Technical Paper
Next Generation High Efficiency Boosted Engine Concept
2024-04-09
2024-01-2094
Ford Motor Company, working with FEV North America and Oak Ridge National Laboratory, developed a concept for a next generation of boosted spark ignited engine for application in light-duty on-highway vehicles. Key goals were 23% improved fuel economy and 15% reduced weight compared to a baseline 2016 Model Year Ford 3.5 L Ecoboost engine system in the lead application of a Ford F150. Additional requirements include the use of conventional regular E10 gasoline fuel and conventional exhaust aftertreatment employing 3-way catalyst technology for compliance with U.S. and global pollutant emissions regulations. A modular inline 6-cylinder engine whose technical assumptions include high 14:1 geometric compression ratio, large stroke-to-bore ratio of 1.33, continuously variable intake valve lift and timing, variable geometry turbocharger, active pre-chamber ignition system, cooled low pressure EGR, and innovative active cooling system.