FUEL PUMP MODULE

Provided is a fuel pump module in which: a pump unit in which both a fuel pump having a suction port connected to a fuel filter and an electric motor are accommodated in a pump housing is accommodatedinside a module case arranged outside a fuel tank; and a vapor discharging hole for discharging vapor from a pump chamber of the fuel pump is formed in the pump housing. A fuel reservoir chamber (54)that stores fuel returned from a regulator (33) is formed inside the module case (27) and is in communication with the vapor discharging hole (53). A returning pipe (56) that returns the fuel containing vapor from the fuel reservoir chamber (54) into the fuel tank is disposed adjacent to the module case (27). The vapor discharging hole (53) is arranged below an upper end of an opening end (56a) of the return pipe (56) opening to the module case (27). Thus, the need for an expensive pressure sensor or the like is eliminated, making it possible to detect the clogging of the fuel filter at low cost. 本发明的燃料泵模块在配置于燃料箱外侧的模块