Refrigeration cycle control system

Details Refrigeration cycle control system Refrigeration cycle control system

1998-11-24

2000-06-13

Wayner, William

Refrigeration

Automatic control

Refrigeration producer

62211, 622284, F25B 4104, F25B 100

Patent

active

060734590

ABSTRACT:
In order to suppress the deterioration of the efficiency of the refrigeration cycle when the theoretical supercooling degree is different from the actual supercooling degree due to an error of a sensor, upon a decision that an expansion valve opening degree remains unchanged after the lapse of a predetermined time following the starting of an air-conditioning system, a target supercooling degree is corrected and the valve opening degree is reduced from an upper limit by a predetermined value to an intermediate valve opening degree. As a result, the actual supercooling degree can leave the state of zero dryness, and can approach a target supercooling degree.

REFERENCES:
patent: 5115644 (1992-05-01), Alsenz
patent: 5701753 (1997-12-01), Iritani

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