Self-proportional fluid metering device actuated by a pressurize

Details Self-proportional fluid metering device actuated by a pressurize Self-proportional fluid metering device actuated by a pressurize

1981-05-26

1982-05-18

Spiegel, H. Jay

Fluid handling

Self-proportioning or correlating systems

Self-proportioning flow systems

13710119, 13710131, G05D 1113

Patent

active

043300030

ABSTRACT:
Fluid is metered into a conduit by a device which includes a detector for detecting the flow rate in the conduit, an amplifier for producing a pneumatic pressure which is dependent on the flow rate sensed by the detector, a control unit having a control shaft connected to a control diaphragm which is subjected to the pneumatic pressure from the amplifier, a motor unit having a hydraulically-pulsated motor/diaphragm connected to a motor shaft which is aligned with and contacted by the control shaft, and a pumping unit having a pump diaphragm connected to the motor shaft to meter fluid into the conduit.

REFERENCES:
patent: 246467 (1881-08-01), Cridge
patent: 1055781 (1913-03-01), Mitchell et al.
patent: 1753662 (1930-04-01), Merker
patent: 2665707 (1954-01-01), Stover
patent: 2675758 (1954-04-01), Hughes
patent: 2844167 (1958-07-01), Griswold
patent: 3549048 (1970-12-01), Goodman
patent: 3552428 (1971-01-01), Pemberton

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