Patent ID: 7922451
Filing Date: 2011-04-12
Classification: F01D,F05D

Abstract:
1. A turbine blade comprising: a pressure side wall and a suction side wall; a squealer tip formed by a pressure tip rail and a suction tip rail; a squealer pocket formed between the pressure and suction tip rails, the squealer pocket having a squealer floor; a cooling supply cavity formed within the blade; a pressure side wall film cooling channel connected to the cooling supply cavity, the pressure side wall film cooling channel being oriented to discharge cooling air toward the pressure side tip rail crown; a pressure side tip rail cooling channel connected to the cooling supply cavity, the pressure side tip rail cooling channel being oriented to discharge cooling air toward a gap formed between the pressure side tip rail crown and an outer shroud forming a leakage flow gap; a pressure side pocket cooling channel connected to the cooling supply cavity, the pressure side pocket cooling channel being oriented to discharge cooling air toward the pocket side surface of the pressure side tip rail; and, the pressure side wall film cooling channel, the pressure side tip rail cooling channel, and the pressure side pocket cooling channel are each discrete curved cooling channels having a curvature in the same direction.