Flowmeter

Details Flowmeter Flowmeter

1975-08-21

1976-12-28

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Expansible chamber

G01F 112

Patent

active

039994325

ABSTRACT:
A flowmeter comprises an axial flow measurement turbine having a relatively thin turbine disc secured to a shaft which is supported on at least one axial bearing. At high flow rates, it is possible for a large pressure differential to build up between the opposite axial sides of the disc, subjecting the turbine to an axial force which results in excessive friction at the bearing and therefore reduced life and reduced accuracy. To solve this problem, the disc is provided with apertures passing axially therethrough, and a set of blades is secured to the upstream face of the disc to force fluid to flow through these apertures, and thus substantially eliminate the pressure differential.

REFERENCES:
patent: 3388595 (1968-06-01), Last et al.
patent: 3518881 (1970-07-01), Erickson
patent: 3756079 (1973-09-01), November
patent: 3811323 (1974-05-01), Swenson

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