FIELD: engines and pumps.
SUBSTANCE: invention relates to a method of operating an internal combustion engine with autoignition, in particular for vehicles in which a self-igniting liquid fuel is supplied in a mode of operation on one type of fuel, and liquid fuel as an igniter in the mode of operation on two types of fuel, and also a gaseous or liquid alternative fuel, the internal combustion engine operating in two types of fuel operating at a ratio of the recirculation rate in addition to this, the air supply in the intake system is throttled such that an excess air ratio of more than 1 to a maximum of 1.3, preferably from more than 1 to a maximum of 1.2, is set in the exhaust gases, most preferably from 1.03 to 1.1.
EFFECT: achievement of small exhaust emission limits in the operation mode of an internal combustion engine on two types of fuel.
15 cl, 1 dwg
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