An investigation of supercharged CAI engine with internal gas recirculation and direct gasoline injection
 
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Publication date: 2012-09-01
 
 
Combustion Engines 2012,150(3), 63-71
 
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ABSTRACT
Influence of boost pressure on combustion process and exhaust emission in controlled auto-ignition (CAI) engine was studied. The examinations were carried out using single-cylinder engine with fully variable valvetrain and gasoline direct injection. In order to achieve auto-ignition in-cylinder temperature was elevated with the use of internal gas recirculation (EGR) obtained via the negative valve overlap (NVO) technique. Fuel dilution obtained via increase of intake pressure resulted in substantial reduction of cylinder-out nitrogen oxides emission. However application of boosting resulted in excessive advance of auto-ignition timing and increase of pressure rate rise (PRR) at higher engine loads.
 
CITATIONS (1):
1.
The effect of operating factors on the behavior of the combustion engine valve timing system
Krzysztof Siczek, Marek Woźniak, Adam Rylski, Wojciech Stachurski
Combustion Engines
 
eISSN:2658-1442
ISSN:2300-9896
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