A FUEL INJECTION SYSTEM, FOR A GAS-DIESEL DUAL FUEL ENGINE, AN ENGINE ASSEMBLY, A VEHICLE AND METHODS OF PROVIDING FUEL TO THE ENGINE.

摘要

A fuel injection system, for a gas-diesel dual fuel engine, an engine assembly, a vehicle and methods of providing fuel to the engine. A fuel injection system (1), for a gas-diesel dual fuel engine (100), comprising a gaseous fuel supply (3), a diesel fuel supply (5) comprising a diesel pump (6), and an injector (7) for performing injections of the thereto supplied fuels into a combustion chamber (101) of the engine. The injector comprises an internal receiving volume with a gaseous fuel inlet (11) fluidly connected to the gaseous fuel supply, and a diesel fuel inlet (13) fluidly connected to the diesel fuel supply. The system is arranged for providing fuel to the engine in any one of a dual fuel mode in which, for a combustion cycle of the engine, a pilot combustion amount of diesel and a gaseous fuel are supplied to the combustion chamber of the engine via the injector, and a diesel-only mode in which, for a combustion cycle of the engine, diesel fuel is the only fuel supplied to the combustion chamber of the engine via the injector.