Japanese aero engine manufactuer IHI is working on a a low fuel consumption turbofan (paid subscription required) to compete with US and European engines on future regional jets.

One of the interesting features of the engine, IHI calls it the Eco turbofan, mockup shown is how the fan wraps around its hub, so as to cover more of the frontal area of the engine, which is intended to improve efficiency.

In its initial form, it should put out around 9,000 lbs of thrust with a 7:1 bypass ratio.