公开(公告)号：US20230366553A1

公开(公告)日：2023-11-16

申请号：US18302943

申请日：2023-04-19

Applicant: ROLLS-ROYCE plc

Inventor： Haidong LI ,  Krishnat Sadashiv PATIL ,  Stewart J. DAWSON

IPC: F23R3/34

CPC classification number: F23R3/34

Abstract: A method of optimising the performance of combustion equipment of a gas turbine engine includes providing a fuel flow into the combustion equipment via a plurality of fuel injectors circumferentially disposed about a principal rotational axis at a plurality of injector positions; determining a plurality of temperatures of combustion gases at a plurality of circumferential positions downstream of the combustion equipment using a plurality of temperature measurement devices; ranking the plurality of circumferential positions based on the plurality of temperatures of the combustion gases determined using the plurality of temperature measurement devices; and repositioning at least some of the plurality of fuel injectors between the plurality of injector positions based at least on the ranking of the circumferential positions.

公开(公告)号：US20180073370A1

公开(公告)日：2018-03-15

申请号：US15683339

申请日：2017-08-22

Applicant: ROLLS-ROYCE plc

Inventor： Martin MOTTRAM ,  David J. HUNT ,  Haidong LI ,  Shahrokh SHAHPAR ,  Stefano CALONI

IPC: F01D5/18

CPC classification number: F01D5/186 ,  F01D5/141 ,  F01D5/20 ,  F05D2240/304 ,  F05D2240/307 ,  F05D2250/314 ,  F05D2250/52 ,  F05D2260/202

Abstract: A blade includes a root and an elongate portion extending to a tip, the elongate portion having an aerofoil-shaped cross-section. The aerofoil has leading and trailing edges, and suction and pressure sides. The tip includes a squealer defining a gutter at the tip, the squealer extending from the trailing edge along the entirety of a first of the suction and pressure sides, around the leading edge and partly along a second of the suction and pressure sides leaving a gap between the trailing edge and an end of the wall. A main trailing edge cooling channel extends within the elongate portion in a direction from root to tip adjacent the trailing edge and exits into the gutter. The main trailing edge cooling channel includes a bend just downstream of the exit, the exit displaced from a camber line of the blade elongated portion towards the second side.