Patent ID: 7814933

Claim:
An apparatus for stabilizing the concentration of a previously generated aerosol, the apparatus comprises: an aerosol inlet channel which receives an externally generated first aerosol including a gas and a particle suspended in the gas; an aerosol pressure adjustment unit which accelerates the externally generated first aerosol and is connected to the aerosol inlet channel; an aerosol transport channel connected to the aerosol pressure adjustment unit; a buffer connected to the aerosol transport channel, wherein the buffer has a sectional area which is significantly larger than that of either the aerosol inlet channel or the aerosol transport channel; an aerosol outlet channel connected to the buffer and an outside a feedback channel which is separate from the aerosol transport channel and the aerosol outlet channel and which connects the buffer and the aerosol pressure adjustment unit; wherein the externally generated first aerosol accelerated by the aerosol pressure adjustment unit reaches the buffer via the aerosol transport channel and is fluidly mixed with a second aerosol having a different particulate density than the externally generated first aerosol in the buffer to generate a third aerosol, wherein the third aerosol is output to the outlet channel, and wherein the feedback channel feeds back a portion of the third aerosol present in the buffer to the aerosol transport channel.