Fuel system for reducing fuel targeting errors and engine operating method

A method of operating an engine comprising:

• injecting a first charge of liquid fuel into a cylinder in the engine using a first set of nozzle outlets in a fuel injector, such that spray jets of the first charge of liquid fuel have orientations that are based at least in part on a first spray angle of the first set of nozzle outlets;
• autoigniting the first charge of liquid fuel in a first engine cycle;
• delivering a charge of gaseous fuel into the cylinder in the second engine cycle;
• injecting a second charge of liquid fuel into the cylinder using a second set of nozzle outlets in the fuel injector, such that spray jets of the second charge of liquid fuel have orientations that are based on a second spray angle of the second set of nozzle outlets that is different from the first spray angle;
• autoigniting the second charge of liquid fuel in a second engine cycle including pilot igniting the charge of gaseous fuel by way of the autoignition of the second charge of liquid fuel;
• transitioning the engine from a first speed, load, and boost combination in the first engine cycle to a second speed, load, and boost combination in the second engine cycle;
• and
• limiting errors in targeting of the second charge of liquid fuel that are caused by the transitioning of the engine at least in part by varying an injection pressure of the liquid fuel from the first engine cycle to the second engine cycle.