US 12,078,083 B2
Contour weaves for interwoven vanes
Christian X. Campbell, West Hartford, CT (US)
Assigned to RTX Corporation, Farmington, CT (US)
Filed by Raytheon Technologies Corporation, Farmington, CT (US)
Filed on Dec. 20, 2022, as Appl. No. 18/084,935.
Prior Publication US 2024/0200461 A1, Jun. 20, 2024
Int. Cl. F01D 9/04 (2006.01); B32B 5/02 (2006.01); B32B 5/26 (2006.01); B32B 38/08 (2006.01)
CPC F01D 9/041 (2013.01) [B32B 5/02 (2013.01); B32B 5/26 (2013.01); B32B 38/08 (2013.01); B32B 2260/021 (2013.01); B32B 2260/046 (2013.01); B32B 2262/105 (2013.01); B32B 2305/076 (2013.01); B32B 2315/02 (2013.01); B32B 2603/00 (2013.01); F05D 2220/32 (2013.01); F05D 2230/23 (2013.01); F05D 2240/12 (2013.01); F05D 2300/6033 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method of forming a ceramic matrix composite (CMC) vane, the method comprising:
drawing a continuous fiber sheet over at least one contoured surface to form a single-folded sheet, the single-folded sheet comprising:
an airfoil portion;
a first platform at a first end of the airfoil portion; and
an integral transition region between the airfoil portion and the first platform;
attaching a second platform to a second, opposing end of the airfoil portion to form a vane preform; and
densifying the vane preform,
wherein the step of attaching the second platform to the second end of the airfoil portion comprises:
abutting the second platform to a shear tube layer of the airfoil portion; and
overwrapping the shear tube layer and the second platform with at least one additional fiber sheet to form a shear tube transition region.