Effect of spark assistance on improving cyclic stability of auto-ignition at light load in a small two-stroke engine

Publication Type:
Conference Proceeding
Citation:
SAE Technical Papers, 2009
Issue Date:
2009-12-01
Metrics:
Full metadata record
Files in This Item:
Filename Description Size
Thumbnail2009003101.pdf620.33 kB
Adobe PDF
Cyclic instability is a common problem in the operation of conventional two-stroke spark-ignition engines. Previous research has shown that auto-ignition (AI) could help solve this problem. However, at light engine loads, even under AI, the cyclic instability may still be significant due to the difficulty in maintaining the minimum temperature required by AI. Despite the benefits brought by AI in fuel consumption and emission reduction, the high level of cycle-to-cycle variation at light load may delay the realization of AI operation in engine products. To solve this problem, spark assistance has been identified as a cost effective and convenient way to improve the stability of AI operation at light load. This paper aims to report our experimental investigation to the effectiveness of spark assistance on cyclic variation of AI at light engine load conditions. Copyright © 2009 SAE International.
Please use this identifier to cite or link to this item: