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

Title: Low soot stoichiometric compression-ignition combustion

Abstract

A combustion system including a combustion mechanism that injects oxygenated fuel into a combustion chamber. The oxygenated fuel mixes with the intake air in the combustion chamber where the air-fuel ratio in a portion of the combustion chamber is stoichiometric. The combustion mechanism includes an ignition mechanism that ignites the air-fuel mixture that generates a threshold number of particulates during combustion of the air-fuel mixture. The combustion system further includes an exhaust gas recirculation (EGR) device that recirculates a portion of the exhaust gases back into the combustion chamber. The EGR device recirculates the portion of the exhaust to lower combustion temperature resulting in reduced amount of nitrogen oxide in the exhaust. The combustion system further includes a three-way catalytic converter in line with the exhaust channel to convert a second portion of the exhaust gases, leading to lower pollutant emissions than conventional combustion systems.

Inventors:
; ;
Issue Date:
Research Org.:
Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1998307
Patent Number(s):
11629661
Application Number:
17/498,967
Assignee:
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
DOE Contract Number:  
NA0003525
Resource Type:
Patent
Resource Relation:
Patent File Date: 10/12/2021
Country of Publication:
United States
Language:
English

Citation Formats

Pickett, Lyle M., Manin, Julien, and Wan, Kevin. Low soot stoichiometric compression-ignition combustion. United States: N. p., 2023. Web.
Pickett, Lyle M., Manin, Julien, & Wan, Kevin. Low soot stoichiometric compression-ignition combustion. United States.
Pickett, Lyle M., Manin, Julien, and Wan, Kevin. Tue . "Low soot stoichiometric compression-ignition combustion". United States. https://www.osti.gov/servlets/purl/1998307.
@article{osti_1998307,
title = {Low soot stoichiometric compression-ignition combustion},
author = {Pickett, Lyle M. and Manin, Julien and Wan, Kevin},
abstractNote = {A combustion system including a combustion mechanism that injects oxygenated fuel into a combustion chamber. The oxygenated fuel mixes with the intake air in the combustion chamber where the air-fuel ratio in a portion of the combustion chamber is stoichiometric. The combustion mechanism includes an ignition mechanism that ignites the air-fuel mixture that generates a threshold number of particulates during combustion of the air-fuel mixture. The combustion system further includes an exhaust gas recirculation (EGR) device that recirculates a portion of the exhaust gases back into the combustion chamber. The EGR device recirculates the portion of the exhaust to lower combustion temperature resulting in reduced amount of nitrogen oxide in the exhaust. The combustion system further includes a three-way catalytic converter in line with the exhaust channel to convert a second portion of the exhaust gases, leading to lower pollutant emissions than conventional combustion systems.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 18 00:00:00 EDT 2023},
month = {Tue Apr 18 00:00:00 EDT 2023}
}

Works referenced in this record:

Method for operating a vehicle with a fuel reformer
patent, November 2012


Low emissions diesel fuel
patent, February 1995


System and Methods for Reducing Particulate Matter Emissions
patent-application, October 2017


Engine performance and exhaust emissions in stoichiometric combustion engines fuelled with dimethyl ether
journal, November 2011


Method for Operating a Vehicle with a Fuel Reformer
patent-application, June 2011