Fuel vapor treatment device
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United States of America Patent
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Mar 15, 2016
Grant Date -
Jun 19, 2014
app pub date -
Dec 12, 2013
filing date -
Dec 18, 2012
priority date (Note) -
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Abstract
A fuel vapor treatment device including a casing including a gas passage formed in the casing, a granular adsorbent filled in the gas passage, the granular adsorbent serving to adsorb and desorb fuel vapor, and a desorption promoting structure to promote desorption of the fuel vapor in a central portion of a cross-sectional area of the gas passage as compared to an outer peripheral portion of the cross-sectional area of the gas passage.
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