Compound liquid flow meter with fast crossover characteristic

Details Compound liquid flow meter with fast crossover characteristic Compound liquid flow meter with fast crossover characteristic

1982-01-25

1984-03-20

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

System

G01F 700

Patent

active

044373449

ABSTRACT:
This compound flow meter includes a high capacity meter and a low capacity meter connected in parallel with it. The flow through the high capacity meter is controlled by a main valve subject to the pressure difference across the meter and biased closed by a spring. The flow through the low capacity meter is controlled by an auxiliary valve. Mounted on the main valve is a means responsive to the pressure difference across it and moving in the same direction as the main valve in response to that pressure difference. That pressure difference responsive means operates a piston which is aligned with the auxiliary valve, so that the operation of the auxiliary valve is determined by the sum of the movements of the main valve and the pressure difference responsive means.

REFERENCES:
patent: 860100 (1907-07-01), Meinecke
patent: 2148253 (1939-02-01), Barge
patent: 3088481 (1963-05-01), Brueckner et al.
patent: 3395578 (1968-08-01), Simonds, Jr.
patent: 3453884 (1969-07-01), Marx

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