Wide island air defrost case utilizing air transfer circulating

Details Wide island air defrost case utilizing air transfer circulating Wide island air defrost case utilizing air transfer circulating

1983-02-02

1984-04-03

Wayner, William E.

Refrigeration

Processes

Defrosting or frost inhibiting

62256, A47F 304

Patent

active

044399936

ABSTRACT:
A refrigerated display case of the wide island type having side-by-side, upwardly opening product display wells, uses its primary air circulating fans and a defrost fan to draw ambient air into the inlet and outlet of the air conduit of one product well, circulate it through the conduit of that well, transfer it to the air conduit of the second well, circulate it through the second conduit, and discharge it to atmosphere through the inlet and outlet of the second conduit. The case incorporates a solid center partition having an opening near the bottom of the case in which the defrost fan is mounted to transfer the air from one product well to the other. A splitter panel and sill at the upper end of the partition prevent the intake air from becoming mixed with the exhausted air. During a defrost cycle the air can be drawn into the first well and exhausted from the second well for the full duration of the cycle. Or, part way through the cycle a complete reversal of air flow can be effected so as to now draw the air into the second well and exhaust it from the first well for the remainder of the defrost cycle.

REFERENCES:
patent: 4182130 (1980-01-01), Ljung
patent: 4267706 (1981-05-01), Abraham
patent: 4285204 (1981-08-01), Vana
patent: 4304098 (1981-12-01), Rydahl
patent: 4314457 (1982-02-01), Ibrahim
patent: 4337626 (1982-07-01), Ibrahim

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