Patent ID: 6164913
Filing Date: 2000-12-26
Classification: F01D,Y02T

Abstract:
A turbine airfoil comprising:first and second sidewalls joined together at leading and trailing edges and extending longitudinally from a root to tip, with a pitchline therebetween;said sidewalls being spaced apart between said leading and trailing edges to define an internal cooling circuit therebetween for channeling a coolant;a column of longitudinally spaced apart ejection slots extending through said first sidewall along said trailing edge, and disposed in flow communication with said cooling circuit for discharging said coolant toward said trailing edge; andsome of said slots being disposed between said pitchline and tip, and inclined at different ejection angles longitudinally outwardly from said pitchline, and some of said slots being disposed between said pitchline and root, and extending at least parallel with said pitchline without longitudinally inward inclination.