ROTATING WALL AIR DEFLECTING DEVICE CONTROLLED BY ANTAGONIST SPRINGS, ONE OF WHICH IS DEFORMABLE BY JULY EFFECT

摘要

An air deflection device (DD) comprises a wall (PD) rotatably mounted on an element to be placed in at least one deployed and folded position in which, respectively, it deflects and does not deflect an air flow, a first spring (R1) which is able to exert on the wall (PD) a first couple to place it in the folded position, a second spring (R2) which is made of shape memory alloy and which is clean when it is the object of an internal heating, to have a shape adapted to exert on the wall (PD) a second pair, greater than the first pair and opposite to the latter, to place it in the deployed position, and a first electrical circuit ( C1) arranged to circulate on order in the second spring (R2) a clean electric current to induce its internal heating by Joule effect.