Abstract: Before inner components of a hydraulic shock absorber, such as a cylinder, a piston and a piston rod, are placed, an outer shell is joined with a joint portion of an assembling apparatus so that a gas pressure chamber and the outer shell are in communication with each other. A low-pressure gas is supplied in the gas pressure chamber and the outer shell. Under a pressure of the low-pressure chamber, an oil tank subassembly is inserted in the outer shell and is fitted therein to form an oil tank. The oil tank is divided into an oil chamber and a gas chamber by a diaphragm. By this assembling method, it is possible to supply the low-pressure gas into the gas chamber without a need for a gas-supplying hole for supplying the gas into the gas chamber.

Abstract: A fuel system includes a fuel tank filler neck associated with a fuel tank. The fuel tank filler neck includes a fill tube for receiving a fuel-dispensing pump nozzle and a fuel conductor interconnecting an interior region of the fuel tank and a passageway formed in the fill tube.

Abstract: Provided are adapter caps comprising a housing having a top, a bottom an edge, and a hub at the top of the housing. A plunger is slidably disposed about the hub, and a plurality of lock fingers are pivotally attached to the housing substantially at the edge, the lock fingers being actuable, responsive to movement of the plunger. A guide including an inner circular wall and an outer circular wall with the inner circular wall having a passageway disposed therethrough is present at the bottom of the housing. A cap as provided is selectively attachable to a coupling fitting having a first passage through which a liquid may pass and a second passage separate and distinct from the first passage through which vapor may pass, to provide accurate fuel level readings of a reservoir to which the coupling is attached.

Abstract: A refillable fuel supply assembly for a fuel cell is disclosed herein. The assembly includes a refillable fuel supply adapted to supply fuel to a fuel cell, a refilling fuel cartridge containing fuel to be transferred to the refillable fuel supply, and a lock-and-release device connecting the refilling fuel cartridge to the refillable fuel supply to transport fuel from the refilling fuel cartridge to the refillable fuel supply. The lock-and-release device also retains the refilling fuel cartridge to the refillable fuel supply until the refilling fuel cartridge is substantially free of fuel.

Abstract: A fuel tank opening-closing device includes a shutter mechanism situated inside a tank neck defining member and adapted to open a shutter body in response to insertion of a fuel nozzle. The shutter mechanism includes a push mechanism having a push member situated in an insertion passage; an interconnection mechanism having springs adapted to accumulate force of displacement of the push member as mechanical energy; and a nozzle sensing mechanism. The nozzle sensing mechanism has introduction pressure members adapted to receive displacement force of the fuel nozzle in the insertion direction, and lock portions that allow the shutter to move to the opening position.

Abstract: System for filling a tank comprising a fill pipe and a pipe head comprising an inlet valve and a moveable stopper in the head under the valve, characterized in that the valve comprises a peripheral part and a central part and in that only the peripheral part is coupled to the stopper and capable of causing the opening and/or unlocking of the latter under the pressure of a large-diameter fill nozzle, the central part being moveable with respect to this peripheral part so as to be able to swing under the action of a smaller-diameter fill nozzle, without acting on the stopper, while being connected to this same peripheral part so as to be entrained and swung with it under the pressure of a large-diameter fill nozzle.

Abstract: A refilling system for a vehicle including a body panel having a fixed opening, an adjustable refilling assembly partially enclosed by the body panel, the adjustable refilling assembly including a first port and a second port, the adjustable refilling assembly movable between at least a first configuration in which the first port is aligned with the fixed opening and a second configuration in which the second port is aligned with the fixed opening.

Abstract: A liquefied gas storage/delivery system and method that includes a liquefied gas storage system. The liquefied gas storage system includes a housing containing a storage vessel suited to contain a supply of liquefied gas, such as liquid oxygen (LOX). A rotatable turntable is provided on an exterior surface of the housing. An interface shaped to match the shape of at least a portion of a portable liquid storage/delivery device is provide in or on the turntable. A connector is disposed in the interface that couples to a corresponding connector on the portable liquid storage/delivery device. The two connectors are coupled by placing the portable liquid storage/delivery device in the interface and rotating the turntable.

Abstract: A purging station with a substrate container receiving zone having at least one upwardly extending purging nozzle. The nozzle has a circular engaging lip. The substrate container has support means for at least one substrate and a purge port assembly that includes an externally facing sealing flange facing downward from the container. The sealing flange has a central aperture and a cantilevered flange portion that engages with the circular engaging lip of the nozzle. The weight of the substrate container on the nozzle carried by the canilevered portion of the flange causes bending of the flange for a resilient soft seal.

