Wiring arrangement for protecting a bleed air supply system...

B - Operations – Transporting – 64 – D

Patent

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Details

B64D 13/06 (2006.01)

Patent

CA 2650413

The present invention relates to a wiring arrangement (50) for protecting a bleed air supply system (10) of an aircraft against overheating, the bleed air supply system (10) comprising a bleed air source (12), a bleed air feed (14), a shutoff valve (16) arranged in the bleed air feed (14) and a leakage monitoring device (38) with a monitoring control device (39), which is connected via a shutoff circuit (18) to the shutoff valve (16) in such a way that the shutoff valve (16) is closed when the shutoff circuit (18) is interrupted, it being provided that the wiring arrangement (50) comprises a thermal switch (52), which is connected in series with the shutoff valve (16) and the monitoring control device (39) to the shutoff circuit (18) and which, once a predetermined limit temperature (TG) has been exceeded, interrupts the shutoff circuit (18).

La présente invention comprend un agencement de câblage (50) pour protéger un système d'alimentation en air de prélèvement (10) d'un avion contre la surchauffe, le système (10) comprenant une source d'air de prélèvement (12), une alimentation en air de prélèvement (14), une vanne d'arrêt (16) placée dans l'alimentation en air de prélèvement (14) et un dispositif de surveillance des fuites (38) avec un dispositif de commande de surveillance (39), relié via un circuit d'arrêt (18) sur la vanne d'arrêt (16) de manière à ce que la vanne d'arrêt (16) soit fermée lorsque le circuit d'arrêt (18) est interrompu ; il est prévu que l'agencement de câblage (50) comprenne un commutateur thermique (52), relié en série à la vanne d'arrêt (16) et un dispositif de commande de surveillance (39) sur le circuit d'arrêt (18) et qui, une fois la température limite prédéterminée (TG) dépassée, interrompe le circuit d'arrêt (18).

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