Premature Flame Initiation in a Turbocharged DISI Engine - Numerical and Experimental Investigations

被引：44

作者：

Palaveev, Stefan ^{[1
]}

Magar, Max

Kubach, Heiko ^{[1
]}

Schiessl, Robert

Spicher, Ulrich ^{[1
]}

Maas, Ulrich ^{[1
]}

机构：

[1] Karlsruhe Inst Technol, Inst Kolbenmaschinen, Kaiserstr 12, D-76131 Karlsruhe, Germany

来源：

SAE INTERNATIONAL JOURNAL OF ENGINES | 2013年 / 6卷 / 01期

关键词：

Compendex;

D O I：

10.4271/2013-01-0252

中图分类号：

U [交通运输];

学科分类号：

08 ; 0823 ;

摘要：

This paper presents the results of experimental and numerical investigations on pre-ignition in a series-production turbocharged DISI engine. Previous studies led to the conclusion that pre-ignition can be triggered by auto-ignition of oil droplets generated in the combustion chamber. Analysis of more recent experiments shows that a modification of the engine operation parameters that promotes spray/lubricant interaction also increases pre-ignition frequency, while modifications that enhance the speed of chemical reactions (thereby favoring auto-ignition) have little or no influence. The experimental and numerical findings can be explained if we assume the existence of a substance (originating from lubricant/fuel interaction) that displays extremely short ignition delay times.

引用

页码：54 / 66

页数：13

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