Invention Grant
US08850793B2 Turbine section of high bypass turbofan 有权
高旁路涡轮风扇涡轮段

Turbine section of high bypass turbofan
Abstract:
A turbofan engine is disclosed and includes a fan and a compressor in communication with the fan section, a combustor, a turbine and a speed reduction mechanism coupled to the fan and rotatable by the turbine. The turbine includes a first turbine section that includes three or more stages and a second turbine section that includes at least two stages. A ratio of airfoils in the first turbine section to a bypass area is less than about 170.
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