Patent ID: 11891962
Assignee: CATERPILLAR INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 10:
11. A gaseous fuel engine system comprising:
a gaseous fuel engine having a cylinder formed therein;
a conduit structured to convey a gaseous fuel blend containing a gaseous hydrogen fuel (H2) to the cylinder;
a fuel system including a fuel admission valve, and a fueling control unit structured to:
output a control command to the fuel admission valve to deliver additional H2 supplementing the H2 in the gaseous fuel blend;
determine the control command to form within the cylinder a combustion charge of the gaseous fuel blend, the additional H2, and air, having a relative amount of H2 that is based on a performance target of an engine operating parameter that varies on the basis of a relative amount of H2 combusted in the cylinder;
compensate, relative to the performance target, for a varied H2 concentration in the gaseous fuel blend by way of the additional H2; and
operate the gaseous fuel engine in satisfaction of the performance target.