A hole is defined through an outlet passage sidewall at a radial location that is proximate to the sidewall of the outlet conduit. The hole is configured to allow a sensor to be inserted therethrough into a flow path defined by the outlet passage. The outlet passage is configured to receive...
It includes a close-coupled diesel oxidation catalyst, a NOx adsorber catalyst and a catalyzed particulate filter. Hydrogen, generated in-situ in the device, plays an important role in the adsorber regeneration. H2 is detected by a heated oxygen sensor downstream of the adsorber (not shown in ...
Another aspect of the disclosure includes the exhaust subsystem being arranged in an underhood location. Another aspect of the disclosure includes the first exhaust gas sensor being a NOx sensor. Another aspect of the disclosure includes the first exhaust gas sensor being arranged to monitor the exha...
2. A vehicle engine system as in claim 1, wherein said aftertreatment device includes a housing having an inlet and an outlet, and wherein said bypass piping (19) introduces exhaust flow into the exhaust stream within 5 cm of the aftertreatment device housing inlet. 3. A vehicle engine ...