Cummins is the only manufacturer focused solely on medium- to heavy-duty diesel engine turbo technologies. For more than 60 years, we have delivered innovative, reliable turbocharger solutions for our customers. Our vision for turbocharger solutions, thanks to our rich company heritage derived from our Holset® brand, sets us apart as a technology leader.
Commercial diesel engines require advanced technologies that deliver efficiency and meet strict emissions requirements. Our fixed, wastegate, variable, two-stage, turbo-compounding and waste heat expander technologies were specifically developed to deliver higher efficiency and lower cost.
Today, Cummins Turbo Technologies engineers are actively developing state of the art solutions for the next generation, including assisted turbocharging, new bearing systems and enhanced compressor stage performance.
Fixed Geometry Turbochargers
The Holset® brand has its roots in fixed geometry technology, turbochargers which funnel all the exhaust gas to the turbine to boost engine power. With over 60 years experience of meeting customer power requirements, Cummins Turbo Technologies’ expertise is tried and tested, and produces some of the world’s most optimized, efficient and reliable turbochargers.
Variable Geometry Turbochargers
The Holset VGT™ from Cummins Turbo Technologies pioneered Variable Geometry (VG) technology for the commercial vehicle market in 1998. Featuring a patented sliding nozzle ring, the Holset VGT offers a wide flow range that allows for higher boost pressures at low engine speeds. VG technology provides the most fuel-efficient means of driving short-route Exhaust Gas Recirculation (EGR), which is used to reduce NOx levels.
Wastegate Turbochargers
Wastegate technology helps to prevent turbocharger over-speeding, as well as engine overboost. The well-engineered Holset wastegate turbochargers employ the same industry-leading design techniques used throughout Cummins. Wastegate turbochargers improve upon fixed geometry units with an overall 3% increase in efficiency, and they can be optimized for various aftertreatment systems.
Sustainable innovation for the future
Meet the new 7th generation series 400 variable geometry turbocharger
Launched in 2021, the 400 series VGT offers 5% higher turbocharger efficiency compared to its predecessor. The leapfrog innovation is the combined effect of a multi-clearance shroud design and new wheel options to provide higher turbine efficiency. The latest HE 400 VGT will help engine manufacturers meet upcoming emission standards and offer best in class fuel economy.
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Fuel Agnostic Engines: Their role in decarbonization
Every day in the US, five million metric tons of CO2 are emitted by the transportation sector. Medium and heavy-duty trucks collectively had the largest increase in GHG emissions. One technology aiming to decarbonize the earth is fuel agnostic engine platforms. Learn more about how fuel-agnostic engine platforms can reduce or eliminate carbon emissions.
Turbocharger features
Current features
- Turbine wheel
- Turbine housing
- Exhaust gas inlet
- Exhaust gas outlet
- Compressor wheel
- Compressor housing
- Bearing system
- Compressed air outlet
Cummins Inc. is proud to announce the launch of the 2024 Shoes for Soldiers program. This initiative continues a long-standing commitment, formerly under Meritor, Inc., to support military veterans through the Wyakin Foundation, an organization dedicated to providing professional development and resources to wounded veterans. Through December 31st, 2024, Cummins' Drivetrain and Braking Systems
Enhancing product capabilities through continuous innovation and improvement is the corner stone of Cummins Inc.'s effort to offer customers solutions that lower emissions without compromising engine performance. As part of the Destination Zero strategy, Cummins strives to lower carbon and other emissions for the trucking industry with its wide range of products and solutions. As the industry-lead
On Nov. 1, Cummins Inc. (NYSE: CMI) launched Project Unity, a collaborative effort with Holtex and the University of Manchester to develop an advanced digital tool aimed at improving the design and durability of components used in hydrogen-fuelled powertrains. Project Unity employs machine learning-driven digital tools to accelerate speed to market by predicting long-term failure modes in criti
Trailers play a crucial role in transporting various goods and necessities, making it essential for them to remain on the road functioning properly. Since these fleets need to remain on the road for extended periods, it's important to have various systems and innovations in place to ensure that drivers and fleet managers can have peace of mind. Fleet managers and drivers face numerous challenges o
Cummins Drivetrain and Braking Systems (CDBS), a part of Cummins Inc.’s Components segment, is ramping up production capacity for air disc brakes (ADBs) and rear axles with strategic investments totaling over $190 million. These investments underscore Cummins’ commitment to meeting the increasing demand for advanced braking and axle solutions in the commercial vehicle sector. The industry is witne
At Cummins Inc., we’re constantly looking for ways to advance sustainable transportation solutions. As the industry shifts to lower-emission fuels to reduce pollution, natural gas engines are one critical pathway to cleaner mobility. Cummins is therefore working to innovate component-level technologies supporting natural gas engines. Understanding how natural gas engines work and the components
As fleets work towards reducing emissions, understanding the differences in aftertreatment systems for various fuel types is crucial. The adoption and growth of hydrogen internal combustion engines (ICE) is a significant step as hydrogen ICE provides a low-emission, low-carbon option for a more sustainable transportation sector. The mechanisms that clean exhaust gases in these engines are fundamen
Emission regulations have become crucial in reducing the environmental impact of heavy-duty vehicles. The implementation of U.S. Environment Protection Agency’s (EPA) 2027 emission standards in North America is expected to be a significant milestone in this ongoing endeavor, drastically lowering nitrogen oxide (NOx) emission limits by over 80%. The standards also dictate the extension of the emiss
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Turbochargers
Cummins Turbo Technologies' Holset® Turbochargers excel in technical performance, providing fuel economy for light, medium, and heavy-duty applications.
Power Turbines
Cummins Turbo Technologies' Holset® power turbines improve fuel efficiency on heavy-duty engines in a wide variety of applications.
Two-Stage Systems
Serial and modulated two-stage systems enable higher engine horsepower density for engine downsizing and increased power levels.
