Method and device for using hot air to de-ice the leading edges of a jet aircraft
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United States of America Patent
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Oct 13, 2015
Grant Date -
Jul 24, 2014
app pub date -
Dec 18, 2013
filing date -
Dec 18, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A de-icing device includes a hot air circuit including an inlet for hot air bled from an engine, and a duct connecting the inlet to an outlet of the circuit which opens towards the leading edge. The device also includes electrical heating means associated with the duct, and control means for controlling the heating means connected to detection means that detect the temperature of the hot air downstream of the heating means and are able to activate these if the detected temperature of the bled air is below a value corresponding to a minimum temperature required for de-icing, increased by a predetermined margin. The range of temperatures of the hot air supplied to the leading edge is lowered overall, whereas the minimum de-icing temperature is assured. Composite materials can be used near the leading edge without being damaged.
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