US 12,308,007 B2
Acoustic attenuation structures
Anthony R. Bifulco, Ellington, CT (US)
Assigned to RTX CORPORATION, Farmington, CT (US)
Filed by RTX Corporation, Farmington, CT (US)
Filed on Dec. 4, 2023, as Appl. No. 18/528,479.
Application 18/528,479 is a division of application No. 17/038,556, filed on Sep. 30, 2020, granted, now 11,887,571.
Claims priority of provisional application 63/077,234, filed on Sep. 11, 2020.
Prior Publication US 2024/0105154 A1, Mar. 28, 2024
Int. Cl. G10K 11/16 (2006.01); B64D 27/10 (2006.01); B64D 29/00 (2006.01); B64D 33/02 (2006.01); F02C 7/045 (2006.01); F02C 7/24 (2006.01)
CPC G10K 11/16 (2013.01) [B64D 27/10 (2013.01); B64D 29/00 (2013.01); B64D 33/02 (2013.01); F02C 7/045 (2013.01); F02C 7/24 (2013.01); B64D 2033/0206 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A gas turbine engine, comprising:
a nacelle;
an engine case; and
a first acoustic structure, the first acoustic structure including:
a cellular structure having a plurality of cells, and
a housing configured to house the cellular structure, the housing including:
a first rail configured for attachment to the engine case;
a second rail configured for attachment to the engine case; and
a first edge retainer configured to secure a first side of the housing to the engine case and a second edge retainer configured to secure a second side of the housing to the engine case, wherein the first edge retainer and the second edge retainer include an upper rail configured to engage the housing and the first edge retainer and the second edge retainer include a center rail configured to engage the engine case.