公开(公告)号：US20210102606A1

公开(公告)日：2021-04-08

申请号：US16592492

申请日：2019-10-03

Applicant: Rolls-Royce Corporation

Inventor： Brian Bennett ,  Mark Winely

IPC: F16H1/28 ,  F02C7/36 ,  F16H57/08

Abstract: A planet gear housing assembly is disclosed in an epicyclical gear system of a gas turbine engine. The planet gear housing assembly comprises an aft planet carrier assembly, a forward planet carrier assembly, and a plurality of planet gears. The planet gear housing assembly includes one or more of the following features: a stiffening member positioned between the forward and aft planet carrier assemblies, a static curvic joint coupling the forward and aft planet carrier assemblies, a plurality of roller element bearings to carry the plurality of planet gears, and one or more bearing springs disposed between a bearing and a carrier housing to accommodate relative movement.

公开(公告)号：US20200325821A1

公开(公告)日：2020-10-15

申请号：US16379159

申请日：2019-04-09

Applicant: Rolls-Royce North American Technologies Inc. ,  Rolls-Royce Corporation

Inventor： Melissa Hughes ,  Brian Bennett ,  Stanford Clemens ,  Randal Renback

IPC: F02C3/113 ,  F01D17/08 ,  F02C3/10 ,  F01D19/00 ,  F01D17/12

Abstract: A starter generator located within a sump region of a turbofan engine and coupled to an adapter shaft. The adapter shaft rotationally coupled to the high pressure shaft, forward of a high pressure shaft bearing, and secured by a spanner nut. The engine makes use of two pluralities of electrical conductors, the first extends through an electrical conduit defined by a forward strut extending from the sump region to the outward casing, the second extends axially away from the electric starter. Each of the first plurality of electrical conductors makes reversible contact with a respective one of the second plurality of electrical conductors via an elbow/pin connector, producing a tight turn in area of limited space.

公开(公告)号：US11353089B2

公开(公告)日：2022-06-07

申请号：US16592492

申请日：2019-10-03

Applicant: Rolls-Royce Corporation

Inventor： Brian Bennett ,  Mark Winely

IPC: F16H1/28 ,  F02C7/36 ,  F16H57/08

Abstract: A planet gear housing assembly is disclosed in an epicyclical gear system of a gas turbine engine. The planet gear housing assembly comprises an aft planet carrier assembly, a forward planet carrier assembly, and a plurality of planet gears. The planet gear housing assembly includes one or more of the following features: a stiffening member positioned between the forward and aft planet carrier assemblies, a static curvic joint coupling the forward and aft planet carrier assemblies, a plurality of roller element bearings to carry the plurality of planet gears, and one or more bearing springs disposed between a bearing and a carrier housing to accommodate relative movement.