| Autor: |
Mitsuaki OHTOMO, Tetsunori SUZUOKI, Seiji YAMAMOTO, Hiroshi MIYAGAWA |
| Jazyk: |
japonština |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
Nihon Kikai Gakkai ronbunshu, Vol 83, Iss 850, Pp 17-00044-17-00044 (2017) |
| Druh dokumentu: |
article |
| ISSN: |
2187-9761 |
| DOI: |
10.1299/transjsme.17-00044 |
| Popis: |
This paper studies the condition of reducing knock intensity which is the pressure oscillation initiated by auto-ignition of the end gas. The knock intensity is thought to be decreased by suppressing the reaction rate of auto-ignition. In this study, the effect of the mixture dilution which decreases the reaction rate on the knock intensity was investigated by using a spark ignition engine. In the case of low dilution, knock was observed when the auto-ignition of the end gas occurred. When the dilution ratio was over 30%, there was the condition that the knock did not occur even if the end gas auto-ignited. The combustion with low knock intensity was observed in either case that dilution gas was inert gas or air. The knock intensity was shown as a function of the maximum temperature and the maximum pressure which affected the reaction rate although the knock intensity was affected by the composition of the mixture, load, ignition timing, auto-ignition timing of the end gas and heat release quantity of the auto-ignited mixture. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
