Hydrogen combustion engine ready to for debut

The Mercedes-Benz Atego 4×2 vehicle used in the H2-ICE project has been modified to run on Cummins’ B6.7H hydrogen internal combustion engine, which is capable of producing 290 horsepower (216kW).

The vehicle is said to have an operational range of up to 500km and a 700-bar pressure, high-capacity hydrogen storage system reinforced with carbon fiber.

The B6.7H, which has 1200Nm of peak torque, is intended to operate in the 10-to-26T GVW truck category, according to Cummins. The twin hydrogen fuel tanks, which have a total capacity of about 40kg and have additional room on the chassis for an auxiliary 10kg tank, were developed by Cummins in collaboration with the expert in hydrogen storage NPROXX.

This high-capacity storage, when combined with the energy efficiency of direct-injection learn-burn combustion, offers a range that is more than what a battery-electric vehicle of equivalent size could provide. The B6.7H-powered truck can be refueled in as little as 10 minutes, according to Cummins.

The X15H hydrogen engine, which is appropriate for long-distance vehicles up to 44T GVW and has a high rating of 530hp (395kW) and peak torque of 2600Nm, will be displayed alongside the B6.7H hydrogen engine at the Cummins booth at IAA. According to Cummins, a heavy-duty vehicle powered by the X15H and equipped with a high-capacity hydrogen fuel storage system could potentially have an operational range of more than 1,000 kilometers.

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