Airbus Operations Sl

Luis Manuel Rodríguez Urbina

Vicente Martínez Valdegrama

Olaf Andreas Dietrich Carreño

Its object is to allow measurement of the volume of fuel () using optic fiber cables (); it is characterized in that, adhered to one or more of the inner faces of the tank () there is at least one sheet () in which a plurality of optic fiber cables () with different lengths are included, located between the inner face of the tank and the sheet (). One set of the ends () of the optic fiber cables () are disposed so that they are in contact with the fuel () when it reaches their level, thereby allowing measurement of the fuel level at all times. The preferred embodiment distributes the optic fiber cables () on two opposing lateral faces of the tank () so that they cross over one another and in opposite directions to measure any fuel level. It is applied in aeronautics.

Liquid fuel tank for measuring fuel volume

Provided herein are drainage valves for removing water accumulated in the lower part of fuel tanks of an aircraft. The valves can be affixed in correspondence with a lower skin forming part of the tanks. The lower skin includes recesses for the complementary housing of the heads of the valves that, in combination with some axial fastening nuts, immobilize the valves to that skin. The recesses can comprise a conical structure obtained by deformation of the lower skin, and with the deformation an inner elevated seat is further obtained, on which seat the axial fastening nuts press, maintaining the thickness of the skin in the area where the valves are located, thus preventing the area from weakening as it happens conventionally.

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Leganés, Spain

Luis Manuel Rodríguez Urbina