| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooling structure for a trailing edge region of a rotor blade, having an acceptable level of capability of being cast for its manufacture, as well as blade stress and metal temperature at an acceptable level under the running conditions. SOLUTION: An airfoil has heat transfer parts (106, 108, 112) at its rearmost part of the trailing edge region, and these heat transfer parts include a row of flow dividers (112) that extend in the direction of the vane chord. At least one of these flow dividers (112) includes a sidewall (144) that radially faces inward and a sidewall (142) that radially faces outward, with a diffusion angleαof the sidewall (144) radially facing inward being greater than diffusion angelβof the sidewall (142) radially facing outward. |
