YAN Engines recently completed a D-Cycle modification the Ford EcoBoost 1.0L. The EcoBoost is a compact yet powerful three-cylinder engine and one of the best, most fuel efficient production engines in the world. It was awarded the 2017 International Engine of the Year “Best Engine Under 1.0L” for six years in a row.
YAN Engines first created a full engine map of the baseline engine, then modified the engine to use D-Cycle pistons. The prototype was then re-tested and has achieved 20% increase in fuel efficiency while exceeding the stock engine’s torque and power output.
Under contract with the US Marine Corps, YAN Engines retrofitted a Medium Tactical Vehicle Replacement (MTVR) convoy truck engine with D-Cycle. USMC’s program goal is to increase the fuel efficiency of the MTVR fleet of 33,000 trucks by 20%.
The MTVR baseline engine is a commercial heavy-duty diesel engine that was retrofitted with D-Cycle for fuel efficiency, cost savings, and increased driving range.
The MTVR + D-Cycle retrofitted engine successfully held idle and has run up to its baseline engine equivalent RPMs in over 40 tests thus far. We estimate that increased brake thermal efficiency of 20% across the drive-cycle. This retrofit will need to undergo certified engine dynamometer testing before robustness and vehicle integration testing.