TURBULENT JET IGNITION PRE-CHAMBER COMBUSTION SYSTEM FOR SPARK IGNITION ENGINES

摘要

An ignition system for an internal combustion engine having at least one combustion chamber where the ignition system includes a housing, an ignition device, an injector, and a pre-chamber having a nozzle disposed spaced from the proximal portion of the pre-chamber. The igniter portion of the ignition device and the nozzle of the injector are operatively supported in the proximal portion of the pre-chamber and disposed flush therewith. The igniter portion ignites the fuel in pre-chamber such that partially combusted pre-chamber products are forced through orifices in the pre-chamber nozzle and extinguish, but dispersed through the combustion chamber so as to ignite the main fuel charge therein.

主权项

1. An ignition system for an internal combustion engine having at least one combustion chamber, said ignition system comprising:
a housing defined in the cylinder head of the internal combustion engine, said housing defining a pre-chamber; an ignition device supported in said housing and having an igniter portion that substantially faces said pre-chamber; an injector supported in said housing and having a nozzle that substantially faces said pre-chamber; said pre-chamber defining a proximal portion and a pre-chamber nozzle disposed spaced from said proximal portion of said pre-chamber, said pre-chamber nozzle including a plurality of orifices having a diameter in a range between 0.7 mm to 2.0 mm and disposed spaced from one another and providing fluid communication between said pre-chamber and the combustion chamber; said igniter portion of said ignition device and said nozzle of said injector operatively supported in the proximal portion of the pre-chamber such that said injector delivers a predetermined quantity of fuel into said pre-chamber, said igniter portion ignites the fuel in said pre-chamber such that the ignited fuel is forced through said orifices of said pre-chamber nozzle and extinguished, but dispersed through the combustion chamber so as to ignite the main fuel charge therein.