Technical Paper
The Use of Split-Injection Technique and Ethanol Lean Combustion on a SIDI Engine Operation for Reducing the Fuel Consumption and Pollutant Emissions
2017-11-07
2017-36-0259
The current energy and climate world condition presents the need for development of increasingly efficient and sustainable internal combustion engines. In order to meet these requirements, environmental regulatory agencies establish long-term goals of fuel consumption and pollutant gases emissions reduction, which in turn lead the engines to a constant evolution. Thus, this work exploits some recent technologies that tend to minimize the environmental impact of the world’s extensive automotive fleet. Among them, direct injection systems, especially with the use of biofuels, such as ethanol, allow the engine to operate under lean stratified conditions through split-injection. This strategy consists to split several times the fuel injection phase, so that an injection portion can be performed at the intake stroke and the other injection portion at the compression stroke.
