ASSISTANCE PUMP MOUDULE OF FUEL SUPPLY APPARATUS

摘要

PURPOSE: A sub pump module of a fuel supply device is provided to prevent the leakage of fuel to a lower height tank from a reservoir cup due to siphon phenomenon. CONSTITUTION: A sub pump module of a fuel supply device comprises a upper main body(110), a lower main body(120) and a flow path controller(130). The upper main body comprises a fuel inlet(112). The fuel inlet is connected to the fuel inlet formed on the floor side of the reservoir cup. The upper main body comprises a fuel outlet(114) having a nozzle in order to discharge fuel to the inside of the reservoir cup. The lower main body is combined with the upper main body in order to form the fuel pumping path between the fuel inlet and fuel outlet. The flow path controller opens the inhalation flow path in the fuel inhalation through the inhalation flow path of the fuel inlet. The flow path controller closes the inhalation flow path in the fuel inhalation abort.