Abstract: The present invention related to a connecting device (1) between a liquid tank made of plastic material (2) and a Liquid Delivery Module (3) on board of a vehicle.

Abstract: A fuel tank having two opposite wall portions and at least one reinforcing element connecting these two wall portions, such reinforcing element comprising at least two parts linked by at least one rotating link.

Abstract: A gauging method for a plastic fuel tank mounted on a hybrid vehicle, the tank including a reservoir including a gauge for measuring an amount of fuel in the tank, the method including: measuring the amount of fuel in the tank using the gauge; estimating deformation of the tank using at least one sensor onboard the vehicle; and correcting the amount measured by the gauge based on the estimated deformation.

Abstract: A process for manufacturing a fuel tank, including: inserting a plastic parison including two distinct parts into an open two-cavity mold; inserting a core inside the parison, the core including two parts of a reinforcing element capable of securing two different locations inside the parison; pressing the parison firmly against the mold cavities; fixing the two reinforcing element parts at the two locations of the parison using the core; withdrawing the core; closing the mold, bringing its two cavities together to grip the two parison parts around their periphery to weld them together; injecting a pressurized fluid into the mold and/or creating a vacuum behind the mold cavities to press the parison firmly against the mold cavities; opening the mold and extracting the tank; making an opening into the tank wall; and through the opening, putting at least a third reinforcing element part to link/connect the two first parts together.

Abstract: A fuel tank having two opposite wall portions and at least one reinforcing element connecting these two wall portions, such reinforcing element comprising at least two parts linked by at least one rotating link.

Abstract: A method for manufacturing a plastic fuel tank including lower and upper walls and at least one reinforcing element connecting these walls, includes molding the tank from molten plastic sheets which are optionally resulting from cutting a tubular parison. The method includes molding the molten plastic sheets in a mold including cavities and a core. The reinforcing element includes a hollow plastic pillar having an opening in its lower part and an opening in its upper part, the openings being situated at locations to allow, respectively, a filling of the pillar and a degassing thereof. At least one part of the pillar is a constitutive element of an accessory that has an active role in the tank. The pillar, or at least one part of an attachment structure for this pillar, is attached to the upper and lower walls of the tank during the molding thereof using the core.

Abstract: A fuel tank having two opposite wall portions and at least one reinforcing element connecting these two wall portions, such reinforcing element comprising at least two parts linked by at least one rotating link. A method for manufacturing such tank.

Abstract: A ventilation device including: a first enclosure including a first passage configured to be connected to a canister outlet and the atmosphere, and a normally closed shutter device configured to open to release the first passage; a second enclosure including a second passage configured to be connected to the canister inlet and a fuel tank, and a normally open shutter device configured to close to shut the second passage, the second passage being separate from and not in communication with the first passage; and a combined pressure/vacuum relief valve or OPR and UPR valve pair situated in or fastened to a bypass of the first passage configured to establish a connection between ends of the first passage when the shutter device is closed and when there is over- or under-pressure in the ends. A fuel system can include the device and a hybrid vehicle can include the fuel system.

Abstract: Process for reinforcing a plastic fuel tank comprising a wall defining an internal closed volume, according to which a structural member is fixed to the wall of the tank outside the closed volume, in at least two points being located in two different portions of said wall where a deflection induced when the tank is filled with fuel, is low; and said structure having at least one contact point with the tank wall in a portion of said wall where the deflection is high.

Abstract: A gauging method for a plastic fuel tank mounted on a hybrid vehicle, the tank including a reservoir including a gauge for measuring an amount of fuel in the tank, the method including: measuring the amount of fuel in the tank using the gauge; estimating deformation of the tank using at least one sensor onboard the vehicle; and correcting the amount measured by the gauge based on the estimated deformation.

Abstract: A ventilation device including: a first enclosure including a first passage configured to be connected to a canister outlet and the atmosphere, and a normally closed shutter device configured to open to release the first passage; a second enclosure including a second passage configured to be connected to the canister inlet and a fuel tank, and a normally open shutter device configured to close to shut the second passage, the second passage being separate from and not in communication with the first passage; and a combined pressure/vacuum relief valve or OPR and UPR valve pair situated in or fastened to a bypass of the first passage configured to establish a connection between ends of the first passage when the shutter device is closed and when there is over- or under-pressure in the ends. A fuel system can include the device and a hybrid vehicle can include the fuel system.

