	US 12,392,271 B2
	Modularly constructed exhaust gas treatment arrangement
Oleksandr Velyaev, Stuttgart (DE); Shengxiao Lin, Esslingen (DE); and Peter Kast, Esslingen (DE)
Assigned to Purem GmbH, Neunkirchen (DE)
Filed by Purem GmbH, Neunkirchen (DE)
Filed on Apr. 19, 2024, as Appl. No. 18/640,983.
Claims priority of application No. 10 2023 110 142.0 (DE), filed on Apr. 21, 2023.
Prior Publication US 2024/0352883 A1, Oct. 24, 2024
Int. Cl. F01N 13/00 (2010.01); F01N 3/021 (2006.01); F01N 3/10 (2006.01); F01N 3/20 (2006.01); F01N 3/28 (2006.01)

CPC F01N 13/0097 (2014.06) [F01N 3/021 (2013.01); F01N 3/106 (2013.01); F01N 3/2066 (2013.01); F01N 3/2882 (2013.01); F01N 3/2892 (2013.01); F01N 2610/1453 (2013.01)]

16 Claims

1. A modularly constructed exhaust gas treatment arrangement comprising:

an entry interface for receiving exhaust gas into said exhaust gas treatment arrangement;

a first mixing section having an exit area;

a first exhaust gas treatment section having a first catalytic converter arrangement and a particle filter arrangement and defining an entry area and an exit area;

a second mixing section having an entry area and an exit area;

a second exhaust gas treatment section having a second catalytic converter arrangement and defining an entry area;

a first deflection housing connecting said exit area of said first mixing section to said entry area of said first exhaust gas treatment section;

a second deflection housing connecting said exit area of said first exhaust gas treatment section to said entry area of said second mixing section;

a third deflection housing connecting said exit area of said second mixing section to said entry area of said second exhaust gas treatment section;

a first module including said entry interface and said first mixing section;

a second module including said first deflection housing and said first catalytic converter arrangement of said first exhaust gas treatment section;

said second module being detachably connected to said first module;

a third module including said particle filter arrangement of said first exhaust gas treatment section;

said third module being detachably connected to said second module;

a fourth module including said second deflection housing;

said fourth module being detachably connected to said third module;

a fifth module including said second mixing section, said third deflection housing and said second exhaust gas treatment section; and,

said fifth module being detachably connected to said fourth module;

wherein said first mixing section is elongated in the direction of a first mixing section longitudinal axis parallel to an exhaust gas treatment arrangement longitudinal axis, said second mixing section is elongated in the direction of a second mixing section longitudinal axis parallel to said longitudinal axis of said exhaust gas treatment arrangement, said first exhaust gas treatment section is elongated in the direction of a first exhaust gas treatment section longitudinal axis parallel to the exhaust gas treatment arrangement longitudinal axis, the second exhaust gas treatment section is elongated in the direction of a second exhaust gas treatment section longitudinal axis parallel to said longitudinal axis of said exhaust gas treatment arrangement, and said first mixing section, said second mixing section, said first exhaust gas treatment section, and said second exhaust gas treatment section are arranged overlapping one another in the direction of said longitudinal axis of said exhaust gas treatment arrangement.