| 摘要 |
An airfoil (200; 360; 700) is disclosed comprising a distal edge (224; 324), a proximal edge (222; 326), a pressure side surface (238) extending between the distal edge (224; 324) and the proximal edge (222; 326) and between a leading edge (236; 736) and a trailing edge (242; 742), the leading edge (236; 736) forward of the trailing edge (242; 742), wherein a first cooling hole (216; 316) and a second cooling hole (218; 318) are disposed in the pressure side surface (238), wherein the first cooling hole (216; 316) is oriented at a first angle (¸) relative to the distal edge (224; 324) and the second cooling hole (218; 318) is oriented at a second angle (Æ) relative to the proximal edge (222; 326), wherein the first angle (¸) and the second angle (Æ) have bilateral symmetry about a plane (230; 330), wherein the plane (230; 330) is located at a point at least one of more than or less than the midpoint between the distal edge (224; 324) and proximal edge (222; 326). |
