Classifying – separating – and assorting solids – Fluid suspension – Gaseous
Patent
1987-08-05
1988-08-30
Reeves, Robert B.
Classifying, separating, and assorting solids
Fluid suspension
Gaseous
55270, 73 28, 209133, B07B 700
Patent
active
047675241
ABSTRACT:
A virtual impactor 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 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.
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"Particle Collection Characteristics of a Single-Stage Dichotomous Sampler", McFarland et al., Environmental Science & Technology, vol. 12, No. 6, Jun. 1978.
Chen Bean T.
Cheng Yung-Sung
Newton George J.
Yeh Hsu-Chi
Lovelace Medical Foundation
Reeves Robert B.
Wacyra Edward M.
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