A capless fuel unit having an elongated housing open at each end and defining a first and a second longitudinally spaced fluid ports. First and second door assemblies each include a flapper valve associated with a first fluid port and a second flapper valve with a second fluid port, the flapper valves being movable between open and closed positions and resiliently urged toward their respective closed positions. A pressure relief valve is at least partially contained within an interior of the flapper valves. The various plastic components of the capless unit incorporate Graphene or a Graphene-derivative for resisting hydrocarbon emission from fuel vapors escaping from the unit to the atmosphere.

A plastic tank for a motor vehicle. The plastic tank includes a container wall composed of plastic, an opening arranged in the container wall, a removable cover member operable to close and open the opening, and a stiffening ring member, composed of an injection-moulded plastic, embedded into an edge of the container wall that surrounds the opening, the stiffening ring member being operable to directly or indirectly support the cover member when the opening is closed.

A tubular fuel filler pipe body is a blow molded body and is adapted to connect to a fuel tank at one end thereof. The fuel filler pipe body includes in an outer circumferential surface of another end side thereof an annular recessed groove. The fuel filler pipe body includes an opening of the other end thereof to which a nozzle guide is mounted. The nozzle guide includes on an one end side thereof an annular covering portion configured to cover annularly the outer circumferential surface of the other end side of the fuel filler pipe body. An annular rubber sealing member configured to seal between an inner circumferential surface of the annular recessed groove and an inner circumferential surface of the annular covering portion fits with the annular recessed groove.

A fuel tank includes an outer component including an outer panel forming a tank outer shell and an inlet plate formed separately from the outer panel, an inner component including an inner panel forming a tank inner shell and an inner connection plate formed separately from the inner panel, and a pipe passing through inside of the outer panel and the inner panel and connecting the inlet plate and the inner connection plate. The inlet plate is joined to the outer panel, the inner connection plate is joined to the inner panel, and the inner panel is joined to the outer panel.

A fuel filler port includes a resin fuel filler port main body formed tubular and having an interlock part on an outer circumferential surface thereof; an inlet metal fitting at least having an outer tube part formed tubular, positioned and disposed in the fuel filler port main body, and disposed to face the outer circumferential surface of the fuel filler port main body in a radial direction; and an earth metal fitting formed in a plate shape and interlocked with the interlock part. The earth metal fitting includes a tip bent part disposed between the outer circumferential surface of the fuel filler port main body and an inner circumferential surface of the outer tube part in the radial direction and disposed while having a biasing force in the radial direction with respect to the inner circumferential surface of the outer tube part.

A method can be used to form a plastic filler neck for a vehicle. The method includes providing a fuel injection pipe comprising a polyamide material containing nanoclay and having a single layer structure in cross-section, inserting and fastening a retainer into an internal space of a tip of the fuel injection pipe to support a refueling gun, directly fastening a cap holder to the tip of the fuel injection pipe, and mounting an air drain casing to an outer diameter portion of the cap holder fastened to the fuel injection pipe using a mounting bracket.

A line system for connecting a liquid intake assembly to a liquid tank including a first fluid line for conducting a first fluid, a second fluid line for conducting a second fluid, the first and the second fluid lines being connected in an area between their respective first and second end by a connecting structure extending between the first and the second fluid lines, the connecting structure being integrally connected both with the first as well as with the second fluid line, at least one section of the first fluid line and one section of the second fluid line being arranged fluidically in parallel to each other, and the connecting structure having a fastening formation embodied in one piece with the first fluid line and a counterpart fastening formation embodied physically separately from the fastening formation and in one piece with the second fluid line.

A filling head for introducing operating fluid into an operating fluid tank of a motorized vehicle, where the filling head includes: A filling head housing, where the filling head housing exhibits a delivery-accommodation region for accommodating delivery devices, A venting structure, which during a transmission of operating fluid through the filling head housing allows transmission of gas, Where the delivery-accommodation region exhibits a plug-in nozzle extending along a virtual nozzle path with a plug-in orifice through which an accommodating space is accessible, Where in the filling head housing, at an axial magnet distance from the plug-in orifice, there is arranged a magnet arrangement, Where the venting structure includes a channel arrangement which is bounded by an inner wall of the plug-in nozzle and by an outer wall of the plug-in nozzle, wherein from the plug-in orifice as far as and into the extension region of the magnet arrangement there proceeds a gas-impermeable boundary surface which bounds the accommodating space radially outward, where a cross-sectional area enclosed by the boundary surface and orthogonal to the nozzle path is at least not larger in the extension region of the magnet arrangement than in a reference region located between the magnet arrangement and the plug-in orifice.

A plastic filler neck for vehicles includes a fuel injection pipe, a retainer inserted and fastened into an internal space of a tip of the fuel injection pipe to support a refueling gun, a cap holder directly fastened to the tip of the fuel injection pipe by fusion, and an air drain casing mounted, by a mounting bracket, to an outer diameter portion of the cap holder fastened to the fuel injection pipe.

A filler neck (1) for filling an operating substance, such as fuel or AdBlue® or urea, or an additive, such as water, into a vehicle tank by way of a fuel pump nozzle. The filler neck (1) has a filler neck body (2), which can be accommodated in a filler pipe leading to the vehicle tank. The filler neck (1) furthermore has a fuel pump nozzle guide with an insertion section (4) for guiding a fuel pump nozzle, which is accommodated or is to be accommodated in the filler neck body (2), in the direction of the vehicle tank. The filler neck body (2) and the insertion section (4) of the fuel pump nozzle guide are formed together as an integral casting, in particular plastics injection moulding.