Measuring and testing – Volume or rate of flow – By measuring swirl rate imparted by static means
Patent
1993-07-15
1995-10-17
Chilcot, Jr., Richard E.
Measuring and testing
Volume or rate of flow
By measuring swirl rate imparted by static means
7386118, 7386138, G01F 132, G01F 120, G01F 184
Patent
active
054580056
ABSTRACT:
A fluid mass flow meter comprises a swirl generator 16 followed by a convergent nozzle 20 which produce a strongly swirling flow with periodic pressure fluctuations. The flow is subjected to a Coriolis force in a divergent nozzle 26. The pressure fluctuations are sensed by axially-spaced pressure-collecting pipes 32, 32', and a phase shift in the pressure fluctuations between the two pipes due to the Coriolis force is a measure of mass flow.
REFERENCES:
patent: 4420983 (1983-12-01), Langdon
patent: 4622858 (1986-11-01), Mizerak
patent: 4776222 (1988-10-01), Lew
patent: 5226330 (1993-07-01), Lew
ABBK-Flow Inc.
Chilcot Jr. Richard E.
Oen William L.
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