This diagram of a 2010-technology Daimler Bluetec emissions system illustrates how a modern SCR system works. Starting with 2007 model trucks, a DPF was added to remove particulate matter.

The truck’s batteries have been moved to the back of the chassis to free up some room for the SCR components closer to the front of the cab. Of course in Europe, the cabover still reigns supreme. Also ...

At the 2014 WorkBoat show, Tenneco introduced a new large engine selective catalytic reduction (SCR) system for marine and large engine applications.

Abstract: SCR system design and control strategy based on automobile enameled wire process is studied in this paper. The control signal of non-feedback control is not affected by the actual change of ...

LUXEMBOURG – Delphi Automotive has developed a NOx control for diesel engines with a new selective catalytic reduction (SCR) system that improves the performance, packaging and long-term reliability ...

Mazda's MZR-CD 2.2L turbo diesel engine actually produces low volumes of NOx, which means that the SCR system needs to remove less NOx in post processing, resulting in a reduced amount of urea used.

Companies align to develop non-urea SCR system. by Today's Trucking August 1, 2014. LAKE FOREST, Ill — Tenneco and GE Transportation have signed a joint agreement to develop a proprietary selective ...

Tenneco’s new marine SCR system has demonstrated effective NO x reduction in bench and field testing. In laboratory validation, the system achieved average NO x reduction efficiency levels of ...