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Dual valve apparatus for aircraft engine ice protection and related methods

  • US 7,959,109 B2
  • Filed: 07/02/2008
  • Issued: 06/14/2011
  • Est. Priority Date: 07/02/2008
  • Status: Active Grant
First Claim
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1. A thermal anti-ice system in an aircraft comprising:

  • a controlled valve configured to receive air from a compressor bleed port of an engine of the aircraft;

    a self-regulating valve fluidly connected between the controlled valve and an inlet of the engine;

    a first pressure sensor configured to sense pressure between the valves; and

    a second pressure sensor configured to sense pressure between the self-regulating valve and the inlet.

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