公开(公告)号：US20170219009A1

公开(公告)日：2017-08-03

申请号：US15408180

申请日：2017-01-17

Applicant: ROLLS-ROYCE plc

Inventor： Paul FLETCHER ,  Paul WILSON

IPC: F16C32/04

CPC classification number: F16C32/0474 ,  F16C19/52 ,  F16C25/08 ,  F16C25/086 ,  F16C41/008 ,  F16C2233/00 ,  F16C2360/23

Abstract: A bearing arrangement comprising: a first bearing including a first inner race coupled to a rotatable component, a first outer race; and a plurality of first roller elements between the first inner race and the first outer race; a second bearing including a second inner race coupled to the rotatable component, a second outer race, and a plurality of second roller elements between the second inner race and the second outer race; a component, the first outer race being axially moveable relative to the component; and a member between the first bearing and the second bearing and arranged to provide an indirect first force on the first outer race to prevent the first roller elements from skidding when the first bearing and the second bearing receive a second force in a first direction, the second bearing being configured to transfer the second force to the component.

公开(公告)号：US20210079845A1

公开(公告)日：2021-03-18

申请号：US17016510

申请日：2020-09-10

Applicant: ROLLS-ROYCE plc

Inventor： Paul WILSON

IPC: F02C7/06 ,  F02C7/36

Abstract: There is disclosed an arrangement for separating an air-oil mixture in an oil distribution system of an engine. The arrangement comprises a distribution channel of the system, which defines a fluid flowpath suitable for receiving the air-oil mixture, and an ultrasonic transducer configured to insonate the fluid flowpath.

公开(公告)号：US20200300119A1

公开(公告)日：2020-09-24

申请号：US16815309

申请日：2020-03-11

Applicant: ROLLS-ROYCE plc

Inventor： David MASON ,  Paul WILSON ,  Ivan POPOVIC

IPC: F01D25/16

Abstract: A gas turbine engine (10) having a bearing support structure (100) comprising: a bearing chamber (104); a first buffer fluid passage (110) disposed radially outwardly of the bearing chamber (104); a second buffer fluid passage (116) disposed radially outwardly of the first buffer fluid passage (110); and a core fluid passage (132) disposed radially outwardly of the second buffer fluid passage (116); the bearing chamber (104), first buffer fluid passage (110), second buffer fluid passage (116) and core fluid passage (132) being separated by respective hub walls.