Abstract: A vapour recovery system recovers vapour coming from a vehicle tank. The system includes a valve that is positionable in a closed position, an open position creating a passageway with a first size, and one or more intermediate positions each creating a passageway with a size smaller than the first size. The system also includes an electronic controller to control an actuator to position the valve in a sequence of positions over time. The sequence includes at least one of the intermediate positions during a time period larger than 1 second. The valve is arranged in a line of the vapour recovery system between a vapour outlet of the vehicle tank and the atmosphere. The actuator is a stepper-motor based linear actuator. The controlling includes selecting at least one intermediate position, and the selection includes selecting a number of steps to be set from a predetermined reference position.

Abstract: A method for controlling a pressure inside a fuel tank system on board a vehicle, the fuel tank system having a fuel tank and a venting circuit having at least one controllable pressure relief valve, the vehicle having a source of energy adapted to activate said at least one pressure relief valve so as to move it from a closed position to a pressure relief position. The method entails: detecting a key off event indicative of the vehicle shut-down; determining an amount of energy available at the source of energy; starting at least one pressure relief operation by verifying whether the amount of energy available is lower than a first predetermined threshold amount and, if the verification is positive, activating the at least one pressure relief valve; and terminating the at least one pressure relief operation.

Abstract: It is proposed a method for detecting a malfunction of a dual-sensing system for sensing a fluid mixture stored in a tank of a vehicle, the dual-sensing system being able to provide values of two physical quantities, i.e.

Abstract: A method for assembling a tank, including: providing a plastic first shell, a plastic second shell with an opening, and at least one connecting member with a plastic end part configured to be arranged in or around the opening, the first and second shell delimiting an internal volume of the tank, and the connecting member being dimensioned for connecting the first and second shell in the internal volume of the tank; welding a circumference of the first shell to a circumference of the second shell; arranging the end part in or around the opening; and connecting the end part of the connecting member to a wall part of the second shell by heating an external area of the second shell surrounding the opening and/or by heating the end part of the connecting member.

Abstract: The invention relates to a vehicle system for injecting an aqueous solution, said vehicle system comprising: a tank (500) for storing an aqueous solution; an injection system (300) configured for injecting aqueous solution from the tank (500) in an injection zone (Z) in the vehicle; and a UV light decontamination device (700) configured for decontaminating the aqueous solution stored in the tank (500) by emitting UV light.

Abstract: A tank for storing an internal combustion engine exhaust gas liquid additive, the tank including a wall defining an internal volume, an electrical component located in the internal volume, and at least one electric cable configured to connect the electrical component to a voltage source outside the tank, at least one portion of the electric cable being inserted into an intermediate part connected to a base plate mounted over an opening in the wall, the base plate incorporating a casing mounted leaktight around an orifice in the base plate. The intermediate part is fastened by a quick-connect coupling including an electrical connector to which the electric cable is connected leaktight with aid of a seal and that emerges from the orifice in the base plate to outside the tank. The seal is inserted between the intermediate part and the connector and/or into a housing of the intermediate part.

Abstract: A process for manufacturing a diesel tank or filler pipe by an extrusion-blow molding machine configured to manufacture a gasoline tank or filler pipe. The extrusion-blow molding machine includes a coextrusion head including at least one extruder configured to provide during a first period of time a first material that is a barrier to liquids and/or gases, such that during the first period of time the coextrusion head produces a first multilayer parison from which the gasoline tank or filler pipe can be manufactured. The extruder is further configured to provide during a second period of time a second material distinct from the first material, such that during the second period of time the coextrusion head produces a second multilayer parison from which the diesel tank or filler pipe can be manufactured.

Abstract: Determining the thermodynamic state of fuel includes opening the venting connection to release the tank pressure while monitoring the derivative pressure (dP/dt), closing the venting connection when one of the following conditions is met, the derivative pressure (dP/dt) is lower than a predetermined threshold DP1 or the opening time ?t1 reaches a predetermined value, if the closing of the venting connection occurs when the opening time ?t1 reaches the said predetermined value, determining that the fuel is boiling and aborting the method if the closing of the venting connection occurs when the derivative pressure (dP/dt) is lower than the said threshold DP1, measuring an initial tank pressure at the closing of the venting connection, measuring the final tank pressure after a closure time ?t2, calculating the pressure variation (?P/?t2), comparing the pressure variation (?P/?t2) with a first threshold PV1, if the pressure is lower then aborting the method.

Abstract: A method for assembling a tank including: providing a first shell and a second shell; putting edges of the first and second shells into contact with each other and mutually connecting the edges; providing the first shell with a first connecting member extending inwardly from an inner surface of the first shell, the first connecting member including a hole; and after the edges of the first and second shells are put into contact with each other, connecting the first connecting member to the second shell by inserting a pin shaped element through a hole in the second shell and the hole in the first connecting member.

Abstract: It is proposed a pressure vessel comprising a body and a tape-based reinforcement structure arranged onto the body, the tape-based reinforcement structure comprising: a primary tape arranged in a circumferential manner onto the body; a secondary tape arranged in a non-circumferential manner onto the body, at least one portion of the secondary tape being attached to the primary tape.

