LIGHTWEIGHT, SOUND ABSORBING LINING FOR A BODY COMPONENT OF A MOTOR VEHICLE AND METHOD FOR PRODUCING THE SAME

The invention relates to a lightweight, sound-insulating lining (1) for a body part of a motor vehicle, especially in the form of a lightweight front wall lining, comprising a sound absorbing layer (1.1), a substantially air- tight sound damping layer (1.2) that is directly connected to the sound ab...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	ULBRICH, DAGMAR, SOLTAU, DIRK, GROSS, THOMAS, HANSEN, MICHAEL
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PERFORMING OPERATIONS PHYSICS SOUND-PRODUCING DEVICES TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention relates to a lightweight, sound-insulating lining (1) for a body part of a motor vehicle, especially in the form of a lightweight front wall lining, comprising a sound absorbing layer (1.1), a substantially air- tight sound damping layer (1.2) that is directly connected to the sound abso rbing layer, and a foam layer (1.3) which adjoins the sound damping layer (1 .2). The sound absorbing layer (1.1) is made of a porous absorber, preferabl y a fiber fleece or foamed plastic that has an air permeability ranging from 150 to 2,000 liters/m2s at a test pressure of 100 Pa. The sound damping lay er (1.2) is made of an at least 0.5 mm thick, integral film layer of the foa m layer (1.3) and is integrally joined to the porous absorber by foam-backin g the porous absorber, essentially without foam penetrating therethrough. A method for producing such a lining is also disclosed.