| 主权项 |
1. An airfoil, comprising:
a. an interior surface; b. an exterior surface opposed to the interior surface, wherein the exterior surface comprises a pressure side, a suction side opposed to the pressure side, a stagnation line between the pressure and suction sides, and a trailing edge between the pressure and suction sides and downstream from the stagnation line; c. a plurality of trench segments on the exterior surface, each trench segment being partitioned from radially adjacent trench segments by one or more walls which include a portion of the exterior surface; and d. a single cooling passage in each trench segment, wherein each single cooling passage provides fluid communication from the interior surface into the corresponding trench segment and onto the exterior surface. |
