FUEL SUPPLY DEVICE USING FUEL SUPPLY UNIT PLACED IN HOUSING

摘要

PURPOSE: A fuel supply device is provided to minimize the loss of supply occurred due to the general gas removing over pressure valve. CONSTITUTION: The device comprises:a gas removing valve(10) placed in an inlet lid(6) of a fuel supply unit(2) and connected with a circular channel(8) of an impeller housing(7) via a gas removing hole(11); an inlet lid(6) installed in the bottom area of a housing(1); an impeller(9) arranged on a circular channel(8) in an impeller housing(7); and a fuel pump(4) for flowing of the fuel;:Herein, the gas removing valve(10) is opened until the gas is completely removed by the first tensile force of a pressure spring(14) when the impeller stops and starts to operate. Thereby, the fuel supply unit obtains the optimum supply performance in the range of whole rotating numbers of a supply pump.