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

Claim 9:
10. The TJCCI engine system of claim 9, wherein when the engine operates in the first and second engine operating map regions, 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 beginning of the intake stroke; and
actuate a second of the one or more fuel injectors positioned in the main chamber after the gas exchange top dead center piston position; and

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