Fuel pump module
A fuel pump module for a fuel tank providing improved rigidity includes a first module and a second module. The first module includes a first tank having a first tank room, a direct injection (DI) fuel pump and filter, a port injection (PI) fuel pump and filter, a subtank, and a first flange supporting the filter, the pump, and the like. The second module includes a second tank having a second tank room where fuel is stored separately from the first tank room, a PI filter, a second jet pump, a second flange supporting the filter, the pump, and the like. As a result, a size of two flanges supporting two fuel pumps and two filters is reduced, thereby, reducing a size of two openings of the fuel tank.
1. A fuel pump module configured to supply fuel from a fuel tank to an internal-combustion engine, the fuel tank having a first opening and a second opening, the fuel pump module comprising:
a first pump configured to discharge fuel from the fuel tank to a combustion chamber of the internal-combustion engine;
a first filter configured to remove foreign substance from fuel that is discharged from the first pump;
a first supply port disposed at a position between the first filter and the combustion chamber and configured to allow fuel that is filtered by the first filter to flow therethrough;
a second pump configured to discharge fuel from the fuel tank to an air-intake system of the internal-combustion engine;
a second filter configured to remove foreign substance from fuel that is discharged from the second pump;
a second supply port disposed at a position between the second filter and the air-intake system and configured to allow fuel that is filtered by the second filter to flow therethrough;
a first flange that closes the first opening of the fuel tank and that supports at least one of the first pump, the second pump, the first filter, or the second filter;
a second flange that closes the second opening of the fuel tank and that supports at least an other one of the first pump, the second pump, the first filter, or the second filter; and
a plurality of tank rooms inside the fuel tank, the plurality of tank rooms including at least a first tank room and a second tank room separately arranged from each other, wherein the first flange closes the first opening located on the first tank room, and the second flange closes the second opening located on the second tank room.
2. The fuel pump module according to claim 1 , wherein
the first pump is configured to discharge a greater volume of fuel to the internal-combustion engine than the second pump,
the first pump and the first filter are supported by the first flange, and
the first supply port is disposed on the first flange.
3. The fuel pump module according to claim 2 , wherein
the second filter is supported by the second flange, and
the second supply port is disposed on the second flange.
4. The fuel pump module according to claim 1 , further comprising:
a fuel transport unit configured to transport from the first tank room to the second tank room or from the second tank room to the first tank room.
5. The fuel pump module according to claim 4 , further comprising:
a jet pump disposed in the fuel transport unit and in fluid communication with the first pump or the second pump to transport fuel from the first tank room to the second tank room, or from the second tank room to the first tank room.
6. The fuel pump module according to claim 4 , further comprising:
a transport pipe fluidly connecting the first tank room and the second tank room.
7. The fuel pump module according to claim 1 , wherein:
the first flange closes the first opening of the fuel tank and supports the first pump and the second pump, and supports one of the first filter and the second filter; and
the second flange closes the second opening of the fuel tank and supports another of the first filter and the second filter.
8. The fuel pump module according to claim 1 , wherein:
the first pump and second pump are located in the first tank room, and the second filter is located in the second tank room.