Defrost system for a refrigeration device

Details Defrost system for a refrigeration device Defrost system for a refrigeration device

2007-10-02

2007-10-02

Tapolcai, William E. (Department: 3744)

Refrigeration

Processes

Defrosting or frost inhibiting

C062S155000, C062S225000, C062S234000

Reexamination Certificate

active

11116559

ABSTRACT:
A defrost system for a temperature controlled storage unit includes an enclosure providing a space for storage of products. A refrigeration system has a supply line and a return line coupled to a cooling element to circulate a refrigerant through the cooling element to provide cooling to the space. A control module initiates a plurality of defrost modes on a predetermined frequency and for a predetermined duration by reducing a flow rate of the refrigerant through the cooling element so that a superheat temperature of the refrigerant in the cooling coil is increased to a predetermined range.

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PCT International Search Report, based on International Application No. PCT/US2006/014177, date of mailing of the International Search Report Sep. 15, 2006 (2 pp.).

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