| 摘要 |
The specification discloses apparatus for fragmenting fluid fuels into submicron size constituents of substantially uniform size for improved combustion and blue flame burning. In an improved nozzle (10), fluid fuel at constant pressure is introduced tangentially into a frustroconical swirl chamber (20) whereby vortical flow of the fluid is induced. A frequency multiplier and amplitude amplifier (30) for generating an ultrasonic field of constant high frequency is disposed downstream of the swirl chamber (20) in coaxial alignment therewith. The frequency multiplier and amplitude amplifier (30) includes a generally cylindrical compression chamber (32), open at the upstream end to receive the vortical flow and substantially closed at the downstream end. The compression chamber (32) is peripherally intersected by a ring of paraxially aligned multiplier cavities (34) of smaller diameter which are open at the upstream end to define a series of ports (36) whereby vortical flow in the compression chamber (32) may be discharged into the multiplier cavities (34). The multiplier cavities also open at the downstream end are arranged to provide a highly concentrated force field of constant ultrasonic frequency for fragmenting fluid fuels into constituents of substantially uniform size.
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