Abstract: A permeation resistant polymer fuel tank having a multilayer wall that includes a structural layer and a vapor barrier layer. A secondary barrier layer is attached to the multilayer wall wherein the vapor barrier layer and the second barrier layer have a permeation rate less than the structural layer. A protective coating may be applied over the secondary barrier layer to add durability and prevent degradation of the secondary barrier layer from environmental hazards that fuel tanks may be exposed to.

Abstract: The present invention provides methods for integrating structural members inside the body of a propulsion vehicle with tankage used to store fluid propellant and the like. Propulsion vehicles may be made lighter, more compact, cheaper, and easier to manufacture by using pressurized membranes of the tankage to accomplish other structural purposes. More specifically, tanks may be integrated with thrust structures to transfer thrust loads from the engine to the main body of the vehicle. Alternatively, the tanks may be integrated with the vehicle engine. One tank may be integrated with one or more other tanks to form a single pressure vessel with multiple interior chambers. Methods of manufacturing a metallic integrated tank assembly include weld fabrication, machining, spinning, hydroforming, casting, forging, plating, metal deposition, or some combination thereof. Methods of manufacturing a composite integrated tank assembly include filament winding, fiber placement, hand-lay-up, or some combination.

Abstract: A fuel tank disposed on a lower face of a floor panel beneath a driver's seat and a passenger's seat. A protruding portion of the fuel tank that protrudes rearward is housed within floor tunnels formed in the floor panel. A fuel supply pipe is connected to the rear end of the protruding portion. This not only enables the capacity of the fuel tank to be increased by utilizing an inner space of the floor tunnels, but also enables the resistance against fuel fed to the fuel tank to be reduced by shortening the fuel supply pipe.

Abstract: A fuel tank with an opening, on which a lid is mounted in a removable manner by means of thread or bayonet, is intended to provide a sustained and sealed closure under all conditions. For this purpose, two sealing rings are arranged between the sealing surfaces, the inner one being liquid-tight and the outer one being made of an elastomer with high permeation resistance. The sealing surfaces within the outer sealing ring have a narrow gap leading as far as the outer sealing ring, and the fuel tank has a reinforcement surrounding the opening.

Abstract: The structural platform (11) of the vehicle comprises two tanks (T1) and (T2) for the storage on a vehicle of fluids under pressure. Each tank comprises at least one network of cells (2) connected to one another via orifices (3), the orifices being conformed so that the flow of fluid caused by the consumption of fluid necessary for the use of the vehicle exhibits only pressure drops which do not affect the use, and being conformed so that, in the event of rupture of one or more cells (2), the leakage flow causes sufficiently large pressure drops to limit the flow thereof.

Abstract: A self-aligning bracket for use in mounting a planar surface such as a roof to a fixed structure such as a bank of fuel cylinders mounted to the roof of a vehicle frame. The bracket provides a locating block on a saddle mount which co-operates with a depression formed on the inner surface of the roof to align fasteners depending from the roof with a coupling fastener on the bracket. The coupling fastener is laterally moveable within an oversized hole in the bracket and engages the locating block to permit co-rotation. An anchor is attached to an end of the coupling fastener so that when the roof fastener is actuated in the coupling fastener, the anchor is drawn towards the coupling fastener, tightening the locating block, coupling fastener and anchor to the saddle mount, preventing further lateral movement.

Abstract: An in-tank fuel line quick connector assembly for a fuel tank in a vehicle including a first member adapted to be disposed inside of the fuel tank and having a projection extending outwardly. The in-tank fuel line quick connector assembly also includes a second member adapted to be disposed inside of the fuel tank and having a cavity to receive the projection. The in-tank fuel line quick connector assembly further includes a seal ring disposed in the cavity to engage the first member. The second member has opposed latches adjacent the cavity and being movable to engage the projection for retaining the first member and the second member together.

