公开(公告)号：US20230235682A1

公开(公告)日：2023-07-27

申请号：US18157392

申请日：2023-01-20

Applicant: ROLLS-ROYCE plc

Inventor： Mark BECKHAM ,  Richard HALL

IPC: F01D25/00 ,  F01D25/24

CPC classification number: F01D25/005 ,  F01D25/24 ,  F05D2220/323 ,  F05D2240/14 ,  F05D2300/6031

Abstract: A fan casing for an engine having a fan with fan blades that each have a centre of gravity (CoG) that lies on a fan blade CoG plane, the fan casing having a central axis and comprising a main impact region comprising carbon-fibre reinforced polymer (CFRP) blocks and glass-fibre reinforced polymer (GFRP) blocks having a constant thickness throughout the axial extent of the main impact region, wherein the total depth of the main impact region is equal to the sum of the thicknesses of the CFRP blocks and GFRP blocks, each of the GFRP blocks is positioned between two CFRP blocks, and the thickness of at least one of the GFRP blocks is different to the thickness of another of the GFRP blocks.

公开(公告)号：US20240035210A1

公开(公告)日：2024-02-01

申请号：US18220922

申请日：2023-07-12

Applicant: ROLLS-ROYCE plc

Inventor： Christopher D. JONES ,  Adam J. BISHOP ,  Richard HALL ,  Ian BUCK ,  Sarvesh DHIMAN

IPC: D03D11/00 ,  B29C70/24

CPC classification number: D03D11/00 ,  B29C70/24 ,  D10B2505/02

Abstract: A method for manufacturing a composite component, including: weaving a multi-layer woven preform from warp and weft tows of fibre-reinforcement material, the woven preform includes: multi-layer weave including: plurality of weft tow layers; plurality of laterally-adjacent stacks extending along the longitudinal direction, primary portion having longitudinal extent along woven preform, the primary portion having one or more edge regions each defining respective lateral side of primary portion; wherein for the or each edge region: the multi-layer weave defines at least the edge region; plurality of stacks in the edge region are binding stacks in which one or more warp tows are interlaced to bind a respective plurality of weft tow layers; weave property differs between binding stacks in the edge region to reduce a thickness of the edge region towards respective lateral side. Also disclosed herein is a woven structure, formed by warp and weft tows of fibre reinforcement material.