A consortium led by Cummins is celebrating the completion of a joint project to develop hydrogen internal combustion engine technology for commercial vehicles.
Project Brunel, involving Johnson Matthey, PHINIA and Zircotec alongside Cummins, saw the delivery of a 6.7-litre hydrogen internal combustion engine (H2-ICE) for medium-duty trucks and buses. It delivers a more than 99% reduction in tailpipe carbon emissions and ultra-low Nox when compared to the current diesel engine standard.
The engine was developed using Cummins’ proven spark-ignited engine platform, with PHINIA’s hydrogen fuel injection technology, Johnson Matthey’s after-treatment catalyst and advanced metals chemistry development and Zircotec’s hydrogen barrier coatings. It has brought about significant improvements in engine performance and durability.
Johnathan Atkinson, Executive Director – Product Strategy, at Cummins, commented: “Project Brunel highlights the power of collaboration between industry leaders and underscores our ongoing commitment to industry decarbonisation. This project has successfully delivered a viable, familiar power option that meets the operating requirements of today’s commercial vehicles – with zero-carbon fuel, and without the need for a complete vehicle redesign.”

