Single module integrated aftertreatment module

A system for treating an exhaust gas, comprises a diesel particulate filter (DPF) 204 with a first and a second filter 210, a decomposition chamber 220 with a reductant delivery system 230 downstream of the DPF, and a selective catalytic reduction (SCR) 240 catalyst downstream of the decomposition c...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	David M Sarcona, Kenneth R Federle, Randolph G Zoran, Scott Lubenow, A Carl McDonald Jr, Ryan M. Johnson, John G Buechler, Arvind V. Harinath
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENTTYPE, e.g. STEAM ENGINES MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION STEAM ENGINES TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A system for treating an exhaust gas, comprises a diesel particulate filter (DPF) 204 with a first and a second filter 210, a decomposition chamber 220 with a reductant delivery system 230 downstream of the DPF, and a selective catalytic reduction (SCR) 240 catalyst downstream of the decomposition chamber. A sensor 212 is placed between the first and second filter of the DPF. Another embodiment comprises a sensor assembly 248 between a first and second catalyst of the SCR. In a further embodiment, the portions of the housing containing the DPF and the SCR have a first diameter, and the portion containing the decomposition chamber has a second diameter, the second diameter is less than the first. In all embodiments the DPF and the SCR share the same centreline axis i.e. coaxial.