| 摘要 |
The invention relates to a fuel supply system and particularly provides a common-rail fuel supply system applied to the internal combustion engine of a marine diesel engine, which comprises a low-pressure area. The low-pressure area is provided with a pumping device for pumping the fuel from the low-pressure area to a high-pressure area. Inside the high-pressure area between the pumping device and an ejector applied to a cylinder, an accumulation system is permanently arranged. The accumulation system comprises an accumulation unit coupled through a high-pressure pipeline. The accumulation system is connected with the pumping device through at least one high-pressure pipeline permanently arranged in a high-pressure condition. The accumulation system is connected with the ejector through an ejection loop by means of a high-pressure pipeline occasionally arranged in a high-pressure condition. A pressure limiting valve and a purge valve are interacted with one accumulation unit of the accumulation system. Meanwhile, the accumulation unit, in interaction with the pressure limiting valve and the purge valve, is provided with a valve block. The valve block directly acts on the accumulation unit and is used for accommodating the pressure limiting valve and the purge valve. |
