Method for making a tank containing compressed gas and resulting tank
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United States of America Patent
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N/A
Issued Date -
Dec 2, 2004
app pub date -
Jan 26, 2004
filing date -
Jul 31, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a manufacturing process for a compressed gas tank, for example natural gas intended for a motor vehicle, of the type incorporating a metallic inner envelope 1 and an outer envelope 8 of a composite material. The metallic envelope 1 is made from stainless steel sheets comprising a cylindrical trunk 2 and two hemispherical or elliptical end caps 3, 4 welded together and in that an outer envelope 8 is made around said inner envelope by filament winding of a composite material. The inner envelope 1 has a thickness of around a mm. The filament winding is made using carbon filament that may be associated with other fibres, impregnated with an epoxy type resin. Application to CNG tanks for vehicles.
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