US 12,110,844 B2
Zoned liner exhaust with buried N-core
Christopher C. Koroly, Spring Valley, CA (US); and Jose S. Alonso-Miralles, Chula Vista, CA (US)
Assigned to ROHR, INC., Chula Vista, CA (US)
Filed by ROHR, INC., Chula Vista, CA (US)
Filed on Nov. 15, 2022, as Appl. No. 17/987,671.
Prior Publication US 2024/0159202 A1, May 16, 2024
Int. Cl. F02K 1/82 (2006.01)
CPC F02K 1/827 (2013.01) [F05D 2220/323 (2013.01); F05D 2260/96 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A center plug for attenuating noise in a gas turbine engine, comprising:
an inner skin, the inner skin having a substantially cylindrical shape and extending along an axial centerline;
a forward bulkhead disposed proximate a forward end of the inner skin, the forward bulkhead connected to and extending radially outward from the inner skin;
an aft bulkhead disposed proximate an aft end of the inner skin, the aft bulkhead connected to and extending radially outward from the inner skin;
an outer skin, the outer skin connected to and positioned radially outward of the forward bulkhead and the aft bulkhead;
a plurality of baffles spaced circumferentially about the inner skin and extend radially between the inner skin and the outer skin and axially between the forward bulkhead and the aft bulkhead; and
a noise attenuation panel disposed on a first side of each baffle of the plurality of baffles, the noise attenuation panel positioned such that noise is received in a rotating pattern in a first direction.