Abstract: A fuel tank for a motor vehicle is fabricated from an austenitic stainless steel sheet having elongation of 50% or more after fracture by a uniaxial stretching test with a work-hardening coefficient of 4000 N/mm2 or a ferritic stainless steel sheet having elongation of 30% or more after fracture with Lankford value of 1.3 or more. The stainless steel sheets are reformed to a complicated shape of a fuel tank without work flaws such as cracks or break-down. Excellent corrosion-resistance of stainless steel itself is maintained in the fabricated fuel tank. Consequently, the proposed fuel tank is used without diffusion of gasoline to the open air over a long term.

Abstract: A system for refueling a motorized marine vehicle without spilling fuel into the water is disclosed. A fuel tank is typically located within the vehicle and includes a filling tube and a vent tube secured thereto. A vent hole is formed in the vehicle and the vent tube of the fuel tank is in fluid communication with the vent hole. The present invention includes a tube in fluid communication with the vent hole of the marine vehicle for transporting any fuel located within the vent tube to a remote location. A vacuum source is connected to the tube. The vacuum source is adapted to draw the fuel through the tube and into a receptacle attached to the vacuum source.

Abstract: The invention relates to an operating medium tank (1) for a drive unit (2), especially for an internal combustion engine (3) of a portable handheld work apparatus. The tank (1) has a fill opening (4) and a output opening (5) in the housing wall (6) of the tank. According to the invention, at least one base (7) having a lug (8) is formed as one piece from the housing wall (6) in order to configure the tank so as to be operationally safe and easy to assemble. The tank (1) can be fixed with the aid of the lug (8) so as to be form-tight and separable on a receptacle (9) of the drive unit (2).

Abstract: A fuel container formed by bonding upper and lower sections, for which both the upper and lower sections are made by thermo-forming a multi-layer sheet that comprises an interlayer of a barrier resin (A) and inner and outer layers of a polyolefin (B), and of which the surface of the innermost layer is coated with a layer of a barrier material (C).

Abstract: A polymeric fuel tank having a first body joined to a second body is constructed having a substantially continuously barrier layer surrounding the tank. The first body has an inner surface terminating at a free edge and a first mating surface adjacent the free edge. A first barrier layer is fixed adjacent the inner surface of the first body. The second body has an inner surface terminating at a free edge and has a second mating surface adjacent to the first mating surface and the free edge of the second body to define a fuel cavity. A second barrier layer is fixed adjacent the inner surface of the second body. At least one weld joint joins the first mating surface to the second mating surface and the first barrier layer to the second barrier layer to provide the continuous barrier layer in the fuel tank.

Abstract: A fuel tank assembly has a cover adapted for attachment to a structural member of a vehicle to define an enclosure between the cover and structural member and a fuel tank is received within the enclosure. Preferably, a space exists between the fuel tank and the cover, and the space is communicated with a fuel vapor canister to remove fuel vapor from the space and prevent it from escaping to the atmosphere. Desirably, the cover shields the fuel tank from the atmosphere, debris, and adjacent vehicle components.

Abstract: Low permeation fittings and low permeation plastic containers using same are constructed by molding an outer component into the wall of a plastic container while it is being formed. This causes the opening of a passageway in the outer component to be covered with wall forming material. The inner component is then inserted into the outer component through the wall forming material thereby trapping the wall material between the internal and external components. The barrier layer of the container wall is therefore continuous from the container to inside the fitting. A new fuel container, fuel neck fitting, and flange for mounting components on a fuel tank are disclosed.

Abstract: A resin member has a first barrel member 30, which can be welded to the fuel tank, and a second barrel member having a higher melting temperature than the first barrel member. The first barrel member is joined to the outer circumference of the second barrel member and protrudes at one axial end. The second barrel member protrudes at the other axial end. A bolt is inserted from one end where the first barrel member protrudes through the second barrel member out of an end face where the second barrel member protrudes. The first barrel member of the resin member is welded to the fuel tank. The bolt is inserted into a mounting hole of the heat insulation plate and securely fastened. A flange spreading diametrically is preferably formed on a protruding end face of the second barrel member.

Abstract: A plastic fuel tank is formed by welding together an upper plastic shell (1) having an upper closing wall (8) and a lower plastic shell (2) forming a bottom (7). The two plastic shells (1, 2) are produced by the injection molding method. In order to adhere to an exact distance between the upper closing wall (8) and the bottom (7), spacers (9) coming into abutment during the welding operation are provided in the fuel tank.

