Inergy Automotive Systems Research (societe Anonyme)

Inergy Automotive Systems Research

Plastic Omnium Advanced Innovation and Research

Hervé Lemoine

Bjorn Criel

Fabrice Laborde

Nadja Walling

Frédéric Jannot

Method for producing a fuel tank provided with internal accessories and having a wall made of plastic made in a single piece by moulding a split parison or a parison in at least two parts, said method comprising the following steps: a) the parison is introduced in the heat-softened state into a mould comprising dies; b) a core on which the accessories are placed is introduced inside the parison; c) the parison is pressed onto the dies of the mould; d) the accessories are fastened to the parison with the aid of the core in an ideal layout; e) the core is withdrawn and the mould is closed; f) the tank is moulded from the parison; and g) the tank is removed from the mould.

Method for producing a fuel tank with internal accessories

Method for fastening an accessory to a wall of a plastic fuel tank, this fastening taking place by snap-riveting using a tool at the same time as the tank is manufactured by molding, the accessory being, for this purpose, provided at at least one of its fastening points with an orifice through which the snap-riveting is carried out. According to the invention, a concave relief at least partially surrounds this orifice, the relief having a size and shape suitable for being able to cooperate with an excrescence of the tool during the snap-riveting.

Method for fastening an accessory to a plastic fuel tank

Method for producing a fuel tank provided with internal accessories and having a wall made of plastic made in a single piece by molding a split parison or a parison in at least two parts, said method comprising the following steps: a) the parison is introduced in the heat-softened state into a mould comprising dies; b) a core on which the accessories are placed is introduced inside the parison; c) the parison is pressed onto the dies of the mould; d) the accessories are fastened to the parison with the aid of the core in an ideal layout; e) the core is withdrawn and the mould is closed; f) the tank is molded from the parison; and g) the tank is removed from the mould.

Method for producing a fuel tank provided with internal accessories

Method for manufacturing a plastic fuel tank by moulding a parison in which, during the moulding operation, a pipe () is attached to the parison at at least two points, the said pipe being deformable.

Growing community of inventors

Tracy-le-Mont, France

Hervé Lemoine