CPC F01N 3/2892 (2013.01) [B01D 53/9431 (2013.01); B01F 25/3131 (2022.01); F01N 3/2066 (2013.01); F01N 2240/20 (2013.01); F01N 2610/02 (2013.01); F01N 2610/1453 (2013.01)] | 13 Claims |
1. An exhaust aftertreatment assembly comprising:
a doser; and
a cone having a first center axis and being defined by a first length along the first center axis, the cone comprising:
a first sidewall having a plurality of inlets,
a plurality of flaps, each of the flaps extending radially outward from the first sidewall over one of the inlets,
a first cone opening at a first end of the first sidewall, and
a second cone opening at a second end of the first sidewall;
a tube having a second center axis that is coincident with the first center axis, the tube comprising:
a second sidewall having a second length along the second center axis, the second length greater than the first length, the second sidewall being cylindrical and unperforated,
a first tube opening at a first end of the second sidewall, and
a second tube opening at a second end of the second sidewall; and
a flange in confronting relation with and orthogonal to the second sidewall, the flange extending outwardly from and around the second sidewall at a location adjacent to the first tube opening and the second cone opening;
wherein:
the first cone opening is adjacent to a portion of the doser;
the first cone opening has a first diameter;
the second cone opening is adjacent to the first tube opening and has a second diameter, the second diameter being larger than the first diameter; and
the first sidewall has a conical shape.
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