A mechanized emulsifier is disclosed for mixing water and hydrocarbon fuels for boilers and internal combustion engines. A rotor is driven in an annular chamber and liquids drawn in at the axis of the rotor are thrown out through narrow radial passages therein to impinge on the outer wall of the annular...http://www.google.es/patents/US4294549?utm_source=gb-gplus-sharePatente US4294549 - Mixing apparatus
