Fluid delivery pressure control system

Details Fluid delivery pressure control system Fluid delivery pressure control system

1990-10-31

1991-11-12

Cohan, Alan

Fluid handling

Processes

Involving pressure control

137468, 137489, G05D 1606

Patent

active

050639560

ABSTRACT:
System and method for controlling process fluid flow to maintain a set delivery pressure at varying demand, including a fluid-loaded, self-operated main regulator and a method for providing the loading pressure therefor. The system also includes a flow restrictor for metering the loading fluid flow, a back-pressure regulator for controlling the loading fluid pressure, and a temperature-actuated regulator for venting loading fluid when the process fluid temperature varies from a selected range.

REFERENCES:
patent: 2047101 (1936-07-01), Grove
patent: 2902047 (1959-09-01), Tavener
patent: 3095897 (1963-07-01), Pennstrom
patent: 3362177 (1968-01-01), Case
patent: 3977423 (1976-08-01), Clayton
patent: 3982559 (1976-09-01), Ochs
patent: 4080800 (1978-03-01), Spaulding
patent: 4619115 (1986-10-01), Weber
patent: 4966183 (1990-10-01), Williamson
"Pressure Regulation in Distribution", Gas Engineers Handbook, R. J. Ott, J. M. Pickford, and F. E. Vandaveer, 1965, pp. 9/47-9/61.
"Internal-Pistol Piston-Operated Regulating Valves", The Process Instruments and Controls Handbook, J. T. Muller, 1957, pp. 10-58 through 10-68.
"Simplified Instrumentation", Instruments, J. S. Leslie, vol. 22, Aug. 1949, pp. 670-674.

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