Foam composite insulation for aircraft

Details Foam composite insulation for aircraft Foam composite insulation for aircraft

B - Operations, Transporting

64

C

B64C 1/40 (2006.01)

Patent

CA 2561399

Insulation for use in an aircraft fuselage is formed wherein at least one layer (40) made from an open-celled foam (39) that provides acoustic and thermal insulation. The open-celled foam (39) is compression fitted into the airplane fuselage so as to provide effective attachment to the fuselage. The open-celled foam (39) requires minimal attachment treatments. Further, compression fit of the open cell layer (40) is used as an interface around brackets and unrelated hardware to provide superior close-out of gaps that would normally occur using traditional insulation to bracket interfaces. The preferred foam for the open celled compression layer is also relatively moisture resistant (i.e. hydrophobic) in nature and is compressible to between about 0.5 and 10 percent compression, with about 2% compression being ideal for most applications.

Un isolant que l'on utilise dans le fuselage d'un aéronef dont au moins une couche (40) est obtenue à partir d'une mousse à cellules ouvertes (39) assurant un isolement acoustique et thermique. La mousse (39) s'adapte par compression au fuselage de l'aéronef de manière à assurer une fixation efficace au fuselage. La mousse (39) nécessite des traitements minimaux de fixation. Par ailleurs, l'adaptation par compression de la couche (40) sert d'interface autour des supports et de matériel sans rapport afin de garantir une fermeture supérieure des espacements qui auraient normalement lieu si on utilisait un isolement traditionnel sur les interfaces de support. La mousse préférée pour la couche de compression est également relativement résistante à l'humidité (p.ex. hydrophobe) et peut être comprimée entre environ 0,5 et 10 % de compression, avec au moins 2 % de compression idéale pour la plupart des applications.

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