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Powerful H2 Engines with Direct Ignition for Medium-/Heavy-Duty Applications

Powerful H2 Engines with Direct Ignition for Medium-/Heavy-Duty Applications Emissions D E V E L O P M EN T Em i s s io n s © FEV Powerful H Engines with Direct Ignition for Medium-/ Heavy-Duty Applications Hydrogen engines, especially in the off-road medium- and heavy-duty segment, offer the possibility to combine a carbon-free energy carrier with the high reliability of a combustion engine. FEV presents corresponding challenges and solutions for the realization of high-power density in H engines with direct injection. The conversion of existing ing pressure of around 30 bar. With well as an increase in NO  emissions Medium-duty/Heavy-duty (MD/HD) exter nal mixture formation, lower because of strong gradients within diesel engines for off-road applications power densities can be achieved due the com bustion temperature field.   to hydrogen operation is possible within to the strong displacement effect, un - The 3-D flow simulation in FIGURE 1 a short time frame. Acquisition costs, less this is counteracted with a two- exemplifies  the improvement in mix- reliability, and service life of H combus- stage turbo charging system. There ture ho mogenization for an HD en - tion engines are evaluated as advanta- is always a residual risk of backfiring, gine. The sig nic fi ant reduction  of the geous compared to fuel cells. High-power whereby current develop ment focuses http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png ATZheavy duty worldwide Springer Journals

Powerful H2 Engines with Direct Ignition for Medium-/Heavy-Duty Applications

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Publisher
Springer Journals
Copyright
Copyright © Springer Fachmedien Wiesbaden GmbH, part of Springer Nature 2023
eISSN
2524-8774
DOI
10.1007/s41321-023-1017-1
Publisher site
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Abstract

Emissions D E V E L O P M EN T Em i s s io n s © FEV Powerful H Engines with Direct Ignition for Medium-/ Heavy-Duty Applications Hydrogen engines, especially in the off-road medium- and heavy-duty segment, offer the possibility to combine a carbon-free energy carrier with the high reliability of a combustion engine. FEV presents corresponding challenges and solutions for the realization of high-power density in H engines with direct injection. The conversion of existing ing pressure of around 30 bar. With well as an increase in NO  emissions Medium-duty/Heavy-duty (MD/HD) exter nal mixture formation, lower because of strong gradients within diesel engines for off-road applications power densities can be achieved due the com bustion temperature field.   to hydrogen operation is possible within to the strong displacement effect, un - The 3-D flow simulation in FIGURE 1 a short time frame. Acquisition costs, less this is counteracted with a two- exemplifies  the improvement in mix- reliability, and service life of H combus- stage turbo charging system. There ture ho mogenization for an HD en - tion engines are evaluated as advanta- is always a residual risk of backfiring, gine. The sig nic fi ant reduction  of the geous compared to fuel cells. High-power whereby current develop ment focuses

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ATZheavy duty worldwide – Springer Journals

Published: May 1, 2023

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