Electronic fuel injection (EFI) is a complex system, many parts are connected together from mechanical to electronic control the internal combustion engine. It must ensure different works and most important thing in motorsport achieve power optimization. High engine responsiveness often desired gain competitive edge. Usually enthusiast will upgrade car standard with aftermarket components such ...

This research/article aimed to analyze the influence of an after-treatment system (ATS) on emissions a heavy-duty spark-ignition (HD-SI) engine fueled with liquified petroleum gas (LPG), in context current Euro VI requirements. The ATS is composed by three-way catalyst (TWC) series diesel particle filter (DPF). Emissions testing were carried out test bench according homologation procedures, per...

In the present study, a computational fluid dynamics (CFD) method have been utilized to investigate the effects of exhaust gas recirculation (EGR) and initial charge pressure by means of using a supercharger on the emissions and performance of a SI engine. This engine is fueled separately by gasoline and two potential alternative fuels, hydrogen and ethanol. The results of simulation are compar...

Considering the disadvantages of gasoline and natural gas as mono-fuel in SI engines has made the researchers to improve the performance and reduce the pollutant as the advantages of the application of dual fuel engines. On the other hand, lean-burn in engine may lead to the reduced pollutant. In the present study various mixtures of gasoline and natural gas with the gasoline as the dominant fu...

conventional compression ignition (ci) engines are known for their high thermal efficiency compared to spark ignited (si) engines. gasoline because of its higher ignition delay has much lower soot emission in comparison with diesel fuel. using double injection strategy reduces the maximum heat release rate that leads to nox emission reduction. in this paper, a numerical study of a gasoline fuel...

The downsized spark ignition (SI) engine is considered as one promising technology to reduce pollutants and greenhouse gas emissions. By boosting the intake air pressure, this operating mode achieves higher efficiency, thus reducing pollutant Modeling combustion process in these drastic conditions (high high temperature dilution rate) remains challenging, however, since most of models premixed ...

The work presented in this paper is an attempt to evaluate the exhaust emission characteristics of a hydrogen-ethanol dual fuel combination with different percents of hydrogen substitutions (i.e. 0-80 % by volume and of 20 % increment ) at three different compression ratios of 7:1, 9:1 and 11:1. Experimental investigations have been carried out on a computer interfaced with; four-stroke cycle, ...

The characteristics of the SST data will depend on how the measurements were made. Most of the SST measurements in the period 1970 to 1997 were made using either a bucket and thermometer or by reporting the temperature of the engine intake cooling water. A smaller number of reports were made using hull sensors which are thought to be more accurate. ICOADS contains a metadata flag giving the met...

This study investigates the effects of ethanol-blended gasoline with oxygenated additives on a multi – cylinder Spark Ignition (SI) Engine. The experiments were conducted in two stages. In stage I, the test fuels were prepared using 99.9% pure ethanol and gasoline with a cycloheptanol blend, in the ratio of E69.5 + 0.5 cycloheptanol, E64.6 + 0.4 cycloheptanol, E59.7 + 0.3 cycloheptanol, E49.8 +...