Importance

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Abstract

A storage tank for gaseous hydrogen includes a continuous tank wall defining a serial array of hollow elongate tank portions of substantially constant cross-section and hollow connecting portions defining an internal storage volume, wherein adjacent ends of any pair of adjacent hollow elongate tank portions are connected by a hollow connecting portion having a cross-sectional dimension smaller than those of the adjacent hollow elongate tanks portions. The tank may be included in an aircraft wing such that it extends spanwise through one or more internal spars of the wing, thus providing a continuous gas storage volume at a given chordwise position notwithstanding the spars, and providing for storage of gaseous hydrogen at higher gravimetric efficiency than is achievable by a plurality of coupled discrete tanks disposed between the spars.

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First Claim