Browse Publications Technical Papers 1999-01-3497

A Compact Temperature Control System for Lean Exhaust Gas to Improve Conversion Performance of NOx Aftertreatment 1999-01-3497

A compact exhaust gas temperature control unit is presented. The unit was fitted to a gasoline direct injection production car together with a modified exhaust system. It was shown that it was possible to keep the exhaust gas temperature within the lean operational NOx temperature window of typical NOx absorption catalysts for the whole European drive cycle. This should improve the lean NOx conversion of such a catalyst system significantly. It was shown that the standard vehicle cooling system should be able to cope with the additional heat input from the temperature control unit without major modifications.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 40% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.