CORE ASSEMBLY AND BLADE ASSEMBLY USING THE SAME, AND COOLING FLOW PATH FORMING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a core assembly used in manufacturing a blade assembly and good in manufacturing efficiency. SOLUTION: The turbine blade assembly 10 has a cooling air flow path 30. The cooling air flow path 30 has a plurality of impingement openings 32 isolated from at least one impingement opening 32 adjacent thereto. The cooling air flow path is formed and cast in the turbine blade assembly 10 using a single core 44. The single core 44 forms a functional member 38 required for manufacturing various impingement openings 32 to be separated and isolated from each other. The isolation and combination of the impingement openings 32 actualize an increase in convection and the cooling of a film and impart flexibility in adjusting an air flow on a blade 12 to optimize the heat performance of the blade 12. COPYRIGHT: (C)2006,JPO&NCIPI