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
- Turbine wheel
- Turbine housing
- Exhaust gas inlet
- Exhaust gas outlet
- Compressor wheel
- Compressor housing
- Bearing system
- Compressed air outlet
THE TRANSITION TO GLOBAL EMISSION REDUCTION There is a global effort to reduce emissions through the development and implementation of alternative fuels; technologies that deliver lower emissions and reduce environmental impact and through the adoption of more sustainable manufacturing and supply chain practices. This article dives into efforts that involve not just the manufacturing and develo
The engine control module (ECM) is a critical component in the fuel delivery system in diesel, natural gas and hydrogen vehicles. This article looks at the role of ECMs in the fuel delivery systems across various fuel technologies like diesel, natural gas and hydrogen. As we examine modern fuel systems and fuel delivery systems, we will see how ECMs work with fuel delivery systems to keep vehicles
The commercial transportation industry is undergoing a significant transformation, driven by the global push to reduce emissions. In parallel, our customers and fleet operators are trying to achieve more sustainable operations through improved fuel economy and efficient performance. As fuel technologies evolve, it is crucial to understand how Electronic Control Units (ECUs) will evolve to support
Battery Electric Vehicles (BEVs) and Fuel Cell Electric Vehicles (FCVs) are vital to the transportation industry's move toward more sustainable operations. Both are low emission vehicles that run on electric power. Battery Electric Vehicles operate using energy stored in batteries, while Fuel Cell Electric Vehicles are powered by a fuel cell that creates electricity using hydrogen as a fuel, with
The fuel system is a critical part of any engine, playing a pivotal role in powering vehicles efficiently and effectively. As fuel technologies evolve, a better understanding of the fuel system enables Original Equipment Manufacturers (OEMs) to meet their emission goals, optimize vehicle performance, ensure safety and comply with regulations. The fuel system is part of the powertrain and
Cummins Turbo Technologies’ big step towards reducing emissions CEC (Cummins Engine Components) launched its first e-compressor for fuel cell engine in Wuxi, China on Feb 1, 2024. This is a new milestone for Cummins Turbo Technologies and a big step forward in Cummins Inc.'s Destination Zero strategy for reducing carbon and other emissions. Destination Zero is Cummins’ strategy to go further, f
What are virtual sensors and how are they different from traditional sensors? Virtual sensors are an emerging software-based technology that can make a big difference in how we monitor and manage engines and vehicle performance. Unlike traditional sensors, which are physical pieces of hardware that need to be installed in specific places within the engine to work, virtual sensors work by
Circular life cycle planning is gaining traction as an alternative to traditional manufacturing practices. By comparing the principles of circular and linear life cycles, we can understand their implications for businesses and the environment. This article discusses the importance of circular life cycle planning, its advantages and its adoption by Cummins Inc. Let's explore the benefits and practi
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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.
