Abstract: An aerodynamic apparatus for mixing components of a fuel mixture comprises two cylindrical chambers--a main chamber and an auxiliary chamber--for swirling the flow of a gaseous component of a fuel mixture which is fed through at least one admission pipe arranged tangentially to the cylindrical surface of the chamber. The outlet pipes for the components are arranged in end walls coaxially with the chambers, and the end of the pipe of the auxiliary chamber is within the main chamber. The ratio of the inside diameters d.sub.1 /d.sub.2 of the outlet pipes for components ranges from 1 to 3.

Abstract: The atomizing device of the present invention comprises a cylindrical swirl chamber provided with a nozzle, and a pipe running coaxially through the chamber and the nozzle to protrude into the zone of material atomization. The device is provided, according to the invention, with another chamber which is essentially an acoustic resonator, the outlet end of said pipe entering the interior of the second chamber which adjoins the nozzle. The second chamber is implemented as a quarter-wave acoustic resonator. The present invention can find most utility when applied in those industries where quality atomization and/or mixture-formation of various materials is involved, such as in the chemical engineering industry.