Patent ID: 8201660

Claim:
A silencer for a motor vehicle exhaust line, the silencer ( 1 ) comprising: an outer shell ( 2 ) delimiting an internal volume ( 4 ); at least one internal partition ( 10 ) dividing the internal volume ( 4 ) into two chambers ( 14 , 16 ); an orifice ( 36 ) formed in the internal partition ( 10 ); and a valve ( 38 ) for closing the orifice ( 36 ), the valve ( 38 ) comprising a closing component ( 44 ) connected to the internal partition ( 10 ), the closing component configured to assume a closure position in which the closing component ( 44 ) closes the orifice ( 36 ), and the closing component being capable of rising by bending from the closure position, the closing component ( 44 ) comprising a closure plate ( 54 ) for closing the orifice ( 36 ) in the closure position, and one or more connection plates ( 56 ) rigidly affixed to the internal partition ( 10 ) and to the closure plate ( 54 ), the closure plate ( 54 ) and the one or more connection plates ( 56 ) being at least one of having differing thicknesses and being made of materials having differing mechanical characteristics, the one or more connection plates ( 56 ) being more flexible than the closure plate ( 54 ) such that the one or more connection plates ( 56 ) bend and the closure plate ( 54 ) does not bend when the closing component ( 44 ) rises from the closure position under the effect of a difference of pressure between two opposite sides of the internal partition ( 10 ).