Lean direct injection atomizer for gas turbine engines

A lean direct injection fuel nozzle for a gas turbine is disclosed which includes a radially outer main fuel delivery system including a main inner air swirler defined in part by a main inner air passage having a radially inner wall with a diverging downstream surface, an intermediate air swirler ra...

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Bibliographic Details
Main Authors Buelow, Philip E. O, Williams, Brandon P, Bretz, David H, Spooner, Michael, Mohamed, Caroline, Gill, Helen
Format Patent
LanguageEnglish
Published 24.08.2010
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Summary:A lean direct injection fuel nozzle for a gas turbine is disclosed which includes a radially outer main fuel delivery system including a main inner air swirler defined in part by a main inner air passage having a radially inner wall with a diverging downstream surface, an intermediate air swirler radially inward of the main inner air swirler for providing a cooling air flow along the downstream surface of the radially inner wall of the main inner air passage, and a radially inner pilot fuel delivery system radially inward of the intermediate air swirler.