferential side edges, and
- a CMC overwrap conjoining the first and second CMC singlet vanes, the CMC overwrap including fiber plies that are fused to both the platform of the first CMC singlet vane and the platform of the second CMC singlet vane, the fiber plies defining a dovetail fitting with the doveslot to secure the vane multiplet to the carrier.
5 more elements
Dependencies are inferred from the claim text.