New EcoFit Liquid-Only Urea Dosing System Unveiled For The Heavy-Duty Trucking Industry In North America

LOUISVILLE, Ky. (March 20, 2013) – The proprietary design of the spray nozzle on the EcoFit™ UL2 Liquid-Only Urea Dosing System offers improved atomization of urea, and is just one feature that sets this Cummins Emission Solutions system apart from all other liquid-only solutions in the market today.

This system’s unique freeze-robust components allow for optimal pump-priming and the prevention of crystallization throughout the unit. Following the acquisition of Hilite International’s Selective Catalytic Reduction (SCR) division in July 2012, Cummins Emission Solutions, a subsidiary of Cummins Inc., added the UL2 system to its engineered-components portfolio, and the system will be on display at the upcoming Mid-America Trucking Show (MATS). 

“The acquisition gave Cummins Emission Solutions the opportunity to quickly expand its portfolio of engineered components with a proven urea dosing technology,” said Zach Gillen, General Manager – Engineered Components at Cummins Emission Solutions.  “And we believe the combination of Cummins system integration expertise, coupled with Hilite’s SCR component expertise, will allow us to better serve customers throughout the world.”

The EcoFit UL2 Liquid-Only Urea Dosing System has been specifically designed and tested for leading emissions markets. With proven reliability through serial production and multiple summer and winter tests, the spray nozzle allows customization in flow rates and spray cone angles. The intelligent doser, with temperature and pressure sensors at the point of injection, allows for flexible vehicle integration by accommodating varying dosing line lengths without affecting controls.

The challenges to urea dosing are surpassed by the system’s unique dosing nozzle strategy. The dosing nozzle provides improved oxides of nitrogen (NOx) conversion efficiency rates through urea droplet sizes unrivaled by those of competitive airless systems. With droplet sizes comparable to those of air-assisted systems, the likelihood of urea droplets in the Decomposition Reactor is significantly reduced. As the only liquid-only doser on the market offering freeze robustness, urea can remain in the system at all times, even during freeze events. Keeping urea in the system prevents crystallization and clogging, eliminates the need for power at key-off for purging, allows quicker dosing at key-on and prevents damage to the system during intentional or unintentional power interruption of the vehicle.

“We are excited to have this proven technology in our product offering,” said Gillen. “Our goal is to help our customers win in the market, and the EcoFit UL2 Liquid-Only Urea Dosing System provides differentiated performance that customers can depend on.”

About Cummins Emission Solutions
Cummins Emission Solutions, a subsidiary of Cummins Inc. and a business in the Components segment, is a global leader in designing, manufacturing and integrating exhaust aftertreatment technology and solutions for the commercial on- and off-highway light-duty, medium-duty, heavy-duty and high-horsepower engine markets.  Dedicated to innovation and dependability in meeting global emissions regulations, Cummins Emission Solutions develops and produces various emissions solutions. These solutions include custom-engineered systems and integrated controls, oxidation catalysts, particulate filters, NOx reduction systems such as Selective Catalytic Reduction and NOx adsorbers, and engineered components. With key operations in the United States, China, India, the United Kingdom, Germany, Brazil and South Africa, Cummins Emission Solutions serves both OEM and engine first-fit and retrofit customers.

About Cummins
Cummins Inc., a global power leader, is a corporation of complementary business units that design, manufacture, distribute and service engines and related technologies, including fuel systems, controls, air handling, filtration, emission solutions and electrical power generation systems. Headquartered in Columbus, Indiana (USA), Cummins employs approximately 46,000 people worldwide and serves customers in approximately 190 countries and territories through a network of more than 600 company-owned and independent distributor locations and approximately 6,500 dealer locations. Cummins earned $1.65 billion on sales of $17.3 billion in 2012. Press releases can be found on the Web at or Follow Cummins on Twitter at and on YouTube at