US 12,006,842 B1
Airfoil with sandwich composite
Russell Kim, Temecula, CA (US); Raymond Surace, Newington, CT (US); James T. Roach, Vernon, CT (US); and Jonas Banhos, West Hartford, CT (US)
Assigned to RTX CORPORATION, Farmington, CT (US)
Filed by RAYTHEON TECHNOLOGIES CORPORATION, Farmington, CT (US)
Filed on Jun. 2, 2023, as Appl. No. 18/328,177.
Int. Cl. F01D 5/28 (2006.01); F01D 5/14 (2006.01)
CPC F01D 5/282 (2013.01) [F01D 5/147 (2013.01); F01D 5/284 (2013.01); F05D 2240/80 (2013.01); F05D 2250/283 (2013.01); F05D 2300/6033 (2013.01); F05D 2300/612 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An airfoil for a gas turbine engine comprising:
an airfoil section; and
a platform having a non-gaspath side and a gaspath side from which the airfoil section extends, the platform being comprised of a sandwich composite including first and second ceramic matrix composite (CMC) skins each including at least one 2-D ceramic fiber ply, the first and second CMC skins being disposed, respectively, on the gaspath side and the non-gaspath side, and a cellular core disposed radially between the first and second CMC skins.