Composite reinforced gas transport module
AssigneeNCF Industries, Inc.
InventorNorman C. Fawley
Life of this patent
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Abstract
A system is disclosed for the manufacture and use of a composite reinforced gas transport module (“GTM”). A metal shell of the system is wrapped circumferentially with a composite reinforcement, the composite reinforcement is post cured and the metal shell is then pressurized beyond the yield point of its material to load the composite reinforcement. The system is then brought to ambient temperature. The expansion deformation of the metal shell due to pressurization beyond the yield point results in a loading of the metal shell by the cured composite reinforcement at ambient temperature. Thus, a negative hoop stress condition is created in the metal shell at ambient to reduce the hoop stresses created during subsequent pressured operation.
Claims10
A method comprising:
- wrapping a composite reinforcement circumferentially around a pressure containment vessel;
- applying heat to cure the composite reinforcement;
- pressurizing the pressure containment vessel beyond the elastic region of the pressure containment vessel material to load the composite reinforcement;
- and
- depressurizing the pressure containment vessel.
A method comprising:
- priming a metallic pressure containment vessel;
- wrapping a composite reinforcement circumferentially around the metallic pressure containment vessel;
- pressurizing the metallic pressure containment vessel beyond the elastic region of the metallic containment vessel to load the composite reinforcement;
- applying heat to the composite reinforcement;
- and
- depressurizing the metallic pressure containment vessel.
An apparatus comprising:
- a composite reinforcement wrapped circumferentially around a metallic pressure containment vessel;
- and
- a water pressure source coupled to the pressure containment vessel to pressurize the pressure containment vessel to a pressure beyond the yield point of the pressure containment vessel;
- wherein the water provided to the pressure containment vessel is at a temperature below a heat distortion temperature of a resin in the composite reinforcement.
Dependencies are inferred from the claim text.