Internal combustion engine having an auxiliary combustion chamber and a method of control of combustion in said internal combustion engine

摘要

An internal combustion engine having an auxiliary combustion chamber connected to a main combustion chamber via multiple connecting holes is disclosed. The auxiliary combustion chamber has a drum shape. A first one of the connecting holes opens into the auxiliary combustion chamber in a direction tangential to the cylindrical circumferential wall of the drum shaped auxiliary combustion chamber for creating a swirl in the auxiliary combustion chamber at the compression stroke. An open end of the first hole on the main combustion chamber side is directed to the intake valve for scavenging the auxiliary combustion chamber at the intake stroke.