Defrosting system in a compression refrigerator

Details Defrosting system in a compression refrigerator Defrosting system in a compression refrigerator

1976-02-03

1977-05-17

King, Lloyd L.

Refrigeration

Automatic control

Refrigeration producer

62277, F25B 4100, F25B 4700

Patent

active

040233774

ABSTRACT:
Disclosed is an improved defrosting system in a compression refrigerator. According to this invention there is provided a defrosting system in which the liquid-phase refrigerant is extracted from upstream of the expansion valve to a defrosting tank which is maintained at an elevated temperature high enough to cause the refrigerant to change from the liquid to vapor phase, and the now vapor-phase refrigerant is supplied to the evaporator where the refrigerant lose its heat in changing from the vapor to liquid phase, and the now liquid-phase refrigerant returns to the defrosting tank. The refrigerant circulates until the evaporator has been completely defrosted.

REFERENCES:
patent: 1980688 (1934-11-01), Lewis
patent: 2440146 (1948-04-01), Kramer
patent: 2526032 (1950-10-01), La Porte
patent: 2693682 (1954-11-01), Winger et al.
patent: 3267689 (1966-08-01), Liebert
patent: 3451226 (1969-06-01), Shriver
patent: 3838582 (1974-10-01), Redfern et al.

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