Lightweight cryogenic-compatible pressure vessels for...

F - Mech Eng,Light,Heat,Weapons – 17 – C

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F17C 3/08 (2006.01)

Patent

CA 2500121

A lightweight, cryogenic-compatible pressure vessel for flexibly storing cryogenic liquid fuels or compressed gas fuels at cryogenic or ambient temperatures. The pressure vessel has an inner pressure container enclosing a fuel storage volume, an outer container surrounding the inner pressure container to form an evacuated space therebetween, and a thermal insulator surrounding the inner pressure container in the evacuated space to inhibit heat transfer. Additionally, vacuum loss from fuel permeation is substantially inhibited in the evacuated space by, for example, lining the container liner with a layer of fuel-impermeable material, capturing the permeated fuel in the evacuated space, or purging the permeated fuel from the evacuated space.

La présente invention concerne un récipient sous pression cryogénique compatible, léger, permettant le stockage souple de carburants liquides cryogéniques ou de carburants gazeux comprimés à des températures cryogéniques ou ambiantes. Le récipient sous pression présente un contenant sous pression intérieur renfermant un volume de stockage de carburant, un contenant extérieur entourant le contenant sous pression intérieur afin de former un espace sous vide entre les deux, et un isolant thermique entourant le contenant sous pression intérieur dans l'espace sous vide afin d'empêcher le transfert de chaleur. De plus, la perte de vide par perméation de carburant est sensiblement empêchée dans l'espace sous vide, par exemple, par revêtement de la doublure de contenant à l'aide d'une couche de matériau imperméable aux carburants, capture du carburant ayant pénétré dans l'espace sous vide, ou purge du carburant ayant pénétré dans l'espace sous vide.

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