Abstract: An internal reinforcement structure of a plastic fuel tank resists deformation of opposing walls of the fuel tank and provides an integral, and directionally sensitive, stress relief feature when pre-determined forces are exceeded. The stress relief feature is contained within a fuel chamber of the fuel tank defined by the opposing walls. Each wall has an inward projecting indentation of the structure which engage one-another at their distal ends or bottom portions, preferably, via a welded plastic engagement area. The indentations have a consistent wall thickness which has a higher cross-sectional area than the stress relief feature causing the stress relief feature to tear as opposed to the tank walls thereby assuring fuel tank integrity.

Abstract: Process for the processing of a waste high density polyethylene (HDPE) in particulate form by extrusion-blow moulding, according to which the waste HDPE is extruded as a blend with a polyfunctional epoxide and the extrudate is subsequently subjected to a blow moulding operation.

Abstract: A method and system for freeze protecting liquid NOx reductants, preferably used in vehicle applications, wherein a liquid NOx reductant, carried onboard a vehicle exposed to cold weather conditions, is heated by existing thermal energy generated by fuel compression. The heated fuel heats a potentially frozen reductant and the liquid reductant is supplied to an exhaust gas pipe in front of a catalyst for reducing NOx on the surface of the catalyst and catalytically converted into environmentally safe nitrogen and water.

Abstract: A fuel tank and a fuel-filler tube, which maintain excellent corrosion-resistance over a long term even in a severely corrosive atmosphere, is made of a ferritic stainless steel sheet good of formability. The steel sheet, which has elongation of 30% or more after fracture by a uniaxial tensile test and minimum Lankford value (value-rmin) of 1.3 or more, is formed to a product shape, and paint is cathodically electrodeposited on a surface of the formed stainless steel sheet. The stainless steel sheet may be one coated with an Al or Zn plating layer. When the fuel tank or fuel-filler tube is fabricated by welding, Zn-rich paint is preferably applied to a welded part in prior to cathodic electrodeposition coating.

Abstract: A clip for attaching a component to a container. The clip has a generally tubular body including folds giving the clip a corrugated appearance. The clip and container are formed from similar plastic materials so that when the clip is placed in contact with a container having latent heat from formation, the exterior surface of the folds melts to the container to form a bond area. The folds also define a passageway in which the component is retained.

Abstract: A polymeric fuel tank having a first body joined to a second body is constructed having a substantially continuously barrier layer surrounding the tank. The first body has an inner surface terminating at a free edge and a first mating surface adjacent the free edge. A first barrier layer is fixed adjacent the inner surface of the first body. The second body has an inner surface terminating at a free edge and has a second mating surface adjacent to the first mating surface and the free edge of the second body to define a fuel cavity. A second barrier layer is fixed adjacent the inner surface of the second body. At least one weld joint joins the first mating surface to the second mating surface and the first barrier layer to the second barrier layer to provide the continuous barrier layer in the fuel tank.

Abstract: Liquid containers made from certain ethylene copolymers have been found to leak less, swell and wrap less than conventional plastic liquid containers. The invention therefore provides the use of an ethylene and at least one C3-10 &agr;-olefin copolymer having the following properties: i) MFR2=2-10; ii) MFR21/MFR2=15-20; iii) density—925-950 g/cm3; iv) molecular weight distribution Mw/MN=2.1-3.5 in the manufacture of a liquid container.

Abstract: A fuel delivery device including a closure element, which closes an opening of a fuel tank and has a cup-shaped receptacle, which opens toward the outside of the fuel tank, contains the fuel filter, and can be closed by a cover element, which can be detachably fastened to the closure element. An elastic sealing ring, which is clamped between the closure element and the cover element, seals the receptacle. In the vicinity of the sealing ring, the closure element has at least one opening via which the receptacle communicates with the interior of the fuel tank. When the cover element is fastened onto the closure element, the sealing ring, starting from a non-deformed original shape, is elastically deformed in such a way that it closes the at least one opening. When the cover element is detached from the closure element, the sealing ring returns to its original shape in which it unblocks the at least one opening.

