Single sensor monitoring system for multiple after-treatment systems on engines

An exhaust aftertreatment system 100 comprises a first and second passageways 112a, 112b to receive first and second (parallel) portions of exhaust gas from an engine 10. First and second selective catalytic reduction (SCR) systems 150a, 150b are fluidly coupled to the first and second passageways r...

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Bibliographische Detailangaben
1. Verfasser:	Karthik Muruganantham
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LIGHTING MACHINES OR ENGINES IN GENERAL MEASURING MECHANICAL ENGINEERING PHYSICS STEAM ENGINES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TESTING WEAPONS
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Beschreibung
Zusammenfassung:	An exhaust aftertreatment system 100 comprises a first and second passageways 112a, 112b to receive first and second (parallel) portions of exhaust gas from an engine 10. First and second selective catalytic reduction (SCR) systems 150a, 150b are fluidly coupled to the first and second passageways respectively to receive and treat the respective first and second portions of exhaust gas. A plurality of sensors 153, 155, 157, 159 are disposed on the first passageway and/or the first SCR system to sense operational parameters of the first portion of exhaust gas. A controller 170, in electronic communication with the sensors, determines the operational parameters of the first portion of exhaust gas based on signals from the sensors, and determines operational parameters of the second portion of the exhaust gas based upon the first operational parameters. The first and second passageways me be (about) the same length, or the y may be different lengths. The sensors may include at least one of a temperature, NOx, ammonia and oxygen sensor.