The Differential Stroke Cycle Engine Technology (D-Cycle), invented and owned by Yan Engines, requires only five parts to be changed in existing 4-stroke engines to produce 20% improved fuel efficiency without suffering in engine performance.

The D-Cycle is applicable to all traditional crank-slider ICE, the market opportunity for the D-Cycle technology is significant and, once demonstrated and manufactured en masse, could have far reaching impacts on multiple levels -- substantially improved fuel economy and reduced emissions deployable across fuel agnostic platforms (gasoline, diesel, biofuel and natural gas) with lower switching costs for OEMs, respective to alternative technologies in development. A 20% decrease in fuel consumption alone, would impact global petroleum markets and reduce oil and gas prices; improve the U.S. economy, international trade balance and Federal deficit; reinvigorate domestic manufacturing and create thousands of high paying jobs. D-Cycle could be a g...
The Differential Stroke Cycle Engine Technology (D-Cycle), invented and owned by Yan Engines, requires only five parts to be changed in existing 4-stroke engines to produce 20% improved fuel efficiency without suffering in engine performance.

The D-Cycle is applicable to all traditional crank-slider ICE, the market opportunity for the D-Cycle technology is significant and, once demonstrated and manufactured en masse, could have far reaching impacts on multiple levels -- substantially improved fuel economy and reduced emissions deployable across fuel agnostic platforms (gasoline, diesel, biofuel and natural gas) with lower switching costs for OEMs, respective to alternative technologies in development. A 20% decrease in fuel consumption alone, would impact global petroleum markets and reduce oil and gas prices; improve the U.S. economy, international trade balance and Federal deficit; reinvigorate domestic manufacturing and create thousands of high paying jobs. D-Cycle could be a geopolitical game-changer.

YAN Engines has begun development for two different engines - a heavy-duty fleet engine retrofit and a small passenger vehicle engine.

For the military, there is an immediate need for retrofit engine technologies that can be adapted to existing vast base of DoD diesel and gas driven platforms to significantly increase fuel efficiency. The technologies should not require whole new engines, but rather be comprised of upgrades/retrofits for existing engines (reducing costs), maintaining parts availability of non-retrofit remainder of engine/transmission. The technologies should be able to be applied to the existing fleet without major changes to the current infrastructure. These technologies can act as an extremely efficient ‘bridge’ technology until Li- Ion, hydrogen fuel cells and/or other hybridic technologies come online.

In addition to the military, large commercial fleets face similar, though less acute, issues. Companies such as FedEx, UPS, and United Van Lines all with large fleet vehicle investments would benefit from fuel efficient retrofits that have a quicker return on investment than full vehicle or power system replacement.

YAN has raised nearly $5M in equity investment and government grants to support development of intellectual property. We are solidifying our patent portfolio in preparation for licensing with OEMs.
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