Gas separation – Plural serial basically diverse separating media – Plural stages in unitary casing
Patent
1994-10-07
1996-03-12
Chiesa, Richard L.
Gas separation
Plural serial basically diverse separating media
Plural stages in unitary casing
55270, 55324, 209143, B01D 4506
Patent
active
054982715
ABSTRACT:
A diesel particle virtual impactor sampler provides for a total flow through a virtual impactor after the flow passes through a classifier that removes particles substantially larger than the cutoff point of the virtual impactor. The virtual impactor has two outlets, one for minor flow and one for major flow. In a preferred embodiment, filters are used for separately filtering the major and minor flows and collecting the particles carried thereby so that a determination of the concentration of particles above and below the cutoff point can be obtained. Alternately, the major and minor flows and the particles can be passed through particle analyzer instruments for a direct particle measurement of each of the flows.
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Marple Virgil A.
Olson Bernard A.
Rubow Kenneth L.
Chiesa Richard L.
MSP Corporation
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