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.

公开(公告)号：US20180056437A1

公开(公告)日：2018-03-01

申请号：US15685081

申请日：2017-08-24

Applicant: ROLLS-ROYCE plc

Inventor： Simon E. BRAY ,  Andrew R. WALPOLE ,  Robin WILSON

IPC: B23K20/12

CPC classification number: B23K20/1205 ,  B23K20/12 ,  B23K20/129 ,  B23K33/00 ,  B23K2101/001 ,  B23K2103/26

Abstract: A workpiece for use with a friction welding process comprises a weld surface. The weld surface comprises a central ridge surface extending along the weld surface, with the central ridge surface being flanked on either side respectively by a first pyramidal surface and a second pyramidal surface. The first pyramidal surface subtends a first pyramidal angle with the central ridge surface, and the second pyramidal surface subtends a second pyramidal angle with the central ridge surface. The first pyramidal surface is further flanked by a third pyramidal surface, and the second pyramidal surface is further flanked by a fourth pyramidal surface, with the third pyramidal surface subtending a third pyramidal angle with the central ridge surface, and the fourth pyramidal surface subtending a fourth pyramidal angle with the central ridge surface. Each of the third pyramidal angle and the fourth pyramidal angle is less than 90°.