The plan is part of a transnational cooperative project (NIP in Germany and A3plus in Austria), to develop a combustion process for a hydrogen internal combustion engine using cryogenic port injection (CPI).

This concept is based on the cryogenic injection of hydrogen into the suction tube of a combustion engine. Through this the air drawn in is rapidly cooled, thereby increasing the overall density of the hydrogen-air mixtures. The result is a higher volumetric mixed heat value.

In this way the power density and efficiency of the engine is substantially improved. In the plan submitted here (the German part of the overall project), special functions for the control of a hydrogen combustion engine with cryogenic injection are to be developed and integrated into a prototype engine control unit.

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