B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
183/96
B01D 46/24 (2006.01) B01D 46/42 (2006.01)
Patent
CA 1306958
ABSTRACT OF THE DISCLOSURE Disclosed are pleated paper barrier type air filter elements having planar filter panels that are cleaned by a reverse air jet cleaning system which includes one or more specifically shaped cleaning air manifolds or heads in which a plurality of jet nozzles or orifices are arranged in a predetermined pattern to provide a totally enveloping air jet which is discharged into a flow tube immediately downstream of the clean air flow chamber of a generally tubular filter element. The jet pattern provides a temporary pressure seal within the flow tube and entrains a substantial amount of ambient air into the reverse flow jet to thoroughly flush elements to clean dust cake from the exterior surfaces thereof. The multiple jet arrangement reduces the overall space occupied by the reverse jet cleaning system and provides a larger mass flow of cleaning air. Multiple jet orifice heads or manifolds may be configured in virtually any geometric shape to provide a desired jet pattern. The planar filter panel elements allow high media face velocities with low flow tube velocities. Oval filters are provided which have a greater clean air flow area than a plurality of cylindrical elements fitted within the same dimensional envelope.
519279
Gowling Lafleur Henderson Llp
Howeth D. Franklin
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