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

2009-32-0021

11/03/2009

Event
Small Engine Technology Conference & Exposition
Authors Abstract
Content
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.
Meta TagsDetails
DOI
https://doi.org/10.4271/2009-32-0021
Pages
7
Citation
Wijesinghe, J., and Hong, G., "Effect of spark assistance on improving cyclic stability of auto-ignition at light load in a small two-stroke engine," SAE Technical Paper 2009-32-0021, 2009, https://doi.org/10.4271/2009-32-0021.
Additional Details
Publisher
Published
Nov 3, 2009
Product Code
2009-32-0021
Content Type
Technical Paper
Language
English