Patent ID: 6126397
Filing Date: 2000-10-03
Classification: F01D

Abstract:
A coolable airfoil having a chordline and a mean camber line, said airfoil comprising:an internal cavity;an external wall, which includes a suction-side portion disposed on a first side of said mean camber line and a pressure-side portion disposed on a second side of said mean camber line opposite said first side, wherein said portions extend chordwise between a leading edge and a trailing edge and spanwise between an inner radial surface and an outer radial surface;a plurality of first apertures, disposed in said external wall adjacent said trailing edge, wherein said a first section of each said first aperture extends a distance within said suction-side portion of said wall and a second section of each said first aperture extends across said mean camber line and exits said external wall through said pressure-side portion of said wall;a plurality of second apertures, extending through said pressure-side portion of said wall and exiting said pressure-side portion of said wall upstream of and in close proximity to said first apertures.