Area type flow rate measuring device

Details Area type flow rate measuring device Area type flow rate measuring device

1978-04-11

1980-04-29

Schwadron, Martin P.

Fluid handling

Systems

Flow path with serial valves and/or closures

137487, 123139AW, F16K 3100, F02M 6900

Patent

active

042001200

ABSTRACT:
An area type flow rate measuring device comprising an upstream valve and a downstream valve which are disposed in a channel for a fluid, a feedback control mechanism for keeping the pressure difference across the upstream valve constant, the rate of flow of the fluid being measured on the basis of the area of opening of the upstream valve, a pipeline which bypasses the upstream valve, and a mechanism disposed in the bypass pipeline for amplifying the pressure difference by utilizing the flow of the fluid, the arrangement being such that the pressure produced in the mechanism is utilized to drive a valve opening mechanism.

REFERENCES:
patent: 1681762 (1928-08-01), Connet
patent: 1981576 (1934-10-01), Woolfenden
patent: 2627703 (1953-02-01), Spencer
patent: 2829664 (1958-04-01), Mountford
patent: 3739762 (1973-06-01), Jackson
patent: 4058100 (1977-10-01), Tanaka et al.
patent: 4085723 (1978-04-01), Tanaka et al.
Streeter, Victor L., Fluid Mechanics, McGraw-Hill Book Co., 1971, pp. 424, 471, 464-467.

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