Patent ID: 11952954
Assignee: CLEARFLAME ENGINES, INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 0:
1. A method of operating a compression ignition engine, the method comprising:
drawing a volume of air into a combustion chamber, the volume of air having a temperature between about 80° C. and about 150° C. while being drawn into the combustion chamber;
moving a piston from a bottom-dead-center (BDC) position to a top-dead-center (TDC) position in the combustion chamber at a compression ratio of at least about 15:1;
injecting a volume of a fuel into the combustion chamber at an engine crank angle, the fuel having a cetane number less than about 40;
igniting the volume of the fuel in the combustion chamber; and
combusting the volume of the fuel in the combustion chamber,
wherein a delay between initiation of injection of the volume of the fuel into the combustion chamber and initiation of combustion is less than about 1 ms, and
wherein the engine crank angle is greater than about 330 degrees by a sufficient margin such that no more than about 50% of the volume of the fuel is pre-mixed with the volume of air upon initiation of combustion.