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Differential pressure sensing system for airfoils usable in turbine engines

United States Patent

September 13, 2005
View the Complete Patent at the US Patent & Trademark Office
A detection system for identifying airfoils having a cooling systems with orifices that are plugged with contaminants or with showerheads having a portion burned off. The detection system measures pressures at different locations and calculates or measures a differential pressure. The differential pressure may be compared with a known benchmark value to determine whether the differential pressure has changed. Changes in the differential pressure may indicate that one or more of the orifices in a cooling system of an airfoil are plugged or that portions of, or all of, a showerhead has burned off.
Yang; Wen-Ching (Export, PA), Stampahar; Maria E. (Trafford, PA)
Siemens Westinghouse Power Corporation (Orlando, FL)
10/ 646,875
August 22, 2003
STATEMENT OF GOVERNMENT INTEREST Development for this invention was supported in part by U.S. Department of Energy Contract No. DE-FC26-01 NT41232. Accordingly, the United States Government may have certain rights in this invention.