Gaseous fuel engine and operating strategy forming gaseous fuel charge from multiple injections

A method of operating an engine comprising:

• moving an intake valve in an engine from a closed position to an open position to fluidly connect a cylinder in the engine to an intake conduit feeding pressurized intake air;
• injecting a gaseous fuel into the intake conduit in a first injection from a first injector;
• injecting a gaseous fuel into the intake conduit in a second injection from a second injector;
• admitting the gaseous fuel of the first injection and the gaseous fuel of the second injection from the intake conduit into the cylinder;
• forming a gaseous fuel charge of the admitted gaseous fuel in the cylinder between an intake valve opening timing and an intake valve closing timing;
• and
• combusting the gaseous fuel charge in the cylinder.

A cylinder head assembly for a gaseous fuel engine comprising:

• a cylinder head forming a plurality of exhaust conduits, a plurality of intake conduits, and a common air admission cavity arranged to feed pressurized air to the plurality of intake conduits;
• at least one of the plurality of intake conduits including a divided intake conduit forming a first intake port and a second intake port together arranged to feed the pressurized air to one of a plurality of cylinders in a gaseous fuel engine;
• a first intake valve and a second intake valve supported in the cylinder head and arranged to open and close, respectively, the first intake port and the second intake port;
• and
• a first injector and a second injector supported in the cylinder head and arranged to inject a gaseous fuel into the first intake port and the second intake port, respectively.