Vortex fluid meter incorporating a double obstacle
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United States of America Patent
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-
Dec 21, 1999
Grant Date -
N/A
app pub date -
Sep 19, 1996
filing date -
Mar 23, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A vortex fluid meter (1) includes a pipe portion (2) of constant inside diameter in which the fluid flows, at least two obstacles disposed in the middle of the flow of the fluid in said pipe portion (2) each having a generally elongate shape with longitudinal and transverse dimensions perpendicular to the direction of flow of the fluid, and adapted to generate oscillatory fluid vortices, an upstream obstacle (4) having a substantially uniform trapezoidal transverse section and a downstream obstacle (6) having a generally T-shape transverse section, and means (10, 12, 14) for detecting the signal corresponding to the oscillations of said vortices and for deducing therefrom the fluid volume or flowrate.
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