Liquid purification or separation – Flow – fluid pressure or material level – responsive – Float
Patent
1995-10-11
1998-01-06
Fortuna, Ana
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Float
210 98, 210121, 210134, 2102421, 210513, 210515, 137192, B01D 3300, B01D 1200
Patent
active
057050562
ABSTRACT:
A separator (10) for separating a heavier liquid from a lighter liquid is disclosed which is intended to operate between a fuel tank (12) and a fuel pump connected to the fuel outlet (24) of the separator (10). The separator includes a float (30) which is light enough to float on the heavier liquid and which is heavy enough to sink in the lighter liquid. The float controls opening and closing of a valve (44, 46) through which heavier liquid is disclosed from the separator. As heavier liquid accumulates, the float lifts to open the valve (44, 46). A plate (34) subjected to a force caused by fuel flowing into the separator through the inlet (16) prevents the float opening the valve whilst the separator is in sub-atmospheric pressure. The plate can be replaced by a diaphragm which is subject on one side to atmospheric pressure and on the other side to the pressure in the separator.
REFERENCES:
patent: 3568835 (1971-03-01), Hansen
patent: 3868321 (1975-02-01), Gough
patent: 3948768 (1976-04-01), Chapman
patent: 4528094 (1985-07-01), Scragg
patent: 4799504 (1989-01-01), Scragg et al.
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