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U.S. Department of Energy
Office of Scientific and Technical Information

Virtual impactor

Patent ·
OSTI ID:7164329
A virtual impactor is described having improved efficiency and low wall losses in which a core of clean air is inserted into the aerosol flow while aerosol flow is maintained adjacent to the inner wall surfaces of the focusing portion of the impactor. The flow rate of the core and the length of the throat of the impactor's collection probe, as well as the dimensional relationships of other components of the impactor adjacent the separation region of the impactor, are selected to optimize separation efficiency. 4 figs.
DOE Contract Number:
AC04-76EV01013
Assignee:
Lovelace Medical Foundation, Albuquerque, NM (United States)
Patent Number(s):
A; US 4767524
Application Number:
PPN: US 7-081928
OSTI ID:
7164329
Country of Publication:
United States
Language:
English