High-pressure gas tank and liner with mouthpiece
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United States of America Patent
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Feb 13, 2018
Issued Date -
N/A
app pub date -
Apr 23, 2015
filing date -
May 20, 2014
priority date (Note) -
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Abstract
A high-pressure gas tank includes a seal member that covers an opening recess from a surface of a liner on an outer side of an inner circumferential wall of a mouthpiece placing portion to a surface of a mouthpiece flange on a center side of a flange outer peripheral edge. The flange outer peripheral edge and the inner circumferential wall of the mouthpiece placing portion satisfy Dt>(Sm/Xgs)·100. Dt denotes a width of an opening of the opening recess and is defined as a distance between a flange outer peripheral edge-side end and an inner circumferential wall-side end of an opening of the opening recess. Sm denotes a maximum tolerance of a relative positional misalignment between the inner circumferential wall of the mouthpiece placing portion and an outer circumferential end of the flange outer peripheral edge. Xgs [%] denotes a breaking elongation of the seal member.
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