Invention Grant
- Patent Title: Frangible gas turbine engine airfoil with layup change
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Application No.: US16161200Application Date: 2018-10-16
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Publication No.: US11149558B2Publication Date: 2021-10-19
- Inventor: Nitesh Jain , Nicholas Joseph Kray , Kishore Budumuru
- Applicant: General Electric Company
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agency: Dority & Manning, P.A.
- Main IPC: F01D5/28
- IPC: F01D5/28 ; F01D21/04 ; F02K3/06

Abstract:
An airfoil including a plurality of composite plies extending from a leading edge to a trailing edge and between a tip and a root. The airfoil further includes a frangible airfoil portion at the tip extending between the leading edge and the trailing edge and extending between the tip and a frangible line along a span including a first plurality of composite plies. Each of the first plurality of composite plies includes fibers oriented at least partially along a chordwise direction, a thickness direction, or both. The airfoil further includes a residual airfoil portion extending from the frangible line to the root along the span including a second plurality of composite plies. The second plurality of composite plies includes at least one composite ply with fibers oriented along the span. Further, the residual airfoil portion meets the frangible airfoil portion at the frangible line.
Information query