The mixture formation prior to the ignition process plays as a key element in the diesel combustion. Parametric studies of mixture formation and ignition process in various injection parameter has received considerable attention in potential for reducing emissions. Purpose of this study is to clarify the effects of injection pressure on mixture formation and ignition especially during ignition ...

Abstract In this study, a single-cylinder direct-injection spark-ignition research engine with full optical access was used to investigate the influence of flow field and fuel/air mixing on cyclic variability, in particular early flame propagation. The operated under lean-burn conditions at 1500 rpm. Two different injection strategies were compared, port-fuel (PFI) direct (DI), latter late spli...

The engine manufacturer has aimed to attain optimum values for engines operating different loads and speeds by utilizing the characteristics of both spark-ignition having a ready combustion control compression ignition resulting in low emissions, fuel consumption and, high output power years. In this regard, efforts on improvement performance, thermal efficiency have been constantly continuing ...

The core theme of the paper is misfire detection using random forest algorithm and decision tree based machine learning models for emission minimization in gasoline passenger vehicles. The engine block vibration signals are used for misfire detection. The signal is a combination of all vibration emissions of various engine components and also contains the vibration signature due to misfire. The...