Refrigeration system and method

Details Refrigeration system and method Refrigeration system and method

1995-06-05

1996-09-17

Tanner, Harry B.

Refrigeration

Automatic control

Of external fluid or means

62408, 62180, F25B 4902

Patent

active

055557368

ABSTRACT:
A refrigeration system includes a temperature sensor in a freezing compartment, a temperature sensor in a cooling compartment, an adjustable damper controlling the flow of cooled air from the freezing compartment to the cooling compartment and variable speed drives for fan motors and a compressor motor. The desired set point temperatures for the compartment are compared with the actual sensed temperatures through a controller that controls the speed of the compressor and fan motors, to achieve the desired temperature in a fast and efficient manner. When excessive ice is detected on freezing compartment coils, the controller reverses the heat transfer cycle of the refrigerant to defrost the freezing compartment coils.

REFERENCES:
patent: 3309888 (1967-03-01), Jacobs
patent: 4009590 (1977-03-01), Webb et al.
patent: 4920758 (1990-05-01), Janke et al.
patent: 5201888 (1993-04-01), Beach, Jr. et al.
patent: 5255530 (1993-10-01), Jake
Ladders of Learning Training Program, Central Environmental Systems, 1988.

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