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- Title
Numerical and Experimental Study on Knock Sources in Spark Ignition Engine with Electromagnetic Valve Train.
- Authors
Xu, Jiangtao; Feng, Yong; Chang, Siqin; Guo, Tongjun
- Abstract
As one of the most common engine types in nowadays, the thermal efficiency of spark-Ignition (SI) engine is limited due to the lower compression ratio. Various technical solutions have been proposed to suppress knock and improve compression ratio of SI engines. In this paper, an new technical solution based on electromagnetic valve train (EMVT) was proposed to suppress knock of spark ignition engines, so that high compression ratio (HCR) engine (13:5) was obtained. Moreover, experimental and numerical analyses were carried out to optimize the proposed EMVT strategy. The result showed that the proposed EMVT strategies could well suppress the engine knock by reducing end-gas temperature and pressure and improving the spark-flame rate, resulting in significantly enhanced power, economic, and emission characteristics of SI engines. This study provides theoretical basis and technical approach for the development of internal combustion engines with high efficiency and high compression ratio.
- Subjects
SPARK ignition engines; INTERNAL combustion engines; THERMAL efficiency; VALVES; KNOCK in automobile engines; EXHAUST gas recirculation
- Publication
International Journal of Automotive Technology, 2020, Vol 21, Issue 6, p1369
- ISSN
1229-9138
- Publication type
Article
- DOI
10.1007/s12239-020-0129-1