公开(公告)号：US5151014A

公开(公告)日：1992-09-29

申请号：US737563

申请日：1991-07-26

申请人： C. Kent Greenwald ,  Leslie M. Gray ,  R. Bart Read ,  William Stevens

发明人： C. Kent Greenwald ,  Leslie M. Gray ,  R. Bart Read ,  William Stevens

IPC分类号： B64C3/58 ,  B64C11/22 ,  F01D5/14 ,  F04D29/32 ,  F04D29/38 ,  F04D29/68

CPC分类号： B64C3/58 ,  B64C11/22 ,  F01D5/14 ,  F04D29/324 ,  F04D29/384 ,  F04D29/681

摘要： An airfoil having a suction surface and a pressure surface, the surfaces joined together at leading and trailing portions of the airfoil, the pressure surface converging toward the suction surface at a corner, the surface converging at the corner by an angle approximately equal to or greater than at least 30.degree., such that an air stream flowing from the leading edge and over the pressure surface separates from the pressure surface at the corner. The fan therefore has a thick nose section and is substantially thinner over the majority of its chord length. One or more guide ribs extend from the pressure surface to control the flow of boundary layer air.

摘要翻译： 具有吸力表面和压力表面的翼型件，所述表面在所述翼型件的前部和后端处连接在一起，所述压力表面在拐角处朝着吸入表面会聚，所述表面在拐角处会聚约一等于或更大 比起至少30°，使得从前缘和压力表面上方流动的空气流与拐角处的压力表面分离。 因此，风扇具有较厚的鼻部，并且在其大部分弦长上基本上更薄。 一个或多个引导肋从压力表面延伸以控制边界层空气的流动。