Cooled flameholder swirl cup

A combustor swirl cup includes coaxial inner and outer swirlers separated by a tubular centerbody. The centerbody includes a bypass inlet surrounding the inner swirler and diverges aft along a perforate inner nozzle to terminate at an annular flameholder. An impingement ring is spaced forward from t...

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Bibliographische Detailangaben
Hauptverfasser: LI SHUII, HELD TIMOTHY JAMES, MUELLER MARK ANTHONY, VERMEERSCH MICHAEL LOUIS
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A combustor swirl cup includes coaxial inner and outer swirlers separated by a tubular centerbody. The centerbody includes a bypass inlet surrounding the inner swirler and diverges aft along a perforate inner nozzle to terminate at an annular flameholder. An impingement ring is spaced forward from the flameholder in flow communication with the bypass inlet for receiving cooling air therefrom to impingement cool the flameholder.