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

Claim 11:
12. An engine assembly comprising:
a cylinder of an engine;
an intake assembly operably coupled to the cylinder;
a first fuel injector assembly configured to deliver a first type of fuel directly to the cylinder, the first fuel injector assembly comprising:
a nozzle comprising a cavity in fluid communication with nozzle openings, each of the nozzle openings extending through a wall of the nozzle from the cavity to an exterior surface of the nozzle that is within the cylinder, the nozzle openings comprising a first set of the nozzle openings and a second set of the nozzle openings;
a needle movably disposed within the cavity, the needle preventing flow of the first type of fuel from the cavity through any of the nozzle openings in a closed position of the first fuel injector assembly; and
an actuator that moves the needle within the cavity between the closed position, a first fuel delivery position within the cavity, and a second fuel delivery position within the cavity, wherein the actuator moves the needle from the closed position to the first fuel delivery position to emit a first, non-zero amount of the first type of fuel from the cavity through the first set of nozzle openings while blocking the second set of nozzle openings, and the actuator moves the needle to the second fuel delivery position to emit a second, non-zero amount of the first type of fuel from the cavity through both the first and second sets of nozzle openings; and

a second fuel delivery system configured to deliver a second type of fuel to the intake assembly.