公开(公告)号：US10859271B2

公开(公告)日：2020-12-08

申请号：US16118966

申请日：2018-08-31

Applicant: ROLLS-ROYCE PLC

Inventor： John E Rimmer ,  Damian Martin ,  David P Wilson

IPC: F23R3/28 ,  F23R3/50 ,  F23R3/10 ,  F23R3/00

Abstract: A combustion chamber comprises an upstream end wall structure and inner and outer annular wall structures. The upstream end wall structure comprises an upstream wall and a plurality of circumferentially arranged heat shields secured to the upstream wall. The upstream wall has a plurality of circumferentially spaced fuel injector apertures. Each heat shield has radially outer and radially inner ends and a fuel injector aperture aligned with a corresponding fuel injector aperture in the upstream wall. The radially outer and inner ends of each heat shield have outer and inner rails spacing the heat shield from the upstream wall. The radially outer and inner ends of each heat shield have first and second pluralities of circumferentially spaced apertures extending there-through and through the associated outer and inner rails to direct coolant over the surface of the outer and inner annular wall structures to form respective films of coolant.

公开(公告)号：US10533746B2

公开(公告)日：2020-01-14

申请号：US15359472

申请日：2016-11-22

Applicant: ROLLS-ROYCE plc

Inventor： John E Rimmer ,  Michael A Macquisten ,  Stephen J Mills ,  Jochen Rupp ,  Lynn I Steward ,  Murthy V Ravikanti

IPC: F02C1/00 ,  F23R3/00 ,  F02C7/12

Abstract: A gas turbine engine combustion chamber arrangement includes an annular outer wall and annular inner wall including an upstream and a downstream row of tiles. The downstream end of each tile in the upstream row of tiles has a rail extending towards and sealing with the outer wall and a lip extending in a downstream direction towards the tiles in the downstream row of tiles. The outer wall has a row of apertures to direct coolant onto the lips of the tiles in the upstream row of tiles. The downstream end of each tile in the upstream row of tiles has a plurality of fences extending in a downstream direction from the rail and each fence extends from the outer surface of the lip towards the outer wall. The row of apertures in the annular outer wall is arranged to direct coolant onto the lip between two circumferentially adjacent fences.