摘要 |
A mixture compressing external auto-ignited four-stroke cycle internal combustion engine, with charge stratification, has the largest portion of the fuel charge supplied to the main combustion chamber as a lean fuel mixture through at least one inlet valve. The remaining portion of the charge is supplied to an auxiliary combustion chamber as a rich fuel mixture through at least one additional mixture inlet. Also provided is an ignition chamber and an auxiliary combustion chamber connected thereto through at least one opening. The opening is small compared to the size of the ignition chamber in which a sparkplug is arranged. The volume of the ignition chamber is dimensioned in relation to the volume of the auxiliary combustion chamber so that during ignition of the rich fuel mixture a stable flame zone is formed.
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