A fuel tank structure including: a fuel tank that is made of resin, and that is structured to include an upper wall portion and a lower wall portion; a supporting pillar portion that is made of resin, that is provided at an inner side of the fuel tank, that has one end portion welded to the upper wall portion and another end portion welded to the lower wall portion, and that connects the upper wall portion and the lower wall portion in a vehicle vertical direction; a sub-cup that is disposed at the inner side of the fuel tank; an urging portion that urges the sub-cup toward the lower wall portion; and a restricting portion that is provided at the supporting pillar portion, and that restricts relative displacement of the sub-cup with respect to the fuel tank in directions orthogonal to the vehicle vertical direction.

A built-in support pillar for a fuel tank including: a support pillar main body that is configured to be disposed inside a box-shaped fuel tank, and that joins together mutually facing internal walls of the fuel tank; an engaging portion for positioning that is formed on an outer circumferential surface of the support pillar main body; and a bracket that is mounted on the support pillar main body, the bracket including an engaged portion configured to be engaged with the engaging portion, and a fixing portion to which a built-in component is fixed.

A system for reducing fuel slosh noise in a storage tank is described. In one particular example, the system comprises a slatted baffle with angularly arranged louvers extending therefrom to reduce sloshing noise in the tank by redirecting fuel waves while preventing surface wave collisions in the tank. In this way, the louvered baffle has the ability to provide different fuel flows based on the direction of flow incident on the slatted baffle, which may enhance the driving experience, particularly in hybrid and start-stop vehicles, where periods exist in the drive cycle where background engine noise is absent.

Embodiments relate to fluid baffles and parts and kits for making such baffles. For example, some embodiments relate to a fluid baffle for use in a tank, where the baffle comprises: a body defining an interior volume and defining a plurality of fluid passage apertures at spaced positions around the body to allow fluid to easily pass into and out of the interior volume; wherein the body comprises a continuous wall that defines a plurality of convex regions spaced from each other around the body and defines concave regions between the convex regions.

Structure for reducing sloshing noises, said structure being provided for disposal in a liquids container for a motor vehicle, having a random arrangement of mutually interlinked threads, wherein a plurality of the threads at least in portions are connected in a materially integral manner to at least one or a plurality of further threads of the structure, wherein the structure has at least one side in the region of which a planar cover of the random arrangement of mutually interlinked threads is provided at least in portions.

A motor vehicle storage tank includes a tank wall having an inner tank wall and an outer tank wall which collectively define a closed interior space to receive a liquid, at least one baffle arranged in the closed interior space, and a heating element integrated in the baffle to heat the liquid received in the closed interior space.

Methods and systems are provided for a baffle system of a fuel tank. In one example, a baffle system for a fuel tank may include a horizontal section and a vertical section, where the vertical section is arranged perpendicular to the horizontal section and includes a first end coupled to the horizontal section. The vertical section may be rigidly attached to a top surface of the fuel tank via an attachment interface.

Various techniques are provided for an energy absorbing fluid bladder. In one example, the fluid bladder includes a bladder body and a perforated baffle structure. The perforated baffle structure can be disposed within the bladder body and configured to mitigate a pulse of fluid (e.g., fuel) moving within the bladder body before the pulse reaches the bladder body. Related methods are also disclosed.

A vehicle tank having a container and a pair of spaced apart baffle plates directly connected to walls of the container to define a swirl pot. The baffle plates have at least one orifice which lies spatially above the swirl pot, and within the swirl pot, the baffle plates have valves to allow an inflow of fuel into the swirl pot.

A fuel tank structure including: a fuel tank that is mounted to an automobile and that stores fuel; a bat shaped member that is fixed to a ceiling portion inside the fuel tank, and that maintains a contact state with the fuel by expanding or contracting according to a fluid surface height of file stored inside the fuel tank; a pump housing recessed portion that is formed to a bottom portion of the fuel tank with a fuel pump disposed therein; and a fuel flow path that is in communication with the pump housing messed portion and that extends from the pump housing recessed portion in a groove shape.