Air filter having a low internal pressure drop

Details Air filter having a low internal pressure drop Air filter having a low internal pressure drop

1992-06-29

1993-04-27

Spitzer, Robert

Gas separation

Plural serial basically diverse separating media

Plural stages in unitary casing

55422, 55475, 55496, 55509, 210448, B01D 4640

Patent

active

052058492

ABSTRACT:
Disposable air filter includes a filter element formed from a stacked plurality of annular disks. The disks are formed from a sorptive material and expand upon absorption of oil or water droplets. The disks are slightly compressed by a movable baffle. The baffle floats upon a stream of air entering the filter and directs the air radially through the filter element. The air flows between and through the disks with a resulting low pressure drop across the filter. As the disks expand, the baffle shifts axially within a filter housing to maintain the pressure drop across the filter element.

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Filtering Functions, by Foamex, A Limited Partnership, apparent publication date 1989.

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