Airbus Operations Sl

Ignacio Esteban Parra Fabian

Jose Grana Otero

Carlos Casado Montero

Carlos Montero

Miguel Angel Gallego Lorenzo

Jose Angel Hernanz Manrique

A drainage mast able to drain effectively the liquid contained in the compartment of an aircraft when the pressure within the compartment is lower than the outside pressure without using any pressure control active device and without causing any significant perturbation to the aerodynamic behavior of the aircraft. The drainage mast is configured with a cross section area decreasing from its entry section to the compartment to its outlet section and is disposed at an acute angle &#x3b1; relative to the compartment in the airflow direction. The entry and outlet sections have two perpendicular symmetry axes of different length, the entry section is arranged with its longer axis of symmetry substantially parallel to the airflow direction. The drainage mast has a symmetrical configuration with respect to a plane substantially perpendicular to the fuselage envelope passing through the longer axis of symmetry of the entry section.

Drainage mast of the compartment of an aircraft subjected to a negative pressure

A drainage mast for draining liquids from an APU compartment of an aircraft with a first end connected to the APU compartment and a second end for discharging the liquids to the atmosphere. The drainage mast is configured with at least a sector having decreasing cross section areas towards the second end. The area of the initial cross section of the sector is lesser than the area of any cross section of the drainage mast closer to the first end. The invention also refers to an aircraft comprising the drainage mast.

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Getafe, Spain

Ignacio Esteban Parra Fabian