The CEM Engine is being developed by E.P. Industries. The CEM Engine will be an efficient method of converting fuel energy into electrical energy.
The CEM Engine will be capable of delivering substantially greater performance with greatly reduced manufacturing cost. A novel concept for significantly increasing the efficiency of the four-stroke cycle internal combustion engine, the Department of Defense in 1997 awarded the engine concept an SBIR. The super-charged CEM Engine has the potential to become one of the first self-lubricating, air-cooled, multi-fuel, four-stroke cycle engines to deliver two horsepower/pound.
Read more here