Abstract: The present invention is directed to a fluid tank for carrying hazardous materials such as a automobile gasoline tank which is non flammable and flame resistant. More specifically, the present invention is directed to a fluid tank_having an outer layer of a polyolefin containing a non halogen char forming additive to prevent flammability.

Abstract: An adapter provides for mounting an object on plastic. The adapter comprises a body coupled with at least two feet. The feet are weldable to the surface of the plastic while the plastic is in a molten state. The adapter also includes a coupling mechanism coupled with the body. The coupling mechanism is operable to couple the object with the adapter.

Abstract: A fuel tank for a motor vehicle is fabricated from an austenitic stainless steel sheet having elongation of 50% or more after fracture by a uniaxial stretching test with a work-hardening coefficient of 4000N/mm2 or a ferritic stainless steel sheet having elongation of 30% or more after fracture with Lankford value of 1.3 or more. The stainless steel sheets are reformed to a complicated shape of a fuel tank without work flaws such as cracks or break-down. Excellent corrosion-resistance of stainless steel itself is maintained in the fabricated fuel tank. Consequently, the proposed fuel tank is used without diffusion of gasoline to the open air over a long term.

Abstract: The present invention involves a low permeation pinchoff connection at a pinchoff region having a pinchoff end between first and second formed sheets of a fluid tank. The low permeation pinchoff connection comprises a continuous inner polymeric layer at a pinchoff region having a pinchoff end between the first and second formed sheets. The connection further comprises an outer polymeric layer in side-by-side relationship with the continuous inner polymeric layer. The outer polymeric layer tapers at the pinchoff region to first and second outer polymeric ends at the pinchoff end separating the first and second outer polymeric ends. The connection further comprises a low permeation barrier layer disposed between the continuous inner polymeric layer and the outer polymeric layer. The low permeation barrier layer tapers with the outer polymeric layer at the pinchoff region to first and second barrier ends separated at the pinchoff end to determine a pinchoff gap.

Abstract: A fuel container with a wall of at least two wall shells which are separated at least partially from each other by an air gap between them. The dual shell wall structure helps to substantially improve the mechanical properties of the fuel container. Preferably, each wall shell consists of a plurality of layers of different polymeric or plastic materials. In a preferred embodiment of the invention a four layer co-extruded structure is provided; each shell comprises a layer of high density polyethylene (HDPE), a layer of filler material of treated, recycled plastics material referred to as “re-grind” and a vapor barrier layer of a plastic material substantially impermeable by hydrocarbons. The HDPE-layer may, be one surface layer of each wall shell and the vapor barrier layer is preferably the other surface layer of each wall shell. Depending on the material properties of the vapor barrier layer, an additional adhesive layer may also be necessary for connection with the adjacent layer.

Abstract: The invention concerns a fuel container of plastic material such as a motor vehicle fuel tank, having one or more welded seams as seam locations for the body of the container and/or as connecting or sealing seams between the container wall in the region of openings and closure elements or covers welded thereto. At least some of the welded seams are at least partially penetrated by a duct which extends in the longitudinal direction in the seam and which can be filled with air and vented.

Abstract: A fuel tank has a plurality of fuel system components therein and is formed by incorporating the fuel system components into the fuel tank as it is being formed. The fuel system components may be mounted on a carrier and then disposed with the carrier within a parison subsequently molded to form the fuel tank around the components and carrier. Desirably, all electrical, fuel and vapor lines may extend out of a single opening of the fuel tank to reduce openings in the formed fuel tank.

Abstract: A tank (1) comprises two half-shells (2, 3) moulded from plastics material and joined along respective edges or flanges (2a, 3a). These half-shells (2, 3) are shaped in such a way that their joining edges or flanges (2a, 3a) are in a concavity (4) in the tank (1).

Abstract: The invention concerns a motor vehicle fuel tank (1) comprising a fuel reserve chamber (4) further comprising a suction device supplied with fuel coming directly from a fuel filter and adapted to suck up fuel in at least a low suction point outside the chamber (4), and in delivering it into the chamber (4) at least in a high delivery point, located above the desired minimum level of fuel in the tank (4) and higher than the low suction point.

