Adaptive defrost control and method

Details Adaptive defrost control and method Adaptive defrost control and method

1979-06-20

1987-07-21

Tanner, Harry

Refrigeration

Automatic control

Preventing, removing or handling atmospheric condensate

62234, F25D 2106

Patent

active

046809406

ABSTRACT:
Apparatus and a method for determining the appropriate time-to-initiate a defrost cycle in conjunction with a refrigeration circuit having a heat exchanger upon which frost may accumulate. The elapsed time period from a previous defrost cycle is used to adjust the time between defrost cycles such that the time period between defrost cycles is varied as a funtion of the length of the previous defrost cycle.

REFERENCES:
patent: 3657658 (1972-04-01), Kubo
patent: 3890798 (1975-06-01), Fujimoto et al.
patent: 4156350 (1979-05-01), Elliott et al.
patent: 4178988 (1979-12-01), Cann et al.
patent: 4246956 (1981-01-01), Drucker
patent: 4251988 (1981-02-01), Allard et al.

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