Invention Application
US20160090909A1 GEARED GAS TURBINE ENGINE WITH REDUCED FAN NOISE 审中-公开
具有减少风扇噪音的齿轮式涡轮发动机

GEARED GAS TURBINE ENGINE WITH REDUCED FAN NOISE
Abstract:
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.
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