Advanced engine management of individual cylinders for control of exhaust species
Abstract
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.
- Inventors:
-
- Knoxville, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 985545
- Patent Number(s):
- 7469693
- Application Number:
- 11/691,539
- Assignee:
- ORO
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02B - INTERNAL-COMBUSTION PISTON ENGINES
- DOE Contract Number:
- AC05-00OR22725
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Graves, Ronald L, West, Brian H, Huff, Shean P, and Parks, II, James E. Advanced engine management of individual cylinders for control of exhaust species. United States: N. p., 2008.
Web.
Graves, Ronald L, West, Brian H, Huff, Shean P, & Parks, II, James E. Advanced engine management of individual cylinders for control of exhaust species. United States.
Graves, Ronald L, West, Brian H, Huff, Shean P, and Parks, II, James E. Tue .
"Advanced engine management of individual cylinders for control of exhaust species". United States. https://www.osti.gov/servlets/purl/985545.
@article{osti_985545,
title = {Advanced engine management of individual cylinders for control of exhaust species},
author = {Graves, Ronald L and West, Brian H and Huff, Shean P and Parks, II, James E},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2008},
month = {12}
}
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