Refrigerant flow control device

Details Refrigerant flow control device Refrigerant flow control device

1986-01-23

1986-10-21

Wayner, William E.

Refrigeration

Automatic control

Refrigeration producer

62225, F25B 4100

Patent

active

046178040

ABSTRACT:
In a refrigeration cycle in which the opening of the expansion valve is controlled by the super-heat degree of the refrigerant periodically detected at the outlet of the evaporator, a negative control signal is produced to rapidly change the opening of the expansion valve when the detected super-heat degree has reached zero. As a result, occurrence of the liquid back is prevented.

REFERENCES:
patent: 4499739 (1985-02-01), Matsuoka et al.
patent: 4505125 (1985-03-01), Baglione
patent: 4523435 (1985-06-01), Lord
patent: 4571951 (1986-02-01), Szymaszek

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