Heat pipe defrost of evaporator drain

Refrigeration – Processes – Fluid external of refrigeration producing cycle

Patent

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Details

62275, 62285, 62 80, 16510421, F25D 1702

Patent

active

055864414

ABSTRACT:
A sealed, closed end heat pipe efficiently warms the drain for an evaporator so that condensation may flow unobstructed away from the evaporator in the refrigeration circuit. An evaporator end of the heat pipe is exposed to ambient air and a condenser end is located close to the drain inlet adjacent the evaporator. Thus, no external power source is required as fluid within the evaporator end is heated to vapor phase and circulates toward the condenser end, and cooled fluid from the condenser end returns to the evaporator end.

REFERENCES:
patent: 3451226 (1969-06-01), Shirver
patent: 5315836 (1994-05-01), Ressler

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