Apparatus for monitoring solenoid expansion valve flow rates

Refrigeration – Automatic control – Refrigeration producer

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Details

62175, 62204, 62212, 622285, 62223, 62129, F25B 4104, F25B 4900

Patent

active

050351192

ABSTRACT:
A microprocessor controlled system for use in a refrigeration system which includes a plurality of pulse controlled solenoid flow control valves suitable for use as expansion valves is disclosed. A pulse width modulated control signal is generated for cyclically opening and closing the flow through the solenoid expansion valve. The duty cycle of the pulsed control signal determines the average flow rate through the valve. The microprocessor responds to the flow rate through each of the solenoid valves to determine, on a system-wide basis, if each fixture in the system, as indicated by the flow rate through the expansion valve associated therewith, is operating properly.

REFERENCES:
patent: 2461760 (1949-02-01), Newton
patent: 3638857 (1972-02-01), Hogel et al.
patent: 4152902 (1979-05-01), Lush
patent: 4192455 (1980-03-01), Rasmussen et al.
patent: 4439997 (1984-04-01), Cantley
patent: 4459819 (1984-07-01), Hargraves
patent: 4510767 (1985-04-01), Komatsu et al.
patent: 4548047 (1985-10-01), Hayashi et al.
patent: 4644756 (1987-02-01), Sugimoto et al.
patent: 4651535 (1987-03-01), Alsenz
patent: 4653288 (1987-03-01), Sayo et al.

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