Abstract: A disconnect apparatus for a gravity fed hopper for a paint spray pump includes a valve that automatically opens when the hopper outlet is attached to an inlet of the pump and closes when the hopper outlet is detached from the pump inlet. A structure for wiping the interior of the outlet may be provided to remove material from the outlet as the hopper is separated from the pump.

Abstract: A mis-fuel inhibitor in an inlet neck assembly of a vehicle fuel system discriminates between nozzle diameters, allowing entrance of nozzle diameters at or greater than a predetermined minimum diameter while inhibiting entrance of nozzles having diameters less than the predetermined minimum diameter. An actuator responsive to nozzle diameters engages and disengages locking arms that are associated with a primary shutoff valve flapper door.

Abstract: The filling end piece comprises a duct having an insertion aperture and a sleeve moveable with respect to the duct. The sleeve is adapted to adopt a withdrawn position when not urged and an advanced position when it is urged by a movement of insertion of a spout of large diameter. The end piece comprises an obstacle for countering the filling by a small spout. The end piece comprises an end of travel abutment for a small spout, fixed with respect to the duct and projecting inwardly, the abutment being distinct from and upstream of the obstacle in the duct.

Abstract: A system for filling pre-charged aerosol cans comprising a frame, a power actuator on the frame having an output member that extends forcibly downwardly through a stroke of fixed length and retracts upwardly, a combined reservoir and filling head supported in the frame generally below the output member, the filling head having a cylindrical dispensing bore and an outlet below the bore adapted to be coupled to the valve of the aerosol can, a dispensing piston with a lower face operable in the bore to create hydraulic pressure on liquid received in the bore from the reservoir, a set of cooperating elements for coupling a dispensing piston to the output member selectively at a plurality of predetermined fixed spacings from the output member, whereby the volume of fluid displaced from the dispensing chamber by the dispensing piston is regulated to fill cans of different capacity while the output member of the power actuator traverses its stroke of constant length.

Abstract: The present invention teaches a refill bottle adapted to repeatedly receive and dispense liquid such as perfume. The refill bottle comprises a bottle having a bottom portion and an upper portion, an opening provided in the upper portion wherein the opening is adapted to be covered, and a refill mechanism provided in the bottom portion. The liquid is received through the refill mechanism from a regular bottle preferably provided with a spraying mechanism and is dispensed through the opening.

Abstract: An adapter includes a base connectable to an anesthetic agent container, a spout that extends from the base and defines at least one flow path therethrough, and a valve assembly disposed within the at least one flow path, the valve assembly being moveable between a first open position and a second closed position. The adapter also includes a radially expandable seal disposed about the spout, the seal having a first end, a second end, and an intermediate region between the first and second ends that expands radially outward relative to a longitudinal axis of the spout. The valve assembly has a surface that cooperates with the seal, wherein the cooperation between the surface and the seal expands the intermediate region radially outward relative to the longitudinal axis with the valve assembly in the first position.

Abstract: A sealing device for a tank access opening whereby the ball is arranged to be displaced within the tank access opening. On introduction of a fuel nozzle, the ball opens the tank access opening.

Abstract: A capless fuel filler device includes an anti-contamination seal mounted upon an external portion of a fuel filler passage extending through the device. An anti-contamination plug may selectively be inserted into the combination passage so as to sealingly engage the anti-contamination seal. A contaminant drain leading from the valve body's fuel and nozzle passage serves to not only remove liquid contaminants from the fuel and nozzle passage, but also to mitigate any incidental buildup of vacuum within the fuel tank.

Abstract: Provided herein are couplings useful in the transfer of liquid fuels from a remote storage reservoir to an on-board fuel tank of a motorized vehicle. There is provided a first coupling which is configured to be in fluid communication with the interior of a vehicle's fuel tank, and a second coupling which is intended to be in fluid communication with the contents of a remote fuel storage reservoir. The disclosure also includes a process for charging a fuel reservoir on board of a motorized vehicle from a remote reservoir, wherein the vapor in the fuel reservoir is displaced by an equal volume of fuel delivered from said remote reservoir, and wherein the vapor in said fuel reservoir is simultaneously caused to be transferred to said remote reservoir, thus permitting no escape of the vapor from said fuel reservoir to the surrounding atmosphere.

