GAS TURBINE BLADE WITH INTERNAL COOLING PASSAGE STRUCTURE FOR IMPROVING COOLING PERFORMANCE AT INNER SURFACE OF GAS TURBINE BLADE TIP

摘要

PURPOSE: A gas turbine blade with internal cooling passage structure for improving cooling performance at inner surface of gas turbine blade tip is provided to prevent damage to a blade by improving cooling performance of tip inside which is damaged by thermal load. ;CONSTITUTION: A gas turbine blade with internal cooling passage structure for improving cooling performance at inner surface of gas turbine blade tip comprises a cooling fluid inducing path, a cooling fluid exhaust passage, and one or more projections. The cooling fluid inducing path and cooling fluid exhaust passage are formed in U-shape. One or more projections are installed on the tip surface of an inside flow path where the cooling fluid inflow and outflow passages are connected. Turbulence of cooling fluid is generated in the tip inner surface of the tip through the projection in order to improve the cooling performance of the tip inner surface.;COPYRIGHT KIPO 2011