Electric fuel pump with high heat dissipation efficiency

The invention discloses an electric fuel pump with high heat dissipation efficiency. The electric fuel pump comprises a pump shell and an oil storage barrel, an oil storage barrel is fixedly connected in the pump shell; oil inlets are formed in the lower surfaces of the oil storage barrel and the pump shell; a filter assembly is fixedly connected in the oil storage barrel; an opening in the lower end of the filter assembly is fixedly connected with a pressure regulating valve and a primary filter screen; the distance between the flange and the pump shell is reduced by pressing the flange, so that the fuel pump is placed in an oil tank, then the flange abuts against the upper end of the oil tank under the elastic force of the spring, and therefore the fuel pump is fixed. The first connecting pipe is connected with the engine through a pipeline; the second connecting pipe is connected with the carbon tank through a pipeline; the first connector and the second connector are electrically connected with a vehicle-