Patent ID: 6988492

Claim:
A fuel injection system for controlling fuel injection into combustion chambers of a multi-cylinder combustion engine, comprising: a gaseous fuel supply for supplying gaseous fuel at a supply pressure level; a common gaseous fuel rail in fluid communication with said gaseous fuel supply and containing said gaseous fuel at a common gaseous rail pressure; an adapter manifold having at least one gaseous fuel nozzle in fluid communication with a combustion chamber, said adapter manifold constructed and arranged to cooperate with a fuel injector cavity; a valve means for controlling the flow of said gaseous fuel, said valve means in fluid communication with said common gaseous fuel rail and said adapter manifold; an electric control module in communication with said valve means, said control module constructed and arranged for operative control of said valve means; wherein said fuel injection system is operable to inject said gaseous fuel at said common rail pressure through said gaseous fuel nozzle into a combustion chamber; the fuel injection system including a flame-arrester for arresting a flame in said gaseous fuel rail, said flame arrester in fluid communication with said gaseous fuel rail and said gaseous fuel supply.