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Premixing direct injector

United States Patent

April 17, 2012
View the Complete Patent at the US Patent & Trademark Office
A fuel injection nozzle comprises a body member having an upstream wall opposing a downstream wall, a baffle member having an upstream surface and a downstream surface, a first chamber, a second chamber, a fuel inlet communicative with the first chamber operative to emit a first gas into the first chamber, and a plurality of mixing tubes, each of the mixing tubes having a tube inner surface, a tube outer surface, a first inlet communicative with an aperture in the upstream wall operative to receive a second gas, a second inlet communicative with the tube outer surface and the tube inner surface operative to translate the first gas into the mixing tube, a mixing portion operative to mix the first gas and the second gas, and an outlet communicative with an aperture in the downstream wall operative to emit the mixed first and second gasses.
Johnson; Thomas Edward (Greer, SC), Stevenson; Christian Xavier (Inman, SC), York; William David (Greer, SC), Ziminsky; Willy Steve (Simpsonville, SC)
General Electric Company (Schenectady, NY)
12/ 417,896
April 3, 2009
FEDERAL RESEARCH STATEMENT This invention was made with Government support under Government Contract #DE-FC26-05NT42643 awarded by Department of Energy. The Government has certain rights in this invention.