Abstract: A coupler (1) for a fuel cell according to the embodiment has a socket (1s) and a nozzle (1n). The socket (1s) is provided to the fuel cell (2) and has a valve (40). The nozzle (1n) is provided to a fuel cartridge (3) for storing a liquid fuel for the fuel cell (2) and has a valve (14). The coupler (1) supplies the liquid fuel stored in the fuel cartridge (3) to the fuel cell (2) by opening both the valves (14, 40) by contacting mutually when the socket (1s) and the nozzle (1n) are connected. At least one valve selected from the socket side and the nozzle side has a head section (14a or 40a) and rod sections (14b and 14c, or, 40b and 40c) arranged at opposite ends axially of the head section (14a or 40a), and the rod section (14b or 40b) on the contact side is mainly made of a metal member.

Abstract: The invention relates to an adapter cartridge for supplying fuel to a device set up for fuel cartridge operation alternatively to the fuel cartridges, also by means of an external tank or an external supply pipe. The adapter cartridge comprises a fuel feed device and an interface on the load side for releasing the fuel, which is formed according to the corresponding interface of the fuel cartridge.

Abstract: A fuel intake assembly may include a main tube (24, 56, 98, 122) defining a fuel channel (25, 57, 99) at least one flapper (30, 94, 126, 166) pivotally secured within the main tube (24, 56, 98, 122), and a selective nozzle inhibitor (160) proximate the at least one flapper (30, 94, 126, 166). The least one flapper closes the fuel channel (25, 57, 99) in a closed position. The selective nozzle inhibitor (160) allows a first nozzle having a first diameter to move the at least one flapper into an open position. The selective nozzle inhibitor (160) allows a second nozzle having a second diameter to move the at least one-flapper into the open position, wherein the second diameter is greater than the first diameter. The selective nozzle inhibitor (160) prevents a third nozzle having a third diameter to open the at least one flapper, wherein the third diameter is less than the first diameter.

Abstract: A protective cover for a filler neck is designed to discriminate between different sizes of fuel nozzles. The cover includes a body portion and a movable door that covers and exposes an opening in the filler neck. The body portion has a pair of spaced body protrusions that form a gate, and the door has a ledge that may also be formed by a pair of spaced door protrusions. The protrusions on the door can be easily moved to an open position by pressing a tip of a fuel nozzle against the protrusions. The gate and the ledge are configured so that they can accommodate the fuel nozzle for only one type of fuel.

Abstract: A filler neck for the fuel tank of a motor vehicle, comprising a flap and a locking element. The filler neck is designed such that it is impossible to fill the tank with the wrong fuel. The foregoing is achieved by the fact that the flap can be rotated about a hinge pin which is three-dimensionally movable and while the flap is retained by at least two elements that are pivotable about one respective pin. One of the pivotable elements supports the hinge pin of the flap while another pivotable element is configured as a locking lever that is disposed across from the hinge pin.

Abstract: The filling end piece comprises a duct having an insertion aperture and a sleeve moveable with respect to the duct. The sleeve is adapted to adopt a withdrawn position when not urged and an advanced position when it is urged by a movement of insertion of a spout of large diameter. The end piece comprises an obstacle for countering the filling by a small spout. The end piece comprises an end of travel abutment for a small spout, fixed with respect to the duct and projecting inwardly, the abutment being distinct from and upstream of the obstacle in the duct.

Abstract: The tank opening-closing device is realized with a simple constitution of the opening-closing mechanism equipped with a pressure adjustment valve for regulating the internal pressure of the fuel tank. The opening-closing mechanism is equipped with a gasket provided on the opening peripheral edge part of the inlet of the tank opening forming member, the valve opening-closing mechanism for opening and closing the inlet and also regulating the internal pressure of the fuel tank, and a retraction mechanism that selectively moves the valve opening-closing mechanism to the closing position and the fueling position in conjunction with the fueling gun, The valve opening-closing mechanism has a closing position for opening and closing the inlet and a fueling position retracted from the inlet for which it is possible to supply fuel.

