Mixer Assembly For Exhaust Aftertreatment System
AssigneeTenneco Automotive Operating Company Inc.
InventorsLawrence Dalimonte, Peter J. Mattei, Michael Golin
Life of this patent
Estimating the term…
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.
Claims48
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, the mixer assembly dividing an exhaust stream into at least two flow paths.
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 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 and the parallel plates and fixedly connected to one of the parallel plates, the mixer assembly dividing an exhaust stream into at least two flow paths.
Dependencies are inferred from the claim text.