Patent ID: 11891961
Assignee: CATERPILLAR INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 16:
17. A fuel system for a gaseous fuel engine system comprising:
a fueling control unit structured to:
monitor at least one engine system parameter upon the basis of which a blowby amount of a gaseous fuel from a cylinder to a crankcase in a gaseous fuel engine varies;
control, via fueling control commands to at least one of a first fuel admission valve at a first fuel delivery location relative to the cylinder and a second fuel admission valve at a second fuel delivery location relative to the cylinder, at least one of a delivery location or a delivery timing of gaseous fuel to the cylinder, based on the monitored at least one engine system parameter; and
limit the blowby amount of the gaseous fuel that blows by a piston in the cylinder based on the controlling at least one of a delivery location or a delivery timing of the gaseous fuel so as to limit crankcase accumulation of the gaseous fuel.