Nacelle for turbofan

B - Operations – Transporting – 64 – D

Patent

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Details

B64D 29/06 (2006.01)

Patent

CA 2671556

The nacelle of the invention includes an air-inlet front section, a middle section for encasing the fan of the turbofan (7) and a rear section including means for connection to a pylon to be connected to the rigid structure or an airplane. The rear section includes a structural framework (18) having at least one aerodynamic smoothing and acoustic panel (21). The acoustic panel (21) is secured on the structural framework (18) by floating or elastic fixation means so that said acoustic panel (21) can be deformed in a direction (31) essentially centrifugal and radial relative to he turbofan (7) in the presence of overpressure air (3) in the engine compartment.

La nacelle comprend une section avant d'entrée d'air, une section médiane destinée à entourer une soufflante du turboréacteur (7) et une section arrière possédant des moyens d'accrochage à un pylône destiné à être lié à une structure fixe d'un avion. La section arrière comprend une ossature structurante (18) sur laquelle est monté au moins un panneau de lissage aérodynamique et acoustique (21). Le panneau acoustique (21) est fixé sur l'ossature structurante (18) par des moyens de fixation flottante ou élastique, de manière à permettre au panneau acoustique (21) de se déformer selon une direction (31) sensiblement radiale centrifuge relativement au turboréacteur (7) en présence d'air en surpression (3) dans le compartiment moteur.

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