Diesel engine emissions reduction by multiple injections having increasing pressure
Abstract
Multiple fuel charges are injected into a diesel engine combustion chamber during a combustion cycle, and each charge after the first has successively greater injection pressure (a higher injection rate) than the prior charge. This injection scheme results in reduced emissions, particularly particulate emissions, and can be implemented by modifying existing injection system hardware. Further enhancements in emissions reduction and engine performance can be obtained by using known measures in conjunction with the invention, such as Exhaust Gas Recirculation (EGR).
- Inventors:
-
- Madison, WI
- Issue Date:
- OSTI Identifier:
- 875080
- Patent Number(s):
- 6526939
- Assignee:
- Wisconsin Alumni Research Foundation (Madison, WI)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02B - INTERNAL-COMBUSTION PISTON ENGINES
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES
- DOE Contract Number:
- FG04-2000AL66549
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- diesel; engine; emissions; reduction; multiple; injections; increasing; pressure; fuel; charges; injected; combustion; chamber; cycle; charge; successively; injection; rate; prior; scheme; results; reduced; particulate; implemented; modifying; existing; hardware; enhancements; performance; obtained; measures; conjunction; exhaust; gas; recirculation; egr; combustion chamber; diesel engine; multiple fuel; /123/
Citation Formats
Reitz, Rolf D, and Thiel, Matthew P. Diesel engine emissions reduction by multiple injections having increasing pressure. United States: N. p., 2003.
Web.
Reitz, Rolf D, & Thiel, Matthew P. Diesel engine emissions reduction by multiple injections having increasing pressure. United States.
Reitz, Rolf D, and Thiel, Matthew P. Wed .
"Diesel engine emissions reduction by multiple injections having increasing pressure". United States. https://www.osti.gov/servlets/purl/875080.
@article{osti_875080,
title = {Diesel engine emissions reduction by multiple injections having increasing pressure},
author = {Reitz, Rolf D and Thiel, Matthew P},
abstractNote = {Multiple fuel charges are injected into a diesel engine combustion chamber during a combustion cycle, and each charge after the first has successively greater injection pressure (a higher injection rate) than the prior charge. This injection scheme results in reduced emissions, particularly particulate emissions, and can be implemented by modifying existing injection system hardware. Further enhancements in emissions reduction and engine performance can be obtained by using known measures in conjunction with the invention, such as Exhaust Gas Recirculation (EGR).},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 2003},
month = {Wed Jan 01 00:00:00 EST 2003}
}
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Works referenced in this record:
Six-Mode Cycle Evaluation of the Effect of EGR and Multiple Injections on Particulate and NOx Emissions from a D.I. Diesel Engine
conference, February 1996
- Montgomery, D. T.; Reitz, Rolf D.
- International Congress & Exposition, SAE Technical Paper Series
Reducing Particulate and NOx Using Multiple Injections and EGR in a D.I. Diesel
conference, February 1995
- Pierpont, D. A.; Montgomery, D. T.; Reitz, Rolf D.
- International Congress & Exposition, SAE Technical Paper Series
Reducing Particulate and NOx Emissions by Using Multiple Injections in a Heavy Duty D.I. Diesel Engine
conference, March 1994
- Tow, T. C.; Pierpont, D. A.; Reitz, Rolf D.
- International Congress & Exposition, SAE Technical Paper Series