High-pressure ejection system for fuel internal combustion engine

The invention relates to a high-pressure ejection system for a fuel internal combustion engine, the ejection system is provided with a high-pressure storage used for multiple cylinders. The ejection system (200) also comprises a high pressure pump (202), a pressure regulating valve (208); and a control device (214) used for controlling the pressure regulating valve (208) and used for keeping a system pressure in the high pressure storage (204) in routine work. The pressure regulating valve (208) at least partially releases an exhaust part to a low pressure pipeline (210) under the condition of not being controlled. Via a throttling part (218), fuel flow from the high pressure storage (204) to a low pressure pipeline (216) is limited, so as to at least guarantee a lowest pressure in the high pressure storage (204) required for work of the internal combustion engine. The throttling part (218) is operable in a mode of irrelevant to control of the pressure regulating valve (208).