Mixing device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 26, 1993
Grant Date -
N/A
app pub date -
Mar 19, 1991
filing date -
Apr 6, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A mixing device for use in a duct (12), particularly for use when testing the efficiency of a filter (10) in the duct by aerosol injection, consists of a pipe (24) with a closed end arranged near the middle of the duct (12). The other end of the pipe is connected to a source (26) of compressed air. Near the closed end are one or more narrow holes (28) so that narrow air jets are created across the width of the duct. The air jets create large-scale turbulence in air flowing in the duct, even where that air flow was already turbulent, such that thorough mixing is achieved within as little as two duct diameters or less, while producing negligible pressure drop. The mixing device may be combined with an aerosol injector (20, 22).
First Claim
Other Claims data not available