公开(公告)号：US09739161B2

公开(公告)日：2017-08-22

申请号：US14158081

申请日：2014-01-17

Applicant: ROLLS-ROYCE PLC

Inventor： Jonathan Mark Gregory ,  Oliver James Francis

IPC: F01D9/02 ,  F23R3/28 ,  F01D9/04 ,  F23D11/10 ,  F23R3/14 ,  F23C7/00 ,  B22F3/10 ,  B22F5/10 ,  F23R3/12 ,  B22F3/105

CPC classification number: F01D9/02 ,  B22F3/1055 ,  B22F5/106 ,  B22F2003/1059 ,  F01D9/041 ,  F01D9/042 ,  F23C7/004 ,  F23C2900/07001 ,  F23D11/107 ,  F23D2206/10 ,  F23D2900/11101 ,  F23D2900/14021 ,  F23R3/12 ,  F23R3/14 ,  F23R3/286 ,  F23R2900/00018 ,  Y02P10/295 ,  Y02T50/675 ,  Y10T29/4932

Abstract: A fuel injector comprises a swirler and the swirler comprises a plurality of vanes, a first member and a second member. The second member is arranged coaxially around the first member and the vanes extend radially between the first and second members. The vanes have leading edges and the second member has an upstream end. The leading edges of the vanes extend with radial and axial components from the first member to the upstream end of the second member and the radially outer ends of the leading edges of the vanes form arches with the upstream end of the second member. The arrangement of the swirler enables the fuel injector to be built by direct laser deposition.