Patent ID: 11933257
Assignee: CATERPILLAR INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 12:
13. A fuel injection method, comprising:
receiving fuel with a fuel injector for an internal combustion engine;
pressurizing the fuel for injection into the internal combustion engine via an injection member assembly;
actuating a lift control valve between a first position associated with a first lift in which the injection member assembly has a first length and a first maximum amount of travel and a second position associated with a second lift in which the injection member assembly has a second length and a second maximum amount of travel, the second maximum amount of travel being reduced as compared to the first maximum amount of travel, the lift control valve blocking a fluid path to a hydraulic fluid chamber of the injection member assembly; and
injecting the pressurized fuel with an injection rate that is controlled according to the second lift while the lift control valve is in the second position.