Abstract: A shut-off valve or connecting valve capable of connecting a fuel supply to a fuel cell is disclosed. The valve comprises a first valve component and a second valve component. Each valve component has an outer housing and a biased slidable member disposed inside the housing forming an internal seal. During the connection process, the two valve components establish an inter-component seal. Afterward, in one suitable embodiment the slidable member moves inward and opens the internal seal in the valve component to establish a flow path. In another embodiment, the slidable member moves inward and exposes a first filler and the first filler abuts a second filler in the other valve component to establish a flow path. In other embodiments, at least one valve component is sized and dimensioned to limit access to the internal seal.

Abstract: The invention relates to an installation for filling an aerosol container with liquid, whereby the aerosol container is of the type that comprises at least one frame (1), means (3A, 3B) for holding—in a removable manner—a scoop (10) of liquid for filling on the frame (1) at a mount point (4) that is located above the point (5) where the aerosol container is mounted, a pushing element (6) with a removable piston head (7), and means that indicate when the piston head (7) is not attached to the pushing element (6).

Abstract: A joint device has a joint and a connecting device. The joint is mounted with a gas container and has a leakage proof element, a gas-inlet and a threaded stub. The leakage proof element is mounted with the gas-inlet and has a head, an outer annular groove and a connecting portion. The connecting device is covered with the leakage proof element and has a head holder, a connecting tube, two pivotal pins, two buckling elements and two springs. The head holder is mounted with the connecting tube and has two pinholes and through holes formed on the external surface. The buckling elements are connected with the head holder by the pivotal pins and each buckling element has a tab, a connecting arm and a pillar locked with the outer annular groove. The springs are mounted between the connecting tube and the tabs, and respectively contacted to the tabs.

Abstract: The present invention provides a fitment for attachment to a container for holding and dispensing a fluid. The fitment comprises a generally cylindrical spout having an external surface capable of mating with a collar of a dispensing connector, an external slider movable axially within said spout and an internal slider movable axially within the external slider. The internal slider is movable between a closed position that prevents the flow of fluid through the fitment and an open position that allows for the flow of fluid through the fitment. The internal slider is adapted to be moved between the closed and open positions by insertion of a dispensing connector into the external slider adjacent said internal slider. The internal slider is biased towards said closed position.

Abstract: A nozzle inhibitor is included in a fuel tank filler neck closure assembly. The nozzle inhibitor blocks full insertion of a small-diameter unleaded fuel nozzle into the filler neck closure assembly yet allows full insertion of a large-diameter diesel fuel nozzle into the filler neck closure assembly.

Abstract: Sealing system for fuel tank fill head comprising: a valve that can be moved between an open position, in which fuel may be introduced into a fill pipe, and a closed position in which the fill pipe is closed, the valve passing from one position to the other under the effect of a pressure exerted by a filling nozzle head; a locking system capable of locking the valve in its closed position; and an actuation system capable of being moved between a closed position and an open position under the effect of introducing the filling nozzle into the fill head. The locking system and the actuation system are capable of cooperating together so that a displacement of the actuation system from its closed position to its open position causes a displacement of the locking system from a locked position to an unlocked position. The actuation system comprises a rotatable cam equipped with a coupling pin capable of cooperating with the locking system.

Abstract: An aircraft refueling system incorporates a fuel port adapter configured to allow the use of jet fuel nozzle spout but prevent the use of avgas nozzle spout. The device has an opening that configured to receive a standard jet fuel nozzle spout. The device also includes a blocking plate that prevents a smaller, round standard avgas nozzle spout from being inserted into the opening. In addition, the device includes one or more spring-loaded flapping doors to prevent incorrect refueling while the jet fuel nozzle spout is not inserted through the flapping doors.

Abstract: A closure device for tank filler necks in motor vehicles. The closure device has the object of configuring the tank filling operation to be more comfortable. This objective is achieved in that at least two closure elements are swivel-mounted on the tank filler neck, the closure elements having insertion bevels on their top that are designed in such a way that when a fuel nozzle is placed on them the closure elements swivel and open the tank filler neck.

Abstract: The object is to provide a connector to be attached to a liquid tank, which reduces a trouble of arranging a plug, is advantageous in cost and capable of preventing misconnection, is provided by compactly integrating two types of plugs, which are a liquid delivery plug and a gas feeding plug. The connector is to be attached to a liquid tank for delivery of an internal liquid, and is constructed of: a plug (1) fixedly mounted on the tank; and, a corresponding socket (2) connected thereto. The connector is characterized by the plug (1) and the socket (2), wherein: the plug (1) is provided with a liquid passage (8) and a gas passage (12); and, the socket (2) is provided with: a liquid passage (38) communicating with the liquid passage (8); a liquid passage connecting piece (21) communicating with the liquid passage (38); a gas passage (34) communicating with the gas passage (12); and, a gas passage connecting piece (37) communicating with the gas passage (34).

