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Annular fuel and air co-flow premixer

United States Patent

October 15, 2013
View the Complete Patent at the US Patent & Trademark Office
Disclosed is a premixer for a combustor including an annular outer shell and an annular inner shell. The inner shell defines an inner flow channel inside of the inner shell and is located to define an outer flow channel between the outer shell and the inner shell. A fuel discharge annulus is located between the outer flow channel and the inner flow channel and is configured to inject a fuel flow into a mixing area in a direction substantially parallel to an outer airflow through the outer flow channel and an inner flow through the inner flow channel. Further disclosed are a combustor including a plurality of premixers and a method of premixing air and fuel in a combustor.
Stevenson; Christian Xavier (Inman, SC), Melton; Patrick Benedict (Horse Shoe, NC), York; William David (Greer, SC)
General Electric Company (Schenectady, NY)
12/ 360,449
January 27, 2009
STATEMENT REGARDING GOVERNMENT INTEREST This invention was made with United States Government support under Contract No. DE-FC26-05NT42643 awarded by the Department of Energy. The Government has certain rights in the invention.