CONFIGURATION OF COOLING CHANNELS FOR COOLING TRAILING EDGE OF GAS TURBINE VANES

摘要

PURPOSE: Configuration of cooling channels for cooling trailing edge of gas turbine vanes is provided to cooling device which is minimized both of heating of cooling fluid by arriving time to the cooling channels ends for trailing edge part of air-foil and a pressure drop by fluid. CONSTITUTION: Device for cooling the trailing edge portion of a gas turbine vane. Two radially extending passages connect to the outer shroud direct cooling fluid to a plenum formed about mid-span adjacent the trailing edge. Two arrays of cooling fluid passages extend from the plenum. One array extends radially outward toward the outer shroud while the other array extends radially inward toward the inner shroud. The plenum distributes the cooling fluid to two arrays of passages so that it flows radially inward and outward to manifolds formed in the inner and outer shrouds. The manifolds direct the spent cooling fluid to a discharge passage.