公开(公告)号：US20230250757A1

公开(公告)日：2023-08-10

申请号：US18149895

申请日：2023-01-04

Applicant: ROLLS-ROYCE PLC

Inventor： Ashley POWELL ,  Andrew WILKINSON ,  Eduardo ROMERO

IPC: F02C7/10 ,  F02C7/22

CPC classification number: F02C7/10 ,  F02C7/22 ,  F05D2220/32 ,  F05D2240/35 ,  F05D2260/213

Abstract: A reheat assembly for a gas turbine engine includes: a jetpipe casing including: a reheat core section configured to convey a core flow of air from a reheat core inlet to a reheat core outlet; and a reheat bypass section configured to convey a bypass flow of air from a reheat bypass inlet to a reheat bypass outlet radially outward of the reheat core section, wherein the reheat core and reheat bypass sections are radially separated at the reheat core and reheat bypass inlets by a support duct within the jetpipe casing; a reheat arrangement including a radially extending flameholder and a plurality of fuel injection ports including a plurality of core fuel injection ports, wherein: the flameholder is configured to promote a formation of a core flow wake-stabilised region within the core flow of air downstream of the flameholder; and each of the plurality of core fuel injection ports are: circumferentially aligned with the flameholder upstream of the core flow wake-stabilised region, configured to discharge a respective flow of fuel into the reheat core section for mixing with the core flow of air, and offset with respect to one another along a radial direction of the jetpipe casing.

公开(公告)号：US20230250776A1

公开(公告)日：2023-08-10

申请号：US18093091

申请日：2023-01-04

Applicant: ROLLS-ROYCE PLC

Inventor： Ashley POWELL ,  Andrew WILKINSON ,  Eduardo ROMERO

IPC: F02K3/10 ,  F23R3/20

CPC classification number: F02K3/10 ,  F23R3/20 ,  F05D2220/323 ,  F05D2240/35

Abstract: A reheat assembly for a gas turbine engine includes; a jetpipe casing defining a reheat core section configured to duct a core flow of air and a reheat bypass section configured to duct a bypass flow of air. The reheat bypass section is disposed radially outward of the reheat core section, and the reheat core section and the reheat bypass section are at least partially separated by a support duct. An integrated flameholder is mounted to the jetpipe casing, and a fuel pipe is configured to convey fuel to the integrated flameholder. The integrated flameholder includes a flameholder body extending radially inward from the jetpipe casing through the reheat bypass section and into the reheat core section to promote a wake-stabilised region downstream of the body; and an integrated atomiser configured to atomise fuel provided to the integrated flameholder and to discharge the atomised fuel into the wake stabilised region.