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Staged multi-tube premixing injector

United States Patent

8,276,385
October 2, 2012
View the Complete Patent at the US Patent & Trademark Office
A fuel injection nozzle includes a body member having an upstream wall opposing a downstream wall, and an internal wall disposed between the upstream wall and the downstream wall, a first chamber partially defined by the an inner surface of the upstream wall and a surface of the internal wall, a second chamber partially defined by an inner surface of the downstream wall and a surface of the internal wall a first gas inlet communicative with the first chamber operative to emit a first gas into the first chamber, a second gas inlet communicative with the second chamber operative to emit a second gas into the second 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 third gas.
Zuo; Baifang (Simpsonville, SC), Khan; Abdul Rafey (Greenville, SC), York; William David (Greer, SC), Ziminsky; Willy Steve (Greenville, SC)
General Electric Company (Schenectady, NY)
12/ 575,929
October 8, 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.