FILM COOLED TURBINE COMPONENT
    3.
    发明申请
    FILM COOLED TURBINE COMPONENT 审中-公开
    电影冷却涡轮组件

    公开(公告)号:US20130156602A1

    公开(公告)日:2013-06-20

    申请号:US13328733

    申请日:2011-12-16

    IPC分类号: F01D5/18

    摘要: Film cooling of turbine component surfaces, such as high-lift airfoil surfaces, is achieved by a flow of cooling air through film cooling holes of generally constant cross-sectional area, which extend from the surfaces to a radial cooling passage within the airfoil. The film cooling holes are angularly offset from that portion of the radial cooling passage immediately upstream of the film cooling holes by an acute angle which effects a radial reversal of the flow of cooling air into the film cooling holes from the radial cooling passage to reduce the momentum of airflow through the film cooling holes to reduce separation of cooling air film from the surface.

    摘要翻译: 涡轮机部件表面(例如高升力翼型件表面)的薄膜冷却通过冷却空气流通过通常恒定的横截面面积的膜冷却孔而实现,该冷却空气从表面延伸到翼型内的径向冷却通道。 薄膜冷却孔与紧固在薄膜冷却孔上游的径向冷却通道的一部分成角度偏离锐角,从而使冷却空气从径向冷却通道进入薄膜冷却孔的流动径向反转,从而减少 气流通过薄膜冷却孔的动量,以减少冷却空气膜与表面的分离。