Flow system of static parameters

Details Flow system of static parameters Flow system of static parameters

1981-10-02

1989-01-24

Cohan, Alan

Fluid handling

Systems

Flow path with serial valves and/or closures

13750512, G05D 1600

Patent

active

047995114

ABSTRACT:
A linear flow system of static or unchanging parameters is provided to dispense a fluid or gas at a constant rate of flow independent of fluctuations in discharge line pressures. The system is composed of at least: a downstream pressure regulating device to maintain an initial constant conduit line pressure P1, a flow regulating device to establish a constant internal and discharge rate of flow by maintaining a constant effective orifice area therethrough, and an upstream pressure regulating device to maintain a second constant conduit line pressure P2. Interposed between the supply source and the downstream pressure regulator responsible for maintaining the initial constant conduit line pressure P1, is an integrally connected series of downstream pressure regulators adapted to synergistically buffer and preserve P1 from fluctuations in supply line pressure. A series of upstream pressure regulators, interposed between the back pressure regulator which maintains the constant conduit line pressure P2 and the discharge line, preserves the constant conduit line pressure P2 from fluctuations in discharge line pressures. A duality of pressure switches integrally connected within the discharge line allows the system to discharge the fluid or gas within a prescribed pressure range. By maintaining a constant descending pressure gradient through the conduit system and a constant effective orifice area through the flow regulating device, a constant discharge rate may be maintained on an ongoing basis.

REFERENCES:
patent: 1931771 (1933-10-01), Pinkerton
patent: 1931791 (1933-10-01), Dueringer
patent: 2245210 (1941-06-01), McElwaine
patent: 2565560 (1951-08-01), Jacobsson
patent: 2908158 (1959-10-01), Jacobsson
patent: 3194254 (1965-07-01), Zmek
patent: 3963043 (1976-06-01), Cota

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