US 12,258,909 B2
Gearbox assembly
David Yamarthi, Bengaluru (IN); Paul Mathew, Bengaluru (IN); Parmeet Chhabra, Bengaluru (IN); Ravindra Shankar Ganiger, Bengaluru (IN); Souvik Porel, Bengaluru (IN); Gautam Naik, Bengaluru (IN); and Norman A. Turnquist, Sloansville, NY (US)
Assigned to GENERAL ELECTRIC COMPANY, Evendale, OH (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Jul. 20, 2022, as Appl. No. 17/813,677.
Claims priority of application No. 202211010222 (IN), filed on Feb. 25, 2022.
Prior Publication US 2023/0272751 A1, Aug. 31, 2023
Int. Cl. F02C 7/36 (2006.01); F01D 25/18 (2006.01); F02C 7/06 (2006.01)
CPC F02C 7/36 (2013.01) [F01D 25/18 (2013.01); F02C 7/06 (2013.01); F05D 2250/291 (2013.01); F05D 2260/232 (2013.01); F05D 2260/40311 (2013.01); F05D 2260/96 (2013.01); F05D 2260/98 (2013.01); F05D 2300/612 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A gearbox assembly for a gas turbine engine, the gearbox assembly comprising:
a hollow gear having:
(a) one or more reservoirs configured to store a lubricant; and
(b) one or more passages configured to supply the lubricant to one or more gear meshes in the gearbox assembly,
wherein the hollow gear is configured to absorb vibrations and loading experienced in the gearbox assembly, to provide impact resistance for the gearbox assembly, and to provide internal cooling of the hollow gear, and
wherein the one or more passages are formed in one or more struts of the hollow gear, the one or more struts being flexure members configured to allow deflection of the hollow gear.