For commercial vehicles, the hydrogen internal combustion engine (H2 ICE) is a propulsion variant that enables fast defossilisation in the HD vehicle segment. MAHLE is intensively investigating this kind of engines and develops components for this application. A research engine was built and operated with a combustion system with direct injection of hydrogen (H2 ICE DI) whereas experience is used from operating the same aggregate in port fuel injection configuration (H2 ICE PFI) in the preceding project. The results demonstrate the potentials of the DI combustion system in terms of engine load and efficiency. Furthermore, a direct comparison to the PFI combustion system is done. Boundary condition is the realization on a typical commercial vehicle engine and the use of components that were developed for a future series use of H2 ICE engines. MAHLE deducts important insight related to requirements for the components from these investigations and uses the opportunity to test further subsystems for this application, e.g. in the field of crank case ventilation.
H2 ICE DI Multicylinder Engine Tests for Thermodynamics and Component Development
Proceedings
International MTZ Conference on Heavy-Duty Engines ; 2022 ; Donaueschingen, Deutschland November 16, 2022 - November 17, 2022
2023-08-29
13 pages
Article/Chapter (Book)
Electronic Resource
German
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