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Method of engine starting in a gas turbine engine

  • US 6,810,676 B2
  • Filed: 12/14/2001
  • Issued: 11/02/2004
  • Est. Priority Date: 12/14/2001
  • Status: Expired due to Term
First Claim
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1. A method of engine starting in a gas turbine engine comprising:

  • rotating the engine at an increasing speed as a function of time to accelerate the engine and provide an air flow into a combustor of the engine;

    injecting fuel into the combustor at a varying rate during the acceleration of the engine until the engine is lighted-off, the varying rate being a function of time and represented by a curve having at least one high frequency with respect to a light-off time, representing instant changes of the rate for intersecting a light-off zone while reducing a quantity of fuel injected into the combustor; and

    then, continuously injecting fuel into the combustor to accelerate the engine to a self-sustaining operation condition.

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