Control of Emissions from Marine SI and Small SI Engines, Vessels, and Equipment: Final Regulatory Impact Analysis (EPA420-R-08-014)

Control of Emissions from Marine SI and Small SI Engines, Vessels, and Equipment: Draft Regulatory Impact Analysis (EPA420-D-07-004)

Ion Current Simulation During the Post Flame Period in SI Engines

The application of ion current signals is one of the most recent approaches in engine management systems. By applying a small constant DC voltage across the electrodes of the spark plug and measuring the current through the electrode gap, the state of gas may be measured and investigated. In this paper a computer code is developed in order to analyze the state of gas during the combustion p...

Summary and Analysis of Comments: Control of Emissions from Nonroad Diesel Engines, EPA420-R-04-008

Exhaust Emission Effects of Fuel Sulfur and Oxygen on Gasoline Nonroad Engines (EPA420-R-05-016)

NOTICE This technical report does not necessarily represent fi nal EPA decisions or positions. It is intended to present technical analysis of issues using data that are currently available. The purpose in the release of such reports is to facilitate the exchange of technical information and to inform the public of technical developments which may form the basis for a fi nal EPA decision, posit...

Investigation of the Effect of Exhaust Gas Recirculation (EGR) on pollutants Emission From Si Engine Exhaust Gasese (RESEARCH NOTES)

This paper reports the results of an experimental investigation on the effect of the EGR on the pollutants emission, especially on oxides of nitrogen, from the exhaust gases and performance of the spark ignition engine. Also along with experimental work, a mathematical model for the determination of the effect of EGR on the peak cycle temperature and for the prediction of its effect on the NOx ...