Patent ID: 9267403
Filing Date: 2016-02-23
CPC Classification: B64C,B64D,F01M,F16H,G01M

Claim Text:
1. A device for monitoring the sealing state of a casing housing lubricated moving members of a transmission box of a rotorcraft, the device comprising: an airflow circuit open to the atmosphere at its downstream end, the airflow circuit having leaktight coupling means at its upstream end for coupling in a leaktight manner to a vent of the casing, and being fitted with a suction generator member for generating suction inside the airflow circuit, operation of the suction generator member being under the control of control means; regulator means for regulating the suction that is maintained stable inside the airflow circuit relative to a setpoint threshold (S), operation of the regulator means being controlled at least to depend on a pressure gauge for measuring the suction generated inside the airflow circuit; and information generator means for generating information at least about the operation of the suction generator member by the regulator means.