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Apparatus and method for a gas turbine nozzle

United States Patent

February 5, 2013
View the Complete Patent at the US Patent & Trademark Office
A nozzle includes an inlet, an outlet, and an axial centerline. A shroud surrounding the axial centerline extends from the inlet to the outlet and defines a circumference. The circumference proximate the inlet is greater than the circumference at a first point downstream of the inlet, and the circumference at the first point downstream of the inlet is less than the circumference at a second point downstream of the first point. A method for supplying a fuel through a nozzle directs a first airflow along a first path and a second airflow along a second path separate from the first path. The method further includes injecting the fuel into at least one of the first path or the second path and accelerating at least one of the first airflow or the second airflow.
Zuo; Baifang (Simpsonville, SC), Ziminsky; Willy Steve (Greenville, SC), Johnson; Thomas Edward (Greer, SC), Intile; John Charles (Simpsonville, SC), Lacy; Benjamin Paul (Greer, SC)
General Electric Company (Schenectady, NY)
12/ 570,678
September 30, 2009
FEDERAL RESEARCH STATEMENT This invention was made with Government support under Contract No. DE-FC26-05NT42643, awarded by the Department of Energy. The Government has certain rights in the invention.