Device for measuring mass flow

Details Device for measuring mass flow Device for measuring mass flow

1991-08-30

1993-03-09

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Mass flow by imparting angular or transverse momentum to the...

G01F 182

Patent

active

051918021

ABSTRACT:
An apparatus for measuring the flow rate of a stream of material includes an impeller shaft; an impeller wheel secured to the impeller shaft; a first roller bearing having an inner race receiving and supporting the impeller shaft; a drive motor having an output shaft; a first gear secured to the output shaft; a second gear secured to the impeller shaft; and a third gear meshing with the first and second gears, whereby the drive motor is drivingly connected to the impeller shaft by the first, second and third gears for rotating the impeller shaft with a predetermined rpm. The stream of material is directed onto the impeller wheel, whereby a braking torque is applied to the impeller wheel by the stream of material impinging thereon. There are further provided a force measuring device operatively coupled to the third gear; a second roller bearing receiving and rotatably supporting the outer race of the first roller bearing; and a drive for rotating the outer race with an rpm which is at least identical to the rpm of the impeller shaft.

REFERENCES:
patent: 2771773 (1956-11-01), Wallace
patent: 2983556 (1961-05-01), Coan
patent: 4133587 (1979-01-01), Kume
patent: 4700578 (1987-10-01), Fassbinder

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