Compressed gas tank and method for producing same
AssigneeDaimler AG
InventorAndreas Knoop
Life of this patent
Estimating the term…
Abstract
A compressed gas tank (1) made from carbon fibre materials, which has a filling and removal neck, and a method for the production thereof, with the following steps: providing a fusible core, which forms an interior of the compressed gas tank (1), wrapping the core with at least one carbon fibre bandage and impregnating the carbon fibres with a curable polymer matrix material, thereby providing a preform of the compressed gas tank (1), consolidating the polymer matrix material of the preform and obtaining the carbon fibre composite compressed gas tank (1), and liquefying the core material by melting, and removing the liquid core material from the filling and removal neck.
Claims10
-9. (canceled)
A method for the production of a gas tank (1) for a compressed gas, the tank made from carbon fibre materials, which has a filling and removal neck, comprising the following steps:
- providing a meltable core, which forms an inner shape of the compressed gas tank (1), wherein when providing the meltable core, providing a support structure made from struts in the core, or spokes (3) made from carbon fibre material, wherein the free ends of the struts or spokes (3) protrude over a surface of the core that is to be wrapped,
- wrapping the core with carbon fibres and generating at least one carbon fibre bandage, and impregnating the carbon fibres with a curable polymer matrix material, thereby providing a preform of the compressed gas tank (1), and winding the protruding free ends of the struts or spokes (3), then
- consolidating the polymer matrix material of the preform and obtaining the carbon fibre composite compressed gas tank (1), and during the consolidation, fixing the free ends in the carbon fibre composite bandage,
- liquefying the core material by melting, and removing the liquid core material from the filling and removal neck, and
- leaving the support structure (3) behind after the liquefaction and removal of the liquid core material in the compressed gas tank (1).
A gas tank (1) for a compressed gas, the tank having a filling and removal neck, produced according the method of claim 1, wherein a wall (2) of the compressed gas tank (1) consists of a carbon fibre composite material layer and is free from a liner layer on the inner wall, wherein the carbon fibre composite material layer is formed by a carbon fibre bandage made from wrapped carbon fibres and wherein a support structure made from struts or spokes (3) made from carbon fibre material is arranged in the interior of the compressed gas tank (1), wherein the distal strut or spoke ends are wound into the carbon fibre bandage and are received in a polymer matrix of the carbon fibre composite material layer that forms the wall (2) of the compressed gas tank (1).
Dependencies are inferred from the claim text.