MULTITUBE PILOT INJECTOR HAVING A SPLIT AIRFLOW FOR A GAS TURBINE ENGINE

MULTITUBE PILOT INJECTOR HAVING A SPLIT AIRFLOW FOR A GAS TURBINE ENGINE

An injector for a combustor of a gas turbine engine is provided with a plurality of air/fuel mixing tubes divided into radially outer and radially inner subsets of air/fuel mixing tubes with a first fuel manifold in fluid communication with the radially outer subset of air/fuel mixing tubes and a se...

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Bibliographische Detailangaben
Hauptverfasser: HERNANDEZ, Fred, VOGEL, Gregory, CHONG, Gene, SAM, Bernard Tam Yen, KESHAVA-BHATTU, Ramesh, PARADES, David, KALB, Bryan, BRACKETT, James, MCNALLY, Joshua R, YAQUINTO, Matthew, RIZKALLA, Hany
Format: Patent
Sprache:eng ; fre
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Zusammenfassung:An injector for a combustor of a gas turbine engine is provided with a plurality of air/fuel mixing tubes divided into radially outer and radially inner subsets of air/fuel mixing tubes with a first fuel manifold in fluid communication with the radially outer subset of air/fuel mixing tubes and a second fuel manifold in fluid communication with the radially inner subset of air/fuel mixing tubes. Each of the air/fuel mixing tubes of the radially outer subset of air/fuel mixing tubes includes a substantially quadrilateral cross-sectional profile, and each of the air/fuel mixing tubes of the radially inner subset of air/fuel mixing tubes includes a substantially circular cross- sectional profile. Un injecteur pour une chambre de combustion d'un moteur à turbine à gaz est pourvu d'une pluralité de tubes de mélange air/carburant divisés en sous-ensembles radialement externes et radialement internes de tubes de mélange air/carburant avec un premier collecteur de carburant en communication fluidique avec le sous-ensemble radialement externe de tubes de mélange air/carburant et un second collecteur de carburant en communication fluidique avec le sous-ensemble radialement interne de tubes de mélange air/carburant. Chacun des tubes de mélange air/carburant du sous-ensemble radialement externe de tubes de mélange air/carburant comprend un profil de section transversale sensiblement quadrilatéral, et chacun des tubes de mélange air/carburant du sous-ensemble radialement interne de tubes de mélange air/carburant comprend un profil de section transversale sensiblement circulaire.