Improved fire-blocking insulation blanket and method for...

B - Operations – Transporting – 64 – C

Patent

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Details

B64C 1/40 (2006.01)

Patent

CA 2375747

An insulation blanket (20) is disclosed that contains fire-blocking materials for preventing rapid penetration of fire into an aircraft fuselage (28) in case of fire outside the aircraft. The insulation blanket (20) contains at least one layer (24) of fiberglass or other thermal-acoustic insulation material without fire-blocking properties, and one or more layers (33) of fire-blocking material. The fire blocking material (33) is wider than the thermal-acoustic insulation (24) so that it may be folded against and attached to adjacent structural frame members (31) of the fuselage. In the alternative, a thermal-acoustic insulation material (24) is used that has fire-blocking properties instead of the separate layers of fire-blocking and thermal-acoustic insulation materials. A method for installing insulation blankets according to the present invention is disclosed, whereby a fire-blocking insulation portion of the blanket is folded against and attached to frame members (31) of the aircraft using attachment posts or spring clips.

L'invention concerne une garniture d'isolation (20), contenant des matériaux ignifuges qui empêchent la pénétration rapide du feu dans le fuselage d'un aéronef (28) en cas de feu à l'extérieur de cet aéronef. Ladite garniture d'isolation (20) contient au moins une couche (24) de fibre de verre ou un autre matériau d'isolation thermo-acoustique sans propriétés ignifuges, et au moins une couche (33) de matériau ignifuge. Ce matériau ignifuge (33) est de dimension plus grande que le matériau d'isolation thermo-acoustique (24), de sorte qu'on peut le replier contre des éléments de cadre structurels (31) adjacents du fuselage, et le fixer audits éléments. Selon un autre mode de réalisation, on utilise un matériau d'isolation thermo-acoustique (24) possédant des propriétés ignifuges au lieu de couches séparées de matériaux d'isolation thermo-acoustique et ignifuges. L'invention concerne également un procédé d'installation de garniture d'isolation, une partie de ladite garniture d'isolation ignifuge étant repliée contre des éléments de cadre (31) de l'aéronef et fixée à ceux-ci à l'aide de montants de fixation ou de pinces à ressort.

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