Internal combustion engine and a method for operating such an internal combustion

A method for operating an internal combustion engine comprising a pre-chamber having a pre-chamber intake system and a main combustion chamber having a main combustion chamber intake system, wherein by use of the pre-chamber intake system and the main combustion chamber intake system a predetermined amount of energy of fuel can be supplied to the main combustion chamber for a combustion, wherein, via control by a control unit:

• in a first operation mode a majority of fuel energy amount for the combustion in the main combustion chamber is supplied directly to the main combustion chamber by use of the main combustion chamber intake system, and
• in a second operation mode, wherein the majority of fuel energy amount for the combustion in the main combustion chamber is supplied via the pre-chamber to the main combustion chamber by use of the pre-chamber intake system.

A system, comprising:

• a control unit configured to control a pre-chamber intake system coupled to a pre-chamber and a main combustion chamber intake system coupled to a main combustion chamber of an internal combustion engine, according to the following operation modes:
• a first operation mode, in which a majority of a fuel energy amount for the combustion in the main combustion chamber is supplied directly to the main combustion chamber by use of the main combustion chamber intake system, and
• a second operation mode, in which a majority of the fuel energy amount for the combustion in the main combustion chamber is supplied via the pre-chamber to the main combustion chamber by use of the pre-chamber intake system.