IMPROVED SYSTEM FOR THE DUAL MANAGEMENT OF ANTI-ICING AND BOUNDARY-LAYER SUCTION ON AN AEROFOIL OF AN AIRCRAFT

摘要

For the dual anti-icing and boundary layer suction management, the invention proposes a system for the airfoil surface (4) of an aircraft, comprising: a channel (42) with a dual anti-icing function and suction of the boundary layer; - a dual-function main line (30) to which a boundary layer suction control device (26) and an anti-icing control device (28) are connected; an anti-icing air intake duct (38) connecting the main duct (30) and the duct (42); - a check valve (50) allowing the passage of anti-icing air from the main line (30) to the duct (38); at least one suction air collection duct (56) connecting the duct (42) and the main duct (30); and a non-return valve (60) allowing passage of the suction air from the duct (56) to the main duct (30).