| 摘要 |
A fuel injection system (1) for supplying pressurised fuel, in particular dimethyl ether (DME) or a blend thereof, to an internal combustion engine, said fuel injection system comprising a low-pressure hydraulic circuit (2), a fuel pump (3) with a pumping element (4) and an outlet valve (5) for supply of pressurised fuel to a common rail (7), and an injector (9) for delivering fuel for combustion from the common rail to the engine, wherein said fuel injection system further comprises an isolating valve (8) connected between outlet valve (5) of the fuel pump (3) and the common rail (7), wherein said isolating valve is adapted such that the frequency of its seats making the mechanical contact with each other is lower compared to the frequency of the operation of the outlet valve (5) of said fuel pump (3). |
