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Pressure diagnostic for rotary equipment

  • US 7,765,873 B2
  • Filed: 07/18/2008
  • Issued: 08/03/2010
  • Est. Priority Date: 07/20/2007
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a rotary apparatus having a component for operating on a working fluid, the component comprising a turbine, a compressor, a fan, a turbofan or a blower;

    a sensor that senses a working fluid pressure of the rotary apparatus and monitors process noise on the working fluid pressure; and

    a processor that monitors process noise on the working fluid pressure and generates a wear diagnostic indicative of wear on the component as a function of the process pressure noise;

    wherein the wear diagnostic is correlated with a physical change in the component of the rotary apparatus; and

    wherein the physical change is due to damaging interaction with the working fluid.

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