Ignitability and Combustion Characteristics of the Multi Spark Capacitor Discharge Ignitor for a Lean Burn Engine 952396

In order to realize lean burn engine by improving the ignitability of ignition system, the possibility about the adaptability of the Multi Spark Capacitor Discharge Igniter (MSCDI) was analyzed. The MSCDI had an effect on the increase of the ignition energy and discharge period, and it was excellent in high speed without noise. The result of engine test with the MSCDI shown about 10% extension of lean limit, and 5% increase of brake thermal efficiency than the ignition system with single spark ignition apparatus. And the coefficient of cycle variation in the IMEP was remarkably decreased.


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