| 摘要 |
PROBLEM TO BE SOLVED: To configure a bag-like filter body easily and appropriately while achieving the enhanced filtration accuracy of a filter body and a longer life thereof as much as possible. SOLUTION: A fuel filter F provided at fuel suction port in a fuel tank T and in a fuel line P' and used for the filtration of fuel. At least one of filter materials 14 constituting the fuel filter F is made to function as multifunctional filter materials 14a while have functions for capturing dust different in particle size stepwise so that opening diameters of the filter materials 14 differ from each other at primary sides 12 and secondary sides 13 of the filter materials 14, and reduced toward the secondary sides 13. COPYRIGHT: (C)2010,JPO&INPIT
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