A funnel insert for a filler tube of a fuel tank for a motor vehicle, the funnel insert being arranged in an end region of the filler tube intended to receive a fuel nozzle, and there being a space between the outside of the funnel insert and the inside of the filler tube, in which space a fluid barrier is arranged. According to the invention, the fluid barrier is in the form of a sealing body arranged on the outer circumference of the funnel insert, which sealing body comprises a sealing lip resting on the inside of the filler tube in portions or circumferentially, and consists of a material having a higher flexibility than the material of the funnel insert.

A refuelling coupling has an annular fitting 101 having a bore 102, bayonet lugs 103 and slots 104 suiting it for connection to a pressure filling nozzle. A flange 122, drilled with screw holes for securement to a fuel tank (not shown), extends out from the fitting 101. Also not shown for the sake of clarity is a tube extending own from the flange. Rods extend down from the flange 122 to a spider 125, with springs bearing upwards onto the underside of a dry-break member 105, through which the rods extend. The rods, springs and spider are within the non-shown tube.

On attaching and opening of a pressure filling nozzle to the coupling, the dry-break member 105 is displaced resiliently inwards fuel can flow past this member and into the tank.

The dry-break member has a central aperture 111, normally closed by a plug 112, which is threaded externally 114 and carries an O-ring seal 115 above the thread. The central aperture has a plain bore orifice 116 and is threaded 117 below the plain bore. Thus, when the plug is screwed in, the dry-break member is fluid tight as normal.

A capless filler pipe closure is provided for a tank filler pipe. The capless closure permits a fuel pump nozzle to be inserted into the tank filler pipe without first removing a fuel cap from the outer end of the tank filler pipe.

A capless filler neck structure including a filler tube configured to be fixed into a vehicle and define a transfer passage for fuel to be transferred to a fuel tank of the vehicle, a first retainer fitted into the filler tube, a first flapper positioned adjacent to the first retainer to be sealed from the outside, a second retainer positioned adjacent to the first retainer and fitted into the filler tube, a cover fitted to the second retainer to define an opening configured to receive a fuel gun, a second flapper positioned adjacent to the second retainer to be sealed from the outside, and an anti-error-injection member fitted to the second retainer and configured to be unlatched when the fuel gun having a predetermined diameter or more is inserted.

A capless closure is provided for a tank filler pipe. The capless closure permits a fuel pump nozzle to be inserted into the tank filler pipe without first removing a fuel cap from the outer end of the tank filler pipe.

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 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.

A fuel fill opening structure for a fuel tank includes a fuel filler pipe, a fuel fill opening, and a flow guide. The flow guide includes a main guide wall which partitions a fuel introduction region inside the fuel filler pipe into an upper space communicating with a tank main body side and a lower space communicating with the fuel fill opening side, and a partition wall provided to be continuous with the main guide wall and configured to close a space between an upper surface side of the main guide wall and an inner surface of the fuel filler pipe. The main guide wall includes a bent inclined part that is bent and inclined downward from a middle portion in running from the fuel fill opening side toward the tank main body side. The bent inclined part has a shape in which a width thereof becomes smaller when viewed from above as it inclines downward.

A capless filler neck structure including a filler tube configured to be fixed into a vehicle and define a transfer passage for fuel to be transferred to a fuel tank of the vehicle, a first retainer fitted into the filler tube, a first flapper positioned adjacent to the first retainer to be sealed from the outside, a second retainer positioned adjacent to the first retainer and fitted into the filler tube, a cover fitted to the second retainer to define an opening configured to receive a fuel gun, a second flapper positioned adjacent to the second retainer to be sealed from the outside, and an anti-error-injection member fitted to the second retainer and configured to be unlatched when the fuel gun having a predetermined diameter or more is inserted.

A fuel adapter includes: an adapter main body, an outer panel-side seal part, and an inner panel-side seal part. The adapter main body is formed of a rigid plastic. The outer panel-side seal part and the inner panel-side seal part are formed of a flexible plastic to be elastically deformable. The inner panel-side seal part is capable of being subject to a deflection deformation that absorbs a variation of a relative position between the outer panel and the inner panel.