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Combustor assembly in a gas turbine engine

  • US 8,375,726 B2
  • Filed: 04/28/2009
  • Issued: 02/19/2013
  • Est. Priority Date: 09/24/2008
  • Status: Active Grant
First Claim
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1. A combustor assembly in a gas turbine engine comprising a main casing, the combustor assembly comprising:

  • a combustor device coupled to the main casing comprising;

    a flow sleeve for receiving pressurized air; and

    a liner disposed radially inwardly from said flow sleeve having an inlet, an outlet and an inner volume;

    a first fuel injection system associated with said flow sleeve for providing fuel which is adapted to be mixed with at least a portion of the pressurized air and ignited in said liner inner volume creating combustion products defining first working gases;

    a transition duct downstream of an intermediate duct and having an inlet section and an outlet section that discharges gases to a turbine section; and

    the intermediate duct having inlet and outlet portions and disposed between said liner and said transition duct so as to define a path for the first working gases to flow from said liner to said transition duct, wherein said intermediate duct inlet portion is associated with said liner outlet such that substantially unconstrained axial movement occurs between said intermediate duct and said liner and said intermediate duct outlet portion is associated with said transition duct inlet section such that substantially unconstrained axial movement occurs between said intermediate duct and said transition duct, wherein said flow sleeve surrounds said liner and said intermediate duct is integral with said flow sleeve.

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