Apparatus and method for minimizing and/or eliminating dilution air leakage in a combustion liner assembly

(19)

(11)

EP 2 378 201 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	03.04.2013 Bulletin 2013/14

(43)	Date of publication A2:
	19.10.2011 Bulletin 2011/42

(21)	Application number: 11162106.6

(22)	Date of filing: 12.04.2011

(51)

International Patent Classification (IPC):

F23R 3/00^(2006.01)

F23R 3/02^(2006.01)

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
	Designated Extension States:
	BA ME

(30)

Priority:

13.04.2010 US 759042

(71)	Applicant: General Electric Company
	Schenectady, NY 12345 (US)

(72)	Inventors:
	Popovic, Predrag Greenville, SC 29615 (US) Venkataraman, Krishna Kumar Greenville, SC 29615 (US) Simons, Derrick Walter Greenville, SC 29615 (US) Gupta, Ajay Kumar Atlanta, GA 30339 (US) Hessler, William Kirk Philadelphia, PA 19144 (US) Lebegue, Jeffrey Greenville, SC 29615 (US)

(74)	Representative: Cleary, Fidelma et al
	GE International Inc. Global Patent Operation-Europe 15 John Adam Street London WC2N 6LU London WC2N 6LU (GB)

(54)	Apparatus and method for minimizing and/or eliminating dilution air leakage in a combustion liner assembly

(57) A combustion liner assembly (2) for a gas turbine includes an outer liner (4), the outer liner having a flange (14) at a forward end. An inner liner (6) is disposed within the outer liner. The inner liner has a first inner wall (12). A venturi (8) includes a second inner wall (24), a venturi throat (10), and the first inner wall of the inner liner. A slip joint (16) is connected to the second inner wall. The slip joint receives the flange of the outer liner. Alternatively, or additionally, the combustion liner assembly includes a slip joint (30) between the inner or outer liner and an aft section (20).

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