US 12,492,642 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 May 24, 2024, as Appl. No. 18/674,010.
Application 18/674,010 is a continuation of application No. 18/086,112, filed on Dec. 21, 2022, granted, now 12,018,592.
Prior Publication US 2024/0309769 A1, Sep. 19, 2024
Int. Cl. F01D 9/04 (2006.01); F01D 25/28 (2006.01)
CPC F01D 9/041 (2013.01) [F01D 25/28 (2013.01); F05D 2220/323 (2013.01); F05D 2250/37 (2013.01); F05D 2260/961 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A turbofan engine defining a circumferential direction, the turbofan engine comprising:
a turbomachine defining a pylon attachment location along the circumferential direction;
an unducted rotor assembly drivingly coupled to the turbomachine, the unducted rotor assembly including a plurality of unducted rotor blades; and
an NOGV plurality of outlet guide vanes positioned downstream of the plurality of unducted rotor blades, the NOGV plurality of outlet guide vanes including a first outlet guide vane and a second outlet guide vane adjacent the first outlet guide vane, a circumferential gap extending from the first outlet guide vane to the second outlet guide vane wherein the circumferential gap is greater than 360 degrees divided by NOGV, and the pylon attachment location is located outside of the circumferential gap, wherein the turbofan engine defines an acoustically sensitive location along the circumferential direction, wherein the acoustically sensitive location is positioned between the first and second outlet guide vanes, and wherein the acoustically sensitive location is positioned between a three o'clock position and a nine o'clock position.