Aerosol generator and apparatus producing small particles
AssigneeKorea Advanced Institute of Science and Technology
InventorsSeung-Bin Park, Yun-Chan Kang
Life of this patent
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Abstract
An aerosol generator for producing fine droplets in large quantities is used in an apparatus which can produce small particles having a high degree of crystallization and large surface area. The aerosol generator includes a chamber having a porous filter and a solution, and air is supplied to an upper side of the filter. A low pressure driving force, such as by a vacuum, is supplied to the chamber below the filter to generate droplets. A pyrogenetic reactor dries and pyrolyzes the droplets produced by the aerosol generator to give ultrafine particles and an ultrafine particle collector collects the ultrafine particles obtained by the pyrogenetic reactor. The low pressure driving force moves the droplets through the pyroletic reactor.
Claims6
An aerosol generator for generating droplets from a solution which comprises:
- a chamber having a porous filter to generate droplets;
- a nozzle positioned on the upper part of the chamber for spraying the solution onto the upper surface of said filter;
- means for supplying air to mix with the solution being sprayed;
- and
- means for supplying a low pressure to the part of said chamber below said filter to exert a driving force for the solution passing through said filter to cause expansion into droplets.
Dependencies are inferred from the claim text.