The present embodiments provide methods and apparatuses for use in enhancing and/or treating fluids, such as fuels. Some embodiments provide apparatuses for use in treating fuel that comprise a first conduit having an input end, an output end, and a metallic interior surface; a second conduit positioned...http://www.google.es/patents/US7383828?utm_source=gb-gplus-sharePatente US7383828 - Method and apparatus for use in enhancing fuels