Vapor Emission System

60-95% of the total hydrocarbon emissions from gasoline engines are generated during the first 1-2 minutes of operation following a cold start.  This occurs in part because of the difficulty in vaporizing enough fuel in a cold engine to achieve stable combustion.  Researchers at the Company have developed a vapor emission system that uses a heated vapor separator which generates fuel in vapor form. Then, the condenser cools the fuel vapor to produce a liquid secondary fuel that is more volatile than the primary fuel.  The controller determines whether the engine is supplied with primary or secondary fuel.  The secondary fuel is used only during an initial engine operation period for removal of hydrocarbon emissions, which are a major factor in the generation of smog.  This simple, cost-effective device reduces startup emissions by up to 80% and total vehicle emissions by 50%-75%.