Cummins introduces new urea dosing system

Niels Tholen - 5 April 2013

Cummins Emission Solutions showcased a new urea dosing system at the Mid-America Trucking Show in Louisville, KY last week (March 21 to 23), saying it can improve performance of the Selective Catalytic Reduction (SCR) system in cold weather.

The  EcoFit UL2 system comes with a proprietary spray nozzle, different from other liquid-only systems currently available, the firm claims, and features freeze-robust components which allow for pump-primping, thus preventing crystallisation throughout the unit.

EcoFit UL2's dosing strategy provides improved NOx conversion efficiency rates through smaller urea droplet sizes. This means the decomposition chamber can operate more efficiently. Due to its freeze robustness, urea can remain in the system at all times, even during freeze events. Benefits listed by Cummins include: elimination of crystallization and clogging, elimination of the need for power at key-off for purging, quicker dosing at key-on and prevention of damage resulting from power interruption of the vehicle.

The new system was developed through an acquisition of Hilite International's SCR division in July 2012.

Zach Gillen, General manager for engineered components at Cummins Emission Solutions, said: "The acquisition gave Cummins Emission Solutions the opportunity to quickly expand its portfolio of engineered components with a proven urea dosing technology."

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