Karman vortex flow meter

Details Karman vortex flow meter Karman vortex flow meter

1994-01-07

1995-03-21

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Proportional

7386122, G01F 132

Patent

active

053985486

ABSTRACT:
A Karman vortex flow meter in which a main passage 1 and a bypass passage 2 are adjacent to each other; a throttle portion 12 is formed at the inlet of the bypass passage to continuously reduce the cross-sectional surface area of the passage, and a flared portion 14 is formed in the bypass passage 2 so that the cross-sectional surface area of the passage is continuously enlarged from an intermediate portion of the passage to the outlet of it. Further, the inlets and the outlets of the main passage and the bypass passage are each arranged in single planes perpendicular to the flow direction of the fluid to be measured, and the boundary portions 16, 17 between the main passage and the bypass passage 2 are respectively formed to have a smallest thickness.

REFERENCES:
patent: 3374673 (1968-03-01), Trageser
patent: 4392385 (1983-07-01), Okuda et al.
patent: 4982602 (1991-01-01), Stiefel et al.
patent: 5052229 (1991-10-01), Tanimura et al.

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