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A Study of Ignition System Effects on Power, Emissions, Lean Misfire Limit, and EGR Tolerance of a Single-Cylinder Engine-Multiple Spark versus Conventional Single Spark Ignition
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Abstract
The characteristics of multiple spark ignition systems with respect to engine performance, emissions, lean misfire, and tolerance to exhaust gas recirculation (EGR) have been investigated using a carbureted single-cylinder engine. The results, which were compared to those obtained with a standard single spark ignition system, show that both lean misfire limit and EGR tolerance are extended with the multiple spark system. The amount of extension varies with engine load, being largest at the lighter loads studied. Engine power and emissions at non-misfiring conditions are the same with both ignition systems.
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Citation
Harrington, J., Shishu, R., and Asik, J., "A Study of Ignition System Effects on Power, Emissions, Lean Misfire Limit, and EGR Tolerance of a Single-Cylinder Engine-Multiple Spark versus Conventional Single Spark Ignition," SAE Technical Paper 740188, 1974, https://doi.org/10.4271/740188.Also In
References
- Harrington J. A. Shishu R. C. “A Single-Cylinder Engine Study of the Effects of Fuel Type, Fuel Stoichiometry, and Hydrogen-to-Carbon Ratio on CO, NO, and HC Exhaust Emissions.” Paper 730476 SAE Automobile Engineering Meeting Detroit May 1973
- Warner R. S. “Multiple Discharge-A More Effective Ignition.” ASME Publication No. 70-DGP-l1
- Tanuma T. Sasaki K. Kaneko T. Kawasaki H. “Ignition Combustion, and Exhaust Emissions of Lean Mixtures in Automotive Spark Ignition Engines.” SAE Transactions 80 1971 paper 710159