Abstract: A fuel tank generally comprises a tank body, a fuel inlet formed to an upper portion of the tank body, and a cap provided for the fuel inlet. The tank body is provided with a recessed portion recessed in a direction separating from at least one of a vehicle body frame and a vehicle body cover covering the frame so as to form a space therebetween as an air-flow passage. The air-flow passage is composed of, from a vehicle front side, an air introducing section, an air-flow separation section and a separated air-flow section which faces an opening of the intake system of the engine.

Abstract: The present invention is directed to an opening structure of a fuel tank having a fuel tank wall made of plastic layers including at least an outer layer, an inner layer and an intermediate layer, with an opening portion formed to be integral with the fuel tank wall. The opening structure includes a cylindrical portion extended from the fuel tank wall outward thereof to form the opening portion, an overlapping portion extended from an end of the cylindrical portion to enlarge the diameter of the opening portion and bent at a bent portion to form an outer surface parallel with an opening end surface of the opening portion, and a compressed portion with at least a portion of the overlapping portion compressed in a direction perpendicular to the opening end surface of the opening portion.

Abstract: An integral fuel tank fastener having a unitary fastener feature or hollow protuberance carried by and formed into a preferably blow molded multi-layer plastic fuel tank shell. The fuel tank shell preferably has a continuous intermediate layer, or permeation barrier, between continuous inner and outer layers in which the protuberance is formed without producing any discontinuities that could degrade the permeation integrity of the fuel tank. The hollow protuberance projects into a fuel chamber defined by the inner layer and has an enlarged head at its distal end. The outer layer defines a blind cavity of the hollow protuberance which substantially follows the contours of the opposite side. A female clip, independent of the fuel tank, preferably engages the protuberance about the inner layer of the shell.

Abstract: The present invention provides a hot-dip Al-plated steel sheet for fuel tanks excellent in air-tightness after welding and corrosion resistance subsequent to forming. The present invention provides, as concrete means, a hot-dip Al-plated steel sheet comprising a steel sheet comprising up to 0.003% of C, up to 0.03% of Si, up to 0.3% of Mn, up to 0.02% of P, up to 0.006% of N, up to 0.1% of Ti, Ti and Nb in a total amount of at least the atomic equivalent of (C+N) and up to 0.2%, 1 to 30 ppm of B, and the balance Fe and unavoidable impurities, and a plating layer comprising 2 to 13% of Si, and the balance Al and unavoidable impurities on the surface of the steel sheet, the steel sheet showing a total elongation of at least 45% after plating. Alternately, the hot-dip Al-plated steel sheet may have a chromate coating in an amount of 5 to 100 mg/m2 on the surface, and it may also have a resin coating on the top surface. As a result, the Al-plated steel sheet is excellent in elongation after Al plating.

Abstract: A pass-through device for internalized component fuel tanks provides passageways for communication between the interior chamber of the fuel tank and the exterior. The pass-through device includes a communicative passageway for a fuel supply line and a through opening for electrical connections, and may include additional communicative passageways for fuel return lines, and purge and fresh air inlets. The pass-through device includes a main body preferably composed of nylon. The main body is bonded to a mounting plate preferably composed of polyethylene. The mounting plate provides a circumferential surface for weldably sealing the pass-through device to a polymeric fuel tank.

Abstract: A one-piece integral rotomolded hydraulic reservoir includes a plastic container body defining a container cavity for receiving hydraulic fluid. An insertable baffle is positioned in the container cavity through an access manway formed in the container body and is removable therefrom. The container body includes holding members for positioning and holding the baffle in place.

Abstract: A fuel tank and a fuel-filler tube, which maintain excellent corrosion-resistance over a long term even in a severely corrosive atmosphere, is made of a ferritic stainless steel sheet good of formability. The steel sheet, which has elongation of 30% or more after fracture by a uniaxial tensile test and minimum Lankford value (value-rmin) of 1.3 or more, is formed to a product shape, and paint is cathodically electrodeposited on a surface of the formed stainless steel sheet. The stainless steel sheet may be one coated with an Al or Zn plating layer. When the fuel tank or fuel-filler tube is fabricated by welding, Zn-rich paint is preferably applied to a welded part in prior to cathodic electrodeposition coating.

