公开(公告)号：US20230044167A1

公开(公告)日：2023-02-09

申请号：US17814019

申请日：2022-07-21

Applicant: ROLLS-ROYCE plc

Inventor： Fiona HALLIDAY ,  Mark SPRUCE

IPC: F16H57/08 ,  F16C17/02

Abstract: A journal bearing comprising a first component and a second component, the first and second components being arranged to rotate relative to one another in normal use. The first component comprises a first body, a first layer forming a functional surface facing the second component, and a first subsurface layer between the body and the layer. The first subsurface layer is formed of a material having a first coefficient of thermal expansion in the radial direction, and the first body is formed of a material having a second coefficient of thermal expansion in the radial direction. The first coefficient of thermal expansion is lower than the second coefficient of thermal expansion.

公开(公告)号：US20230054031A1

公开(公告)日：2023-02-23

申请号：US17881225

申请日：2022-08-04

Applicant: ROLLS-ROYCE plc

Inventor： Fiona HALLIDAY ,  Mark SPRUCE

IPC: F02C7/36 ,  F16C3/02 ,  B29C70/28

Abstract: A shaft component, which in particular can be connected or is connected to the input or output side of a gear box in a gas turbine engine, in particular an aircraft engine, wherein the shaft component has at least two regions comprising fiber reinforced plastic, with fibers in the at least two regions differing in their composition, their geometric properties, their density, their radial position, their axial position and/or in their fiber orientation in the shaft component.