Eurocopter

Patrice Rauch

Jean-Cyril Pierre Bauchet

This concerns a heating device for an aerodynamic profile ( ) including, incorporated into the aerodynamic profile near the leading edge ( ) of the aerodynamic profile, several resistive elements forming a first set ( ) of resistive elements ( ) running approximately parallel to the leading edge, arranged in a way to form a de-icing circuit. The device includes in addition a second set ( ) of resistive elements ( ) incorporated into the aerodynamic profile and arranged as an anti-icing circuit. The two circuits ( ) are independent and the relative positions of their elements are a function of the design of the profile.

Heating device with resistive elements for an aerodynamic profile

To combat the formation of ice on an aerofoil, several resistive elements each consisting of electrically conducting fibers parallel to the leading edge and through which an electric current is made to flow to dissipate heat by a Joule effect are incorporated into this aerofoil close to its leading edge. In order to obtain a thermal power which can vary along the leading edge, the resistive elements are produced by superposing several layers of conducting fibers, at least one of which layers has a constant width, and at least one other of which has a width which varies continuously along the leading edge, but remains smaller than said constant width.

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Fuveau, France

Patrice Rauch