| 摘要 |
A turbine blade or vane ( 1 ) has a shell ( 2 ), including a first side wall ( 8 ) and a second side wall ( 9 ), which are connected together at a leading edge ( 10 ) and at a trailing edge ( 11 ), which extend longitudinally from a root ( 7 ) to a tip ( 6 ) and which are connected together between leading edge ( 10 ) and trailing edge ( 11 ) by a plurality of inner ribs ( 13 ). In the inner region ( 12 ) of the turbine blade/vane ( 1 ), the ribs ( 13 ) form at least one cooling gas path ( 15 ), which guides a cooling gas flow from the root ( 7 ) to the tip ( 6 ) and, in the process, is deflected a plurality of times in serpentine shape from the outside to the inside and from the inside to the outside. In order to increase the life of the turbine blade/vane ( 1 ), at least one bypass opening ( 18 ) and/or at least one outlet opening ( 19 ) are arranged in the region of at least one rib ( 13 ), which deflects the cooling gas flow from the outside to the inside, the bypass opening ( 18 ) penetrating the rib ( 13 ) at the shell ( 2 ) and the outlet opening ( 19 ) penetrating the shell ( 2 ).
|
