公开(公告)号：US11174796B2

公开(公告)日：2021-11-16

申请号：US16835674

申请日：2020-03-31

Applicant: ROLLS-ROYCE plc

Inventor： Clare L Bewick ,  David A Edwards

IPC: F02C7/32 ,  F02C7/22

Abstract: The disclosure relates to a gas turbine engine having an accessory gearbox assembly having an accessory gearbox. The accessory gearbox assembly is mounted adjacent a core of the gas turbine engine and has a support formation for supporting a conduit. The conduit extends between a first location on the engine and a second location on the engine. The first location and the second location may be spaced from the accessory gearbox such that the conduit does not operatively communicate with the accessory gearbox in use. The accessory gearbox may be axially mounted and may provide a bridge for supporting a plurality of conduits.

公开(公告)号：US10539021B2

公开(公告)日：2020-01-21

申请号：US15399457

申请日：2017-01-05

Applicant: ROLLS-ROYCE PLC

Inventor： David A Edwards ,  Stewart T Thornton

IPC: F01D3/04 ,  F04D29/041 ,  F16C17/04 ,  F01D25/16 ,  F16C17/08

Abstract: A thrust balancing mechanism for balancing axial loads on a rotor thrust bearing 3 is described. The mechanism comprises a piston arrangement 6 axially mounted on a stationary structure 2, about a center axis arranged, in use, in coaxial alignment with a rotating shaft 1 carrying the rotor thrust bearing 3. A hydrodynamic thrust bearing 8 is mounted, in use, between the piston 6 and the rotor thrust bearing 3. The piston 6 is pressurized so as to impart to the rotor thrust bearing 3, via the hydrodynamic thrust bearing 8, an axial load which counters an axial load imparted to the rotor thrust bearing 3 by the rotating shaft 1.