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US 2014/0177146 A1Published application
Flight data recorder
AssigneeAirbus Operations GmbH
InventorsLaurent BARIZZA, Frederic AUBESPIN
Life of this patent
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Abstract
The invention relates to a flight data recorder. It is equipped with capsules designed to break at determined depths. The capsules release hydraulic tracing elements, generating a luminous streak in the water, when they are broken, so that the searches for the flight data recorders, or black boxes, are made easier.
Claims7
A flight data recorder comprising:
- a frame,
- a recorder, and
- at least one case having at least one capsule, each capsule having a body which is substantially cylindrical, said body defining a leak-tight housing containing a volume of air at a predefined pressure and a hydraulic tracing element, the body of each capsule comprising at least one compression mode rupture zone,
- wherein a case arranged into the case along its entire length between a first end and a second end of the case, each of the capsule being inserted into each of said housing, a plurality of through openings being arranged on the case.
1 more element
An aircraft flight data recorder comprising:
- a frame,
- a recorder mounted on said frame, and
- at least one capsule mounted on said frame, said at least one capsule comprising a body, said body defining a leak-tight housing containing both a volume of air at a predefined pressure and a hydraulic tracing element, the body of said at least one capsule including at least one compression mode rupture zone, wherein, when immersed to a predetermined depth in water, the water pressure at the predetermined depth is greater than said predefined pressure of air in the capsule causing the capsule to rupture releasing said hydraulic tracing element.
Dependencies are inferred from the claim text.