Marelli Unveiles Hydrogen Propulsion Systems At CTI Symposium 2023
Marelli unveiled its first hydrogen fuel system, including specific injectors with patented design and an advanced Engine Control Unit at CTI Symposium 2023 in Germany
This state-of-the-art solution is aimed at hydrogen engines, which are similar to traditional endothermic engines but use hydrogen as fuel, producing no CO2 emissions, thus representing an interesting option for eco-mobility.
Based on the company’s expertise in the high-pressure direct injection technology, the new Marelli’s fuel system meets the strict requirements of these engines, ensuring precision, efficiency, performance, easy integration and complexity reduction.
As hydrogen is a very light and reactive gas, a very precise fuel injection inside the combustion chamber is required, together with specific solutions to avoid pre-ignitions and backfire. It also needs a higher compression ratio than common gasoline engines to exploit the fuel efficiently. This makes the direct injection system a key enabler for this technology.
The fuel system also includes a pressure reducer with an integrated regulator, to reduce hydrogen pressure to the injection’s working pressure, and a specific manifold, tested for the most severe automotive applications. The whole functioning is controlled by an advanced Engine Control Unit, featuring software algorithms and specific strategies developed in-house by Marelli to manage the more complex hydrogen-based system, the company said in a press statement.
Marelli will present this new technology at booth G12 at the CTI Symposium 2023, one of the largest international industry events in Europe about sustainable automotive powertrain technologies for passenger cars and commercial vehicles, taking place in Berlin, Germany, on December 5-6, 2023.
