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...
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| creator | ULBRICH, DAGMAR SOLTAU, DIRK GROSS, THOMAS HANSEN, MICHAEL |
| description | 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. |
| format | Patent |
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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.</description><language>eng ; fre</language><subject>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</subject><creationdate>2008</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20081113&DB=EPODOC&CC=CA&NR=2670401A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20081113&DB=EPODOC&CC=CA&NR=2670401A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ULBRICH, DAGMAR</creatorcontrib><creatorcontrib>SOLTAU, DIRK</creatorcontrib><creatorcontrib>GROSS, THOMAS</creatorcontrib><creatorcontrib>HANSEN, MICHAEL</creatorcontrib><title>LIGHTWEIGHT, SOUND ABSORBING LINING FOR A BODY COMPONENT OF A MOTOR VEHICLE AND METHOD FOR PRODUCING THE SAME</title><description>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. 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| language | eng ; fre |
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| subjects | 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 |
| title | LIGHTWEIGHT, SOUND ABSORBING LINING FOR A BODY COMPONENT OF A MOTOR VEHICLE AND METHOD FOR PRODUCING THE SAME |
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