Passive prechamber fueling device and method

An engine, comprising:

• a plurality of pistons configured to be actuated by combustion reactions within the engine;
• a plurality of cylinders, each cylinder being configured to house a corresponding piston of the plurality of pistons;
• a plurality of combustion chambers, each combustion chamber being configured to form a containment boundary for a corresponding combustion reaction of the combustion reactions;
• a plurality of intake lines collectively forming an intake manifold, each intake line being fluidly connected with a corresponding combustion chamber of the plurality of combustion chambers to provide an air-fuel mixture to the corresponding combustion chamber;
• at least one port fuel injector configured to inject fuel into the plurality of intake lines to form the air-fuel mixture;
• a plurality of first spark plugs, each first spark plug being housed within the corresponding combustion chamber and configured to ignite the air-fuel mixture in the corresponding combustion chamber to initiate the combustion reactions;
• a plurality of second spark plugs, each second spark plug being housed within the corresponding combustion chamber and configured to ignite the air-fuel mixture in the corresponding combustion chamber to initiate the combustion reactions;
• a plurality of prechambers, each prechamber being configured to house a corresponding second spark plug of the plurality of spark plugs to concentrate the air-fuel mixture in close proximity to the spark plug for ignition;
• and
• a plurality of exhaust lines forming an exhaust manifold, each exhaust line being configured to be in fluid communication with the corresponding combustion chamber of the plurality of combustion chambers to provide a path for an exhaust gas formed by combustion of the air-fuel mixture to exit the corresponding combustion chamber.

A method, comprising:

• housing a plurality of pistons in a plurality of cylinders, where each cylinder houses a corresponding piston of the plurality of pistons;
• housing a plurality of combustion chambers in the plurality of cylinders, where each combustion chamber forms a containment boundary for a corresponding combustion reaction;
• supplying air to a plurality of intake lines collectively forming an intake manifold, each intake line being fluidly connected with a corresponding combustion chamber of the plurality of combustion chambers;
• injecting fuel into the plurality of intake lines with at least one port fuel injector, where the fuel mixes with the air to form an air-fuel mixture;
• directing the air-fuel mixture into a plurality of prechambers housing a plurality of first spark plugs;
• combusting the air-fuel mixture with the plurality of first spark plugs housed within the corresponding combustion chamber;
• combusting the air-fuel mixture in the plurality of prechambers with a plurality of second spark plugs housed within the corresponding combustion chamber, producing an exhaust gas;
• and
• releasing the exhaust gas through a plurality of exhaust lines forming an exhaust manifold in fluid communication with the corresponding combustion chamber of the plurality of combustion chambers.