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MULTI-TUBE LATE LEAN INJECTOR

United States Patent Application

20170370589
A1
View the Complete Application at the US Patent & Trademark Office
A micromixer injector includes a fuel plenum to receive a supply of fuel. A plurality of premixing tubes extend through the fuel plenum. Each tube has a plurality of fuel holes formed therein to receive the supply of fuel for mixing with air in the tube. The micromixer has a tapering profile such that an overall inlet area of the plurality of premixing tubes on an upstream face of the micromixer is larger than an overall outlet area of the plurality of premixing tubes on a downstream face such that the plurality of premixing tubes are relatively spaced-apart at the upstream face and more densely packed at the downstream face. Additionally, an air inlet of each tube has a first geometrical shape and the outlet of each tube has a second geometrical shape that is different from the first geometrical shape.
BERRY, Jonathan Dwight (Greenville, SC), HUGHES, Michael John (Greenville, SC)
15/ 189,708
June 22, 2016
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0001] This invention was made with Government support under Contract No. DE-FE0023965 awarded by the United States Department of Energy. The Government has certain rights in this invention.