Invention Grant
US08365515B2 Gas turbine engine with fan variable area nozzle, nacelle assembly and method of varying area of a fan nozzle 有权
具有风扇可变面积喷嘴,机舱组件和风扇喷嘴面积变化的方法的燃气轮机

Gas turbine engine with fan variable area nozzle, nacelle assembly and method of varying area of a fan nozzle
Abstract:
A turbofan engine includes a fan variable area nozzle, which includes a louver system having a multiple of slats generally transverse to the engine axis. Each of the louver slats are pivotally mounted to the fan nacelle to vary the effective area of the fan nozzle exit area and permit efficient engine operation at predefined pressure ratios.
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