B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
137/39, 183/96
B01D 46/04 (2006.01) B01D 46/24 (2006.01) B01D 46/52 (2006.01)
Patent
CA 1280666
ABSTRACT OF THE DISCLOSURE Pleated paper barrier type air filter elements are cleaned by a reverse air jet cleaning system which includes one or more specifically shaped cleaning air valves 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 sir 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 valves may be configured in virtually any geometric shape to provide a desired jet pattern.
519390
Gowling Lafleur Henderson Llp
Howeth D. Franklin
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