Flightline rapid oil preservation system

Details Flightline rapid oil preservation system Flightline rapid oil preservation system

1997-10-10

1999-09-14

Lithgow, Thomas M.

Liquid purification or separation

Structural installation

Closed circulating system

210196, 210241, 2102571, 2104165, 2104161, 210167, 244114R, B01D 3600, B01D 2933, B01D 2952

Patent

active

059518570

ABSTRACT:
A system is provided for changing hydraulic oil in vehicles such as airplanes, which enables rapid replacement of dirty oil and rapid cleaning of oil to meet military/commercial aircraft specifications for reuse. The apparatus includes a frame (40), dirty and clean oil tanks (14, 16) mounted on the frame, a filter tank (30) with filters (32) mounted on the frame, and pump and valve means (20) for controlling the flow of oil. Initially, the apparatus is rolled up to an airplane, dirty oil in the hydraulic reservoir of the plane is pumped into the dirty oil tank, and clean oil from the clean oil tank is pumped into the airplane reservoir. Thereafter, while the apparatus is moved or is stationary, dirty oil from the dirty oil tank is pumped through filters of the filter tank and into the clean oil tank for an initial cleaning, and thereafter the oil is continually circulated from the clean oil tank through the filtered tank and back to the clean oil tank to polish the oil. The filter tank includes a filter region divider (64) that divides the filters into two groups (90, 92), a manifold divider (66), and a series conduit (84) that connects the first manifold region part (74) to the second filter region part (72).

REFERENCES:
patent: 3394812 (1968-07-01), Cohen
patent: 3954611 (1976-05-01), Reedy

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