Protection Device against Electrical Discharges in Aircraft
OwnerJose Ignacio Lopez-Reina Torrijos, Oscar Berenguer Mongeinventors
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Abstract
This invention relates to a protection device against electrical discharges to an aircraft, especially against lightning, applicable to an external structural surface element (1), completely or partially built from a composite, comprising at least one metallic attachment element (7) with countersinking, a fine metallic mesh (2) for outer protection of said surface (1), a thick metallic mesh (5) in an area around the attachment elements (7); a metallic part (11) fixed to the inner face of the surfacing (1) by means of an attachment element (7); and a metallic washer (9) surrounding the countersunk area of the attachment element (7) with which said metallic meshes (2, 5) come into contact.
Claims5
- A protection device against electrical discharges, especially against lightning, of an aircraft structural surface element (1), completely or partially built from a composite, comprising at least one metallic attachment element (7) with countersinking, a thin metallic mesh (2) for outer protection of said surfacing (1), characterized in that it also comprises the following elements:
- a) a thick metallic mesh (5) in an area around the attachment elements (7);
- b) a metallic part 11 fixed to the inner face of the surface (1) by means of an attachment element (7);
- and
- c) a metallic washer (9) surrounding the countersunk area of the attachment element (7) with which said metallic meshes (2, 5) come into contact.
- A device according to claim 1, characterized in that said metallic meshes (2, 5) are made of bronze.
- A device according to claim 1, characterized in that the thick metallic mesh (5) is overlapped on the fine metallic mesh (2) in at least 50 mm along an imaginary line of connection of attachment elements.
- A device according to claim 1, characterized in that the attachment elements (7) are titanium screws or rivets.
- A device according to claim 1, characterized in that the metallic part (11) is made of aluminum and the device also comprises an isolating sheet (13) between it and the surface (1).