Abstract: An apparatus and a method for producing an emulsion of a fuel and an emulsifiable component are disclosed. The apparatus comprises a first cavitation chamber for receiving a first fluid, the first fluid being a first one of the fuel and the emulsifiable component, and wherein the apparatus is arranged to produce a swirling flow of the first fluid in the first cavitation chamber. The apparatus comprises a second cavitation chamber for receiving a second fluid, the second fluid being a second one of the fuel and the emulsifiable component, where the apparatus is arranged to produce a swirling flow of the second fluid in the second cavitation chamber. The first cavitation chamber further comprises an outlet and the first cavitation chamber, the outlet and the second cavitation chamber are arranged coaxially. The second cavitation chamber is arranged to receive the first fluid from the first cavitation chamber through the outlet.

Abstract: An apparatus and a method for cavitating a mixture of a fuel and an additive are disclosed. The apparatus comprises a cavitation stream, the cavitation stream comprising a counter jet device, a jet stroke device and a swirling cavitation device. A mixture of a fuel and additive is arranged to pass through the cavitation stream, wherein the mixture undergoes wave and cavitation processing in the swirling cavitation device. The cavitation apparatus further comprises a resonance chamber and a homogenizer, into which the wave and cavitated mixture is passed to obtain an emulsion of improved homogeneity from an outlet of the homogenizer.