A filter assembly comprises a filter element and an outlet flange. The filter element comprises a filter media pack comprising a plurality of filter media layers stacked on top of each other to form the filter media pack. The filter media pack has an inlet surface being at an inlet portion of the filter media pack, and an outlet surface being at an outlet portion of the filter media pack. An outlet flange is coupled to the outlet portion of the filter media pack.

An assembly for pleating a filter media sheet and using the assembly with a pleated filter media as a filter for filtration units. The assembly includes a male member and a female member. The male member includes several pleat ridges arranged in rows and columns and the female member includes several pleat valleys arranged in rows and columns. The filter media sheet can be placed over the female member and a last column of pleat ridges can be gently pressed over a first column of pleat valleys, such that the first column is within the last column, respectively. The step can be repeated incrementally till the last column of the pleat ridges is within the last column of the pleat valleys progressively forming a pleated filter media sandwiched between the male member and the female member.

The invention relates to a fibrous nonwoven, in particular for a filter medium, having a first layer, wherein at least one single-piece fiber strand of said first layer has a first fiber portion and a second fiber portion in the longitudinal direction, and wherein the fiber strand has a thickening substantially in said second fiber portion.

A filter support for mounting an air cleaning device includes an access panel, at least one support member extending from the access panel, and a latch mounted to the access panel. The latch is operable to selectively couple to the air cleaning device.

Various embodiments relate to a filter housing seal member. The filter housing seal member includes a first member end and a second member end disposed axially away from the first member end. A first member portion is disposed between the first member end and the second member end. A second member portion is disposed between the first member end and the second member end. The second member portion is disposed radially away from the first member portion. An undercut is positioned along the first member portion, the undercut configured to receive and form a seal with a filter seal member of a filter element.

An air filtration media pack is provided having a plurality of layers of single facer media. The layer of single facer media includes a fluted sheet, a facing sheet, and a plurality of flutes extending between the fluted sheet and the facing sheet and having a flute length extending from a first face of the filtration media pack to a second face of the filtration media pack. A first portion of the plurality of flutes are closed to unfiltered air flowing into the first portion of the plurality of flutes, and a second portion of the plurality of flutes are closed to unfiltered air from flowing out of the second portion of the plurality of flutes so that air passing into one of the first face and the second face of the media pack and out the other of the first face and the second face of the media pack passes through media to provide filtration of the air. The fluted sheet includes repeating internal peaks facing toward the facing sheet and repeating external peaks facing away from the facing sheet. In addition, the fluted sheet can include at least one ridge extending along at least 50% of the flute length between an internal peak and an adjacent external peak. Additional characterizations of an air filtration media pack, air filtration media, and methods of making and using are provided.

A brake dust particle filter for a disc brake assembly is provided with a housing that has a first housing side wall, a second housing side wall, and a housing circumferential wall, wherein the housing circumferential wall extends between the first housing side wall and the second housing side wall. A filter insert with a filter medium is arranged in the housing and extends along one of the first and second housing side walls and along the housing circumferential wall. The filter insert has a curved circumferential edge. The housing has a curved receiving groove. The curved circumferential edge engages the curved receiving groove. The filter insert is L-shaped and is configured to at least partially cover a friction surface and a circumferential surface of a brake disc of the disc brake assembly. The curved circumferential edge of the filter insert projects past the filter medium.

A filter assembly includes a support fame, a filter media, and a conditioning device. The filter media is coupled to the support frame. The filter media has a dirty side that receives an air stream and a clean side that outputs the air stream after having been filtered by the filter media. The conditioning device is coupled to the support frame. The conditioning device is positioned downstream of the clean side of the filter media with respect to the air stream and directly contacts the clean side of the filter media.

A tubular filter arrangement (1000) comprising a tubular filter element (100) and a tubular air pulse distributor (300) is provided. The filter element comprises a tubular pleated filter media (106) having an initially circular cross section, and a cage structure (120) and which along an exterior envelope surface thereof is arranged to support the pleated filter media. The exterior envelope surface of the cage structure, defines a first and a second set of two opposing wall portions (123, 124). In a condition when the pleated filter media is arranged to encircle the exterior envelope surface of the cage structure, an inner wall (107) of the pleated filter media is elastically deformed to conform to the exterior envelope surface of the cage structure (120). The tubular air pulse distributor comprises a locking member (303) configured to allow the tubular air pulse distributor to lockingly engage the tubular filter element.

An air filter element inlcudes a first end and a second end located opposite to the first end in relation to a longitudinal direction of the air filter element. The air filter element is configured for axial insertion into a filter housing with the first end leading the axial insertion. The air filter element inlcudes a gripping structure at the second end, the gripping structure comprising an external surface accessible for interaction by a tool to facilitate removal of the air filter element from the filter housing. The gripping structure is also configured to, during insertion of the air filter element into the filter housing, radially align the air filter element in the filter housing.