The Effect of Fuel Compounds on Pre-ignition under High Temperature and High Pressure Condition

Nozomi Sasaki; Koichi Nakata; Katsunori Kawatake; Shunta Sagawa; Manabu Watanabe; Tadahide Sone

doi:10.4271/2011-01-1984

Turbocharged (TC) engines have been introduced these days to improve the fuel economy. It is considered that one possible issue of the TC engine is a pre-ignition at high engine speed because of high temperature and high pressure in the combustion chamber.

This study shows the effect of fuel compounds on pre-ignition at 4400rpm. The experimental engine is a naturally-aspirated (NA) engine which is customized to imitate the cylinder temperature and pressure of TC engines.

It is known that research octane number (RON) describes anti-knock quality well. Meanwhile the results show that pre-ignition characteristic at high engine speed is dominated by motor octane number (MON) and auto-ignition temperature (AIT) rather than RON.

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The Effect of Fuel Compounds on Pre-ignition under High Temperature and High Pressure Condition 2011-01-1984

SAE MOBILUS