Patent ID: 6981840
Filing Date: 2006-01-03
Classification: F01D,F05D,Y02T

Abstract:
1. A turbine airfoil comprising: transversely spaced apart pressure and suction sidewalls joined together at chordally opposite leading and trailing edges and extending in span from a root to a tip; a septum spaced between said pressure and suction sidewalls to define with said sidewalls first and second cooling circuits extending in span along opposite sides of said septum and converging between said leading and trailing edges; said first circuit being disposed along said pressure sidewall, and said second circuit being disposed along said suction sidewall and extending aft from said first circuit to said trailing edge; and an array of pins extending inwardly from said pressure sidewall at a discharge end of one of said first and second circuits, and said pins decrease in length to conform with said one circuit converging between said leading and trailing edges.