US 12,460,549 B1
Pitch-controlled blade retention collar
Nicholas J. Kray, Evendale, OH (US); Arthur W. Sibbach, Boxford, MA (US); and Shawn P. Riley, Evendale, OH (US)
Assigned to General Electric Company, Evendale, OH (US)
Filed by General Electric Company, Evendale, OH (US)
Filed on May 30, 2025, as Appl. No. 19/224,336.
Int. Cl. F01D 5/30 (2006.01)
CPC F01D 5/3007 (2013.01) [F05D 2220/323 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A gas turbine engine comprising:
a plurality of fan blades; and
a collar coupled to the plurality of fan blades, the collar including:
a first mating piece; and
a second mating piece coupled to the first mating piece, the first and second mating pieces defining an opening configured to receive a first root of a first fan blade of the plurality of fan blades, and wherein the first and second mating pieces define a slot configured to retain a second root of a second fan blade of the plurality of fan blades.