COOLING CONFIGURATION FOR A TURBINE BLADE INCLUDING A SERIES OF SERPENTINE COOLING PATHS

摘要

A turbine blade includes an airfoil having an outer wall extending radially outwardly from a platform to a blade tip. The outer wall includes a pressure sidewall and a suction sidewall, which are joined together at chordally spaced apart leading and trailing edges of the airfoil. A pressure side serpentine cooling path includes a plurality of radially extending pressure side cooling channels and receives cooling fluid from a cooling fluid feed chamber located at least partially radially inwardly from the platform. A suction side serpentine cooling path includes a plurality of radially extending suction side cooling channels and receives cooling fluid from the pressure side serpentine cooling path. An intermediate serpentine cooling path includes a plurality of radially extending intermediate cooling channels located between the pressure and suction side cooling channels. The intermediate serpentine cooling path receives cooling fluid from the suction side serpentine cooling path.