The main emphasis is on modernizing the fuel system to ensure the formation of a leaner and more uniform air-fuel mixture. The compression ratio in such engines is intended to be brought to 18:1, with ignition organized on the diesel principle. A complete abandonment of spark plugs looks quite likely, but difficulties remain in managing the combustion process at low and high speeds.
Racing engine technologies applied in Skyactiv
In addition, specialists intend to improve the efficiency of exhaust gas removal, which should reduce the temperature inside the cylinders. Overall, improving heat exchange processes and introducing new injection solutions will extend the service life of engines, ensure their compliance with strict environmental standards designed for the period 2020–2025, and the efficiency of such units will increase by 30%.