Abstract: Sealing system for fuel tank fill head which comprises: a shutter (1) that can be moved between an open position, in which fuel may be introduced into the fill pipe, and a closed position in which the fill pipe is closed, the shutter (1) passing from one position to another under the effect of the thrust exerted by a filling nozzle (62, 64); a shield (7) that is placed upstream of the shutter (1) and that can be moved between an open position, in which the shutter (1) is accessible, and a closed position in which the shutter (1) is protected from the atmosphere by the shield (7); and a nozzle inhibitor designed so as to only allow opening of the shutter (1) when a filling nozzle head of predefined diameter (62, 64) comes into contact with the nozzle inhibitor. The nozzle inhibitor is integrated into the shield (7).

Abstract: A capless seal door for a fuel tank filler tube employs a door valve with a flexible annular seal which, upon closing against a seat on the undersurface of a nozzle-receiving orifice formed in a bulkhead across the tube, initially wipes on the seat and is subsequently compressed thereon.

Abstract: A simple, reliable system is provided for automatically dosing vehicle fuel tanks with a fuel additive, particularly a concentrate containing a fuel borne catalyst (FBC), using gravity as the means of injection, preferably with no electronics or complex mechanical parts. The system includes a supply line for feeding fuel additive by gravity from an additive reservoir and opening into a filler spout of a fuel tank, a ball-in-seat valve at the end of the supply line biased in normally closed position and operable to an open position by mechanically pressing a release on the ball-in-seat valve, and a pivotable lever positioned within the filler spout and including a projection capable of mating with the ball-in-seat valve release upon pivotable movement. Upon insertion of a filler hose into the filler spout, the filler hose moves the lever and projection to press the release on the ball-in-seat valve thereby dispensing additive.

Abstract: A vehicle tank includes an intake tube, on the end of which is placed a filling-fixture containing an automatic tank closure. The filling-fixture is made of one piece with the intake tube. The automatic tank closure is integrated in an insert. The filling-fixture forms a recess on its upper end into which the insert can be placed. A fissure joint is sealed with the aid of a sealing element between the filling-fixture and the insert and the securement of the insert in its recess is assured by a retaining flange. The flange is circumferentially connected in a radially outlying area with the filling-fixture and the flange extends so far radially inward that it covers the fissure joint and an inward extending area of the upper side of the insert.

Abstract: An apparatus and method is provided for automatically venting a fluid from at least a portion of a pressurized system. An interconnection between two devices in the system contains an automatic bleed valve configured to automatically seal a vent hole when the two devices are coupled together and to automatically unseal the vent hole before the two devices are separated. In an embodiment, an adapter includes a ring that both screws a connector onto a device and seals a vent hole. A pin is pushed into the vent hole as the connector is screwed to the device. To remove the adapter from the device, the ring is turned to both unseal the vent hole and to unscrew the connector from the device. Turning the ring releases the pin before the connector is unscrewed.

Abstract: A nozzle inhibitor is positioned in a filler neck closure assembly between a pivotable outer door and a pivotable inner door to prevent a user from pumping unleaded fuel into a diesel fuel tank. The nozzle inhibitor blocks full insertion of a small-diameter unleaded fuel nozzle into the filler neck closure assembly yet allows full insertion of a large-diameter diesel fuel nozzle into the filler neck closure assembly.

Abstract: A filling system for an anesthetic evaporator is improved such that an anesthetic-specifically coded adapter neck (5) of a bottle adapter (1) can be introduced into the filler neck of a filling device. An outer polygon (7) is provided on the bottle adapter and an inner polygon designed correspondingly thereto is provided on the filler neck as anesthetic-specific codings.

Abstract: A device for dosed allocation of a flowable material component with at least one supply container for receiving the material component has an outlet and an associated removal device having an inlet via which the material component can be removed from the supply container in dosed charges by a screw and a controllable drive. The supply container and the removal device can be moved relative to each other to connect the outlet of the supply container to the inlet of the removal. The screw is disposed, without drive, in the region of the outlet of each supply container and comprises an outlet-side coupling means. The controllable drive is disposed in the region of the inlet of the removal device and comprises a drive shaft with a terminal coupling which can be connected to a coupling of the screw for secure mutual rotation therewith. A supply container and a removal means for such a device as well as container scales with a removal means of the above-mentioned type are also proposed.