Abstract: A ventilation flow rate regulator for a pressurised tank of a vehicle. The regulator includes a body including a gas inlet and a gas outlet, and at least one restrictor mounted movably relative to the body. The restrictor is mounted to reduce a cross-section of at least one path of a gas flow proceeding from the inlet to the outlet, when a flow rate at the inlet is greater than a predetermined threshold. The regulator is arranged so that the cross-section remains non-zero irrespective of a flow rate.

Abstract: The invention relates to a pump (2) intended to pump an additive in an SCR system for a vehicle. The pump is configured to rotate in a first direction of rotation in order to convey additive stored in a tank towards an injector via an injection channel. The pump includes a chamber (23) which houses a gear system (22). The chamber (23) is in fluid communication with the tank and the injection channel via an inlet channel (24) and an outlet channel (25) respectively. The pump is such that the inlet channel and the outlet channel are arranged so that after draining the injection channel, the chamber collects and retains the additive.

Abstract: This invention relates to a reinforcement structure made of plastic material for plastic vehicle tank. The reinforcement structure comprises a first portion comprising at least one weak section and at least one strong section, which are designed so that said weak section breaks before said strong section, when said first portion is under mechanical stress, said reinforcement structure also comprises at least one second portion designed to reduce the slosh noise, said second portion extends from the strong section.

Abstract: A method for manufacturing a hollow body, typically a tank, from a plastic material. The method includes molding a preform into shells in a molding tool; joining an insert to an inner surface of a shell of said shells, the insert defining a sub volume within the hollow body to be made; joining together the shells to form the hollow body by closing the molding tool and applying a main pressure to a main volume enclosed by the shells. It is proposed to apply a sub pressure to the sub volume while applying the main pressure to the main volume, such that a pressure difference between the main volume and the sub volume is bigger than 0.20 bar (P1??P2?>0.20 bar) and smaller than 3.00 bar (P1??P2?<3.00 bar).

Abstract: The invention relates to a pressure vessel system comprising a pressure vessel for storing a gas under pressure, at a potential leakage interface of the pressure vessel, one or more gas sensitive parts configured to undergo a modification when the gas passes along the potential leakage interface; said leakage interface being an interface within the pressure vessel; and one or more detection modules configured to detect a modification of the one or more gas sensitive parts. The invention also relates to a connection assembly comprising a first connection part and a second connection part, said first and second connection part being configured to realize a gas tight connection; one or more gas sensitive parts arranged at a connection interface between the first connection part and the second connection part, and one or more detection modules configured to detect a modification of the one or more gas sensitive parts.

Abstract: A valve apparatus for use in a liquid tank, the valve apparatus including a casing defining a main chamber, the main chamber having at least one inlet orifice and at least one outlet orifice; a float including a closure element, the float being movable inside the main chamber between a first position and a second position in which the at least one outlet orifice is closed off by the closure element; a weight control system configured for controlling the weight of the float by transferring a load in and out from the float, such that the weight of the float in the second position is lower than the weight of the float in the first position.

Abstract: A method is proposed for detecting the level of a fluid in a tank by means of a capacitive probe, the probe comprising a column of capacitive elements, each capacitive element being associated with a given level in the tank. The method comprises the following steps consisting in, for each capacitive element: obtaining a value representative of the capacitance of the capacitive element; obtaining a compensation value depending on a piece of temperature information; calculating a compensated value from the value representative of the capacitance of the capacitive element and from the compensation values; detecting the presence of the fluid at the level associated with the capacitive element, by comparing the compensated value to a preset detection threshold.

Abstract: A method for manufacturing a fuel tank or filling pipe including a wall made of thermoplastics material and a fibrous reinforcement over at least part of the surface thereof, the method including: heating the fibrous reinforcement to bring the fibrous reinforcement into an at least partially molten state; introducing the heated fibrous reinforcement, and the wall in at least partially molten state, into a mold; and welding the fibrous reinforcement to the wall using pressure of a gas which inflates the wall and presses the heated fibrous reinforcement firmly against the wall in the molten state.

Abstract: The invention relates to a tank (1) for storing a liquid, comprising a wall (10) made of plastic and a device for stopping the filling of said tank (1) with a liquid at a maximum fill level, this device extending inside the tank (1) and comprising at least one opening (71) of which the position inside the tank (1) fixes the said maximum fill level. The device that stops the filling of this tank (1) comprises a first part formed with the wall (10) and a second part which is fixed hermetically to the first part.

Abstract: A valve apparatus for use in a liquid tank, includes a casing, an extractor, and a float. The casing defines a main chamber, the main chamber having an inlet orifice and at least one outlet orifice. The extractor includes at least one wall member extending substantially across the main chamber and being adapted for extracting droplets present in a vapour stream coming from the liquid tank and entering the main chamber via the inlet orifice. The float includes a closure element capable of closing off the outlet orifice(s), the float being slidably mounted along the at least one wall member.