Vortex flow meter
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United States of America Patent
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Jun 13, 1989
Grant Date -
N/A
app pub date -
Mar 10, 1987
filing date -
Mar 15, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A vortex flow meter having a vortex generator comprises a plurality of vortex generating elements installed in a fluid passage perpendicular to the fluid's flow. An upstream-side vortex generating element and a downstream-side vortex generating element are both arranged in parallel at a predetermined interval therebetween in the direction of the fluid's flow. Zero to plural flat plates are arranged in parallel at equal intervals between both vortex generating elements. The representative length portions of the vortex generating elements are located respectively on the surfaces opposed to each other. The frequency ratio of the vortexes generated, when independently arranged, are 0.7 to 0.9 on the standard basis of the upstream-side vortex generating element.
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