| 摘要 |
A turbine blade includes: a base portion fixed to a rotor; a platform that is fixed to the base portion and includes a cooling flow channel; a blade shape portion that extends from the platform to an outer side in a radial direction; and a fillet portion provided in a joint surface between the blade shape portion and the platform, and the turbine blade further includes: a main pipe that is branched off from the cooling flow channel and has an opening at a side end portion of the platform; and a branch pipe that is branched off from the main pipe, extends along the fillet portion so as to be close thereto on an inner side in the radial direction, and includes a film cooling hole opened on a surface of the platform. |
