Patent ID: 11866177
Assignee: AIRBUS OPERATIONS S.L.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 2:
3. A depressurizing method for a cabin of an aircraft on the ground from the outer side of the aircraft, using a depressurizing system comprising a venting valve having a shutter actuatable between an open position and a closed position, the venting valve connected in fluid terms, via connection means, to a vacuum pump, the aircraft being provided with a protection valve against excess pressure in the cabin which is connected to a pressure tap port, the method comprising the steps:
fluidly connecting, via the connection means, the venting valve to the pressure tap port of the aircraft, the shutter being in the open position;
moving the shutter of the venting valve from the open position to the closed position thereof; and
activating the vacuum pump to produce a reduced pressure in an inner volume of the connection means and the venting valve to generate a reduced pressure in a region of the pressure tap port of the aircraft,
wherein the shutter is provided with a locking means which is configured to hold the shutter in the open position, and
wherein the method comprises, before the step of moving the shutter, a step of deactivating the locking means to enable a movement of the shutter from the open position to a closed position thereof.