Patent ID: 7413406
Filing Date: 2008-08-19
Classification: F01D,F05D,Y02T

Abstract:
1. A turbine blade comprising: an airfoil having a leading edge, a trailing edge, a first side wall, a second side wall, a base region, and a tip region; a plurality of cooling channels radially extending within the airfoil for directing cooling air through the airfoil, each cooling channel having a first end and a second end and a cross-sectional area at the first end, wherein each cooling channel directs cooling air in a radially outward direction from the base region to the tip region so that air flows through the airfoil without taking a serpentine path; and an orifice adjacent the first end of each cooling channel, a cross-sectional area of the orifice being less than the cross-sectional area of the first end of the adjacent cooling channel.