Air filter assembly for filtering air with particulate matter

Details Air filter assembly for filtering air with particulate matter Air filter assembly for filtering air with particulate matter

1998-08-07

2000-07-18

Simmons, David A.

Gas separation

With nonliquid cleaning means for separating media

Cohesive filter media cleaning

55301, 553411, 553412, 95280, B01D 4604

Patent

active

06090173&

ABSTRACT:
A method of cleaning a filter element includes discharging a quantity of pressurized air from a blow pipe into a Venturi element in air flow communication with a filter element to provide a positive cleaning pressure differential along greater than 95% of a length of the filter element. In one arrangement, an air filter assembly for accomplishing this method comprises a housing, a first filter construction, a first Venturi element, and a pulse jet cleaning system including a blow pipe. The blow pipe and the Venturi element are constructed and arranged to provide a positive cleaning pressure differential along greater than at least 75% of the length of the filter media within the element. In one embodiment, the Venturi element is described as including a specially formed contoured section in the throat portion of the element.

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