KOCHETOV'S SOUND-ABSORBING BARRIER Russian patent published in 2015 - IPC F16P1/02 E01F8/00 

FIELD: machine building.

SUBSTANCE: sound-absorbing barrier contains the casing installed on the anti-vibration support designed as a box-shaped frame. Between the frame walls the sound-absorbing structure is located. The casing is freely supported by the shelves placed between the frame walls along the support perimeter. On the shelves the shock-absorbers made of soft rubber are fixed. The sound-absorbing structure has the acoustic cladding rigidly fixed on the frame walls along the support perimeter with formation of ventilating channels. The anti-vibration support is installed on continuous elastic gasket from foam rubber and is fastened to the base by means of bolts and rubber-metal washers. The casing frame is designed either integral, or consisting of separate sections. Each of the acoustic panels is made as rigid and perforated walls, between which the layers of sound reflecting and sound-absorbing materials of different density arranged in two layers are located. The layers of sound reflecting material are of complex profile composed of evenly distributed hollow tetrahedrons. The sound-absorbing element along its whole surface is lined by an acoustically transparent material.

EFFECT: higher sound-insulation efficiency.

2 cl, 5 dwg