Fuel pump with automatic function of clearing up of filter screen

The utility model discloses a fuel pump with automatic function of clearing up of filter screen belongs to the fuel pump field. A fuel pump with automatic function of clearing up of filter screen, includes the fuel pump body, this internal filter of installing of fuel pump, the upper end of filter is connected with respectively spouts oil pipe and relief valve, the filter in -connection has fuel pump pump core, the lower extreme of fuel pump pump core is connected with the filter screen, the upper end of relief valve is connected with sealed lid, the cavity is left with the upper end of reliefvalve in the top of sealed lid, upper end one side of sealed lid is connected with the bursting tube, be connected with the pressure valve on the bursting tube, the upper end opposite side of sealedlid is connected with the connecting pipe, the outside of filter screen is encircleed there is the hose. It can realize coupling together relief valve and filter screen, through pressure release ability towards the adnexed imp