Acoustic glass for vehicle windows

Details Acoustic glass for vehicle windows Acoustic glass for vehicle windows

B - Operations, Transporting

60

J

154/110, 181/14,

B60J 1/00 (2006.01) B32B 17/10 (2006.01) E06B 3/67 (2006.01)

Patent

CA 2011875

Un vitrage acoustigue destiné aux véhicules de transport terrestre est proposé. Son indice d'affaiblissement acoustique diffère au plus de 5dB d'un indice croissant de 3dB par octave de 800 à 2000 Hz et de 1 dB par octave au-dessus. Comme exemples on présente des vitrages doubles ou des vitrages feuilletés dont l'intercalaire possède un fort amortissement. L'efficacité concerne les bruits aérodynamiques.

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