US 12,276,199 B2
Outlet guide vane assembly for a turbofan engine
Kishore Ramakrishnan, Rexford, NY (US); Ravish Karve, Bengaluru (IN); Sara Elizabeth Carle, Hilliard, OH (US); and Trevor Howard Wood, Clifton Park, NY (US)
Assigned to General Electric Company, Evendale, OH (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Dec. 21, 2022, as Appl. No. 18/086,039.
Prior Publication US 2024/0209748 A1, Jun. 27, 2024
Int. Cl. F01D 17/16 (2006.01); B64D 27/12 (2006.01)
CPC F01D 17/162 (2013.01) [B64D 27/12 (2013.01); F05D 2220/325 (2013.01); F05D 2220/36 (2013.01); F05D 2240/12 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A turbofan engine defining a circumferential direction, the turbofan engine comprising:
a turbomachine;
an unducted rotor assembly drivingly coupled to the turbomachine, the unducted rotor assembly including a plurality of unducted rotor blades; and
a plurality of outlet guide vanes positioned downstream of the plurality of unducted rotor blades, the plurality of outlet guide vanes each defining a span, wherein the spans of the plurality of outlet guide vanes are nonuniform,
wherein the plurality of outlet guide vanes includes a first outlet guide vane with a first span not greater than the spans of the other outlet guide vanes, a second outlet guide vane with a second span not shorter than the spans of the other outlet guide vanes, and a plurality of intermediate outlet guide vanes positioned between the first and second outlet guide vanes, wherein the spans of the intermediate outlet guide vanes are each greater than the first span and less than the second span.