US 11,739,676 B2
Mixer arrangement and a method of mixing for after-treatment of exhaust gas
Sauli Halonen, Oulunsalo (FI); Tuomas Tyni, Oulunsalo (FI); Jukka Kurikka, Oulunsalo (FI); and Juha Karhu, Oulunsalo (FI)
Assigned to Proventia Oy, Oulunsalo (FI)
Appl. No. 17/608,017
Filed by Proventia Oy, Oulunsalo (FI)
PCT Filed May 20, 2020, PCT No. PCT/FI2020/050338
§ 371(c)(1), (2) Date Nov. 1, 2021,
PCT Pub. No. WO2020/240082, PCT Pub. Date Dec. 3, 2020.
Claims priority of application No. 20195431 (FI), filed on May 24, 2019.
Prior Publication US 2022/0298948 A1, Sep. 22, 2022
Int. Cl. F01N 3/28 (2006.01); F01N 13/00 (2010.01); B01F 25/313 (2022.01); B01F 25/10 (2022.01); B01F 23/213 (2022.01); B01D 53/94 (2006.01); F01N 3/021 (2006.01); F01N 3/20 (2006.01); B01F 25/00 (2022.01)
CPC F01N 3/2892 (2013.01) [B01D 53/9418 (2013.01); B01D 53/9431 (2013.01); B01D 53/9477 (2013.01); B01F 23/2132 (2022.01); B01F 25/102 (2022.01); B01F 25/103 (2022.01); B01F 25/3131 (2022.01); F01N 3/021 (2013.01); F01N 3/2066 (2013.01); F01N 13/009 (2014.06); B01F 2025/913 (2022.01); F01N 2610/02 (2013.01); F01N 2610/1453 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A mixer arrangement for aftertreatment of exhaust gas, comprising: a housing configured to form a cavity comprising a center flow channel pipe inside the housing in which the exhaust gas flows; and at least one side inlet arrangement configured to allow the exhaust gas to enter the center flow channel pipe from a side thereof and configured to cause an advancing center flow in the center flow channel pipe and a rotating flow around or on edges of the advancing center flow in the center flow channel pipe; wherein the at least one side inlet arrangement comprises at least a pair of side inlet pipes on the side of the center flow channel pipe; and the mixer arrangement further comprising one or more holes defined by the center flow channel pipe, configured to feed exhaust gas to the advancing center flow in the center flow channel pipe.