FIELD: machine building.
SUBSTANCE: vane comprises a platform and airfoil extending from said platform and connected to the platform by a fillet. Impingement tube is inserted into said airfoil delimiting a cooling channel between the impingement tube and the side walls. Vane further comprises a baffle structure positioned adjacent the fillet and which follows the inside contour of the fillet; delimiting a first cooling passage between the fillet and the baffle structure. First obstruction is arranged on the inside of the airfoil at the connection of the fillet to the side walls for separating the first cooling passage from the cooling channel in the airfoil and to guide the cooling gas from the first cooling passage into the impingement tube.
EFFECT: invention is aimed at improving cooling efficiency.
15 cl, 8 dwg
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