Patent ID: 11959435
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 11:
12. The TJCCI system of claim 9, wherein when the engine operates in the fourth engine operating map region, the computer system is further configured to:
during the exhaust stroke of the engine:
actuate a first of the one or more fuel injectors in a port of the engine positioned proximate the main chamber; and
actuate the exhaust valve;

during the intake stroke of the engine:
actuate the intake valve at a middle of the intake stroke; and
actuate a second of the one or more fuel injectors positioned in the main chamber at the middle of the intake stroke; and

during the compression stroke of the engine:
actuate the spark plug connected to the prechamber immediately prior to the firing top dead center piston position.