Patent ID: 11970965
Assignee: INNIO JENBACHER GMBH & CO OG
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 0:
1. An internal combustion engine having:
at least one cylinder head;
an intake manifold;
a plurality of piston-cylinder-units each having a piston movably arranged in a cylinder;
a plurality of main combustion chambers;
a plurality of intake ports, wherein each intake port of the plurality of intake ports is connected to one of the plurality of main combustion chambers and to the intake manifold;
a plurality of prechambers, wherein each prechamber of the plurality of prechambers is connected to one of the plurality of main combustion chambers and is provided with a prechamber gas valve and an ignition device;
an electronic control unit configured to provide the prechamber gas valves with a mixture of fuel gas and air;
wherein each prechamber of the plurality of prechambers has a plurality of sub-chambers, comprising:
a first sub-chamber having the prechamber gas valve and the ignition device;
a second sub-chamber connected to the main combustion chamber by a plurality of first orifices; and
at least one third sub-chamber, wherein the second sub-chamber is connected to the first sub-chamber indirectly by the at least one third sub-chamber, wherein the at leach one third sub-chamber is connected to the first sub-chamber by at least one third orifice, and the at least one third sub-chamber is connected to the second sub-chamber by at least one second orifice;
wherein following a fluid passage from the first pre-chamber to the main combustion chamber to which the prechamber is connected, each sub-chamber of the plurality of sub-chambers has a smaller volume than a next sub-chamber of the plurality of sub-chambers.