Abstract: Ventilation valve for a liquid tank comprising: an housing comprising a side wall provided with ventilation openings, a cover provided with a ventilation aperture which may be connected to a venting circuit of the tank, and a base pierced with at least one drainage aperture; and a float capable of closing off the ventilation aperture, such float being able to slide vertically inside the housing depending on the level of liquid therein, the valve also comprising a drainage chamber located underneath the housing in which the valve slides, the chamber also comprising at least one drainage aperture that is not aligned with the drainage aperture of the base of the housing.

Abstract: A plastic fuel tank including an upper wall, a lower wall and at least two compartments, such compartments being established by a dividing wall including a part of the tank upper and lower walls, this dividing wall having at least opening enabling free flow of liquids between the at least two compartments and at least opening enabling free flow of vapors between the at least two compartments, such openings occupying less than 80% of the dividing wall, the at least 20% remaining of the dividing wall being constituted by at least one kiss point formed by welding together a multiplicity of contact points of the upper and lower walls.

Abstract: A process for manufacturing a fuel tank, including: inserting a plastic parison including two distinct parts into an open two-cavity mold; inserting a core inside the parison, the core including two parts of a reinforcing element capable of securing two different locations inside the parison; pressing the parison firmly against the mold cavities; fixing the two reinforcing element parts at the two locations of the parison using the core; withdrawing the core; closing the mold, bringing its two cavities together to grip the two parison parts around their periphery to weld them together; injecting a pressurized fluid into the mold and/or creating a vacuum behind the mold cavities to press the parison firmly against the mold cavities; opening the mold and extracting the tank; making an opening into the tank wall; and through the opening, putting at least a third reinforcing element part to link/connect the two first parts together.

Abstract: Liquid tank venting system comprising a chamber that is inside the tank and that is equipped with a drainage device that comprises at least one opening made in the chamber and an elastomer-based non-return valve capable of sealing/freeing this opening, according to which this non-return valve is forced into a position for leaktight closure of the opening via a specific device starting from a certain liquid level in the tank.

Abstract: A fuel tank having two opposite wall portions and at least one reinforcing element connecting these two wall portions, such reinforcing element comprising at least two parts linked by at least one rotating link. A method for manufacturing such tank.

Abstract: A plastic fuel tank comprising un upper wall, a lower wall and at least two compartments, such compartments being established by a dividing wall comprising a part of the tank upper and lower walls, this dividing wall having at least one communication means enabling free flow of liquids between at least two compartments and at least one communication means enabling free flow of vapors between at least two compartments, such communications means occupying less than 80% of the dividing wall, the at least 20% remaining of the dividing wall being constituted by at least one kiss point formed by welding together a multiplicity of contact points of the upper and lower walls.

Abstract: Valve for the venting circuit of a liquid tank, the valve comprising a chamber which includes openings that allow liquid to penetrate into the chamber above a certain level in the tank and/or in the event of waves in the tank or the tank being turned upside down, a cover for the chamber including an aperture that is susceptible to open into the venting circuit of the tank, and a float comprising a body and a needle that close off the aperture, the float being able to slide vertically inside the chamber depending on the level of liquid therein, the needle of the float being frustoconical-shaped and based on an elastomeric material.

Abstract: Process for reinforcing a plastic fuel tank comprising a wall defining an internal closed volume, according to which a structural member is fixed to the wall of the tank outside the closed volume, in at least two points being located in two different portions of said wall where a deflection induced when the tank is filled with fuel, is low; and said structure having at least one contact point with the tank wall in a portion of said wall where the deflection is high.

Abstract: Valve for the ventilation circuit of a liquid tank, comprising: a) a chamber comprising a base, a side wall and a cover; b) at least two independent ventilation orifices in the chamber cover connecting the chamber to the venting circuit; c) at least one orifice in the chamber side wall connecting the chamber to the inside of the tank; d) at least two independent concentric floats, each comprising an apex capable of sealing one of the ventilation orifices, each being able to slide vertically inside the chamber depending on the liquid level in the chamber and to rest on the chamber base when the chamber is empty; one of the floats being calibrated so as to seal one of the ventilation orifices at one liquid level L1 in the tank and the other float being calibrated so as to seal the other ventilation orifice at a level L2 above L1.