NOISE SUPPRESSOR

摘要

FIELD: physics; heating. ^ SUBSTANCE: suppressor is intended for decrease of aerodynamic noise in air ducts of mechanical ventilation and air conditioning systems. Suppressor contains the body in cavity of which there are mounted acoustic dissipation elements pairwise contacting at inlet, forming tapering air passage channels and provided with convex fairings in contact points, as well as swing-out mechanism consisting of levers and control rods rigidly mounted at end faces of acoustic dissipation elements by washers and cotters. ^ EFFECT: higher efficiency of noise suppression within all the operation modes of ventilation and air conditioning systems. ^ 3 dwg