COOLING SYSTEM FOR A GAS TURBINE USING A CYCLINDRICAL INSERT HAVING V-SHAPED NOTCH WEIRS

摘要

51DV 2630 IMPROVED COOLING SYSTEM FOR A GAS TURBINE USING A CYLINDRICAL INSERT HAVING V-SHAPED NOTCH WEIRS An improved cooling system for a gas turbine is disclosed. A pluarality of V-shaped notch weirs are utilized to meter a coolant liquid from a pool of cooolant into a plurality of platform and airfoil coolant channels formed in the buckets of the turbine. The V-shaped notch weirs are formed in a desensitize the flow of coolant into the and serve in a separately machined cylindrical insert individual platform and airfoil coolant channels to design tolerances and non-uniform flow distribution.