Patent ID: 6974308

Claim:
An air-cooled turbine blade, the blade having an airfoil shape defined by a convex suction side wall, a concave pressure side wall, a leading edge, a trailing edge, a root and a tip, the walls, edges, root and tip forming an interior for receiving blade cooling circuits; the turbine blade comprising: a plurality of independent cooling circuits within said interior, one of said cooling circuits being positioned to cool said pressure side wall and one other of said cooling circuits being positioned to cool said suction side wall; wherein said pressure side wall cooling circuit comprises a serpentine passage having a plurality of pin fins and a turning vane; wherein said plurality of cooling circuits comprises two of said cooling circuits positioned to cool said suction side wall, one closer to said leading edge and one closer to said trailing edge; and wherein said suction side wall cooling circuit closer to said trailing edge comprises a serpentine portion and a pin bank portion, said pin bank portion having a plurality of tear drop slots forming trailing edge air flow dividers for cooling said trailing edge.