what is fuel filter？

The function of the fuel filter is to remove the iron oxide, dust and other solid impurities contained in the fuel to prevent the fuel system from being blocked (especially the fuel injector). Reduce mechanical wear, ensure stable engine operation and improve reliability.

From car accessories to car parts, there has been a qualitative leap from the outside to the inside of the car, but the fuel filter has not been paid attention to. He is the least frequently replaced among the car filters. Carbon emissions, fuel filter from external to built-in, from carburetor to EFI, built-in fuel filter has become a trend.

The gasoline filter in the fuel filter is divided into carburetor type and electronic injection type. For gasoline engines using carburetor, the gasoline filter is located on the inlet side of the fuel pump, and the working pressure is low. Generally, a nylon casing is used. The gasoline filter of the jet engine is located on the outlet side of the fuel pump, and the working pressure is relatively high, usually with a metal casing. The filter element of the gasoline filter mostly uses filter paper, and some also use nylon cloth and polymer materials.

The structure of the diesel filter in the fuel filter is roughly the same as that of the oil filter, and there are two types: replaceable and spin-on. However, its working pressure and oil temperature resistance requirements are much lower than those of oil filters, while its filtration efficiency requirements are much higher than those of oil filters. The filter element of diesel filter mostly uses filter paper, and some also use felt or polymer material.