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Air-Fuel Micromix Injector Having Multibank Ports for Adaptive Cooling of High Temperature Combustor

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
A method of using a combustor for high temperature combustion. The combustor is equipped with a showerhead type micromix air-fuel injector. The injector faceplate has its ports concentrically arranged into "banks", to which delivery of fuel can be controlled on a bank-by-bank basis. During combustor operation, the temperature of the air into the combustor is monitored. If the temperature is above a predetermined threshold, fuel is delivered to fewer than all banks of ports. As a result, the bank(s) of ports to which fuel is not delivered inject only air into the combustion chamber, and the other bank(s) of ports inject the air-fuel mixture as usual.
Coogan, Shane B. (San Marcos, TX), Brun, Klaus (Helotes, TX)
14/ 257,847
April 21, 2014
GOVERNMENT RIGHTS CLAUSE [0001] This invention was made with United States Government support under Contract No. DE-EE0005805 awarded by the Department of Energy. The Government has certain rights in this invention.