US 11,852,060 B2
Sheathing arrangement and process for manufacturing a sheathing arrangement for an exhaust system of an internal combustion engine
Peter Gorke, Stuttgart (DE); and Frank Hempel, Bexbach (DE)
Assigned to PUREM GMBH, Neunkirchen (DE)
Filed by Purem GmbH, Neunkirchen (DE)
Filed on Mar. 31, 2021, as Appl. No. 17/219,086.
Claims priority of application No. 10 2020 109 186.9 (DE), filed on Apr. 2, 2020.
Prior Publication US 2021/0309166 A1, Oct. 7, 2021
Int. Cl. F01N 13/10 (2010.01); F01N 13/14 (2010.01); F01N 3/28 (2006.01); B60R 13/08 (2006.01)
CPC F01N 13/14 (2013.01) [B60R 2013/0807 (2013.01); F01N 3/2853 (2013.01); F01N 13/102 (2013.01); F01N 13/141 (2013.01); F01N 2510/02 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A sheathing arrangement for an exhaust system of an internal combustion engine, the sheathing arrangement comprising:
at least one sheathing element comprising a sheathing element shell having a shell inner side configured to be positioned facing toward a component of the exhaust system, which component is to be sheathed;
insulation material overlapping the shell inner side in at least some areas; and
at least one fastening element passing through the sheathing element shell and the insulation material and fixing the insulation material to the sheathing element shell, wherein:
at least one fastening element of the at least one fastening element has a U-shaped configuration with two U-legs and a connection web connecting the two U-legs;
the two U-legs traverse the sheathing element shell and the insulation material;
each of the U-legs has a section protruding on an insulation inner side of the insulation material, which insulation inner side is to be positioned facing toward a component to be sheathed, with each section bent as a bent section such that at least one of the bent sections adjoins the insulation inner side of the insulation material;
a connection web connecting the two U-legs adjoins a shell outer side of the sheathing element shell, which shell outer side is to be positioned facing away from the component to be sheathed, wherein:
the bent section of one of the U-leg adjoins the insulation inner side of the insulation material and the bent section of the other one of the U-legs overlaps the bent section of the one of the U-legs on a side thereof facing away from the insulation material, so that only the bent section of the one of the U-legs adjoins the insulation material; or
the bent sections of the U-legs are positioned next to one another and overlapping one another, so that the bent section of each one of the U-legs adjoins the insulation material.