Gas turbine engine with composite airfoil and preform core
AssigneeGeneral Electric Company
InventorsElzbieta Kryj-Kos, Nicholas Joseph Kray, Arthur William Sibbach, Michael John Franks
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Abstract
A gas turbine engine includes a fan section, a compressor section, combustion section, and turbine section in serial flow arrangement, that defining an engine centerline extending between a forward direction and an aft direction. A composite component, such as an airfoil, extends between a root and a tip, defining a span-wise direction therebetween, and between a leading edge and a trailing edge, defining a chord-wise direction therebetween. The composite component includes a preform core including a first set of fibers as a first set of warp fibers and a first set of weft fibers.
Claims20
A gas turbine engine comprising:
- a fan section, a compressor section, combustion section, and turbine section in serial flow arrangement, and defining an engine centerline extending between a forward direction and an aft direction;
- and
- a composite airfoil provided in one of the fan section, the compressor section, or the turbine section, the composite airfoil extending between a root and a tip, defining a span-wise direction therebetween, and extending between a leading edge and a trailing edge, defining a chord-wise direction therebetween, the composite airfoil comprising:
- a preform core including a first set of fibers comprising a first set of warp fibers and a first set of weft fibers;
- wherein at least 40% of a volume of the first set of fibers is arranged at a first angle relative to the span-wise direction, and wherein the first angle varies among thirty-five degrees to sixty-five degrees (35° to 65°) or varies among negative thirty-five degrees to negative sixty-five degrees (−35° to −65°).
A preform for a component in a turbine engine, the preform comprising:
- a preform core extending in a first direction and a second direction perpendicular to the first direction, the preform core comprising:
- a first set of warp fibers aligned with the first direction;
- a first set of warp fibers aligned with the second direction;
- a second set of warp fibers arranged at a first angle that varies among thirty-five degrees to sixty-five degrees (35° to 65°) relative to the first direction;
- and
- a second set of weft fibers arranged at a second angle that varies among negative thirty-five degrees to negative sixty-five degrees (−35° to −65°) relative to the first direction.
Dependencies are inferred from the claim text.