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Bearing health monitor

  • US 7,631,498 B2
  • Filed: 10/11/2005
  • Issued: 12/15/2009
  • Est. Priority Date: 10/11/2005
  • Status: Expired due to Fees
First Claim
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1. A method for monitoring a turbocharger having a rotor and a housing, the rotor being configured to rotate on a bearing about an axis of rotation with respect to the housing, comprising:

  • sensing rotor movement information using a single sensor, the rotor movement information including both rotor rotation information and rotor displacement information, wherein the rotor rotation information pertains to rotation about the axis of rotation, and the rotor displacement information pertains to displacement from the axis of rotation; and

    establishing indicators of rotor rotation speed and bearing condition from the rotor movement information.

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