Invention Grant
- Patent Title: Shape memory alloy variable stiffness airfoil
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Application No.: US17844611Application Date: 2022-06-20
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Publication No.: US11761337B2Publication Date: 2023-09-19
- Inventor: Troy Shannon Prince , Matthew E. Bintz , Charles P. Gendrich
- Applicant: Raytheon Technologies Corporation
- Applicant Address: US CT Farmington
- Assignee: RTX Corporation
- Current Assignee: RTX Corporation
- Current Assignee Address: US CT Farmington
- Agency: SNELL & WILMER L.L.P.
- The original application number of the division: US16431403 2019.06.04
- Main IPC: F01D5/14
- IPC: F01D5/14 ; B29C70/86 ; B29C70/88 ; B29D99/00 ; F03G7/06 ; B29C35/02 ; B29C65/48 ; B29C65/00 ; F01D5/28 ; B29K305/00 ; B29L31/08

Abstract:
An aerostructure is provided. The aerostructure may comprise an airfoil extending from a leading edge to a trailing edge, the airfoil comprising a stiffness and a camber, and a shape memory alloy (SMA) mechanically coupled to the airfoil via a resin, the SMA configured to be coupled to a current source, wherein at least one of the stiffness or the camber changes in response to a phase change of the SMA.
Public/Granted literature
- US20220316343A1 SHAPE MEMORY ALLOY VARIABLE STIFFNESS AIRFOIL Public/Granted day:2022-10-06
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