公开(公告)号：US10697471B2

公开(公告)日：2020-06-30

申请号：US15907531

申请日：2018-02-28

Applicant: ROLLS-ROYCE plc

Inventor： Richard Northall ,  Anthony J. Rae ,  Michael S. Krautheim ,  Alastair D. Walker ,  Jonathan F. Carrotte ,  Ian Mariah

IPC: F04D29/54 ,  F01D25/16 ,  F01D9/04 ,  F02C3/06 ,  F01D5/14

Abstract: An annular array of turning vanes 200 is provided in a duct 100 of a gas turbine engine 10. The annular array of turning vanes 200 comprises aerodynamic vanes 220 and strut-vanes 240. The strut-vanes 240 have greater chord length and extend further axially downstream than the aerodynamic vanes 220. The leading edge of the strut-vanes 240 is upstream of the trailing edge of the aerodynamic vanes 220. The strut-vanes provide flow turning. The arrangement allows the duct 100 to be axially short.

公开(公告)号：US11828232B2

公开(公告)日：2023-11-28

申请号：US17476174

申请日：2021-09-15

Applicant: ROLLS-ROYCE plc

Inventor： Jonathan F. Carrotte ,  Anthony John Moran ,  Mark Brend ,  Mark Cassell ,  Maxwell Williams

IPC: F02C7/22 ,  F23R3/28 ,  F02C3/22 ,  F02C7/04 ,  F23R3/04 ,  F02C3/20 ,  F02C9/40 ,  F02C7/224 ,  F02C7/143 ,  F02C7/18 ,  F02C7/14

CPC classification number: F02C7/224 ,  F02C3/20 ,  F02C3/22 ,  F02C7/04 ,  F02C7/14 ,  F02C7/143 ,  F02C7/18 ,  F02C7/22 ,  F02C7/222 ,  F23R3/04 ,  F23R3/286 ,  F02C9/40 ,  F05D2220/32 ,  F05D2240/35

Abstract: A direct injection fuel system is shown for injecting hydrogen fuel into a gas turbine combustor. The fuel injection system includes a plurality of fuel injector blocks. Each fuel injector block includes a fuel admission duct having an inlet for receiving hydrogen fuel from a fuel supply, an outlet for delivering hydrogen fuel into the combustor and a central axis extending from said inlet to said outlet. Each fuel injector block also includes an air admission duct located around the periphery of the fuel admission duct, having an inlet for receiving air from a diffuser and an outlet for delivering air into the combustor for mixing with the hydrogen fuel.

公开(公告)号：US10577956B2

公开(公告)日：2020-03-03

申请号：US15907538

申请日：2018-02-28

Applicant: ROLLS-ROYCE plc

Inventor： Richard Northall ,  Anthony J. Rae ,  Michael S. Krautheim ,  Alastair D. Walker ,  Jonathan F. Carrotte ,  Ian Mariah

IPC: F01D5/14 ,  F01D9/04 ,  F01D9/06 ,  F01D9/02 ,  F02K3/04

Abstract: An annular array of turning vanes 200 is provided in a duct 100 of a gas turbine engine 10. The annular array of turning vanes 200 comprises aerodynamic vanes 220 and strut-vanes 240. The strut-vanes 240 have greater chord length and extend further axially downstream than the aerodynamic vanes 220. The leading edge of the strut-vanes 240 is upstream of the trailing edge of the aerodynamic vanes 220. The strut-vanes provide flow turning. The space to chord ratio of the aerodynamic vanes that are closest to the suction surface of a strut-vane is higher than the space to chord ratio of aerodynamic vanes that are closest to a pressure surface of the strut-vane. The arrangement allows the duct 100 to be axially short.