公开(公告)号：US20220387915A1

公开(公告)日：2022-12-08

申请号：US17767258

申请日：2020-10-08

Applicant: Donaldson Company, Inc.

Inventor： Patricia A. Ignacio-de Leon ,  Jacob C. Savstrom ,  Derek O. Jones ,  Klenton T. Willis ,  Thomas M. Weik

IPC: B01D39/16

Abstract: This disclosure describes a high performing (including, for example, high efficiency and low pressure drop) filter media. The filter media includes a support layer and a layer of fine fibers wherein at least some of the fine fibers in the fine fiber layer having an average diameter at least 3 times the average fiber diameter of a smaller fine fiber in the fine fiber layer. The fine fiber layer may include multiple layers of fine fibers. In some aspects, the smaller fine fiber may be present in the same layer of fine fibers as the larger fine fibers. Additionally or alternatively, the larger fine fibers may be present in a first layer of fine fibers and the smaller fine fibers may be present in a second layer of fine fibers.

公开(公告)号：US20220290887A1

公开(公告)日：2022-09-15

申请号：US17695555

申请日：2022-03-15

Applicant: Donaldson Company, Inc.

Inventor： Chad M. Goltzman ,  Charles E. Kotasek ,  Peter P. Vitko ,  Xiaobin Wang ,  Matthew J. Anderson ,  John H. Chastain, JR. ,  Jacob C. Savstrom

IPC: F24F11/39 ,  F24F11/84

Abstract: Embodiments herein relate to monitoring systems that can learn patterns of filtration system operation and then use the learned patterns to monitor ongoing filtration system operation/performance. In a first aspect, a monitoring system for an air filtration system is included having a control circuit, and a pressure sensor, wherein the pressure sensor is in electronic communication with the control circuit. The monitoring system can be configured to store data reflecting signals of the pressure sensor, evaluate the stored data representing a first time period to derive a valve operating pattern, and compare data from the pressure sensor obtained after the first time period against the derived valve operating pattern to identify an abnormal valve event.