Fuel water separator filter with water drain

  • US 9,353,713 B2
  • Filed: 12/14/2012
  • Issued: 05/31/2016
  • Est. Priority Date: 12/19/2011
  • Status: Active Grant
First Claim
Patent Images

1. A fuel water separator filter, comprising:

  • a filter housing defining a filter element chamber and a water sump, the filter element chamber is separated from the water sump by a wall;

    a coalescing filter element disposed in the filter element chamber, the coalescing filter element configured to separate water from fuel; and

    at least one passageway in the wall that fluidly connects the filter element chamber and the water sump, the at least one passageway being the only passages through which fluid can flow into the water sump, other than atmospheric air via a drain valve,flow through each of the at least one fluid passageway being controlled by at least one valve, the at least one valve having a first, open position that permits fluid flow from the filter element chamber into the water sump and a second, closed position preventing fluid flow between the filter element chamber and the water sump;

    the filter housing further includes the drain valve in communication with the water sump to permit draining of water from the water sump; and

    the filter housing further includes an inlet such that all fluid that flows into the inlet flows into the filter element chamber.

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