Cummins revealed its fourth-generation hydrogen fuel cell engine at IAA. Designed to meet the duty-cycle, performance and packaging requirements of medium- and heavy-duty trucks and buses, the fuel cell technology is available in 135 kW single and 270 kW dual modules.

135 kW fuel cell system

Scania in Europe and Daimler Trucks North America have each announced collaborations with Cummins to develop and integrate these next-generation fuel cell engines into demonstrator vehicles.

The systems use fourth-generation variable pressure technology to provide higher power density, power nodes and operating temperatures for easier system integration into vehicles. They also have strong operating cycle efficiency and durability for a lower total cost of ownership.