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US 2015/0316209 A1Published application
Pressure Vessel With High Tension Winding to Reduce Fatigue
AssigneeBlue Wave Co S.A.
InventorsFrancesco NETTIS, Brian SPENCER, Zachary SPENCER, Vanni Neri TOMASELLI
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Abstract
This invention relates to a pressure vessel that is wrapped with a high-tension winding that prevents or ameliorates the effects of fatigue due to cyclic pressurizing and de-pressurizing of the vessel.
Claims17
A pressure vessel comprising:
- a metal cylindrical section having an inside diameter and a thickness wherein the thickness is from 1/100 to 1/1000 of the inside diameter;
- and
- a filamentous material that is hoop-wound, isotensoidally-wound, or both hoop-wound and isotensoidally-wound around substantially the entire cylindrical section at a tension of about 70% to about 99% of the compressive yield strength of the metal of which the cylindrical section is fabricated.
A method of preventing or reducing fatigue in a pressure vessel having a metal cylindrical section, comprising:
- hoop-winding, isotensoidally-winding, or hoop-winding and isotensoidally-winding substantially the entire cylindrical section with a filamentous material at a tension of about 70% to about 99% of the compressive yield strength of the metal of which the cylindrical section is fabricated, wherein:
- radial force generated within the cylindrical section exerted by a pressurized fluid contained in the pressure vessel is substantially absorbed by the filamentous material and not the metal of the cylindrical section.
Dependencies are inferred from the claim text.