Faurecia Automotive Industrie

Jean-François Rondeau

Arnaud Duval

Valérie Marcel

Lars Bischoff

Philippe Marcq

Guillaume Deshayes

Didier Liaud

Philippe-Jean Marcq

Patrice Charbonnier

Patrice c/o Faurecia Automotive Ind Charbonnier

Valérie c/o Faurecia Automotive Industrie Marcel

Component for a motor vehicle and associated motor vehicle. The component according to the invention has a first support layer () and a second support layer (), partially applied on the first layer (). The second layer () includes at least one first region (A,B) applied on the first layer () and at least one second region (A,B) positioned across from and separated from the first layer (), the second region (A,B) together with the first layer () delimiting an intermediated space (A,B). The second region (A,B) has a density lower than the density of the first region (A,B). The second layer () comprises at least one third region (A) applied on the first layer (), the third region (A) having a density lower than the density of the first region (A,B).

Component for a motor vehicle and associated motor vehicle

The assembly comprises a base spring layer made with a base of a resilient porous material, and the base spring layer being intended to be placed opposite a surface of the automobile. It comprises a stiffening layer arranged above the base spring layer and having a surface density greater than 250 g/mand at least one resilient porous upper layer arranged on the stiffening layer. The stiffening layer is made with a base of a dense porous material having a resistance to air flow strictly greater than 2000 N&#xb7;m&#xb7;s. The assembly advantageously has an upper resistive layer.

Soundproofing assembly for an automobile, and associated wall element

A soundproofing assembly includes stacked layers in the form of a first set of layers () having good resistance to the passage of air, and a second set of layers () with mass-spring function including a layer () having a heavy viscoelastic mass and a spring type layer (); the first set of layers includes a layer () of a foam with open cells of high porosity, high tortuosity and good resistance to the passage of air, the layer () having, owing to its high tortuosity, excellent sonic absorption properties at medium and high frequencies. The invention is useful for soundproofing motor car passenger compartments.

Soundproofing assembly, use for soundproofing enclosed spaces, and method for making same

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Carignan, France

Jean-François Rondeau