DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Apparatus and method to inject a reductant into an exhaust gas feedstream

Abstract

An exhaust aftertreatment system for an internal combustion engine is provided including an apparatus and method to inject a reductant into the exhaust gas feedstream. Included is a fuel metering device adapted to inject reductant into the exhaust gas feedstream and a controllable pressure regulating device. A control module is operatively connected to the reductant metering device and the controllable pressure regulating device, and, adapted to effect flow of reductant into the exhaust gas feedstream over a controllable flow range.

Inventors:
 [1]
  1. Macomb Township, MI
Issue Date:
Research Org.:
General Motors Corporation
Sponsoring Org.:
USDOE
OSTI Identifier:
988702
Patent Number(s):
7591132
Application Number:
11/533,425
Assignee:
GM Global Technology Operations, Inc. (Detroit, MI)
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
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
DOE Contract Number:  
FC26-02NT41218
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Viola, Michael B. Apparatus and method to inject a reductant into an exhaust gas feedstream. United States: N. p., 2009. Web.
Viola, Michael B. Apparatus and method to inject a reductant into an exhaust gas feedstream. United States.
Viola, Michael B. Tue . "Apparatus and method to inject a reductant into an exhaust gas feedstream". United States. https://www.osti.gov/servlets/purl/988702.
@article{osti_988702,
title = {Apparatus and method to inject a reductant into an exhaust gas feedstream},
author = {Viola, Michael B},
abstractNote = {An exhaust aftertreatment system for an internal combustion engine is provided including an apparatus and method to inject a reductant into the exhaust gas feedstream. Included is a fuel metering device adapted to inject reductant into the exhaust gas feedstream and a controllable pressure regulating device. A control module is operatively connected to the reductant metering device and the controllable pressure regulating device, and, adapted to effect flow of reductant into the exhaust gas feedstream over a controllable flow range.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {9}
}

Works referenced in this record:

In-Cylinder Production of Hydrogen During Net-Lean Diesel Operation
conference, April 2006


Selective Catalytic Reduction of NOx Emissions from a 5.9 Liter Diesel Engine Using Ethanol as a Reductant
conference, October 2003


Selective Catalytic Reduction of NOx with N-Free Reductants
journal, January 1995