Fuel filter

The utility model discloses a fuel filter, which comprises a tank body, the open end of this jar of body is provided with strains the seat, the internal filter core that is provided with of jar, thisfilter core with the jar body and strain an inner chamber that the seat formed separate become to strain before the cavity with strain the back cavity, it has seted up the oil feed passageway and hasproduced oil the passageway to strain the seat, preceding cavity is strained to the export intercommunication of oil feed passageway, the back cavity is strained to the entry intercommunication of passageway of producing oil, the cavity lies in the inboard of filter core before straining, the cavity lies in the outside of filter core after straining, the top position of cavity is less than the topposition who strains the back cavity before straining, the entry of passageway of producing oil is offered in the top of straining the back cavity. Adopt the fuel filter of this structure, when appearing the air in fuel filter