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Compressed gas fuel storage system

United States Patent

July 10, 2001
View the Complete Patent at the US Patent & Trademark Office
A compressed gas vehicle fuel storage system comprised of a plurality of compressed gas pressure cells supported by shock-absorbing foam positioned within a shape-conforming container. The container is dimensioned relative to the compressed gas pressure cells whereby a radial air gap surrounds each compressed gas pressure cell. The radial air gap allows pressure-induced expansion of the pressure cells without resulting in the application of pressure to adjacent pressure cells or physical pressure to the container. The pressure cells are interconnected by a gas control assembly including a thermally activated pressure relief device, a manual safety shut-off valve, and means for connecting the fuel storage system to a vehicle power source and a refueling adapter. The gas control assembly is enclosed by a protective cover attached to the container. The system is attached to the vehicle with straps to enable the chassis to deform as intended in a high-speed collision.
Wozniak; John J. (Columbia, MD), Tiller; Dale B. (Lincoln, NE), Wienhold; Paul D. (Baltimore, MD), Hildebrand; Richard J. (Edgemere, MD)
The Johns Hopkins University (Baltimore, MD)
09/ 427,798
October 27, 1999
STATEMENT OF GOVERNMENTAL INTEREST This invention was made with Government support under Contract No. DE-FG02-95CE50421 awarded by the Department of Energy. The Government has certain rights in the invention.