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Full-Text Articles in Mechanical Engineering
Improving Startability And Reducing Emissions In Flexfuel Spark Ignition Direct Injection Variable Cam Timing Engine, Vaibhav S. Kale
Improving Startability And Reducing Emissions In Flexfuel Spark Ignition Direct Injection Variable Cam Timing Engine, Vaibhav S. Kale
Dissertations, Master's Theses and Master's Reports - Open
Experimental work and analysis was done to investigate engine startup robustness and emissions of a flex-fuel spark ignition (SI) direct injection (DI) engine. The vaporization and other characteristics of ethanol fuel blends present a challenge at engine startup. Strategies to reduce the enrichment requirements for the first engine startup cycle and emissions for the second and third fired cycle at 25°C ± 1°C engine and intake air temperature were investigated.
Research work was conducted on a single cylinder SIDI engine with gasoline and E85 fuels, to study the effect on first fired cycle of engine startup. Piston configurations that included …