Advanced Clean Transportation Expo (ACT)
Explore North America’s Largest Advanced Commercial Vehicle Technology Event. Each year, ACT Expo brings together fleet operators, OEMs, and technology providers to spotlight solutions that can help fleets improve efficiency, reduce costs, and stay ahead in a rapidly changing market.
Hydrogen fueling stations and testing systems
Electrohydraulic drive systems for piston compressors and cryopumps
The approach for systems from approx. 10 kg H2/h is based on a displacement-controlled drive with variable speed and/or variable displacement. This avoids the losses that occur when a control valve is used to manage the drive. The electrohydraulic solution allows needs-based power control. Power electronics and digital control systems also come from Bosch Rexroth. The latter play a key role in ensuring smooth running and exact process control. This way, the piston movement makes optimum use of the compression space and achieves the highest possible gas-side efficiency. A suitable compressor drive cylinder can be supplied for every electrohydraulic system.
CryoPump Station with integrated cryogenic pump
The CryoPump Station revolutionizes hydrogen infrastructure with innovative technology tailored to the challenges of hydrogen mobility. Our cryopump technology enables economical hydrogen refueling, reduces operating costs by up to 70 % and reduces the space requirements of refueling stations, facilitating integration into existing structures. It was developed with Firstelement Fuel, the leading operator of hydrogen refueling stations.
Servo hydraulic drive systems for medium hydrogen volumes
Bosch Rexroth also offers variants developed together with partner companies for medium and smaller outputs. The 75 kW CytroCore compressor drive can be used to compress both liquid and gaseous hydrogen. For optimum energy efficiency, Bosch Rexroth relies on so-called displacement control. In addition, the drive systems for compressors require less than one square meter of installation space and are much quieter than conventional drive systems. After a one-off parameterization, they are ready for immediate use. They communicate with the control system for the hydrogen filling station via open interfaces.
New cryopump: Refueling 100 kg hydrogen in 10 minutes
Bosch Rexroth developed the new electrohydraulically driven cryopump in collaboration with FirstElement Fuel, the market leader for the commercial operation of hydrogen filling stations in the USA. With a connection rating of 280 kW, it compresses liquid hydrogen to 875 bar for the direct refueling of heavy trucks. The aim is to refuel vehicles with 100 kg of hydrogen within 10 minutes. With direct refueling, there is no need for temporary storage tanks at filling stations.