In their 1.0L 3-cylinder turbo Ecoboost engine, that is.
http://www.greencarcongress.com/2016/11/20161130-cylinder.html
Significant modifications were required to get a 6% fuel economy improvement:
Quote:
Ford’s single-cylinder deactivation design reduces complexity to make volume production achievable, but also presented significant challenges in maintaining the 1.0-liter EcoBoost engine’s acclaimed refinement—delivered using innovations including an offset crankshaft configuration and deliberately “unbalanced” flywheel and pulley that counteract vibration.
A new dual-mass flywheel and a vibration-damping clutch disc help neutralize engine oscillations when running on two cylinders, especially at lower rpm, and enable a wider operating range. Intake and exhaust valves are closed when the system is active, trapping gasses to provide a spring effect that helps balance forces across the three cylinders for refinement, and also retain temperatures inside the cylinder that maintain fuel efficiency when reactivated.
New engine mounts, drive shafts and suspension bushes also will be specially tuned for refinement. The 1.0-liter EcoBoost will feature enhanced durability to cope with the different loading forces resulting from cylinder deactivation, including a new camshaft chain, and valve rockers formed using advanced metal injection moulding.
Will the 3.5L Ecoboost V6 be next in line for this tech?
http://www.greencarcongress.com/2016/11/20161130-cylinder.html
Significant modifications were required to get a 6% fuel economy improvement:
Quote:
Ford’s single-cylinder deactivation design reduces complexity to make volume production achievable, but also presented significant challenges in maintaining the 1.0-liter EcoBoost engine’s acclaimed refinement—delivered using innovations including an offset crankshaft configuration and deliberately “unbalanced” flywheel and pulley that counteract vibration.
A new dual-mass flywheel and a vibration-damping clutch disc help neutralize engine oscillations when running on two cylinders, especially at lower rpm, and enable a wider operating range. Intake and exhaust valves are closed when the system is active, trapping gasses to provide a spring effect that helps balance forces across the three cylinders for refinement, and also retain temperatures inside the cylinder that maintain fuel efficiency when reactivated.
New engine mounts, drive shafts and suspension bushes also will be specially tuned for refinement. The 1.0-liter EcoBoost will feature enhanced durability to cope with the different loading forces resulting from cylinder deactivation, including a new camshaft chain, and valve rockers formed using advanced metal injection moulding.
Will the 3.5L Ecoboost V6 be next in line for this tech?
