Fuel mixture stratification as a method for improving homogeneous charge compression ignition engine operation
Abstract
A method for slowing the heat-release rate in homogeneous charge compression ignition ("HCCI") engines that allows operation without excessive knock at higher engine loads than are possible with conventional HCCI. This method comprises injecting a fuel charge in a manner that creates a stratified fuel charge in the engine cylinder to provide a range of fuel concentrations in the in-cylinder gases (typically with enough oxygen for complete combustion) using a fuel with two-stage ignition fuel having appropriate cool-flame chemistry so that regions of different fuel concentrations autoignite sequentially.
- Inventors:
-
- Livermore, CA
- Issue Date:
- Research Org.:
- Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 908050
- Patent Number(s):
- 7128046
- Application Number:
- 11/095,256
- Assignee:
- a National Laboratories (Livermore, CA)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02B - INTERNAL-COMBUSTION PISTON ENGINES
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:
- AC04-94AL85000
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 33 ADVANCED PROPULSION SYSTEMS
Citation Formats
Dec, John E, and Sjoberg, Carl-Magnus G. Fuel mixture stratification as a method for improving homogeneous charge compression ignition engine operation. United States: N. p., 2006.
Web.
Dec, John E, & Sjoberg, Carl-Magnus G. Fuel mixture stratification as a method for improving homogeneous charge compression ignition engine operation. United States.
Dec, John E, and Sjoberg, Carl-Magnus G. Tue .
"Fuel mixture stratification as a method for improving homogeneous charge compression ignition engine operation". United States. https://www.osti.gov/servlets/purl/908050.
@article{osti_908050,
title = {Fuel mixture stratification as a method for improving homogeneous charge compression ignition engine operation},
author = {Dec, John E and Sjoberg, Carl-Magnus G},
abstractNote = {A method for slowing the heat-release rate in homogeneous charge compression ignition ("HCCI") engines that allows operation without excessive knock at higher engine loads than are possible with conventional HCCI. This method comprises injecting a fuel charge in a manner that creates a stratified fuel charge in the engine cylinder to provide a range of fuel concentrations in the in-cylinder gases (typically with enough oxygen for complete combustion) using a fuel with two-stage ignition fuel having appropriate cool-flame chemistry so that regions of different fuel concentrations autoignite sequentially.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {10}
}
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Works referenced in this record:
Isolating the Effects of Fuel Chemistry on Combustion Phasing in an HCCI Engine and the Potential of Fuel Stratification for Ignition Control
conference, March 2004
- Dec, John E.; Sjöberg, Magnus
- SAE 2004 World Congress & Exhibition, SAE Technical Paper Series