Method for forming a bladder for fluid storage vessels

Details Method for forming a bladder for fluid storage vessels Method for forming a bladder for fluid storage vessels

1998-06-09

2000-01-25

Pezzuto, Helen L.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 352, 428 353, 428 358, 428 362, 428 369, 428 3691, 138 30, 138 37, 206 06, B29D 2200

Patent

active

060176008

ABSTRACT:
A lightweight, low permeability liner for graphite epoxy composite compressed gas storage vessels. The liner is composed of polymers that may or may not be coated with a thin layer of a low permeability material, such as silver, gold, or aluminum, deposited on a thin polymeric layer or substrate which is formed into a closed bladder using torispherical or near torispherical end caps, with or without bosses therein, about which a high strength to weight material, such as graphite epoxy composite shell, is formed to withstand the storage pressure forces. The polymeric substrate may be laminated on one or both sides with additional layers of polymeric film. The liner may be formed to a desired configuration using a dissolvable mandrel or by inflation techniques and the edges of the film seamed by heat sealing. The liner may be utilized in most any type of gas storage system, and is particularly applicable for hydrogen, gas mixtures, and oxygen used for vehicles, fuel cells or regenerative fuel cell applications, high altitude solar powered aircraft, hybrid energy storage/propulsion systems, and lunar/Mars space applications, and other applications requiring high cycle life.

REFERENCES:
patent: 4377547 (1983-03-01), Hervig
patent: 4534751 (1985-08-01), Fortuna et al.
patent: 4966207 (1990-10-01), Howard et al.
patent: 5405472 (1995-04-01), Leone

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