While the business is
broadening its portfolio of products to include alternative fuels, downsized
engines and electrification, diesel remains a core focus. The investment made
in R&D for diesel is reaping rewards with Cummins teams consistently
working to achieve cleaner air and meet increasingly stringent emissions
The company showcased its
revolutionary concept of an integrated turbocharger and after-treatment system.
Engineering expertise across Cummins Turbo Technologies and Cummins Emission
Solutions has been combined to deliver new air and thermal management
architectures in this single system. Representing the future vision for cleaner
engine technology, the revolutionary concept integrated system consists of a
Holset Fixed Geometry turbocharger with an integrated rotary turbine control
(RTC) and a Close Coupled Unit with a Selective Catalytic Reduction catalyst.
“It is an exciting time to be
in the power industry. Customers are demanding power options that deliver
greater efficiency, reliability and flexibility, with reduced emissions,” said
Tracy Embree, President of Cummins Components. “As engine manufacturers race to
meet the demand for new power solutions, we are seeing new concept systems and
innovations shaking up the industry and we’re proud to be at the forefront of
these developments,” added Embree.
Embree further stated, “At
Cummins we are addressing this shift in the market by expanding our portfolio
of products to reflect the needs of the future. In order to meet challenging
new environmental regulations, we have adapted engine technology, resulting in
diesel engines that are cleaner and more efficient. At IAA we will reveal the
new technology that we believe will future-proof diesel engines for the next
Diesel fuel is the most energy
dense liquid fuel available and advances in engines, emissions control
technology and cleaner diesel fuels have led to some remarkable environmental
The ongoing research and
development on the integrated system looks at innovative ways for achieving
optimised heat management and increased fuel economy. In turn, it works to
deliver an increase in overall engine performance while providing Cummins
customers a saving in costs by an increase in efficiency.
The integrated RTC enables
exhaust gases to bypass the turbine stage and enter the Close Coupled Unit
after the gas has been injected with urea by the new Cummins UL4 injector. This
immediate conversion enables exhaust gases to be 70°C hotter than when it
reaches the SCR catalyst in traditional after-treatment systems.
When combined with the Single
Module, which alone reduced emissions by 97 percent over the previous
generation of products, the integrated system has the potential to assist in
meeting future lower NOx and GHG limits, as well as providing additional
benefits for cold start and urban driving emissions reduction. The conceptual
system is one method which demonstrates Cummins’ continuous investment in
research and development in anticipation of future legislative limits.
To commemorate marking the
20th anniversary of Holset VGT, Cummins Turbo Technologies also previewed its
most premium Variable Geometry Turbocharger to date – the seventh generation
Predicted to save the customer
fuel and achieve greater turbo efficiency, when compared to its predecessor,
the advanced seventh generation Holset VGT demonstrates improvements to the
turbine stage efficiency through advancements made to its patented nozzle and
shroud design, making it the most efficient Holset VGT yet.
The business also highlighted
the ongoing investment in R&D for 2021 -2024+ legislation, which focuses on
developments around pulse optimisation, air-handling valves, oil seal
improvements and electrified turbochargers.
In addition to the integrated
system and preview of the seventh generation Holset VGT, Cummins is unveiling a
number of other components at the IAA Commercial Vehicles show which showcase
the expertise and research being undertaken by the Cummins engineering teams to
support legislation changes over the next 10 years.
Source: IAA COMMERCIAL VEHICLES 2018