Patent ID: 8057563

Claim:
An air cleaner comprising: (a) a housing including a dirty air inlet, a clean air outlet, and an interior; (b) a planer tubesheet in the housing interior having a plurality of openings in the same plane as the tubesheet; (c) a filter arrangement comprising a plurality of individual z-media panel-style filters, each filter having a flow face and being oriented to cover one of the openings in the tubesheet such that the filter flow face is generally parallel to the plane of the tubesheet; each of the filters being mounted in the respective one of the openings to permit air to flow through the filter faces in a straight flow through direction; (d) a plurality of blowpipes; each blowpipe being oriented to direct a fluid pulse at a respective one of the openings in the tubesheet covered by the panel-style filter arrangement; (i) each blowpipe having an inside diameter and being spaced no more than 30-40 times of the inside diameter of the blowpipe from the tubesheet; (ii) each blowpipe being oriented to direct a fluid pulse at a respective one of the openings in the tubesheet covered by the panel-style filter arrangement at an angle that is: (A) not normal to the plane of the openings in the tubesheet; (B) not in line with the direction of filtration flow through the respective panel-style filter; and (C) offset to a plane of the openings in the tubesheet of about at least 25Â°; and (e) an accumulator arrangement oriented adjacent to the openings in the tubesheet on a downstream side of the tubesheet; the accumulator arrangement including: (i) for each opening in the tubesheet, a first and second plate adjacent to opposite ends of the tubesheet opening and extending from and being angled relative to the plane of the tubesheet and the opening; (A) adjacent openings in the tubesheet sharing a same first or second plate.