| 摘要 |
An airfoil (10) includes at least one cooling passage (20) for delivering cooling fluid (CF) from a chamber (15) defined within the airfoil (10) to an outer surface (16) of the airfoil (10). The cooling passage(s) (20) includes an entrance portion (22) at an inner surface (14) of the airfoil (10) and a diffusion portion (28) that includes a plurality of diverging locations (50, 52, 54, 60, 62, 64) where walls (32, 34, 36, 38) defining the diffusion portion (28) diverge from one another. The cooling fluid passage(s) (20) promotes a flow of cooling fluid (CF) out of an outlet (30) to provide film cooling for the outer surface (16) of the airfoil (10). |
