公开(公告)号：US20220305424A1

公开(公告)日：2022-09-29

申请号：US17841940

申请日：2022-06-16

Applicant: Donaldson Company, Inc.

Inventor： Mark A. Sala

IPC: B01D46/52

Abstract: The technology disclosed herein generally relates to fluted filter assemblies, where flutes formed in the filter media extend from a first flow face of the filter assembly to a second flow face of the filter assembly, where one flow face is an inlet and one flow face is the outlet. Some embodiments relate to first flute distance between the first flow face and the second flow face differing from a second flute distance between the first flow face and the second flow face by greater than 2 mm. In some embodiments at least one of the first flow face and the second flow face is non-planar, while in other embodiments at both of the first flow face and the second flow face are planar and non-parallel. Other embodiments are described.

公开(公告)号：US20180161717A1

公开(公告)日：2018-06-14

申请号：US15839633

申请日：2017-12-12

Applicant: DONALDSON COMPANY, INC.

Inventor： Daniel E. Adamek ,  Scott M. Brown ,  Mark A. Sala

IPC: B01D46/52

Abstract: Embodiments include an air filtration media pack comprising a plurality of layers of fluted media, each layer comprising a facing sheet and a fluted sheet, the fluted sheet comprising a first plurality of flutes and a second plurality of flutes, the first and second plurality of flutes being arranged in a parallel flow configuration; wherein the first and second plurality of flutes exhibit regular repeating differences in flute shape, flute size, flute height, flute width, cross-flute area, or filter media.