US 11,840,937 B2
Diffuser nozzle for a gas turbine engine
Russell Stratton, Toronto (CA)
Assigned to PRATT & WHITNEY CANADA CORP., Longueuil (CA)
Filed by Pratt & Whitney Canada Corp., Longueuil (CA)
Filed on Dec. 17, 2021, as Appl. No. 17/554,816.
Prior Publication US 2023/0193787 A1, Jun. 22, 2023
Int. Cl. F01D 25/30 (2006.01); F01N 3/24 (2006.01)
CPC F01D 25/30 (2013.01) [F01N 3/24 (2013.01); F01N 2470/02 (2013.01); F01N 2570/14 (2013.01); F01N 2590/00 (2013.01); F05D 2220/323 (2013.01); F05D 2260/609 (2013.01); F05D 2260/61 (2013.01); F05D 2270/082 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A diffuser nozzle for a gas turbine engine, the diffuser nozzle comprising:
a housing disposed about a nozzle axis and extending between a first nozzle end and a second nozzle end, the housing comprising a nozzle inlet located at the first nozzle end and a nozzle outlet located at the second nozzle end, the housing defining a nozzle duct extending from the nozzle inlet to the nozzle outlet; and
a plurality of walls disposed within the nozzle duct, the plurality of walls subdividing the nozzle duct into a plurality of duct sections with each duct section of the plurality of duct sections extending from the nozzle inlet to the nozzle outlet and having a duct cross-sectional area, the plurality of walls further defining a plurality of axially-extending duct segments of the nozzle duct,
within a first axially-extending duct segment of the plurality of axially-extending duct segments, the duct cross-sectional area of a first duct section of the plurality of duct sections is greater than the duct cross-sectional area of each other duct section of the plurality of duct sections, and
within a second axially-extending duct segment of the plurality of axially-extending duct segments, the duct cross-sectional area of a second duct section of the plurality of duct sections is greater than the duct cross-sectional area of each other duct section of the plurality of duct sections.