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Combustion engine including exhaust purification with on-board ammonia production

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Engines and methods of controlling an engine may include producing ammonia from exhaust gas and using the ammonia to reduce certain emission components of the exhaust. Timing of valve closing/opening and use of an air supply system may enable engine operation according to a Miller cycle.
Weber, James R. (Lacon, IL), Leman, Scott A. (Eureka, IL), Coleman, Gerald N. (Corby, GB), Duffy, Kevin P. (Metamora, IL), Fluga, Eric C. (Dunlap, IL), Kilkenny, Jonathan P. (Peoria, IL), Robel, Wade J. (Peoria, IL), Driscoll, James J. (Dunlap, IL)
Caterpillar Inc.
10/ 992,070
November 19, 2004
[0003] For some of the embodiments disclosed herein, one or more parts was made with government support under the terms of Contract No. DE-FC05-970R22605 awarded by the Department of Energy. The government may have certain rights to certain inventions disclosed herein.