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Oil debris monitoring (ODM) using active valve configuration control

  • US 10,302,541 B2
  • Filed: 09/14/2016
  • Issued: 05/28/2019
  • Est. Priority Date: 09/14/2016
  • Status: Active Grant
First Claim
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1. A gas turbine engine with oil debris monitoring comprising:

  • an oil debris monitor sensor configured to detect oil debris in an oil flow, and generate a sensor signal based on the detected oil debris;

    a controller configured to control the oil flow through the oil debris monitor sensor using a plurality of valves; and

    a signal processor configured to receive the sensor signal from the oil debris monitor and to receive a valve system configuration from the controller indicating a load applied to the plurality of valves, the signal processor further configured to generate a health indicator based on the detected oil debris indicated by the sensor signal and the load indicated by the valve system configuration,wherein the plurality of valves further comprises;

    a bypass oil flow path that bypasses the oil debris monitor sensor;

    an oil flow bypass valve connected in parallel with the oil debris monitor sensor, the oil flow bypass valve configured to control an amount of oil that flows through the bypass oil flow path; and

    an oil flow regulator valve connected in series with the oil debris monitor sensor, the oil flow regulator valve configured to control an amount of input oil flow delivered to the oil debris monitor sensor.

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