Ford / AVL study concludes mid-level ethanol blend attractive as a long-term future fuel for use in optimized engines in US

Green Car Congress

Given the properties of the fuel blend, improved fuel efficiencies can be generated by several approaches, including downsizing/downspeeding; increased compression ratio; reduced enrichment; and the leveraging of improved efficiency at part load. Downsizing/downspeeding. This increase in BMEP can enable downsizing of the engine displacement and/or downspeeding through revised gear ratios, findal drive ratio, or shift scheduling. Shelby, M., Shelby, M.,

2013 219

Team from GM, Ford, FCA reviews how to calculate engine efficiency benefits of high octane fuels

Green Car Congress

Knock and fuel octane rating are becoming increasingly important due to many powertrain design trends including downsizing, downspeeding, cylinder deactivation, and hybridization. … considered a number of factors, including engine efficiency increase from a higher compression ratio; engine efficiency increase from downsizing (enabled by higher compression ratio); and other fuel-related efficiency considerations. Shelby, and William M.

2015 188

Developing Fords EcoBoost Combustion System

Green Car Congress

Ford’s turbocharged, gasoline direct injection EcoBoost engines are targeted to play a significant near-term role in Ford’s efforts to reduce fuel consumption by enabling downsizing. Some of the droplets may escape into the exhaust system and result in high UHC emissions. Configuration of the 3.5L V6 EcoBoost Combustion System. A 6-hole fuel injector is mounted between intake ports. The spark plug is at the center of the chamber.

2009 183