LIGHT SOUNDPROOF LINING FOR BODY PART OF CAR AND METHOD OF ITS REALISATION Russian patent published in 2012 - IPC G10K11/168 

FIELD: construction.

SUBSTANCE: substance: lining (1) for a car body part, in particular, in the form of light lining of a front body wall, covering one layer (1.1) of a sound absorber, one, connected directly with the sound absorber layer, substantially air impermeable (1.2) layer of sound insulation and one layer (1.3) of foam material adjacent to it, besides, the layer (1.1) of the sound absorber is formed from a porous absorber, preferably of a fibre non-woven material or a foam material having at the test pressure 100 Pa air permeability in the range from 150 to 2000 litre/m²s. The layer (1.2) of sound insulation consists of an integral surface layer with thickness of at least 0.5 mm near the layer (1.3) of the foam material and by means of foaming of a porous absorber is connected detachably, with a closure along the material, with the porous material of the absorber, substantially, without foam penetration. The invention relates also to the method of making such lining.

EFFECT: invention provides for the possibility of higher sound insulation of a car body in its insignificant weight.

24 cl, 10 dwg