US 12,422,038 B2
Geared architecture gas turbine engine with planetary gear oil scavenge
Janice Jabido, Farmington, CT (US); and Michael E. McCune, Colchester, CT (US)
Assigned to RTX CORPORATION, Farmington, CT (US)
Filed by RTX CORPORATION, Farmington, CT (US)
Filed on Mar. 5, 2024, as Appl. No. 18/595,714.
Application 18/595,714 is a division of application No. 17/895,301, filed on Aug. 25, 2022, granted, now 11,946,540.
Application 17/895,301 is a division of application No. 16/785,915, filed on Feb. 10, 2020, granted, now 11,448,309, issued on Sep. 20, 2022.
Claims priority of provisional application 62/962,470, filed on Jan. 17, 2020.
Prior Publication US 2025/0116327 A1, Apr. 10, 2025
This patent is subject to a terminal disclaimer.
Int. Cl. F16H 57/04 (2010.01); F01D 15/12 (2006.01); F01D 25/18 (2006.01); F02K 3/02 (2006.01); F16H 1/28 (2006.01); F16H 57/08 (2006.01)
CPC F16H 57/0427 (2013.01) [F01D 15/12 (2013.01); F01D 25/18 (2013.01); F02K 3/025 (2013.01); F16H 1/28 (2013.01); F16H 57/0442 (2013.01); F16H 57/0479 (2013.01); F16H 57/0486 (2013.01); F16H 57/082 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A fan drive gear system for a gas turbine engine comprising:
a sun gear rotatable about an axis;
a plurality of intermediate gears driven by the sun gear;
a carrier supporting the intermediate gears;
a ring gear circumscribing the intermediate gears, wherein the ring gear is fixed and the carrier rotates about the axis;
a forward gutter forward of the carrier;
an aft gutter aft of the carrier; and
a baffle attached to the carrier and disposed between at least two of the plurality of intermediate gears for defining a lubricant flow path from an interface between the sun gear and at least one of the plurality of intermediate gears, the baffle including a channel with a flow splitter, and at least one ramp portion for directing lubricant toward one of the forward gutter and the aft gutter, wherein the baffle includes an inlet into the channel and the flow splitter comprises an apex disposed at the inlet and the at least one ramp extends from the apex to one of a forward point and an aft point.