Cooling apparatus having a spirally wound conductive pipe

Details Cooling apparatus having a spirally wound conductive pipe Cooling apparatus having a spirally wound conductive pipe

1997-02-12

1998-09-15

Doerrler, William

Refrigeration

Gas controller or director

Cooled gas directed relative to cooled enclosure

62515, 165125, 165151, F25D 1704, F28D 104

Patent

active

058063340

ABSTRACT:
A cooling apparatus for use in a cooling system. The cooling apparatus comprises an evaporator having a conductive pipe which is wound spirally along a cool air duct, and a blower for providing a cooling compartment with cool air generated from the evaporator by blowing toward the evaporator. The diameter of the wound portion of the conductive pipe increases gradually along the circulating direction of the cool air, so the evaporator substantially has a cone-shape. In the cone-shaped space, a defrosting heater is disposed coaxially with the conductive pipe. Since the heat exchange is performed uniformly on the entire area of the evaporator by the spirally wound conductive pipe, the cooling apparatus has high efficiency of cooling, and since frost is generated on the evaporator without maldistribution thereby, the period for defrosting operation becomes longer so that the cooling efficiency is more improved.

REFERENCES:
patent: 1893341 (1933-01-01), Spreen
patent: 2001832 (1935-05-01), Bandurski
patent: 2044832 (1936-06-01), Child
patent: 2495351 (1950-01-01), Smith
patent: 3783635 (1974-01-01), Perez
patent: 4756358 (1988-07-01), O'Neal
patent: 5077825 (1991-12-01), Monrose
patent: 5088550 (1992-02-01), Tippman et al.
patent: 5255535 (1993-10-01), Kennedy

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