US 11,834,980 B2
Exhaust-gas guiding housing
Christoph Buckermann, Einbeck (DE); and Marc-André Marek, Boebingen an der Rems (DE)
Assigned to Purem GmbH, Neunkirchen (DE)
Filed by Purem GmbH, Neunkirchen (DE)
Filed on Sep. 28, 2022, as Appl. No. 17/936,236.
Claims priority of application No. 10 2021 125 013.7 (DE), filed on Sep. 28, 2021.
Prior Publication US 2023/0103952 A1, Apr. 6, 2023
Int. Cl. F01N 3/28 (2006.01); B01D 53/94 (2006.01); F01N 3/02 (2006.01); F01N 3/20 (2006.01); F01N 3/021 (2006.01)
CPC F01N 3/2892 (2013.01) [B01D 53/94 (2013.01); F01N 3/021 (2013.01); F01N 3/2013 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An exhaust-gas guiding housing for an exhaust-gas system of an internal combustion engine, the exhaust-gas guiding housing defining a housing longitudinal axis (L) and comprising:
an air inlet housing part for accommodating an exhaust-gas flow therethrough in an exhaust-gas main flow direction (H);
said air inlet housing part including a housing wall surrounding said housing longitudinal axis (L);
said housing wall having at least one air inlet opening provided therein in at least one air inlet peripheral region thereof;
an inner wall provided within said air inlet housing part;
said inner wall and said housing wall conjointly defining an air inlet chamber communicating with said at least one air inlet opening; and,
wherein a plurality of air passage openings are provided in said inner wall arranged successively in a peripheral direction about said housing longitudinal axis (L); and,
wherein an opening size of said air passage openings increases in a peripheral direction from said at least one air inlet peripheral region.