公开(公告)号：US20240085021A1

公开(公告)日：2024-03-14

申请号：US18453587

申请日：2023-08-22

Applicant: Rolls-Royce plc

Inventor： Robin WILSON ,  Guy STEVENSON ,  Yue Hao CHOONG ,  Thaddie NATALARAY

IPC: F23R3/28 ,  B33Y10/00 ,  B33Y80/00

CPC classification number: F23R3/28 ,  B33Y10/00 ,  B33Y80/00 ,  F23R2900/00018

Abstract: A method for manufacturing a fuel spray nozzle for a gas turbine engine includes forming a first section of the fuel spray nozzle by additive layer manufacturing. The first section includes a main chamber and internal passageways. The method includes forming a second section of the fuel spray nozzle by additive layer manufacturing on the first section. The second section includes a metering feature disposed in fluid communication with one of the internal passageways of the first section. The method includes modifying the metering feature of the second section by a first subtractive manufacturing process to obtain a desired diameter of the metering feature and/or a desired surface roughness of the metering feature. The method includes forming a third section of the fuel spray nozzle by additive layer manufacturing on the second section. The third section includes a deflector and a spin chamber.