Patent ID: 8047790

Claim:
A turbine blade having a leading edge and a trailing edge, and a pressure side and a suction side, the turbine blade comprising: a cooling air supply cavity formed within a root portion of the blade; a plurality of pressure side radial extending cooling channels connected to the supply cavity; a plurality of suction side radial extending cooling channels connected to the supply cavity; a pressure side collection cavity formed between the mid-chord of the blade and the pressure side radial extending cooling channels, the pressure side collection cavity being in fluid communication with the plurality of pressure side radial extending cooling channels; a suction side collection cavity formed between the mid-chord of the blade and the suction side radial extending cooling channels, the suction side collection cavity being in fluid communication with the plurality of suction side radial extending cooling channels; a row of pressure side film cooling holes connected to the pressure side collection cavity; and, a row of suction side film cooling holes connected to the suction side collection cavity.