Motivation: Reduction of CO2 emissions by increased engine compression ratio (CR), High water to fuel ratios for Direct Water Injection (DWI) to avoid engine knock limitation for increased engine efficiency, Water recovery from exhaust gas condensation as enabler for self-sustaining water injection and increase of customer acceptance for water injection systems and Stoichiometric air/fuel ratio in entire engine map for low CO2 emissions and RDE compliance. Read more.