Fuel tank cleaning system and method of reducing contaminants in

Details Fuel tank cleaning system and method of reducing contaminants in Fuel tank cleaning system and method of reducing contaminants in

1992-11-03

1994-08-09

Dawson, Robert A.

Liquid purification or separation

Processes

Separating

210750, 210805, 210800, B01D 1702

Patent

active

053364180

ABSTRACT:
A system for cleaning contaminated fuel in a fuel tank by introducing a suction line to substantially the lowermost part of the tank for suctioning off free water and heavy contaminants settled in the tank. The materials are then routed via suction to a first strainer, where free water and contaminants are trapped and retrieved. The filtrate then moves to a separation vessel, whereby the fuel is filtered through a primary filter medium, and the contaminants settle to the bottom of the vessel and are collected. The filtered fuel is then routed to a tertiary filter before being returned to the fuel tank to agitate the contaminants and facilitate this removal by the suction side of the system. This closed loop process is continued until the filtered fuel is substantially free of contaminants.

REFERENCES:
patent: 404425 (1889-06-01), Obenchain
patent: 938495 (1909-11-01), Lunstrum
patent: 2846710 (1958-08-01), Haika
patent: 2986279 (1961-05-01), Henigman
patent: 3171807 (1965-03-01), Neuman
patent: 3900397 (1975-08-01), Bell
patent: 4135946 (1979-01-01), Casey et al.
patent: 4153553 (1979-05-01), Davis
patent: 4360436 (1982-11-01), Poveromo
patent: 4772401 (1988-09-01), Rawlins
patent: 4840732 (1989-06-01), Rawlins
patent: 5078901 (1992-01-01), Sparrow
patent: 5174892 (1992-12-01), Davis

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