Clocked combustor can array

Patent metadata

Field	Value
Publication number	US-9546601-B2
Application number	US-201213681453-A
Country	US
Kind code	B2
Filing date	Nov 20, 2012
Priority date	Nov 20, 2012
Publication date	Jan 17, 2017
Grant date	Jan 17, 2017

Abstract

The present application provides a clocked combustor can array for coherence reduction in a gas turbine engine. The clocked combustor can array may include a number of combustor cans positioned in a circumferential array. A first set of the combustor cans may have a first orientation and a second set of the combustor cans may have a second orientation.

First claim

We claim:

1. A clocked combustor can array for coherence reduction in a gas turbine engine, comprising:
a plurality of combustor cans positioned in a single circumferential array, each of the plurality of combustor cans comprising a non-circular head end of equal size;
a first set of the plurality of combustor cans comprising a first orientation with a long side facing a center point of the single circumferential array; and
a second set of the plurality of combustor cans comprising a second orientation with a short side facing the center point of the single circumferential array.

2. The clocked combustor can array of claim 1 , wherein the non-circular head end comprises an oval head end or an elliptical head end.

3. The clocked combustor can array of claim 1 , wherein the first orientation comprises a clocked position of ninety degrees from the second orientation.

4. The clocked combustor can array of claim 1 , further comprising a plurality of fuel nozzles with clockwise vanes thereon.

5. The clocked combustor can array of claim 1 , further comprising a plurality of fuel nozzles with counter-clockwise vanes thereon.

6. The clocked combustor can array of claim 1 , further comprising a plurality of fuel nozzles with clockwise vanes and counter-clock wise vanes thereon.

7. The clocked combustor can array of claim 1 , wherein each of the plurality of combustor cans comprise one piece combustor cans.

8. A gas turbine engine comprising a clocked combustor can array for coherence reduction, the clocked combustor can array comprising:
a plurality of combustor cans positioned in a single circumferential array;
each of the plurality of combustor cans comprising a non-circular head end of equal size;
a first set of the plurality of combustor cans comprising a first orientation with a long side facing a center point of the single circumferential array; and
a second set of the plurality of combustor cans comprising a second orientation with a short side facing the center point of the single circumferential array.

Assignees

• Gen Electric

Inventors

• Kim Won-Wook
• Mcmahan Kevin Weston
• Srinivasan Shiva Kumar

Classifications

• F23R2900/00014

  Reducing thermo-acoustic vibrations by passive means, e.g. by Helmholtz resonators · CPC title

• F02C7/24 Primary

  Heat or noise insulation (air intakes having provisions for noise suppression F02C7/045; turbine exhaust heads, chambers, or the like F01D25/30; silencing nozzles of jet-propulsion plants F02K1/00) · CPC title

• F23R3/46

  Combustion chambers comprising an annular arrangement of {several essentially tubular} flame tubes within a common annular casing or within individual casings · CPC title

• F23C5/08 Primary

  Disposition of burners · CPC title