Fuel mixture stratification as a method for improving homogeneous charge compression ignition engine operation
Patent
·
OSTI ID:908050
- Livermore, CA
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.
- Research Organization:
- Sandia National Laboratories (SNL-CA), Livermore, CA
- Sponsoring Organization:
- United States Department of Energy
- DOE Contract Number:
- AC04-94AL85000
- Assignee:
- a National Laboratories (Livermore, CA)
- Patent Number(s):
- 7,128,046
- Application Number:
- 11/095,256
- OSTI ID:
- 908050
- Country of Publication:
- United States
- Language:
- English
Isolating the Effects of Fuel Chemistry on Combustion Phasing in an HCCI Engine and the Potential of Fuel Stratification for Ignition Control
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conference | March 2004 |
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