VALVE ARRANGEMENT FOR SPLIT-FLOW CLOSE-COUPLED CATALYST
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United States of America Patent
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Issued Date -
Apr 4, 2024
app pub date -
Dec 5, 2023
filing date -
May 9, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
An aftertreatment system includes: a first exhaust gas path comprising a heater; a second exhaust gas path comprising a first decomposition chamber configured to receive reductant and a first selective catalytic reduction catalyst downstream of the first decomposition chamber; a combined exhaust gas path downstream of the first exhaust gas path and the second exhaust gas path, the combined exhaust gas path configured to receive exhaust gas from both the first exhaust gas path and the second exhaust gas path; a selector valve configured to divert the exhaust gas between the first exhaust gas path and the second exhaust gas path based on a temperature of the exhaust gas; and a controller programmed to control the selector valve.
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