Aeronautics and astronautics – Aircraft power plants
Reexamination Certificate
2005-12-30
2009-10-06
Dinh, Tien (Department: 3644)
Aeronautics and astronautics
Aircraft power plants
C060S751000
Reexamination Certificate
active
07597283
ABSTRACT:
An auxiliary power unit intake duct for an aircraft, comprisingan internal straight portion1a, an internal first bend portion1band an internal second bend portion1c, extending between an air inlet2and a plenum entry3of the auxiliary power unit,a plurality of acoustic guides vanes4,5located in the straight portion1aof the intake duct1, extending horizontally between opposite side portions of the straight portion1a;and a plurality of curved aerodynamic guide vanes6,7located in the second bend portion1cproximate to said plenum inlet3, extending vertically between a top portion and a bottom portion of the second bend portion1c, each of the curved aerodynamic guide vanes6,7being concentric with said bend curvature of the second bend portion1c.
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Hernanz Manrique Jose Angel
Kruse Jürgen Heinrich
Airbus Espana S.L.
Dinh Tien
Klauber & Jackson LLC
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