Patent ID: 11933244
Assignee: CATERPILLAR INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 2:
3. A non-transitory computer-readable storage medium having stored thereon instructions that, when executed by one or more processors, causes the one or more processors to perform a method for injecting fuel comprising:
controlling a fuel injector to inject one or more distinct pilot injections, into a combustion chamber of an internal combustion engine through at least one duct inside the combustion chamber of the internal combustion engine, in a predetermined range before top dead center (BTDC) for a combustion cycle; and
controlling the fuel injector to inject a main injection into the combustion chamber through the at least one duct for the combustion cycle,
wherein a first amount of the fuel injected for the main injection is greater than a second amount of fuel injected for said controlling the fuel injector to inject the one or more distinct pilot injections,
wherein the predetermined range before top dead center (BTDC) of the one or more distinct pilot injections is from 85 to 40 degrees BTDC,
wherein said controlling the fuel injector to inject the main injection is such that the main injection begins before top dead center (TDC) and ends after top dead center (TDC),
wherein said outputting the main injection is such that the main injection begins before top dead center (TDC) and ends after top dead center (TDC), and
wherein said controlling the fuel injector to inject the one or more distinct pilot injections is performed in association with a temperature of the combustion chamber being at or achieving 500 K to 750 K.