Refrigerator controller

Details Refrigerator controller Refrigerator controller

1996-05-24

1998-02-10

Wayner, William E.

Refrigeration

Automatic control

Refrigeration producer

62223, 62502, F25B 4100, F25B 100

Patent

active

057156948

ABSTRACT:
A refrigerator controller employs a non-azeotropic mixture refrigerant and a compressor, a four-way valve, an outdoor hear exchanger, a fractionator, an overhead condenser provided on the top of the fractionator, a first flow control valve, a throttle, and an indoor heat exchanger which are connected in the form of a ring. The controller further employs a circuit at a lower part of the fractionator returning to the bottom of the fractionator through a second flow control valve and a reheater, and a circuit returning from the overhead condenser to the top of the fractionator, thereby controlling the openings of the first and second flow control valves by the output signal of indoor and outdoor heat exchanger temperature detectors, an indoor temperature detector, and an indoor temperature setting device through a flow controller. In this manner, a wider control range of refrigerating capability can be realized. Thus a high separation effect for mixed refrigerant components is obtained while controlling a safe and optimum refrigerant cycle.

REFERENCES:
patent: 4722195 (1988-02-01), Suzuki et al.
patent: 4840042 (1989-06-01), Ikoma et al.
patent: 4913714 (1990-04-01), Ogura et al.

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