Filler tube for a fuel tank
AssigneeKautex Textron GmbH & Co. KG
InventorsDieter SCHMITZ, Daniela SELIG, Claus KRUEGER, Harald LORENZ
Life of this patent
Estimating the term…
Abstract
The invention relates to a filler tube for a fuel tank, having a tube portion made of plastic material and a tubular adapter, which is connected to the tube portion, for coupling the filler tube to the fuel tank, wherein a lateral surface of the adapter is integrally bonded, in particular welded, to a lateral surface of the tube portion, wherein the adapter and the tube portion overlap in the region of the integrally bonded connection.
Claims17
A filler tube for a fuel tank, comprising:
- a tube portion formed of plastic;
- and
- a tubular adapter which is connected to the tube portion and which couples the filler tube to the fuel tank,
- wherein a lateral surface of the adapter is connected to a lateral surface of the tube portion by an integrally bonded connection,
- wherein the adapter and the tube portion are arranged so as to overlap in a region of the integrally bonded connection.
A method for producing a filler tube for a fuel tank, comprising:
- a) providing a tube portion formed of plastic by
- extruding a hose formed of plastic which is provided for formation of the tube portion by blow molding;
- introducing the hose into a cavity of a tool for the blow molding;
- pre-forming the tube portion by closing the tool and/or applying an internal pressure to the hose interior, wherein the hose lies, at least in portions, against the tool;
- b) providing a tubular adapter which is provided for the connection of the filler tube to the fuel tank;
- c) connecting the adapter to the tube portion by a connecting device;
- wherein, in method step c),
- a lateral surface of the adapter is connected to a lateral surface of the tube portion by an integrally bonded connection, and
- the adapter and the tube portion are arranged so as to overlap in the region of the integrally bonded connection.
An apparatus for producing a filler tube for a fuel tank, comprising:
- a tool which has a cavity for the blow molding of a tube portion from plastic;
- and
- a receptacle for holding a tubular adapter which is provided for the coupling of the filler tube to the fuel tank,
- a connecting device for forming an integrally bonded connection of the adapter to the tube portion,
- the connecting device configured to connect the lateral surface of the adapter to a lateral surface of the tube portion by the integrally bonded connection,
- wherein the adapter and the tube portion are arranged so as to overlap in a region of the integrally bonded connection.
Dependencies are inferred from the claim text.