A connection ring is provided for removable attachment of a fuel supply unit on a fuel tank. The connection ring has a ring upper side, at least one attachment elevation which protrudes from the ring upper side, and at least one tool engagement region. The tool engagement region is constructed such that a torque from a tool can be transmitted onto the connection ring. At least one portion of the tool engagement region and one portion of the attachment elevation are at an equal distance from the center of the connection ring in the radial direction from the center.

Methods and systems are provided for a fuel system including a fuel filler pipe, an anti-siphoning device, and a fuel tank. In one example, a manufacturing method may include internally welding an anti-siphon device to a fuel filler pipe, applying a metal coating to the welded device and pipe including the internal welds, and externally welding the coated pipe including the device to a fuel tank. The metal coating to the filler pipe, the device and the internal welds may be applied by an electroless plating process but the electroless plating may not be applied to the external welds.

A support structure which includes tank formed rack comprising at least two modules affixed to each other via attached bases and a method of reduced weight storage of fuel tanks also for use in motor vehicles wherein the fuel tanks via attached bases are used to form a portion of the rack superstructure.

To assist in maintaining a seal ring in a proper position in a fuel tank assembly, a retaining ring is utilized. The retaining ring surrounds the seal ring to provide a physical barrier to restrict the seal ring. The assembly includes a tank having an opening and a plurality of flanges located about the opening, a fuel pump module, the retaining ring and a seal ring. The retaining ring is located within the plurality of flanges, positioned around the opening and the fuel pump module. The seal ring is located within the plurality of flanges, positioned around the opening and the fuel pump module such that in a radial direction the seal ring is positioned between the fuel pump module and the retaining ring, and in an axial direction the seal ring is positioned between the fuel pump module and the fuel tank.

Systems and methods for installing and sealing a fuel pump in a fuel tank are disclosed. In one embodiment, a system for installing and sealing a fuel pump in a fuel tank may include (1) a fuel tank with an opening in a surface thereof; and (2) a fuel pump hanger assembly, the fuel pump hanger assembly comprising; (a) a plurality of assembly screws; (b) a plurality of clamping lugs configured to thread onto the plurality of assembly screws and engage an inside surface of the fuel tank; (c) a top plate further comprising; (i) a bearing surface configured to engage an external fuel tank surface; (ii) a plurality of through holes proximate the perimeter of the top plate and perpendicular to the bearing surface; (iii) a plurality of bosses, each of the plurality of bosses adjacent to each through hole, configured to guide and position the each clamping lug; and (d) a gasket positioned between the top plate and the fuel tank.

A fuel inlet includes: an inlet pipe to form a path to guide fuel to a fuel tank; a breather tube to form a path to guide vapor in the fuel tank toward a distal end portion of the inlet pipe; and a retainer provided at a distal end portion of the inlet pipe and including: an attachment and detachment mechanism to attach and detach a fuel filler cap; a restriction mechanism to restrict a distal end position of a fuel filling gun; and an air vent hole to allow passage of the vapor supplied from the breather tube toward the distal end portion of the inlet pipe. The retainer includes a first component including the attachment and detachment mechanism and a second component secured to the first component and including the restriction mechanism. The air vent hole is a gap formed between the first component and the second component.

A resin fuel tank includes a fuel tank main body (19) in which a closed space for storing fuel is formed in its interior; a built-in part (24) that is disposed within the closed space and is fixed to a wall portion of the fuel tank main body by at least two mounting portions (46); connecting portions (32, 34) of the built-in part, which are separated from the wall portion and that connect the two mounting portions (46); and deformation absorbing portions (48A, 48B) of the built-in part which are elastically deformable, are upside-down U-shaped as seen in side view and are provided between the mounting portions (46) and the connecting portions (32, 34), one ends (68A, 68B) of the deformation absorbing portions being fixed to the connecting portions, and other ends (56A, 56B) of the deformation absorbing portions being separated from the connecting portions in a height direction.

A filler pipe mounting structure that suppresses permeation of the fuel constituents and that provides ease of mounting. The filler pipe mounting structure includes a resin fuel tank including a projecting cylindrical neck; a fastening member including an embedded section and a joining section, the embedded section being embedded in the neck along a circumferential direction thereof, the joining section formed on the embedded section and exposed from an inner wall of the neck; a mounting member disposed on an end portion of a filler tube and attached to an inner side of the fastening member, the filler tube being in communication with the fuel tank; and a seal member placed between the inner wall of the neck and the outer wall of the mounting member.

Some of the present apparatuses include a frame defining first and second supports and at least a portion of a rigid tank mount laterally offset from the first and second supports, where the first support is configured to be pivotally coupled to a vehicle such that the frame is movable relative to the vehicle between a first position in which the second support is spaced apart from the vehicle and second position in which the second support is coupled to the vehicle. Some apparatuses include a frame mount having a flange defining a bounded opening configured to receive a fastener and a post extending from the flange and away from the opening, where the first support is configured to be pivotally coupled to the flange via the fastener and the second support is configured to be coupled to the post when the frame is in the second position.