This study takes light-passenger vehicles with 1.5L port fuel injection turbocharged engine as the research object, based on WLTC test cycle about China 6b emissions regulations, including some influence of several key technologies, such injector selection, intake VVT opening, control and gear shift point matching, what can affect particulate from vehicles. The results show that without filter ...

In modern engines with higher compression ratios, severe pressures and non-uniform heating up is occurred for the engine parts. The piston as the most critical part among all automotive components has been the subject of numerous studies on calculation of temperature distribution, but thermal stress analyses are limited. In this study, the piston of gasoline engine XU7 which is widespread in Ir...

: Gasoline-ethanol-methanol (GEM) blends have been considered to replace pure gasoline for spark ignition engine fuel. Its physical and chemical properties as well performance emission measurements from real engines reported in the literature, but it lacks fundamental study that can explain unique results of GEM compared gasoline. This aims compare laminar burning velocity at different mixtures...

This paper presents a failure analysis on a failed intake valve in a gasoline engine. During an endurance test, an intake valve was broken and caused some damages on the piston. Material examinations (by a light microscope and also a scanning electron microscope) were conducted on the fracture surface of the intake valve shaft. Results showed that no pores or defects could be observed and the m...

in this paper, a numerical study is performed to provide the combustion and emission characteristics resulting from fuel-reactivity controlled compression ignition (rcci) combustion mode in a heavy-duty, single-cylinder diesel engine with gasoline and diesel fuels. in rcci strategy in-cylinder fuel blending is used to develop fuel reactivity gradients in the combustion chamber that result in a ...

This paper describes an investigation in which a fuzzy control paradigm was applied to a small spark-ignition gasoline-fuelled internal-combustion engine, to achieve regulation of the fuel injection system. The control system determined the amount of fuel required from a fuzzy algorithm that used the engine speed and manifold air pressure as input values. The parameters of the fuzzy system cons...