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Turbine Airfoil Cooling System with Pin Fin Cooling Chambers

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
A cooling system for a turbine airfoil having at least one pin fin with a dimpled outer surface is disclosed. The dimpled outer surface increases the cooling efficiency of the pin fin, which creates numerous efficiencies, including thermal efficiencies, manufacturing efficiencies and the like. The dimples may be formed from shapes including, but not limited to, circular, oval, racetrack, and hemispherical. The dimples may be aligned in a variety of configurations.
Martin, Nicholas F. (Winter Park, FL), Marra, John J. (Winter Springs, FL), Seco-Soley, Melissa (Orlando, FL)
12/ 536,869
August 6, 2009
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH [0001] Development of this invention was supported in part by the United States Department of Energy, Contract No. DE-FC26-05NT42644, H2 Advanced Hydrogen Turbine Development, Phase 2. Accordingly, the United States Government may have certain rights in this invention.