Externally pressurized porous cylinder for multiple surface aerosol generation and method of generation

Patent · 31 December 1987

OSTI ID:866582

Apel, Charles T ^[1]; Layman, Lawrence R ^[1]; Gallimore, David L ^[1]

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1. Los Alamos, NM

A nebulizer for generating aerosol having small droplet sizes and high efficiency at low sample introduction rates. The nebulizer has a cylindrical gas permeable active surface. A sleeve is disposed around the cylinder and gas is provided from the sleeve to the interior of the cylinder formed by the active surface. In operation, a liquid is provided to the inside of the gas permeable surface. The gas contacts the wetted surface and forms small bubbles which burst to form an aerosol. Those bubbles which are large are carried by momentum to another part of the cylinder where they are renebulized. This process continues until the entire sample is nebulized into aerosol sized droplets.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM
• DOE Contract Number: W-7405-ENG-36
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4743407
• OSTI ID: 866582
• Country of Publication: United States
• Language: English

Related Subjects

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active
active surface
aerosol
bubbles
burst
carried
contacts
continues
cylinder
cylindrical
cylindrical gas
disposed
droplet
droplet size
droplets
efficiency
entire
externally
externally pressurized
form
formed
forms
gas
gas contact
gas contacts
gas permeable
generating
generation
inside
interior
introduction
liquid
method
momentum
multiple
nebulized
nebulizer
operation
permeable
permeable surface
porous
pressurized
process
process continues
provided
rates
renebulized
sample
sample introduction
sized
sized droplets
sizes
sleeve
surface
wetted