GEARED GAS TURBINE ENGINE WITH REDUCED FAN NOISE

A fan section for a gas turbine engine according to an example of the present disclosure includes, among other things, a fan rotor having fan blades, and a plurality of fan exit guide vanes positioned downstream of the fan rotor. The fan rotor is configured to be driven through a gear reduction. A r...

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Bibliographische Detailangaben
Hauptverfasser: Morin, Bruce L, Gilson, Jonathan, Lord, Wesley K, Topol, David A, Reba, Ramons A
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A fan section for a gas turbine engine according to an example of the present disclosure includes, among other things, a fan rotor having fan blades, and a plurality of fan exit guide vanes positioned downstream of the fan rotor. The fan rotor is configured to be driven through a gear reduction. A ratio of a number of fan exit guide vanes to a number of fan blades is defined. The fan exit guide vanes are provided with optimized sweep and optimized lean.