Motor load based fluid filter service interval

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United States of America Patent

PATENT NO 11701605
SERIAL NO

17733863

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Abstract

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An arrangement and method for determining the service interval of a fluid filter includes a filter and a pump driven by an electric motor. A control module calculates pressure drop across the filter by way of voltage, current, and/or PWM provided to the electric motor. The control module monitors the rate of change of the pressure drop across the filter over the life of the filter. The volume flow rate of the fluid may or may not be held constant. If an abrupt or sudden characteristic change in the pressure drop across the filter occurs, or if the pressure drop across the filter exceeds a threshold amount, the arrangement and method provides a notification that either the filter needs to be replaced or serviced, or that it is probable that a mechanical condition has developed, depending upon the characteristics of the change in pressure drop across the filter.

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Patent Owner(s)

Patent OwnerAddress
INTERNATIONAL ENGINE INTELLECTUAL PROPERTY COMPANY LLCLISLE ILLINOIS 60532

International Classification(s)

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  • 2022 Application Filing Year
  • F01M Class
  • 151 Applications Filed
  • 83 Patents Issued To-Date
  • 54.97 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20222023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lyons, Timothy M Batavia, US 16 72

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges2163701 - 100102030405060708090100110120130140150160170180190200210220230

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