US 11,913,368 B2
Exhaust gas treatment arrangement
Wolfgang Datz, Tuebingen (DE); and Felix Neumann, Aichwald (DE)
Assigned to Purem GmbH, Neunkirchen (DE)
Filed by Purem GmbH, Neunkirchen (DE)
Filed on Mar. 22, 2023, as Appl. No. 18/187,800.
Claims priority of application No. 10 2022 106 603.7 (DE), filed on Mar. 22, 2022.
Prior Publication US 2023/0304431 A1, Sep. 28, 2023
Int. Cl. F01N 13/18 (2010.01); F01N 3/28 (2006.01)
CPC F01N 3/2875 (2013.01) [F01N 3/2864 (2013.01); F01N 13/1827 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An exhaust gas treatment arrangement for an exhaust gas system of an internal combustion engine, the exhaust gas treatment arrangement comprising:
a housing defining a longitudinal axis and being elongated in a direction along said longitudinal axis;
at least one exhaust gas treatment unit arranged in said housing and having a shell;
said housing and said shell conjointly defining an intermediate space therebetween;
at least one bearing/sealing unit disposed in said intermediate space;
said at least one bearing/sealing unit having at least two bearing/sealing rings disposed radially one behind the other so as to be nested inside one another, each of said bearing/sealing rings being configured as a formed sheet metal part;
each of said bearing/sealing rings being configured as an open ring interrupted in a circumferential interruption region; and,
the circumferential interruption region of at least one of said bearing/sealing rings being offset in a circumferential direction with respect to the circumferential interruption region of another one of said bearing/sealing rings.