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Characteristics of Two-Phase Premixed Charge Compression Ignition Combustion With a Divided Chamber
Published September 17, 2003 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Autumn Conference
Characteristics of rich and lean two-phase premixed charge compression ignition combustion was investigated in a divided chamber engine with induced natural gas as the main fuel and with a small quantity of early injected diesel fuel as the ignition source. The engine was converted from an IDI diesel engine with the compression ratio reduced to 12.1 by expansion of the main chamber volume. Knock-free, low NOx and smokeless combustion was realized by an appropriate separation of rich and lean mixtures between the main and subcombustion chambers. Load control was achieved by metering the natural gas fraction in the overall energy input.