Apparatus for metering fluid flow

Measuring and testing – Volume or rate of flow – Combined

Patent

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G01F 1502

Patent

active

041932994

ABSTRACT:
Fluid flow metering and control apparatus includes a positive displacement flow meter, a pressure sensor responsive to the pressure difference between the inlet and the outlet of the flow meter and a servo drive mechanism controlled by the pressure difference sensor to maintain the pressure difference between the inlet and outlet side of the flow meter at zero. A hydraulic motor is utilized as the servo drive means.

REFERENCES:
patent: 1797233 (1931-03-01), Huebotter
patent: 3633420 (1972-01-01), Holzem

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