Cummins 6.7L Direct Injection, Lean Burn Hydrogen Engine for Medium- and Heavy-Duty Commercial Vehicles

Authors

L. Liu, G. Suo, Cummins Ltd, Beijing, China; Y. Zhang, Cummins Inc, Columbus, USA; H. He, X. Yang, Cummins Ltd, Hubei, China; P. Leggott, Cummins Ltd, Darlington, UK; V. Sethi, Cummins Ltd, Pune, India

Year

2025

Print Info

Production/Publication ÖVK

Summary

Cummins is committed to a Destination Zero, its product-focused strategy to reach zero carbon emissions, and part of the company’s broader PLANET 2050 environmental sustainability targets. The path to zero emissions involves a wide range of lower and zero carbon powertrain technologies to address emissions reduction in a way that keeps the world, and its industries, moving. Internal combustion engine (ICE) technologies are a crucial transitory step in the journey of Destination Zero. Among these technologies, hydrogen internal combustion engines (H₂-ICE) have the potential to evolve into an important, practical technology that provides both near- and long-term solutions to decarbonization, while progressing customer adoption of hydrogen fuel, as well as supporting the build out of infrastructure for future hydrogen fuel cell technologies. 
This paper describes the development of a 6.7L direct injection (DI), lean burn hydrogen engine through comprehensive analysis-led design, testing, and optimization for key engine sub-systems, including tumble-based combustion system architecture, cylinder head, power cylinder unit, ignition system, low pressure DI fuel injection system, air-handling system, and aftertreatment system.
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ISBN

978-3-9504969-4-9

DOI

https://doi.org/10.62626/sjie-ds1y Copy link

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