Fuel vapor retention system and methods
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United States of America Patent
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Nov 18, 2014
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N/A
app pub date -
Sep 24, 2009
filing date -
Sep 24, 2008
priority date (Note) -
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Abstract
Embodiments of the present invention relate to fuel tanks including features for capturing vapors displaced during a filling process. In an embodiment, the invention includes a fuel tank including a housing defining an interior volume; an inflow conduit providing fluid communication between the outside of the housing and the interior volume; a check-valve coupled to the inflow conduit, the check-valve configured to allow fuel to flow through the check-valve into the interior volume but prevent the flow of gases from the interior volume to the outside of the housing; an expansion member configured to reversibly change in volume; and a vent conduit providing fluid communication between the expansion member and the interior volume of the housing. Other embodiments are also described herein.
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