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METHOD AND APPARATUS FOR PROVIDING FUEL TO AN AIRCRAFT ENGINE

  • US 20090283080A1
  • Filed: 05/15/2008
  • Published: 11/19/2009
  • Est. Priority Date: 05/15/2008
  • Status: Active Grant
First Claim
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1. A method for adjusting a fuel-air ratio for a fuel-air mixture provided to a cylinder assembly of an engine, comprising:

  • detecting a set of rich exhaust gas temperature signals corresponding to a set of rich fuel-air ratio values, each of the set of rich fuel-air ratio values having a fuel-air ratio value that is greater than a threshold fuel-air ratio value;

    detecting a set of lean exhaust gas temperature signals corresponding to a set of lean fuel-air ratio values, each of the set of lean fuel-air ratio values having a fuel-air ratio value that is less than the threshold fuel-air ratio value;

    detecting an intersection between the set of lean exhaust gas temperature signals and the set of rich exhaust gas temperature signals, the intersection associated with an actual peak fuel-air ratio value;

    comparing the actual peak fuel-air ratio value with the threshold fuel-air ratio value; and

    adjusting the fuel-air ratio in the fuel-air mixture provided to the cylinder assembly based upon the comparison of the actual peak fuel-air ratio value and threshold fuel-air ratio value.

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