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Cooling system having reduced mass pin fins for components in a gas turbine engine

United States Patent

8,668,453
March 11, 2014
View the Complete Patent at the US Patent & Trademark Office
U.S. Department of Energy - Visit the Office of the Assistant General Counsel for Technology Transfer & Intellectual Property Website
A cooling system having one or more pin fins with reduced mass for a gas turbine engine is disclosed. The cooling system may include one or more first surfaces defining at least a portion of the cooling system. The pin fin may extend from the surface defining the cooling system and may have a noncircular cross-section taken generally parallel to the surface and at least part of an outer surface of the cross-section forms at least a quartercircle. A downstream side of the pin fin may have a cavity to reduce mass, thereby creating a more efficient turbine airfoil.
Lee; Ching-Pang (Cincinnati, OH), Jiang; Nan (Jupiter, FL), Marra; John J. (Winter Sprints, FL)
Siemens Energy, Inc. (Orlando, FL)
13/ 027,323
20120207591
February 15, 2011
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT Development of this invention was supported in part by the United States Department of Energy, H2 Program, Contract No. DE-FC26-05NT42644. Accordingly, the United States Government may have certain rights in this invention.