Advanced engine management of individual cylinders for control of exhaust species
- Knoxville, TN
A method and system controls engine-out exhaust species of a combustion engine having a plurality of cylinders. The method typically includes various combinations of steps such as controlling combustion parameters in individual cylinders, grouping the individual cylinders into a lean set and a rich set of one or more cylinders, combusting the lean set in a lean combustion parameter condition having a lean air:fuel equivalence ratio, combusting the rich set in a rich combustion parameter condition having a rich air:fuel equivalence ratio, and adjusting the lean set and the rich set of one or more cylinders to generate net-lean combustion. The exhaust species may have elevated concentrations of hydrogen and oxygen.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-00OR22725
- Assignee:
- ORO
- Patent Number(s):
- 7,469,693
- Application Number:
- 11/691,539
- OSTI ID:
- 985545
- Country of Publication:
- United States
- Language:
- English
An investigation of the thermal stability and sulphur tolerance of Ag/γ-Al2O3 catalysts for the SCR of NOx with hydrocarbons and hydrogen
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journal | January 2007 |
Control of nitrogen oxide (NOx) emissions by selective catalytic reduction with hydrogen over hydrophobic catalysts
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journal | November 1989 |
An Investigation of Promoter Effects in the Reduction of NO by H2 under Lean-Burn Conditions
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journal | June 2002 |
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