Patent ID: 6338455
Filing Date: 2002-01-15
Classification: B64D,H05B

Abstract:
A heating device for an aerodynamic profile (10) including, incorporated into the aerodynamic profile in the vicinity of a leading edge (6) of the aerodynamic profile, several resistive elements (14,15;44;74;84;94;104) forming a first set (18) of resistive elements running approximately parallel to the leading edge, each of said resistive elements being provided at its proximal end with means of connection (28,30) to an electrical supply (20), so-called first electrical supply, the device comprising in addition a cyclical supply control (21,22) in order to supply, from the aforesaid first electrical supply (20), at least some of the resistive elements of the first set (18), one after the other, according to a specified sequence so that the first set of resistive elements forms a de-icing circuit, in which the heating device includes in addition a second set (19) of resistive elements (16,17;46;56;66;76;86;96;106) incorporated into the aerodynamic profile in the vicinity of the leading edge (6) of the aerodynamic profile and running approximately parallel to the leading edge, each of said resistive elements being provided at its proximal end with means of connection (28,30) to a second electrical supply (23), all the resistive elements of the second set (19) being collectively and selectively supplied by the second electrical supply (23) so that the second set of resistive elements forms an anti-icing circuit, and in which the distal ends of each of the resistive elements of the first (18) and second (19) sets are connected to electrical returns to the first (20) and second (23) electrical supplies, the electrical returns of the first set being independent of the electrical returns of the second set.