Patent ID: 8327827

Claim:
An internal combustion engine, comprising: an engine casing; at least one combustion chamber disposed in the engine casing; at least one fuel injector assembly mounted to the engine casing and fluidly communicating with the at least one combustion chamber for supplying fuel thereto, each of the at least one fuel injector assembly having: a fuel injector housing; a fuel injector disposed at least in part in the fuel injector housing; at least one fuel supply inlet fluidly communicating with the fuel injector for supplying fuel to the fuel injector; and at least one fuel return outlet fluidly communicating with the fuel injector for returning excess fuel from the fuel injector; a fuel supply assembly housing fastened to the fuel injector housing of the at least one fuel injector; a fuel supply assembly fluidly communicating with the at least one fuel injector assembly for supplying fuel to the fuel injector assembly, the fuel supply assembly comprising: a fuel pump assembly disposed at least in part in the fuel supply assembly housing; a vapor separator assembly disposed at least in part in the fuel supply assembly housing; at least one fuel supply outlet being fluidly connected to the at least one fuel supply inlet of the at least one fuel injector assembly via at least one first cooperative fit for supplying fuel from the fuel supply assembly to the at least one fuel injector assembly; and at least one fuel return inlet being fluidly connected to the at least one fuel return outlet of the at least one fuel injector assembly via at least one second cooperative fit for returning fuel from the at least one fuel injector assembly to the fuel supply assembly.