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COUNTER-SWIRL MIXER

  • US 20180306083A1
  • Filed: 04/25/2017
  • Published: 10/25/2018
  • Est. Priority Date: 04/25/2017
  • Status: Active Grant
First Claim
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1. An aftertreatment system comprising:

  • an exhaust gas passageway receiving exhaust gas from an engine; and

    a mixer assembly disposed within the exhaust gas passageway and including an upstream baffle, a downstream baffle, and a tube extending between and connected to the upstream and downstream baffles, the tube including an inner surface defining a first flow path through the mixer assembly, the upstream and downstream baffles cooperating to define a second flow path through the mixer assembly, the second flow path extending in a rotational direction around an outer surface of the tube,wherein the second flow path includes an inlet opening and an outlet opening, the inlet opening is defined by the upstream baffle and disposed radially outward relative to the tube, the outlet opening is defined by the downstream baffle and disposed radially outward relative to the tube and angularly offset relative to the inlet opening.

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