The composition and working principle of the various components of the automobile fuel system 1 Fuel tank (gasoline tank) → for storing fuel.Fuel pump (electric gasoline pump) The role of the gasoline pump is to suck gasoline out of the fuel tank, and through the pipeline and the gasoline filter, it is pressed to the oil rail, atomized by the fuel injection nozzle, and finally reaches the combustion chamber.

　　The fuel is washed out of the fuel tank by the oil pump, and the impurities are filtered out by the fuel filter, and then sent to each injector through the oil pipeline distribution pipe.The injector is based on the instructions issued by the electronic control unit.An appropriate amount of fuel is injected into the intake trachea or cylinder of each strong> and mixed with the air to form a combustible mixture.

　　Most of the fuel system is composed of fuel pumps, fuel filters, fuel injectors, etc. Its role is to ensure the fuel flow required by the engine in various working conditions and conditions.The fuel system undertakes fuel filling and transportation, which ensures that the fuel reaches the engine smoothly and is supplied to the engine for work.

　　The task of the gasoline engine fuel supply system is to formulate a certain amount and concentration of combustible mixture according to the requirements of various operating conditions of the engine, and supply it to the cylinder so that it will ignite and burn near the end of compression and expand to do work.Finally, the supply system should also discharge the combustion product, the exhaust gas, into the atmosphere.