Patent ID: 7901572
Filing Date: 2011-03-08
Classification: B01D,F02M

Abstract:
1. A fuel filter apparatus, comprising: a bag-shape filter body attached to a fuel inlet of a fuel tank so as to connect the fuel inlet and an internal space of the filter body, wherein said filter body comprises two or more filters laminated each other and having average aperture diameters different from each other, and a range of the aperture diameter constituting an aperture area which accounts for 10% of a total aperture area of a filter A made of an unwoven cloth among the filters, said 10% of the total aperture being accumulated from a largest aperture, and a range of the aperture diameter constituting an aperture area which accounts for 10% of a total aperture area of a filter B made of an unwoven cloth having the largest average aperture diameter next to the filter A, said filter B being disposed outside of the filter A, are approximately overlapped, and wherein the range of the aperture diameter constituting an aperture area which accounts for 10% of the total aperture area of the filter B, said 10% of the total aperture being accumulated from a largest aperture, and a range of the aperture diameter constituting an aperture area which accounts for 10% of a total aperture area of a filter C made of an unwoven cloth having a largest average aperture diameter next to the filter B, said filter C being disposed outside of the filter B, are approximately overlapped.