Power plants – Reaction motor – Particular exhaust nozzle feature
Reexamination Certificate
2008-01-25
2010-11-09
Rodriguez, William H (Department: 3741)
Power plants
Reaction motor
Particular exhaust nozzle feature
C181S213000, C239S265130
Reexamination Certificate
active
07827802
ABSTRACT:
The invention relates to a variable-section flow mixer for a double-flow turbojet for a supersonic airplane, the mixer comprising a central body, a primary cover, a secondary cover, and a nozzle extending the secondary cover. The nozzle has a plurality of external-air admission openings having mounted therein lobes that are movable between two positions: a closed position in which they close the openings; and a deployed position in which they disengage said openings and deploy into the nozzle so as to allow external air to be admitted. All of the lobes present a common azimuth component in a common direction, and the mixer further includes a plurality of longitudinal grooves occupying at least a portion of the central body, all of the grooves presenting a common azimuth component in a common direction that is opposite to the direction of the azimuth component of the lobes.
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Dussillols Laurent Christophe
Longeville Olivier Roland
Vuillemin Alexandre Alfred Gaston
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Rodriguez William H
SNECMA
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