Since its invention by Nicolaus Otto in 1861, the internal combustion engine (ICE) has remained large, heavy and inefficient. By adopting a revolutionary new design, our Rotary Piston ICE has changed all that. Above is the single cylinder, 4 stroke 150 cc demonstrator we built for the patent application. On the "Videos" page you can see how smoothly it runs. Although the engine is only attached to a cantilever type support, there is hardly any vibration or oscillation -- something usually unheard of in a single cylinder engine. Since our Rotary Piston engine has high torque and is already running at an ideal RPM, it can have a direct drive without any transmission. The engine is dynamically air cooled, which removes the need for a bulky liquid cooling system. The picture below shows how the engine can also be configured as an electric generator. To testify to its performance, low weight and small footprint, compare our new 4 stroke 250 cc Rotary Piston engine with an ordinary generator currently on the market. Both have the same 10 kW output. Such an advanced generator solution will prove attractive as a high-performance lightweight Range Extender in tomorrow's hybrid vehicles, as a Auxiliary Power Unit (APU) for the trucking industry worldwide, and in any other application were electric energy is immediately needed. The Rotary Piston Engine has an extremely low vibration level, as well as high torque at the RPM level used by an aircraft propeller. These superior features inherent in the design make it the best candidate for drones or Unmanned Aerial Vehicle (UAV) applications. Small size and light weight also mean more payload or fuel can be carried for greater range. Please feel free to browse around, refer this site to your friends or contact us directly if you have an interest.