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Exhaust purification with on-board ammonia production

United States Patent Application

20070227143
A1
View the Complete Application at the US Patent & Trademark Office
A first aspect of the present disclosure includes a power source for use with selective catalytic reduction systems for exhaust-gas purification. The power source may comprise a first cylinder group with a first air-intake passage and a first exhaust passage, and a second cylinder group with a second air-intake passage and a second exhaust passage. The power source may further include a first forced-induction system in fluid communication with the first air-intake passage, and a second forced-induction system in fluid communication with the second air-intake passage. A catalyst may be disposed downstream of the fuel-supply device to convert at least a portion of the exhaust stream in the first exhaust passage into ammonia.
Robel, Wade J. (Peoria, IL), Driscoll, James Joshua (Dunlap, IL), Easley, William L. JR. (West Peoria, IL), Roozenboom, Stephan D. (Washington, IL)
11/ 496,376
July 31, 2006
U.S. GOVERNMENT RIGHTS [0002] This invention was made with government support under the terms of Contract No. DE-FC05-00OR22806 awarded by the Department of Energy. The government may have certain rights in this invention.