Abstract: A fuel tank structure has a plurality of cylindrical tank main bodies (4), a piping (36) arranged to communicate the end portions of the tank main bodies 4 from one another and a block-shaped connector portion (35) provided at the outside of the end portion of the tank main body (4). The piping (36) couples the corresponding connector portions (35) to each other and is entirely disposed to the tank main body side with respect to an end surface of the connector portion (35), which is on the opposite side to the tank main body (4) with respect to the connector portion.

Abstract: A fuel tank structure for a vehicle using gaseous fuel, has a plurality of cylindrical tank main bodies communicating from one another. The plurality of cylindrical tank main bodies are disposed at a fuel tank mount portion in a state of being adjoined from one another.

Abstract: A rotomolded hydraulic reservoir includes a plastic container body defining a container cavity for receiving hydraulic fluid and forming a filter cavity in fluid communication with the container cavity. An integral baffle extends inwardly and is formed as part of an outer wall of the container body. The baffle controls the fluid flow pattern within the container cavity to provide deaeration and homogenization to the fluid.

Abstract: A double-wall fuel container of plastic material is composed of at least two shell portions which are welded together. The half-shell portions are each in the form of double-wall blow moldings, with a gap being kept free at least in a region-wise manner between the walls of the blow moldings.

Abstract: A method and apparatus for preventing vehicle instability from sloshing fuel and aiding in the structural strength of a vehicle fuel tank by using a vee-shaped baffle that is inserted into the warm fuel tank a predetermined distance and plastic welded inside the plastic fuel tank.

Abstract: A cover assembly for a fuel tank of a vehicle includes a cover adapted to close an opening in the fuel tank and a common vent port extending from the cover. The cover assembly also includes a plurality of valves attached to the cover and venting through the common vent port.

Abstract: The cover member is adapted to receive a fuel-containing cell for a vehicle, such as a stock car racing vehicle, and is configured to cover and fit snugly against substantially all of the surfaces of the fuel cell. The cover member comprises a plurality of layers of penetration-resistant, synthetic material, which is lightweight but high strength, flexible and, to an extent, stretchable, so that in the event of a penetration of the fuel cell by a moving object, such as debris caused by a vehicle crash, material in the vicinity of the penetration is drawn through the opening in the fuel cell with the object, preventing contact of the object and the exposed edges of the opening in the fuel cell.

Abstract: In a fuel tank (1) with a plug which is to be opened, in particular, during maintenance work, a plugging part (6) is fastened in a trough-like depression (2) of the wall of the fuel tank (1) by means of a nut (7). The nut (7) has a thread (9) intended for tapping into a bead (5) of the fuel tank (1). As a result, the fuel tank (1) can be manufactured particularly cost-effectively from geometrically simple parts.

Abstract: An attachment is fixed to a fuel tank made of a synthetic resin, and is formed of a primary molding portion and a hydrocarbon barrier layer. The primary molding portion is formed of a first material capable being welded to the fuel tank, and includes a hollow section to be inserted into fuel tank, and a flange formed on the hollow section to be connected to an outer surface of the fuel tank. The hollow section has a plurality of holes for allowing a molten resin material to flow therethrough when formed. The hydrocarbon barrier layer has a property of preventing permeation of hydrocarbon. The hydrocarbon barrier layer is formed on at least a part of an inner periphery of the cylinder section. A connection section is formed at the hollow section to have another member thereon.

Abstract: A fuel tank assembly comprises a fuel tank having a wall with an outer surface and an inner surface, an elongated single or multi-walled tubular body having a first open end and a second open end, the first open end extending outwardly through an opening in the tank wall, and the second open end extending inwardly into the tank and bonded to the tank wall along the periphery of the tank wall opening by an adhesive which bonds to low surface energy plastic materials, the adhesive providing a fuel vapor-tight seal at the interface between the tubular body and tank wall opening, the fuel tank and the tubular body having fuel barrier property.