Abstract: A valve including: a chamber configured to extend at least partly into a tank and to be connected via an upper venting aperture to a venting circuit; and a shut-off point defining a single maximum filling level within the tank, located away from the chamber, the shut-off point being in fluid communication with the chamber via a conduit, wherein the conduit includes a venting tube.

Abstract: A method for manufacturing a vehicle pressure accumulator, in which a thermoplastic parison is used to form an enclosure around a chamber by applying at least one portion, at least partially molten, of the parison onto at least one portion of the chamber, to attach the parison to the chamber.

Abstract: It is proposed a process for fastening an accessory to the interior of a blow-molded tank, the tank having a plastic wall produced from a parison, the accessory comprising a body having at least one attaching portion projecting radially from the body. The process comprises the steps of: a) introducing the accessory and the parison in a molten state into a mold so that the accessory is surrounded by the parison, the mold comprising cavities, at least one cavity being equipped with at least one movable insert configured to fold locally some of the molten parison on the attaching portion; b) contacting the parison with the attaching portion; c) moving forward the insert and folding locally some of the molten parison on the attaching portion; d) closing the mold by moving the mold cavities to a final closing position and inflating the parison to form the blow-molded tank; e) moving backwards the insert; and f) opening the mold.

Abstract: A valve including: a chamber configured to extend at least partly into a tank and to be connected via an upper venting aperture to a venting circuit; and a shut-off point defining a single maximum filling level within the tank, located away from the chamber, the shut-off point being in fluid communication with the chamber via a conduit, wherein the conduit includes a venting tube.

Abstract: It is proposed a process for fastening an accessory to the interior of a blow-molded tank, the tank having a plastic wall produced from a parison, the accessory comprising a body having at least one attaching portion projecting radially from the body. The process comprises the steps of: a) introducing the accessory and the parison in a molten state into a mould so that the accessory is surrounded by the parison, the mould comprising cavities, at least one cavity being equipped with at least one movable insert configured to fold locally some of the molten parison on the attaching portion; b) contacting the parison with the attaching portion; c) moving forward the insert and folding locally some of the molten parison on the attaching portion; d) closing the mould by moving the mould cavities to a final closing position and inflating the parison to form the blow-molded tank; e) moving backwards the insert; and f) opening the mould.

Abstract: A method for venting of a liquid tank with a valve, a primary compartment and a secondary compartment which are connected together via a bridge. The valve includes a chamber provided with a cover, which extends at least partly into the tank and is connected via an upper venting aperture to a venting circuit. A first device monitors a level of liquid in the primary compartment. A second device monitors a level of liquid in the secondary compartment. The valve configured to be closed when the first device detects that the level of liquid in the primary compartment is equal to or higher than a first predetermined filling level, and the second device detects that the level of liquid in the secondary compartment is equal to or higher than a second predetermined filling level.

Abstract: A method for venting of a liquid tank with a valve, a primary compartment and a secondary compartment which are connected together via a bridge. The valve includes a chamber provided with a cover, which extends at least partly into the tank and is connected via an upper venting aperture to a venting circuit. A first device monitors a level of liquid in the primary compartment. A second device monitors a level of liquid in the secondary compartment. The valve configured to be closed when the first device detects that the level of liquid in the primary compartment is equal to or higher than a first predetermined filling level, and the second device detects that the level of liquid in the secondary compartment is equal to or higher than a second predetermined filling level.

Abstract: Method for simulating the ventilation of a liquid tank (1,101), in particular a liquid fuel tank of a vehicle, comprising an internal volume (3,103), a wall (2,102) that defines said internal volume (3,103), and a set of valves (4a,4b;104) for ventilation of the internal volume, said method comprising the calculation of a maximum liquid volume that can be ventilated (14,114) for a maximum angle of inclination of the tank (1,101).Such method also comprises the calculation of at least one maximum liquid volume that can be ventilated (14,114) for at least one intermediate angle of inclination below said maximum angle, but above zero.

Abstract: A fuel system for an internal combustion engine and including a fuel tank, a filler tube for filling the tank, and a pump for supplying the engine with fuel. The pump is fastened to the filler tube. A fuel trap is integrated to the filler tube, the fuel trap lying at the bottom of the fuel tank and including the fuel pump inside or on top of it.