Power plants – Reaction motor – Interrelated reaction motors
Patent
1984-06-12
1989-04-11
Casaregola, Louis J.
Power plants
Reaction motor
Interrelated reaction motors
60262, F02C 128, F02C 302
Patent
active
048194255
ABSTRACT:
A noise suppression high efficiency mixer nozzle for high bypass turbofan jet propulsion engines that minimizes energy losses by the provision of one or more vent openings located along the crests of the inner duct nozzle lobes to inject secondary flow into and along the primary flow boundary layers within the lobe crest interiors ahead of the locations where boundary layer flow separation otherwise tends to occur. Primary and secondary flow mixing initiated by secondary flow injection is completed within the converging terminal portion of the surrounding outer duct where the fan-shaped primary and secondary flow segments come together.
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Farquhar Bannister W.
Sokhey Jagdish S.
Casaregola Louis J.
The Boeing Company
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