Patent ID: 11867142
Assignee: TRANSPORTATION IP HOLDINGS, LLC
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 15:
16. A method comprising:
controlling, via one or more processors, a first fuel injector assembly and a second fuel delivery system to provide a first target fuel composition to a cylinder of an engine during a first time period of engine operation; and
controlling the first fuel injector assembly and the second fuel delivery system to provide a second target fuel composition to the cylinder during a second time period of engine operation, the second target fuel composition being different from the first target fuel composition,
the first fuel injector assembly comprising a first nozzle, a first needle, and a first actuator, the first nozzle comprising a first cavity that houses the first needle, the second fuel delivery system comprising a second nozzle, a second needle, and a second actuator, the second nozzle comprising a second cavity that houses the second needle,
wherein the controlling to provide the first target fuel composition during the first time period comprises moving, via the first actuator, the first needle within the first cavity from a closed position to a first fuel delivery position to deliver a first, non-zero amount of a first type of fuel to the cylinder, and positioning, via the second actuator, the second needle at a first position within the second cavity, and
the controlling to provide the second target fuel composition during the second time period comprises moving, via the first actuator, the first needle within the first cavity to a second fuel delivery position to deliver a second, non-zero amount of the first type of fuel to the cylinder, and moving, via the second actuator, the second needle within the second cavity from the first position to a second position to deliver a non-zero amount of a second type of fuel to the cylinder, such that the second target fuel composition includes both the first and second types of fuel.