Two stage fuel water separator and particulate filter utilizing pleated nanofiber filter material
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United States of America Patent
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Aug 27, 2013
Grant Date -
Jul 14, 2011
app pub date -
Jun 22, 2010
filing date -
Oct 8, 2008
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Abstract
A water separator and particulate filter with a first or outer stage configured to coalesce water from fluid such as fuel, and a second or inner stage configured to separate coalesced water from the fluid and also remove fine solid contaminants from the fluid. The coalescing stage includes a pleated cylinder of polymeric media. The pleated cylinder has pleat valleys and downstream pleat tips, and release sites defined at the downstream pleat tips. The separator stage includes a non-pleated cylinder of polymeric media surrounding and in contact with outer pleat tips of a multi-layer pleated cylinder.
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