公开(公告)号：US20220379268A1

公开(公告)日：2022-12-01

申请号：US17825761

申请日：2022-05-26

Applicant: Donaldson Company, Inc.

Inventor： Mikayla A. Yoder ,  Christopher P. Conklin ,  Davis B. Moravec ,  Andrew J. Dallas ,  Tianheng Zhao ,  Richard W. Janse van Rensburg ,  Peter Jackson ,  Blane Scott

IPC: B01D69/12 ,  B01D71/52 ,  B01D69/02

Abstract: A filter material has a layer of porous material and a plurality of structures disposed on a surface of the layer, where each of the structures has a re-entrant geometry. The plurality of structures may be a plurality of ordered structures. A filter material may include a layer of porous material and a plurality of re-entrant structures disposed on a surface of the layer, each of the re-entrant structures including a stem and a cap, where the caps of adjacent structures are attached to each other to form a plurality of pores, where each pore is disposed between adjacent re-entrant structures.