Mixer assembly for exhaust aftertreatment system
First Claim
1. An exhaust aftertreatment system comprising:
- an injector configured to inject a fluid into an exhaust passageway that receives exhaust gas from a combustion engine;
an aftertreatment device disposed in the exhaust passageway downstream of the injector; and
a mixer assembly disposed in the exhaust passageway upstream of the aftertreatment device and including a first stage having a plurality of parallel plates and a second stage connected to the first stage and disposed downstream of the first stage, the second stage including an auger blade extending from one of the plurality of parallel plates, the mixer assembly dividing an exhaust stream into at least two flow paths.
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Accused Products
Abstract
An exhaust aftertreatment system may include an injector, an aftertreatment device and a mixer assembly. The injector may be configured to inject a fluid into an exhaust passageway that receives exhaust gas from a combustion engine. The aftertreatment device may be disposed in the exhaust passageway downstream of the injector. The mixer assembly may be disposed in the exhaust passageway upstream of the aftertreatment device and may include a first stage having a plurality of parallel plates and a second stage connected to the first stage and disposed downstream of the first stage. The second stage may include an auger blade. The mixer assembly may divide an exhaust stream into at least two flow paths.
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Citations
48 Claims
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1. An exhaust aftertreatment system comprising:
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an injector configured to inject a fluid into an exhaust passageway that receives exhaust gas from a combustion engine; an aftertreatment device disposed in the exhaust passageway downstream of the injector; and a mixer assembly disposed in the exhaust passageway upstream of the aftertreatment device and including a first stage having a plurality of parallel plates and a second stage connected to the first stage and disposed downstream of the first stage, the second stage including an auger blade extending from one of the plurality of parallel plates, the mixer assembly dividing an exhaust stream into at least two flow paths. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. An exhaust aftertreatment system comprising:
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an injector configured to inject a fluid into an exhaust passageway that receives exhaust gas from a combustion engine; an aftertreatment device disposed in the exhaust passageway downstream of the injector; and a mixer assembly disposed in the exhaust passageway upstream of the aftertreatment device and downstream of the injector, the mixer assembly including an annular housing, a plurality of parallel plates disposed in the annular housing and an auger blade disposed downstream of the annular housing, the auger blade fixedly connected to and extending from one of the plurality of parallel plates, the mixer assembly dividing an exhaust stream into at least two flow paths. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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Specification