Refrigerator

Details Refrigerator Refrigerator

1997-12-12

1999-05-11

Doerrler, William

Refrigeration

Gas controller or director

Cooled gas directed relative to cooled enclosure

62515, 165122, 416113, 416150, F25D17/04

Patent

active

059015691

ABSTRACT:
A refrigerator having an improved fan which blows air towards a heat exchanger such as an evaporator. The refrigerator has a body having a refrigerating chamber, a freezing chamber, and a chilled air passage which communicates with the refrigerating and freezing chambers. An evaporator for generating a chilled air by heat-exchanging with an air is installed in the body. The evaporator has a spiral-shaped refrigerant pipe which is disposed in a longitudinal direction of the chilled air passage, and a plurality of heat exchange pins disposed around the spiral-shaped refrigerant pipe, for increasing a heat exchange area between the air and the spiral-shaped refrigerant pipe. A fan for blowing the air toward the evaporator and for circulating the chilled air into the refrigerating is installed in the chilled air passage. A motor is fixed to a wall of the body forming the chilled air passage. The fan can be reciprocated towards the evaporator, so a blowing force applied to the evaporator is varied by a reciprocating movement of the fan so that an air flow formed from the fan to the evaporator is changed to a turbulent air flow. The refrigerator does not make a heat boundary layer, so the heat exchange efficiency is improved.

REFERENCES:
patent: 5193359 (1993-03-01), Martin et al.
patent: 5214938 (1993-06-01), Kennedy et al.

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