US 11,927,113 B2
Composite fan blade airfoil, methods of manufacture thereof and articles comprising the same
Xuetao Li, South Glastonbury, CT (US); Peter Finnigan, Higganum, CT (US); and Nicholas D. Stilin, Higganum, CT (US)
Assigned to RTX CORPORATION, Farmington, CT (US)
Filed by RTX Corporation, Farmington, CT (US)
Filed on Aug. 5, 2022, as Appl. No. 17/881,954.
Claims priority of provisional application 63/230,506, filed on Aug. 6, 2021.
Prior Publication US 2023/0051131 A1, Feb. 16, 2023
Int. Cl. F01D 5/28 (2006.01)
CPC F01D 5/282 (2013.01) [F05D 2220/36 (2013.01); F05D 2300/6034 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A fan blade comprising:
interleaved plies, where interleaving comprises distributing wide plies within narrow plies and short plies within long plies in the fan blade; wherein the interleaving is defined as an actual intersection of a plurality of plies of different variable dimensions that extend in the chordwise direction with another plurality of plies of different variable dimensions that extend in the spanwise direction such that their respective longitudinal axes intersect with one another at angles of 5 to 175 degrees.