Patent ID: 7445084

Claim:
A soundproof thermal shield ( 3 ) for motor vehicles, comprising a support ( 4 ) made from aluminum, at least one noise-absorbing layer ( 6 ), and a thermal covering ( 7 ) made from aluminum, wherein the at least one noise-absorbing layer ( 6 ) is created from multiple plies ( 12 ) of knitted aluminum fabric wherein at least 5 superimposed plies ( 12 ) of knitted aluminum fabric are compressed to create a permeable mat ( 10 ) in such manner that the mat ( 10 ) has a thickness in the range from 0.5 to 3 mm and a microporous structure with a plurality of narrow, branched channels ( 11 ), wherein the support ( 4 ) has a free side with a plurality of noise pass-through apertures ( 5 ) the diameter of which is in the range from 0.1 to 1.9 mm, up to 24 noise pass-through apertures ( 5 ) per cm 2 being arranged thereon.