Is the role of fuel filter water and impurity in the gas filter. When the engine working
, under the action of fuel in the gasoline pump, through into the tubing into the filter of the precipitation cup. Velocity decreases, because of the large volume change at this time, heavier than oil and contaminants in the water and the bottom of the precipitation in the cup, light impurities with the fuel flow filter, and clean fuel from the filter pore permeability filter inside, and then through the tubing.
Have two kinds of porous ceramics and paper filter. Paper filter made from treated by resin microporous filter, high efficiency, low cost, easy to change, so widely used.
Has carburetor and efi gasoline filter, using the carburetor petrol engine, fuel filter in the oil transfer pump inlet side, working pressure is small, generally adopts nylon case, efi engine fuel filter is located on the export side of the oil transfer pump, the working pressure is higher, often use a metal shell. The fuel filter filter using filter paper, and a use of nylon fabric, high polymer material.
