Fuel injecting device for a combustion engine, has fuel tank connected with machine room of a high pressure pump by a booster pump engaged in a primary pressure line, where a filter engages in the primary pressure line

摘要

The fuel injecting device has a fuel tank (4), which is connected with a machine room (2) of a high pressure pump by a booster pump engaged in a primary pressure line (3). A filter (6) engages in the primary pressure line. A metering unit (17) is arranged on the outlet side of the machine room for fuel. An overflow valve (8) is provided. The overflow valve is arranged on the inlet side of the machine room. The overflow valve is placed in the primary pressure line. An overflow outlet of the overflow valve discharges into a return pipe (9) in the fuel tank.