Cummins Emission Solutions is introducing the first of a next generation of compact, ultra-high efficiency aftertreatment systems, the EcoFit Single Module. It will be shown at next week’s Mid-America Trucking Show in Louisville.

The EcoFit Single Module is up to 60% smaller and 40% lighter than current equipment it supersedes, yet improves emissions reduction performance, the company says. Smaller size enables better heat management and retention for improved fuel economy, while a simple single-pass exhaust flow design delivers low back pressure.

"We are very proud to announce this groundbreaking platform and believe it is a game changer in the commercial vehicle aftertreatment market," said John Carroll, general manager, Global On-Highway Business. "This product uses innovations in catalyst and urea dosing technologies unique to Cummins Emission Solutions to deliver an ideal solution in the market."

Simple packaging offers truck and engine builders system integration benefits and promises a robust and reliable aftertreatment system for medium- and heavy-duty truck operators, he said. The product will meet greenhouse-gas and fuel efficiency standards for EPA 2017.

"We've achieved incredible results with this product through an entirely new engineering approach to aftertreatment systems," Carroll continued. "Historically, aftertreatment systems have been designed to meet emissions requirements; however, we've approached the development of this system to meet our customer needs first, while also meeting emissions standards and maintaining product integrity."

Advancements in catalyst technologies have allowed the diesel particulate filter to have a bigger ash capacity, for increased time between maintenance events and minimal operator intervention. An EcoFit UL2 liquid-only urea dosing system improves NOx reduction capabilities.  

OEM customers will benefit from simpler chassis integration, as the UL2 system does not require engine coolant lines to and from the diesel exhaust fluid (DEF) injector, Carroll said. Operators will see more efficient atomization of urea and minimized urea deposits, thus requiring fewer regeneration events while experiencing the optimal use of DEF throughout the system.