Method and arrangement for maintaining a frost-free freezer...

Details Method and arrangement for maintaining a frost-free freezer... Method and arrangement for maintaining a frost-free freezer...

F - Mech Eng,Light,Heat,Weapons

25

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F25D 17/06 (2006.01) F25D 17/04 (2006.01) F25D 21/04 (2006.01)

Patent

CA 1194327

ABSTRACT OF THE INVENTION A freezer having an air flow in the freezer chamber which is conducted through a first flow path having a motor- driven fan and a filter. Thereafter ambient air is conducted through the fan and filter and a second flow path for regen- eration of the filter. In the arrangement the filter is located in the first heat insulated flow path intended for freezing chamber air, and provided with a motor-driven fan. The second heat insulated flow path is intended for ambient air. Valves are provided for shifting said flow paths.

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