Knowledge analysis of the principle and maintenance of automobile fuel filter

Clean upFuel FilterIs very important.Fuel oilFilterString in the pipeline between the fuel pump and the throttle body inlet.

The function of the fuel filter is to remove solid impurities such as iron oxide and dust contained in the fuel to preventFuel SystemBlockage (especially the nozzle), reduce mechanical wear, ensure stable operation of the engine, and improve reliability. The structure of the fuel burner is composed of an aluminum shell and a stainless steel bracket. The bracket is equipped with high-efficiency filter paper components and filter paper. Seen as a chrysanthemum shape to increase the flow area, the EFI filter cannot beCarburetorThe filter is universal. Because the EFI filter often bears the fuel pressure of 200~300kPa. Therefore, the pressure strength of the filter is generally required to reach more than 500kPa, and the filter of the carburetor cannot meet the requirements.

The fuel filter must be replaced every 30,000 kilometers. If the fuel impurity content is large, the driving distance should be shortened accordingly. The arrow on the fuel filter housing indicates the direction of fuel flow. When installing the fuel filter, it is not allowed to install it upside down. Even if it works in the flip-chip state for a short time, it must be replaced. (Dahe Net)