FUEL SUPPLY DEVICE

摘要

A resilient member is accommodated within a single support column, which connects a flange and a pump unit. The resilient member presses the pump unit in an axial direction toward a bottom part of a fuel tank through a holder member. The support column is formed in a polygonal tube shape and has a specific range in a part in the axial direction. A peripheral wall in the specific range is concave relative to corner parts of peripheral walls in an outside of the specific range so that a longitudinal groove having a groove bottom is provided to separate an inside and an outside of the support column. The holder member holding the pump unit is formed in a polygonal hole shape to be fitted with the peripheral walls. The holder member has a slide protrusion, which slidingly moves in the longitudinal groove in a state that the holder member is pushed into the longitudinal groove from the outside of the support column.

主权项

1. A fuel supply device comprising:
a flange mounted on a fuel tank of a vehicle; a pump unit disposed in the fuel tank for discharging fuel toward an outside of the fuel tank; a holder member holding the pump unit; a single support column extending from the flange and connecting the flange and the pump unit, the single support column being movable relative to the holder member in an axial direction; and a resilient member accommodated in the support column and pressing the pump unit toward a bottom part of the fuel tank in the axial direction through the holder member, wherein the support column is formed in a polygonal tube shape having a specific range partly in the axial direction and has a first peripheral wall and a second peripheral wall, the first peripheral wall being formed with corner parts in an outside of the specific range and a second peripheral wall formed in an inside of the specific range and the second peripheral wall being concave to form a longitudinal groove having a groove bottom for separating an inside and an outside of the support column in a radial direction, and wherein the holder member is formed to have a polygonal hole shape to be fitted with at least one of the first peripheral wall and the second peripheral wall and has an accommodation hole and a slide protrusion, the accommodation hole accommodating the support column relatively movably in the axial direction, and the slide protrusion being movable to slide in the longitudinal groove in a state of entering from an outside of the support column into the longitudinal groove.