Kraftstoffsprühdüse

Details

Veröffentlichungs-Nr.

EP3667169

Aktenzeichen

EP19208446

Anmeldetag

12. November 2019

Veröffentlichung

27. April 2022

Erteilung

27. April 2022

Rechtsraum

EP

IPC

F23R3/28F23R3/14F23R3/34

Abstract

There is disclosed a fuel spray nozzle 37 for a combustor in a gas turbine engine 10, the fuel spray nozzle 37 comprising a primary atomiser 38 configured to discharge a primary flow of swirled atomised fuel along and around a fuel spray nozzle axis 50. The primary atomiser 38 comprises a primary outer air swirler 48 disposed radially outwardly of a primary fuel pre-filmer channel 46. A secondary atomiser 40 is disposed around the primary atomiser 38 and comprises a secondary inner air swirler 60, 90 configured to swirl flow along a secondary inner air channel 68. The secondary inner air swirler 60, 90 is disposed radially inwardly of a secondary fuel pre-filmer channel 63 of the secondary atomiser 40. A primary outer air channel 58 is defined between the primary outer air swirler 48 and the secondary inner air swirler 60, 90. The secondary inner air swirler 60, 90 comprises a splitter wall 66 configured to separate swirling flow in the secondary inner air channel 68 from the primary flow of atomised fuel. The secondary inner air swirler 60, 90 comprises a primary cap wall 72 integral with and extending radially inwardly from the splitter wall 66 to direct flow from the primary outer air channel 58 inwardly towards the fuel spray nozzle axis 50.

Anmelder

Firmen

Rolls-Royce plc
Rolls-Royce Deutschland Ltd & Co KG

Land

🇬🇧 Großbritannien

Fachgebiete