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Low emissions compression ignited engine technology

United States Patent

7,198,024
April 3, 2007
View the Complete Patent at the US Patent & Trademark Office
A method and apparatus for operating a compression ignition engine having a cylinder wall, a piston, and a head defining a combustion chamber. The method and apparatus includes delivering fuel substantially uniformly into the combustion chamber, the fuel being dispersed throughout the combustion chamber and spaced from the cylinder wall, delivering an oxidant into the combustion chamber sufficient to support combustion at a first predetermined combustion duration, and delivering a diluent into the combustion chamber sufficient to change the first predetermined combustion duration to a second predetermined combustion duration different from the first predetermined combustion duration.
Coleman; Gerald N. (Dunlap, IL), Kilkenny; Jonathan P. (Peoria, IL), Fluga; Eric C. (Dunlap, IL), Duffy; Kevin P. (East Peoria, IL)
Caterpillar Inc (Peoria, IL)
11/ 333,391
January 17, 2006
U.S. GOVERNMENT RIGHTS The U.S. Government has rights in the invention pursuant to Department of Energy Contract No. DEFC 05-970R22605.