US 11,702,992 B2
Combustor wall core with resonator and/or damper elements
Julian Winkler, Glastonbury, CT (US); Kenji Homma, Glastonbury, CT (US); Craig A. Reimann, Vernon, CT (US); and Jeffrey M. Mendoza, Manchester, CT (US)
Assigned to Raytheon Company, Waltham, MA (US)
Filed by Raytheon Company, Waltham, MA (US)
Filed on Dec. 3, 2021, as Appl. No. 17/541,758.
Prior Publication US 2023/0175440 A1, Jun. 8, 2023
Int. Cl. F23R 3/00 (2006.01); F02C 7/24 (2006.01); F02C 7/16 (2006.01)
CPC F02C 7/24 (2013.01) [F02C 7/16 (2013.01); F23R 3/002 (2013.01); F23R 3/005 (2013.01); F23R 2900/00014 (2013.01)] 13 Claims
OG exemplary drawing
 
9. An assembly for an engine, comprising:
a combustor wall including a first skin, a second skin, a core and a sound attenuation passage;
the first skin forming a peripheral boundary of a combustion volume on a first side of the combustor wall;
the second skin forming a peripheral boundary of a plenum on a second side of the combustor wall;
the core including a plurality of resonator elements between the first skin and the second skin, the plurality of resonator elements comprising a first resonator element, the first resonator element including a first base, a plurality of first protrusions and a second protrusion, the plurality of first protrusions projecting out from the first base, each of the plurality of first protrusions including a first bore fluidly coupled with a first cavity within the first base, and the second protrusion projecting out from the first base and at least one of the plurality of first protrusions; and
the sound attenuation passage extending within the core and fluidly coupled with the combustion volume through an attenuation passage aperture in the first skin, and the sound attenuation passage fluidly decoupled from the plenum by the second skin.
 
11. An assembly for an engine, comprising:
a combustor wall including a first skin, a second skin, a core and a sound attenuation passage;
the first skin forming a peripheral boundary of a combustion volume on a first side of the combustor wall;
the second skin forming a peripheral boundary of a plenum on a second side of the combustor wall;
the core including a plurality of resonator elements between the first skin and the second skin, the plurality of resonator elements comprising a first resonator element, the first resonator element including a first base and a plurality of first protrusions projecting out from the first base, each of the plurality of first protrusions including a first bore fluidly coupled with a first cavity within the first base; and
the sound attenuation passage extending within the core and fluidly coupled with the combustion volume through an attenuation passage aperture in the first skin, and the sound attenuation passage fluidly decoupled from the plenum by the second skin;
wherein the core further includes a plurality of damper elements between the first skin and the second skin, the plurality of damper elements comprising a first damper element;
wherein the first damper element includes a first damper base and a plurality of first damper protrusions projecting out from the first damper base; and
wherein the first damper base is configured with a first mass and a first shell, the first mass is within the first damper base and embedded within the first shell.