| 摘要 |
PROBLEM TO BE SOLVED: To avoid high stresses in a fillet region and assure safe and efficient cooling of the fillet and efficient use of a cooling gas.SOLUTION: A vane (10) comprises a platform (18) and an airfoil (11), and the airfoil extends from the platform and is connected to the platform by a fillet. An impingement tube inserted into the airfoil delimits a cooling channel (26) between the impingement tube and side walls (14a, 15a). The vane further comprises a baffle structure (20) positioned adjacently to the fillet, the baffle structure follows the inside contour of the fillet; delimiting a first cooling passage (23) between the fillet and the baffle structure. A first obstruction is arranged inside the airfoil at the connection of the fillet to the side walls to separate the first cooling passage from the cooling channel and to guide a cooling gas from the first cooling passage into the impingement tube. |
