Patent ID: 11939905
Assignee: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 17:
18. The apparatus of claim 11, further comprising:
an engine cylinder head;
camshafts;
the cartridge being removably mounted in a valley of the engine cylinder head between the camshafts which are rotatable about parallel axes, the axes being substantially perpendicular to the longitudinal centerline of the pre-chamber;
an emission of a first amount of the fuel by the fuel injector for use in the main chamber is of a greater period of time than for an emission of a last amount of the fuel by the fuel injector for use to enrichen the pre-chamber; and
a fuel and air mixture within the pre-chamber is fuel-rich.