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    • 10. 发明授权
    • Turbine airfoil
    • 涡轮翼型
    • US08393872B2
    • 2013-03-12
    • US12605054
    • 2009-10-23
    • Kevin Richard Kirtley
    • Kevin Richard Kirtley
    • F03B3/12
    • F01D5/141F05D2240/301
    • An airfoil is provided and includes a pressure surface and a suction surface. Radially corresponding surface characteristics of the pressure and suction surfaces at a spanwise local portion of the airfoil are formed to cooperatively define at least one of a camber line and a thickness distribution plot of the airfoil as having a radius of curvature with at least two sign changes. The number of sign changes decreases along a radial dimension of the airfoil measured from the spanwise local portion.
    • 提供翼型件,其包括压力表面和吸力表面。 形成在翼型的翼展方向局部部分处的压力和吸力表面的径向对应的表面特征,以协同地限定翼型的弯度线和厚度分布图中的至少一个,其具有具有至少两个符号变化的曲率半径 。 符号变化的数量沿着从翼展方向局部部分测量的翼型件的径向尺寸减小。