B - Operations – Transporting – 64 – D
Patent
B - Operations, Transporting
64
D
B64D 33/04 (2006.01) F02K 1/06 (2006.01) F02K 1/44 (2006.01)
Patent
CA 2756214
A jet engine nozzle exit configuration includes a turbofan engine exhaust nozzle that includes first and second internal flow surfaces. The first internal flow surface is positioned to receive a fan flow and terminates at a first exit aperture having a first perimeter. The first perimeter includes multiple first projections extending in an aft direction, with an aft portion of individual neighboring first projections spaced apart from each other by a gap, and with a geometric feature of the multiple first projections varying in a first manner along a portion of the first perimeter. The second internal flow surface is positioned to receive an engine core flow and terminates at a second exit aperture having a second perimeter including multiple second projections extending in an aft direction, with an aft portion of individual neighboring second projections spaced apart from each other by a gap, and with a geometric feature of the multiple second projections varying in a second manner different than the first manner along a portion of the second perimeter.
Smart & Biggar
The Boeing Company
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