Abstract: A refueling arrangement for a direct oxidation fuel cell. A refueling cartridge includes a coupling which is geometrically keyed to a fueling port associated with the fuel cell. By properly engaging the coupling with the fueling port, a fuel flow path is opened which allows fuel to pass from the cartridge to the fuel cell. Disengaging the coupling from the fueling port closes the fuel flow path. Refueling is accomplished in rapid, trouble-free and safe manner.

Abstract: The valved container assembly comprises a container positionable on an adjustable stand. The container incorporates an outlet tube adjacent the bottom of the container, the outlet tube incorporating an inline flow control valve and an end valve which stops flow through the tube when flow into a receptacle for fluid from the container reaches a height below overflow.

Abstract: An automatic tank closure for a motor vehicle tank with a housing having a penetrating input opening and having an opening and closing closure flap with pivotal bearings, which is subjected to spring loading in the closing direction is provided. The closure flap is located within the input opening for the closing of the same and whereby in the closed position between the closure flap and the housing is placed a sealing surface with a sealing seat, which conically widens itself toward the interior of the tank and coacts with a sealing ring. The sealing ring is designed with at least one lip seal and sealingly coacts with the sealing surface.

Abstract: A replacement fuel intake device is provided that is removably mountable within a base portion of a vehicle and contains a housing that is pivotal from a closed position to an open position. While in the closed position, the fuel intake passage to the fuel tank is sealed. While in the open position, the fuel intake passage is able to receive fuel from a fuel nozzle. The fuel intake device can be combined with a condensation capture apparatus that provides multiple coils in communication with a fume tube. The coils are cooled during fueling by the fuel passing around them from their placement inside the fuel intake pipe and act to condense fuel fumes into fuel for return to the fuel tank as the fumes rise toward the fume tube. The replacement fuel intake device can also include a pressurization and depressurization valve.

Abstract: The valved container assembly comprises a container having a combined inlet/outlet incorporating an inlet valve, an outlet tube positionable over the inlet, the outlet tube incorporating an inline flow control valve and an end valve which stops flow through the tube when flow into a receptacle for fluid from the container reaches a height below overflow, the assembly allowing no vapor escape during filling or emptying of the container.

Abstract: A fuel feeding device 10 has a first shutter mechanism 20 that has a first closing member 21 to open and close a first seal opening UP1, a second shutter mechanism 30 that has a second closing member 31 to open and close a second seal opening UP2, and a coupling mechanism 40 that guides the second closing member 31 to be opened and closed in conjunction with the opening and closing action of the first closing member 21. In the process of fuel supply, when a fuel supply gun presses open the first closing member 21, the second closing member 31 moves in conjunction with the first closing member 21 via the coupling mechanism 40 to open the second seal opening UP2. In the fuel feeding device 10 for a fuel tank, the opening and closing mechanism of the closing member arranged in an inlet pipe IP is substantially free from any significant trouble.

Abstract: A capless automotive fueling system having a funnel with a port open to receive a fuel filling nozzle. A spring loaded valve is movable between an open position in which the port is open and a closed position in which the fuel valve overlies and sealingly covers the port. A shield is movable between a first position in which the shield overlies and covers the valve, and a second position in which the shield is laterally disposed to one side of the valve to permit insertion of the fuel filling nozzle. A motor is drivingly connected to the shield and, on activation, moves the shield from its first and to its second position. Alternatively, two latches engage the valve to retain the valve in a closed position. Upon insertion of a properly sized fuel nozzle, the nozzle engages the latches and pivots them to an open position.

Abstract: A refueling system for vehicles including a dual valve receiver connected in fluid communication with the fuel tank, and a jet sensor inside of the fuel tank and in fluid communication with the receiver. The refueling system further includes a relief valve vent in fluid communication with the fuel tank to vent the fuel tank and to relieve pressure that may otherwise build up inside the fuel tank during refueling. When refueling with an automatic shutoff nozzle, the sensor detects when a desired fuel level has been reached, and then informs the receiver to prevent fuel flow into the tank. When this occurs, the pressure inside the receiver and automatic shutoff nozzle increases, causing the nozzle to shut off automatically.