Flow indicator or flowmeter

Details Flow indicator or flowmeter Flow indicator or flowmeter

1990-03-12

1992-03-31

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Using turbine

7386187, G01F 106

Patent

active

050996991

ABSTRACT:
A flow indicator or flowmeter is provided with an impeller which is rotatably mounted in an essentially circular-cylindrical flow chamber of a flow housing which has an inlet channel and an outlet channel. The impeller has an odd number of blades and is visible through a transparent side wall so that rotation of the impeller can be viewed to indicate fluid flow. The impeller can have magnets, ferrite cores or similar impulse creating elements by means of which an electronic circuit is actuated so that the device serves not only as a flow indicator but also as a flowmeter. It is also preferred that the inlet and outlet channels be orientated obliquely relative to a radial direction of the flow chamber such that the fluid impinges on side faces of the impeller blades.

REFERENCES:
patent: 4023410 (1977-05-01), Althaus
patent: 4172381 (1979-10-01), Aigner
patent: 4260637 (1980-06-01), Pankonien
patent: 4379411 (1983-04-01), Laviano et al.
patent: 4534227 (1985-08-01), Petit
patent: 4548084 (1985-10-01), Onoda et al.

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