Patent ID: 7704294

Claim:
A device for concentrating aerosols in a gas stream and removing said aerosols from said gas stream, comprising: an aerodynamic lens array including a multiplicity of aerodynamic lenses, each having an input end and an output end, and an internal flow channel extending between said input end and said output end, with a series of internal slit orifices through baffles extending laterally into said internal flow channel, and a final slit orifice through which a concentrated aerosol sheet emerges from said output end, said slit orifices decreasing in width from said input end to said output end; said baffles including walls that project into said internal flow channel presenting a surface facing said input end, and an opposite surface facing said output end; each aerodynamic lens includes a skimmer opening upstream of said output end for particle-free bulk gas flow through said skimmer openings to an integral chimney; said aerodynamic lens has substantially vertical walls and substantially vertical surfaces defining said slit orifices; said aerodynamic lens array having multiple layers of aerodynamic lenses, each layer having multiple aerodynamic lenses in a parallel, side-by-side rank, and banks of lenses in a stack of said parallel ranks to multiply the available flow rate through the device.