Fuel pump features; compact, low cost, one-way, oil, over voltage function of oil spills. Used DC motor and pump conjoined structure, motor of shell and pump shell for integration design, pump of export and motor of within cavity connected, in space Shang greatly saves has material, reduced has outside type size, fuel in pump of thrust Xia, from imports entered, pushed to export, entered motor of within cavity in the, last through electric fuel pump of export outflow, in fuel of mobile process in the, can will motor produces of heat took, up to thermal of efficacy. When the engine stops working, in order to keep the car oil pressure, at the exit of the electric fuel pump with non-return valve structure; at the same time in order to prevent the oil plug, fuel pump pressure oil stretches, the fuel pump has pressure overflow relief valve structure.

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