US 12,359,617 B2
Axial transfer bearing
Christopher M. Valva, Manchester, CT (US); and Todd A. Davis, Tolland, CT (US)
Assigned to RTX CORPORATION, Farmington, CT (US)
Filed by RTX CORPORATION, Farmington, CT (US)
Filed on Aug. 4, 2023, as Appl. No. 18/365,475.
Prior Publication US 2025/0043722 A1, Feb. 6, 2025
Int. Cl. F02C 7/06 (2006.01); F01D 25/18 (2006.01); F02C 7/36 (2006.01); F16C 33/78 (2006.01); F16H 57/04 (2010.01)
CPC F02C 7/06 (2013.01) [F01D 25/18 (2013.01); F02C 7/36 (2013.01); F16C 33/783 (2013.01); F01D 25/183 (2013.01); F05D 2240/54 (2013.01); F05D 2240/55 (2013.01); F16C 2360/23 (2013.01); F16H 57/043 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A fan drive gear system for a turbine engine comprising:
a carrier supporting rotation of a plurality of planet gears and rotatable about an engine longitudinal axis, the carrier including an axially facing seal plate that defines a lubricant passage to the carrier;
a transfer bearing assembly having a seal member that defines a lubricant supply path to the seal plate, a seal carrier supporting the seal member, a static housing, and at least one biasing member biasing the seal member against the seal plate, wherein the seal member seals against the seal plate, the static housing supports axial movement of the seal member and the seal carrier, a static seal supported by the static housing seals against a radial surface of the seal member, and the at least one biasing member is disposed about an outer periphery of the seal member between the seal carrier and a portion of the static housing; and
a fan drive shaft coupled to the carrier.