Fluidic flowmeter

Details Fluidic flowmeter Fluidic flowmeter

1985-06-27

1986-09-09

Ruehl, Charles A.

Measuring and testing

Volume or rate of flow

System

7386119, G01F 700, G01F 120

Patent

active

046101624

ABSTRACT:
A fluidic flowmeter comprising a combination of an upstream fluidic element and a downstream fluidic element. One of the fluidic elements includes a jet nozzle having a smaller opening area than a jet nozzle of the other. The flowmeter further comprises a bypass passage disposed parallel to the former fluidic element and including valve means, preferably a diaphragm type governor valve. The governor valve includes a main valve member and an auxiliary valve member adapted to open by a fluid pressure upstream thereof when the main valve member is in a closed position. Each of the fluidic elements has a sensor disposed in one of return passages to detect flow rate variations therein. A flow rate indicating device is provided to derive flow rates from signals received from the sensors and indicate the flow rates.

REFERENCES:
patent: 3640133 (1972-02-01), Adams
patent: 3902367 (1975-09-01), Grant et al.
patent: 4107990 (1978-08-01), Ringwall

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