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US 9,074,685 B2Granted
Extruded tube welded vessel liner with injection molded end caps
AssigneeGM Global Technology Operations LLC
InventorsLudger Strack, Markus Lindner, Holger Guckes, Angela Fröhlich
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Abstract
A pressure vessel for storing a fluid is disclosed. The pressure vessel includes a vessel liner forming a hollow tube and including a plurality of layers with an aperture formed therein, wherein at least one of the layers is a barrier layer and an end cap coupled to the vessel liner, wherein the end cap has a plurality of layers, and wherein at least one of the layers of the end cap is a barrier layer.
Claims13
A pressure vessel for storing a fluid, the pressure vessel comprising:
- a vessel liner forming a hollow tube and including a plurality of tubular layers with an aperture formed therein, the plurality of tubular layers including an inside layer, a barrier layer contacting the inside layer, and an outside layer contacting the barrier layer;
- an end cap coupled to the vessel liner, wherein the end cap has a plurality of layers, the plurality of layers including an inside layer aligned with the inside layer of the vessel liner at a coupling edge, a barrier layer contacting the inside layer of the end cap and aligned with the barrier layer of the vessel liner at the coupling edge, and an outside layer contacting the barrier layer of the end cap and aligned with the outside layer of the vessel liner at the coupling edge;
- and
- a boss having a neck portion, a shoulder portion, and a passage extending through both the neck portion and the shoulder portion, the neck portion including a coupling element, the shoulder portion integrally formed with the end cap, the outside layer of the end cap divided to substantially surround the shoulder portion and contact all of the boss except the neck portion;
- wherein the plurality of layers of the end cap extend about the shoulder portion and into the passage and end in the passage at a coupling element formed in the passage.
2 more elements
A pressure vessel for storing a fluid, the pressure vessel comprising:
- a vessel liner forming a hollow tube and including a plurality of tubular layers with an aperture formed therein, the plurality of tubular layers including an inside layer, a barrier layer contacting the inside layer, and an outside layer contacting the barrier layer;
- an end cap coupled to the vessel liner, wherein the end cap has a plurality of layers, the plurality of layers including an inside layer aligned with the inside layer of the vessel liner at a coupling edge, a barrier layer contacting the inside layer of the end cap and aligned with the barrier layer of the vessel liner at the coupling edge, and an outside layer contacting the barrier layer of the end cap and aligned with the outside layer of the vessel liner at the coupling edge;
- and
- a boss having a neck portion, a shoulder portion, and a passage extending through both the neck portion and the shoulder portion, the neck portion including a coupling element, the shoulder portion integrally formed with the end cap, the outside layer of the end cap divided to substantially surround the shoulder portion and contact all of the boss except the neck portion;
- wherein the plurality of layers of the end cap extend about the shoulder portion and into the passage and end at a coupling element formed in the passage, and at least one of the vessel liner and the end cap includes an annular channel and the other of the vessel liner and the end cap includes an annular rib, and
- wherein the barrier layer of the end cap is overlapped by the outside layer of the end cap at the coupling edge.
3 more elements
Dependencies are inferred from the claim text.