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

Claim 0:
1. A method of operating a gaseous fuel engine system comprising:
monitoring at least one engine system parameter upon the basis of which a blowby amount of a gaseous fuel to a crankcase in a gaseous fuel engine varies;
conveying the gaseous fuel into a cylinder in the gaseous fuel engine for combustion;
controlling at least one of a delivery location, a delivery timing, or in situ mixing of the gaseous fuel with air, based on the monitored at least one engine system parameter; and
limiting the blowby amount of the gaseous fuel that blows by a piston in the gaseous fuel engine based on the controlling at least one of a delivery location, a delivery timing, or in situ mixing of the gaseous fuel with air, such that crankcase accumulation of the gaseous fuel is maintained below a flammability limit.