Refrigerator and method for circulating cold air therein

Details Refrigerator and method for circulating cold air therein Refrigerator and method for circulating cold air therein

1996-04-05

1998-08-04

Doerrler, William

Refrigeration

Cooled enclosure

Plural cooled compartments

62408, 62276, F25D 1102, F25D 1704, F25D 2106

Patent

active

057877254

ABSTRACT:
A refrigerator and a method for circulating cold air in the refrigerator are provided for blocking the backward stream of cold air within a freezing chamber and a main cold air duct into a cold chamber regardless of occurrence of a pressure difference caused by different supply amount of the cold air to the freezing chamber and cold chamber, thereby preventing freezing of food within the cold chamber. For this, an evaporator produces the cold air supplied to the freezing chamber, and a fan apparatus draws in the cold air within the freezing chamber. Ducts allowing for the flow of the cold air includes the main cold air duct which leads the cold air admitted from the fan apparatus to return to the freezing chamber via the evaporator, a cooling duct branched from the main cold air duct to supply the cold air to the cold chamber and a cold air return duct for leading the cold air within the cold chamber to return to the evaporator.

REFERENCES:
patent: 3015215 (1962-01-01), Tobey
patent: 3050956 (1962-08-01), Mann et al.
patent: 3093981 (1963-06-01), O'Grady
patent: 3359750 (1967-12-01), Hanson
patent: 5214936 (1993-06-01), Lim et al.
patent: 5255536 (1993-10-01), Jung et al.
patent: 5433086 (1995-07-01), Cho et al.
patent: 5501084 (1996-03-01), Chang et al.

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