What components make up the fuel supply system of diesel engine? What are their respective functions?

Diesel tank

Storage of diesel oil.

oil transfer pump

Ensure that diesel oil circulates in the low-pressure oil circuit, and provide enough fuel with a certain pressure to the fuel injection pump, and the oil delivery amount should be 3-4 times of the maximum fuel injection amount at full load.

Low pressure pipeline

Transport diesel oil.

Diesel filter

The function of diesel filter is to filter out harmful impurities and moisture in the fuel system, protect the normal operation of the engine, reduce wear and tear, avoid blockage and improve the life of the engine.

ejector pump

According to the load of diesel engine, a certain amount of diesel oil is pressurized to a certain pressure and sent to the injector at a specified time.

pressure piping

Transport diesel oil.

Fuel injector

Atomize the diesel oil into fine particles and distribute the oil mist reasonably.

oil return pipe

Excess fuel flows back to the fuel tank through the fuel return pipe.