Fuel supply system for premixing of diesel engine

摘要

The present invention relates to a fuel supply device of a diesel engine, and in particular, a fuel supply for allowing a portion of the fuel returned from the injection nozzle to be injected into the intake port because the fuel pumped from the fuel injection pump is not completely injected from the injection nozzle. A fuel supply pump 2 for pressurizing and supplying fuel stored in the fuel tank 1 to an injection pump 4, and a fuel filter for filtering fuel supplied from the fuel supply pump 2 ( 3), an injection pump 4 for supplying the filtered fuel to the fuel distribution pipe 5 and the injection pipe 9 and pumping it to the injection nozzle 6 in the combustion chamber 8, and at the injection nozzle 6 In the fuel engine of the diesel engine composed of a return pipe 10 for returning the remaining fuel injected into the fuel tank 1, the intake port 11 is connected to the return pipe 10 formed in the upper combustion chamber Fuel ball extended internally Pipes 21 and; An injector 22 connected to an end of the fuel pipe 21 in the intake port 11 to inject fuel; The solenoid valve 20 is installed on the return pipe 10 to control the fuel supply to the fuel pipe 21 is further configured and the solenoid valve 20 is controlled by the ECU to be.