US 9,810,081 B2
Cooled conduit for conveying combustion gases
Ching-Pang Lee, Cincinatti, OH (US); Chander Prakash, Oviedo, FL (US); Reinhard Schilp, Orlando, FL (US); and David A. Little, Chuluota, FL (US)
Assigned to SIEMENS ENERGY, INC., Orlando, FL (US)
Filed by Ching-Pang Lee, Cincinatti, OH (US); Chander Prakash, Oviedo, FL (US); Reinhard Schilp, Orlando, FL (US); and David A. Little, Chuluota, FL (US)
Filed on Jun. 11, 2010, as Appl. No. 12/813,658.
Prior Publication US 2011/0302924 A1, Dec. 15, 2011
Int. Cl. F01D 9/02 (2006.01); F23R 3/06 (2006.01); F02K 1/82 (2006.01); F23R 3/00 (2006.01); F23M 20/00 (2014.01)
CPC F01D 9/023 (2013.01) [F02K 1/822 (2013.01); F23M 20/005 (2015.01); F23R 3/002 (2013.01); F23R 3/06 (2013.01); F05D 2250/13 (2013.01); F05D 2250/324 (2013.01); F05D 2260/202 (2013.01); F23R 2900/00014 (2013.01); F23R 2900/03042 (2013.01); Y02T 50/675 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A conduit through which hot combustion gases pass in a gas turbine engine, the conduit comprising:
a wall structure having a central axis and defining an inner volume of the conduit for permitting hot combustion gases to pass through the conduit, said wall structure comprising:
a forward end;
an aft end axially spaced from said forward end, said aft end defining a combustion gas outlet for the hot combustion gases passing through the conduit;
a resonator structure including a plurality of resonator boxes for attenuating acoustic vibrations within the engine; and
a plurality of generally radially outwardly extending protuberances located in a circumferential band in said wall structure, said protuberances each including at least one cooling fluid passage formed therethrough for permitting cooling fluid to enter said inner volume, wherein at least one of said protuberances is shaped so as to cause cooling fluid passing through it to diverge in a circumferential direction as it enters into said inner volume and wherein said protuberances are aligned with said resonator structure; and
wherein at least one of said protuberances defines a front portion, a pair of side portions, a radially outer portion including a radially outermost wall portion, and a back portion, each of said front and back portions extending at an angle with respect to said central axis, and said cooling fluid passage of said protuberance extends through said radially outermost wall portion of said protuberance.