Fuel feed apparatus having sub-tank
AssigneeDenso Corporation
InventorsKatsuhisa Yamada, Kiyoshi Nagata
Life of this patent
Estimating the term…
Abstract
A fuel feed apparatus has a flange and a sub-tank detachable each other in its axial direction. A connector protrudes from the flange toward the sub-tank, and opposes to a space formed in the sub-tank. The connector is received in the space when the flange is mounted on the sub-tank. Therefore, the connector can be prevented from interference with a pump module eccentrically arranged in the sub-tank. The space is defined in the opposite side of the fuel pump, so that the inner space of the sub-tank is widely secured and efficiently used. Thus, distance between the flange and the sub-tank can be reduced, so that the height of the fuel feed apparatus can be reduced.
Claims14
A fuel feed apparatus for pumping fuel received in a fuel tank, which has an opening, the fuel feed apparatus comprising:
- a lid that covers the opening of the fuel tank;
- a sub-tank that is received in the fuel tank and is connected to the lid;
- a fuel pump that is received in the sub-tank and pumps fuel received in the fuel tank;
- and
- a first auxiliary device that is provided to the lid and projects from the lid toward a bottom base wall of the sub-tank;
- wherein:
- the first auxiliary device is movable with respect to a space defined in the sub-tank in an axial direction which is generally perpendicular to a plane of the lid;
- the first auxiliary device is oriented to the space, which is defined in the sub-tank, in the axial direction;
- the fuel pump is eccentrically arranged in the sub-tank;
- and
- the space is defined in the opposite side of the fuel pump with respect to a central axis of the sub-tank.
A fuel feed apparatus for pumping fuel received in a fuel tank, which has an opening, the fuel feed apparatus comprising:
- a lid that covers the opening of the fuel tank;
- a sub-tank that is received in the fuel tank and is axially movably connected to the lid in such a manner that the lid is movable relative to the sub-tank between a first position and a second position in an axial direction, which is generally perpendicular to a plane of the lid, and the first position is further spaced apart from the sub-tank in comparison to the second position;
- a fuel pump that is received in the sub-tank and pumps fuel received in the fuel tank;
- and
- a first auxiliary device that is secured to the lid and projects from the lid toward a base wall of the sub-tank in the axial direction, wherein:
- when the lid is positioned in the first position, a distal end of the first auxiliary device, which is oriented toward the base wall of the sub-tank and is distal from the lid, is out of an axial extent of the sub-tank measured in the axial direction;
- and
- when the lid is positioned in the second position, the distal end of the first auxiliary device is received in a space defined in the sub-tank such that the distal end of the auxiliary device is located in the axial extent of the sub-tank.
A fuel feed apparatus for pumping fuel received in a fuel tank, which has an opening, the fuel feed apparatus comprising:
- a lid that covers the opening of the fuel tank;
- a sub-tank that is received in the fuel tank and is connected to the lid;
- a fuel pump that is received in the sub-tank and pumps fuel received in the fuel tank;
- and
- a first auxiliary device that is provided to the lid and projects from the lid toward a bottom base wall of the sub-tank;
- wherein:
- the first auxiliary device is movable with respect to a space defined in the sub-tank in an axial direction which is generally perpendicular to a plane of the lid;
- the first auxiliary device is oriented to the space, which is defined in the sub-tank, in the axial direction;
- the sub-tank has a step section on a peripheral side of the sub-tank;
- the step section is recessed in a diametric direction of the sub-tank;
- and
- the space is at least partially non-overlapping with respect to the step section in a circumferential direction of the sub-tank.
Dependencies are inferred from the claim text.