The ever more stringent vehicle emissions rules lead gasoline engine research and
development toward usage of direct injection systems. This technology is already present in …

Turbulent combustion will remain central to the next generation of combustion devices that
are likely to employ blends of renewable and fossil fuels, transitioning eventually to …

Dual-mode dual-fuel combustion stands as one of the promising techniques to allow the
dual-fuel operation along the whole engine map. This concept relies on using different …

Volatile organic compounds (VOCs) from vehicular exhaust are the key precursors of ozone
formation in urban areas. However, few studies have comprehensively investigated the …

Cold-start emissions remain a barrier to vehicle emissions targets and the race to zero
impact emissions. Current aftertreatment catalysts are highly efficient once active but …

In this study, the piston bowl geometry and injector design of a light-duty GCI engine were co-
optimized using computational fluid dynamics (CFD) and advanced machine learning (ML) …

Cold-start, as defined by the time between first engine crank and three-way catalyst light-off,
is responsible for a large percentage of NO x, unburned hydrocarbon, and particulate matter …

Abstract The US Department of Energy's Co-Optima initiative has focused on improving fuel
economy and vehicle performance while reducing emissions through the simultaneous …

A blend of low-octane (light and heavy naphtha) and high-octane (reformate) distillate fuels
has been proposed for powering gasoline compression ignition (GCI) engines. The …

In this study, computational fluid dynamics (CFD) and machine learning (ML) were used to
investigate the effects of and optimize the injector design parameters for light-duty gasoline …