As a fuel in the combustion process, hydrogen is an attractive solution with its absolute CO2 neutrality. Of course, the premise that hydrogen is produced exclusively using renewable energy sources must be taken into account. In the field of injection systems, Liebherr is currently working on solutions for direct hydrogen injection that is ready for series production in correlation with the binding CO2 targets for trucks introduced in 2019. Liebherr is announcing the first engine tests before the end of the year.
An additional alternative is offered by synthetic fuels. Electricity-based fuels, the so-called e-fuels, contain significantly more oxygen than diesel fuels. Consequently, synthetic fuels burn much cleaner and generate fewer emissions. However, as a result of the higher oxygen content, energy density is lower, so more fuel is needed to generate the same engine power as a diesel engine. Synthetic fuels, therefore, require a particularly high throughput of injection components. Additionally, e-fuels have special physio-chemical properties that require individual components to be particularly robust.
Liebherr is rising to these challenges in partnership with representatives from the energy supply industry, process engineering, vehicle and engine construction as well as research & development. As part of the research work, initial tests with methanol-based fuels have already been carried out, with new insights.
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