Gas defrost system

Details Gas defrost system Gas defrost system

1993-02-26

1994-06-28

Tanner, Harry B.

Refrigeration

Automatic control

Refrigeration producer

62234, 62278, F25D 2102

Patent

active

053236211

ABSTRACT:
A gas defrost apparatus for melting frost and ice from evaporators in commercial refrigeration systems using a pressure differential hold back valve to direct superheated refrigerant in a reversed direction into the evaporators and a gas return conduit for reintroducing the refrigerant into the main refrigerant distribution system between the compressors and condensers. Reintroducing the refrigerant on the high side of the condensers between the compressors and condensers prevents inefficiencies in the refrigeration system.

REFERENCES:
patent: 2978877 (1961-04-01), Long
patent: 3464226 (1969-09-01), Kramer
patent: 4151723 (1979-05-01), Gardner
patent: 4318277 (1982-03-01), Cann et al.
patent: 4437317 (1984-03-01), Ibrahim

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