Donaldson Comapny, Inc.

Chad M Goltzman

Xiaobin Wang

Michael J Wynblatt

Bradly G Hauser

Davis B Moravec

Danny William Miller

Jacob C Savstrom

Giancarlo M Izzi

Mikayla A Yoder

Michael J Cronin

John H Chastain, Jr

Matthew J Anderson

Peter P Vitko

David D Lauer

Charles E Kotasek

Sterling C Hansen

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.

Air filtration monitoring system with learning features

Embodiments herein relate to systems for detecting air bubbles in fluids. In an embodiment, a fluid system aeration detector is included having an optical air bubble sensor. The optical air bubble sensor can include a light source, a light detector, and a sensor controller. The sensor controller can be in signal communication with the light detector and can be configured to detect air bubbles based on the signals received from the light detector. The sensor controller can further be configured to estimate an amount of aeration of a fluid based on the detected air bubbles. Other embodiments are also included herein.

Air bubble sensing systems and related signal processing

Embodiments herein relate to water in fuel sensing systems that can be mounted on-vehicle. In an embodiment, a water in fuel sensing system is included having a light source, a light detector, and a sensor controller, wherein the sensor controller is in signal communication with the light detector and the sensor controller is configured to evaluate signals received from the light detector, identify water droplets based on the signals received from the light detector, record information regarding the classified water droplets, and generate an estimate of an amount of water in a fuel. Other embodiments are also included herein.

On-vehicle water in fuel sensing system and related signal processing

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Bloomington, MN, United States of America

Chad M Goltzman