US 12,292,005 B2
Aircraft propulsion system geartrain
Paul R. Hanrahan, Sedona, AZ (US); Benjamin T. Mylrea, Jupiter, FL (US); and David A. Stachowiak, Manchester, CT (US)
Assigned to RTX CORPORATION, Farmington, CT (US)
Filed by Raytheon Technologies Corporation, Farmington, CT (US)
Filed on Nov. 4, 2022, as Appl. No. 17/980,670.
Claims priority of provisional application 63/397,641, filed on Aug. 12, 2022.
Prior Publication US 2024/0052786 A1, Feb. 15, 2024
Int. Cl. F02C 7/36 (2006.01); B64D 35/00 (2006.01); B64D 35/04 (2006.01)
CPC F02C 7/36 (2013.01) [B64D 35/00 (2013.01); B64D 35/04 (2013.01); F05D 2260/4031 (2013.01); F05D 2260/902 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An assembly for an aircraft, comprising:
a geartrain including a first gear system and a second gear system;
the first gear system including a first sun gear, a first ring gear, a plurality of first intermediate gears and a first carrier, the first sun gear and the first ring gear each rotatable about an axis, the plurality of first intermediate gears between and meshed with the first sun gear and the first ring gear, and each of the plurality of first intermediate gears rotatably mounted to the first carrier;
the second gear system interconnected with the first gear system, the second gear system including a second sun gear, a second ring gear, a plurality of second intermediate gears and a second carrier, the second sun gear rotatable about the axis and coupled to the first ring gear, the plurality of second intermediate gears between and meshed with the second sun gear and the second ring gear, and each of the plurality of second intermediate gears rotatably mounted to the second carrier;
a first propulsor rotor coupled to the first ring gear; and
a rotating structure coupled to the first sun gear and comprising a turbine rotor, the rotating structure configured to drive rotation of the first propulsor rotor through the geartrain.