Retaining and insulation element for pollution control device of motor vehicle, has units sealing element to exhaust gas between edges of ply, which comprises central section with transversal width smaller than that of end sections of ply

摘要

The element (28) has a retaining ply (32) elongated along longitudinal direction for exerting pressure higher to a predetermined limit on a pollution control unit. The ply comprises two end sections (38) with respective edges (39) to be placed circumferentially against one another when the element is wrapped around the pollution control unit. The end sections comprise sealing units (44) for sealing the element to exhaust gas between the edges. The ply comprises a central section (36) with transversal width (L1) smaller than transversal width (L2) of each end section. Independent claims are also included for the following: (1) a pollution control device comprising an exhaust gas pollution control unit arranged at interior of an envelope (2) a method for manufacturing a retaining and insulation element.