Liquid purification or separation – Diverse distinct separators – Including a filter
Patent
1997-10-02
1999-06-29
Lithgow, Thomas M.
Liquid purification or separation
Diverse distinct separators
Including a filter
210313, 210305, 210306, 210799, 210801, 210806, B01D 3604, B01D 3700
Patent
active
059164425
ABSTRACT:
The fuel filter assembly for filtering and removing water from a fuel under pressure includes an outerhousing, an inner sleeve member, an annular space between the outerhousing and the inner sleeve member, and filtering media for filtering the fuel. The filtering media is positioned within the sleeve member. The fuel inlet is at the upper end of the outer housing and provides fluid flow between the outer housing and the inner sleeve. The fuel inlet and annular space are positioned and dimensioned to provide a downward, non-circumferential, substantially laminar flow in the annular space. The inner sleeve member extends downwardly to a position below the bottom of the filtering media. The downwardly flowing fuel and contaminants must turn 180 degrees and flow upward through the filter media to the outlet. The slow moving denser components settle out in the accumulation chamber. The accumulation chamber is the region within the lower end of the outerhousing, below the filter media and the annular sleeve. The outlet valve provides a fluid drain for materials which accumulate in the accumulation chamber. The filtering media can be a hydrophobic filter media that prohibits the passage of water through the filter media.
REFERENCES:
patent: 1401976 (1922-01-01), Giovannoni
patent: 1468906 (1923-09-01), Inman
patent: 4298465 (1981-11-01), Druffel
patent: 4456529 (1984-06-01), Shinaver
patent: 4780203 (1988-10-01), Barcy
patent: 4986907 (1991-01-01), Uzeta
patent: 5507942 (1996-04-01), Davis
Lithgow Thomas M.
Parker Sheldon H.
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