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Title: Systems and methods for controlling diesel engine emissions

Abstract

Systems and methods for controlling diesel engine emissions, including, for example, oxides of nitrogen emissions, particulate matter emissions, and the like. The emission control system according to this invention is provided in the exhaust passageway of a diesel engine and includes a catalyst-based particulate filter; and first and second lean NO.sub.x trap systems coupled to the catalyst-based particulate filter. The first and second lean NO.sub.x trap systems are arranged in a parallel flow configuration with each other. Each of the first and second lean NO.sub.x trap systems include a carbon monoxide generating catalyst device, a sulfur trap device, a lean NO.sub.x device, a supplemental fuel injector device, and a plurality of flow diverter devices.

Inventors:
; ;
Issue Date:
Research Org.:
Southwest Research Institute, San Antonio, TX (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1174870
Patent Number(s):
6742328
Application Number:
10/268,896
Assignee:
Southwest Research Institute
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
DOE Contract Number:  
NCI-1-31024-02
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS

Citation Formats

Webb, Cynthia Chaffin, Weber, Phillip Anthony, and Khair, Magdi K. Systems and methods for controlling diesel engine emissions. United States: N. p., 2004. Web.
Webb, Cynthia Chaffin, Weber, Phillip Anthony, & Khair, Magdi K. Systems and methods for controlling diesel engine emissions. United States.
Webb, Cynthia Chaffin, Weber, Phillip Anthony, and Khair, Magdi K. Tue . "Systems and methods for controlling diesel engine emissions". United States. https://www.osti.gov/servlets/purl/1174870.
@article{osti_1174870,
title = {Systems and methods for controlling diesel engine emissions},
author = {Webb, Cynthia Chaffin and Weber, Phillip Anthony and Khair, Magdi K.},
abstractNote = {Systems and methods for controlling diesel engine emissions, including, for example, oxides of nitrogen emissions, particulate matter emissions, and the like. The emission control system according to this invention is provided in the exhaust passageway of a diesel engine and includes a catalyst-based particulate filter; and first and second lean NO.sub.x trap systems coupled to the catalyst-based particulate filter. The first and second lean NO.sub.x trap systems are arranged in a parallel flow configuration with each other. Each of the first and second lean NO.sub.x trap systems include a carbon monoxide generating catalyst device, a sulfur trap device, a lean NO.sub.x device, a supplemental fuel injector device, and a plurality of flow diverter devices.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {6}
}