US 12,454,926 B1
Exhaust nozzle assembly for an aircraft propulsion system
Russell Stratton, Toronto (CA); and Omer Abdul Wahab, Montreal (CA)
Assigned to Pratt & Whitney Canada Corp., Longueuil (CA)
Filed by Pratt & Whitney Canada Corp., Longueuil (CA)
Filed on Apr. 30, 2024, as Appl. No. 18/651,069.
Int. Cl. F02K 1/00 (2006.01); F02C 3/20 (2006.01); F02C 9/18 (2006.01); F02C 9/40 (2006.01); F02C 9/52 (2006.01); F02K 1/82 (2006.01); F02C 3/06 (2006.01)
CPC F02K 1/00 (2013.01) [F02C 3/20 (2013.01); F02C 9/18 (2013.01); F02C 9/40 (2013.01); F02C 9/52 (2013.01); F02K 1/822 (2013.01); F02C 3/06 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An aircraft propulsion system comprising:
a gas turbine engine including a compressor section, a combustor section, a turbine section, and an exhaust section, the compressor section, the combustor section, the turbine section, and the exhaust section form a core flow path through the gas turbine engine; and
an exhaust nozzle assembly disposed at the exhaust section, the exhaust nozzle assembly extending along an axis, the exhaust nozzle assembly includes a nozzle bypass system and an exhaust treatment system, the nozzle bypass system is selectively configurable in a bypass mode or an exhaust treatment mode,
the nozzle bypass system in the bypass mode directs a core combustion gas from the core flow path through the exhaust nozzle assembly bypassing the exhaust treatment system, and
the nozzle bypass system in the exhaust treatment mode directs the core combustion gas through the exhaust nozzle assembly and exhaust treatment system;
wherein the nozzle bypass system includes an inlet, a first outlet, and a second outlet, the nozzle bypass system in the bypass mode directs the core combustion gas from the inlet through the second outlet bypassing the exhaust treatment system, and the nozzle bypass system in the exhaust treatment mode directs the core combustion gas from the inlet through the first outlet and the exhaust treatment system; and
wherein the exhaust treatment system is disposed within the exhaust nozzle assembly axially between the inlet and the first outlet.