Methods and devices are described that are aimed at preventing the outbreak of fire in a hydraulic rotor brake. These methods and devices can be used in the rotor brake (150) of a helicopter (100) and comprise a first and second seal (250, 260), with a drain groove (290) positioned in between these two seals (250, 260) to drain leaked fluid away from the hot parts of the brake. In the brakes described, the second seal (260) is positioned closer to the heat sink (230) of the brake than the first seal (250). The drain groove (290) is also connected via a channel (291) or channels (291-294) to a drain outlet (298) or outlets (298).
HYDRAULIC ROTOR BRAKE WITH ADDITIONAL FIRE BARRIER
HYDRAULISCHE ROTORBREMSE MIT ZUSÄTZLICHER BRANDBARRIERE
FREIN À ROTOR HYDRAULIQUE COMPORTANT UNE BARRIÈRE COUPE-FEU SUPPLÉMENTAIRE
2020-12-30
Patent
Elektronische Ressource
Englisch