Power plants – Reaction motor – Interrelated reaction motors
Reexamination Certificate
2011-01-18
2011-01-18
Cuff, Michael (Department: 3741)
Power plants
Reaction motor
Interrelated reaction motors
C060S770000, C239S265170
Reexamination Certificate
active
07870722
ABSTRACT:
Systems and methods for passively directing aircraft engine nozzle flow are disclosed. One system includes an aircraft nozzle attachable to an aircraft turbofan engine, with the nozzle including a first flow path wall bounding a first flow path and being positioned to receive engine exhaust products, and a second flow path wall bounding a second flow path and being positioned to receive engine bypass air. The first flow path wall is positioned between the first and second flow paths, and the second flow path wall is positioned between the second flow path and an ambient air flow path. Multiple flow passages can be positioned in at least one of the first and second flow path walls to passively direct gas from a corresponding flow path within the flow path wall through the flow path wall to a corresponding flow path external to the flow path wall. Neighboring flow passages can have neighboring circumferentially-extending and circumferentially-spaced exit openings positioned at an interface with the corresponding flow path external to the flow path wall.
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Birch Stanley F.
Khritov Konstantin M.
Lyubimov Dmitriy A.
Maslov Vladimir P.
Mironov Aleksey K.
Cuff Michael
Kim Craig
Perkins Coie LLP
The Boeing Company
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