GASEOUS FUEL ENGINE AND METHOD OF OPERATING

摘要

An engine includes one or more cylinders configured to receive gaseous fuel for use in combustion. Two gaseous fuel injectors per cylinder, include: a first injector directed at the corresponding cylinder and having an injection capacity of a first amount of gaseous fuel per injection, and a second injector directed at the corresponding cylinder and having an injection capacity of a second amount of gaseous fuel per injection, the second amount being greater than the first amount. The engine is operable in a first mode in which a per-cylinder fuel demand is at or below the first amount, and only the first injector is operable for each cylinder. The engine is operable in a second mode in which the per-cylinder fuel demand is greater than the first amount, and only the second injector is operable for each cylinder.

主权项

1. An engine comprising:
one or more cylinders, each cylinder being configured to receive gaseous fuel for use in combustion; and two gaseous fuel injectors per cylinder, including: a first injector directed at the corresponding cylinder and having an injection capacity of a first amount of gaseous fuel per injection, and a second injector directed at the corresponding cylinder and having an injection capacity of a second amount of gaseous fuel per injection, the second amount being greater than the first amount, wherein the engine is operable in a first mode in which a fuel demand is at or below the first amount, and only the first injector is operable for each cylinder, and wherein the engine is operable in a second mode in which the fuel demand is greater than the first amount, and only the second injector is operable for each cylinder.