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Constant volume combustor having rotating wave rotor

  • US 8,555,612 B2
  • Filed: 02/21/2012
  • Issued: 10/15/2013
  • Est. Priority Date: 07/03/2002
  • Status: Active Grant
First Claim
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1. A method for starting a gas turbine engine, comprising:

  • (a) providing an engine including a compressor, a combustor including a wave rotor having a plurality of passageways and a turbine;

    (b) rotating the wave rotor;

    (c) fueling at least a portion of the plurality passageways;

    (d) combusting the fuel within the plurality of passageways to form a flow of exhaust gas;

    (e) discharging at least a portion of the exhaust gas from the wave rotor and delivering to a bladed rotor within the turbine;

    (f) rotating the bladed rotor within the turbine with exhaust gas from said discharging;

    (g) repeating acts (a)-(f) to bring the compressor and turbine up to an operating condition;

    providing an independent drive operative coupled with the wave rotor; and

    wherein at least a portion of said rotating occurring through the independent drive;

    which further includes supporting the wave rotor with electromagnetic forces, and wherein the at least a portion of said rotating includes controlling the electromagnetic forces to cause said rotating.

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