A siphoning-off guard for a motor vehicle tank system that includes a filler pipe head, a tube and a motor vehicle tank, the motor vehicle tank system contains components which form an end region, the siphoning-off guard being fastened to the end region on the outside surface of the component.

The present invention relates to an anti-theft device for fuel tanks, wherein the anti-theft device comprises a pipe to be secured to a fuel inlet, wherein the pipe comprises attachment means at its upper portion, furthermore the pipe comprises at least one opening disposed in the side wall of the pipe, wherein the pipe is closed at a lower portion and that said pipe accommodates a substance, wherein said substance is adapted, in the event of a fuel theft attempt, to be carried with the fuel into the pump used during the theft attempt and thereby prevent continued pumping with it, and that the substance is further adapted to be incapable of leaking into the actual fuel tank.

The present invention relates to a fuel oil theft prevention tool configured to prevent theft or siphoning of fuel oil from a fuel tank. The tool is compact and lightweight and includes a metal femalefemale reduced coupling, a heavy-duty metal screen having a plurality of holes disposed therein, the screen is positioned inside the reduced coupling and is secured/biased and held tight by a torsional spring, a malefemale hex bushing having a hexagonal head is positioned inside the reduced coupling over the screen for further securing of the screen. The tool is positioned between the fuel delivery pipe and the supply pipe and is configured to allow flow of fuel oil in only one direction.

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.

The present invention discloses a filling device (1) for a motor vehicle operating fluid container (3). The filling device (1) comprises a mouth hole connection piece (11), into which a dispensing valve (40) can be introduced in order to fill the operating fluid container (3). The filling device (1) further comprises a compensation chamber (24) to which the mouth hole connection piece (11) is connected in fluid terms. A connection piece (21) of the filling device (1) is arranged between the operating fluid container (3) and the compensation chamber (24) and is connected in fluid terms to the operating fluid container (3) and the compensation chamber (24). The filling device (1) is distinguished in that the connection piece (21) protrudes into the compensation chamber (24), the connection piece (21) is arranged so as to face the mouth hole connection piece (11) and to be spaced apart therefrom, the connection piece (21) is surrounded by the compensation chamber (24), and a dispensing valve (40) can be introduced through the mouth hole connection piece (11) into the connection piece (21).

An anti-siphoning device, particularly for preventing the extraction of fuel from tanks, the anti-siphoning device includes a ring provided with an axial tube and with which an additional ring is associable which is coupled to the tank. The device further includes the first end of a duct which protrudes within the tank associated rotatably with the axial tube and is provided, axially and at the second end, with an ogive which is adapted to guide and direct the flow of the fuel according to a fluid stream. Elements are further provided for spacing apart the ogive from the inner lateral surface of the duct.

An apparatus and system are disclosed for a fuel receiver. The apparatus includes a base having an inlet and an outlet that defines an interior channel through which fluid is flowable. The apparatus also includes a first valve movable relative to the base between a closed position and an open position allowing fluid flow through the inlet. The apparatus also includes a second valve independently movable relative to the base and the first valve, the second valve movable between a closed position and an open position allowing fluid flow through the inlet. The system includes the apparatus, and a fluid reservoir or tank in fluid communication with the apparatus.

The present invention relates to a fuel oil theft prevention tool configured to prevent theft or siphoning of fuel oil from a fuel tank. The tool is compact and lightweight and includes a metal femalefemale reduced coupling, a heavy-duty metal screen having a plurality of holes disposed therein, the screen is positioned inside the reduced coupling and is secured/biased and held tight by a torsional spring, a malefemale hex bushing having a hexagonal head is positioned inside the reduced coupling over the screen for further securing of the screen. The tool is positioned between the fuel delivery pipe and the supply pipe and is configured to allow flow of fuel oil in only one direction.

A device for filling a fuel tank with fuel, comprising a tube formed member comprising an opening at a top end thereof for receiving fuel from a fuel nozzle, the tube formed member extending in a longitudinal direction of the device; and a fuel distribution member arranged to be provided inside the fuel tank and being connected to the tube formed member at a bottom end thereof, wherein the fuel distribution member comprises first and second plate elements which are spaced apart in the longitudinal direction and extend from the tube formed member in a radial direction thereof so that a space for fuel is formed between the first and second plate elements, wherein at least one of the first and second plate elements comprises perforations located in an area radially outside of the tube formed member for allowing fuel to enter the fuel tank.

Fuel anti-theft systems, apparatus, and methods. Embodiments provide fuel anti-theft systems including a circuit and sensors which define nominal (secure) and tampered-with states. The tampered-with states are indicative of the sensor(s) being absent. Controllers of the current embodiment, moreover, senses a combined state of (all of a pre-selected number of) the sensors and determines therefrom whether all of the sensors are present and secure. In some embodiments, the controller senses the sensors (which can be wired in parallel) via a vehicle chassis ground. If desired, a resistor (which is about electrically equivalent to one of the sensors) and/or a geo-positioning system can be connected to the controller. The sensors can include normally open switches and clamps, cable ties, adhesives, etc. which close the switches. Some sensors include grounding straps while others include ground return leads. In some embodiments, sensors are positioned at vehicle fuel caps and/or fuel filters.