METHOD AND APPARATUS FOR HUMIDIFYING A GAS IN FUEL CELL SYSTEMS
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United States of America Patent
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Issued Date -
Oct 2, 2008
app pub date -
Mar 30, 2007
filing date -
Mar 30, 2007
priority date (Note) -
Abandoned
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Abstract
A membrane exchange humidifier for use with a fuel cell system, fuel cell or fuel cell stack includes at least one wet chamber, a plurality of dry chambers, a water permeable sheet membrane; wherein each of the plurality of dry chambers is separated from one or more of the at least one wet chambers by the water permeable sheet membrane, whereby water is capable of being transferred across the water permeable sheet membrane; and a variable flow cross section restriction device fluidly connects to at least one of the plurality of dry chambers.
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