A dual fuel common rail system (10) includes first and second common rails (16) fluidly connected to a fuel injector (12) by a co-axial quill assembly (18). Distillate diesel fuel at a first pressure moves from the first common rail (14) through a first fu...

The invention relates to a duel-fuel system for a combustion engine comprising at least one first injector (7) for feeding a first fuel to the engine and at least one second injector (8) for feeding a second fuel to the engine, said first and second inject...

In dual fuel engines, it is desirable to have injection of two distinct quantities of liquid fuel. Engines with these operating requirements have typically used two separate fuel injectors, or two separate nozzle assemblies, to satisfy this need. However, ...