Refrigeration – Automatic control – Refrigeration producer
Patent
1988-06-29
1989-11-07
Tanner, Harry B.
Refrigeration
Automatic control
Refrigeration producer
62157, 622285, 62244, F25B 100
Patent
active
048783587
ABSTRACT:
A demisting control system of an air conditioner for automotive vehicles, which comprises an evaporator, and a variable capacity compressor capable of being controlled in capacity from the outside. An actual cooling degree of the evaporator is detected. At least two desired cooling degrees of the evaporator are set. The detected actual cooling degree and each of the set at least two desired cooling degrees are compared with each other. On the basis of the comparison results, a value of the capacity to which the compressor is to be controlled is determined. The at least two desired cooling degrees are selected one by one in predetermined sequence and each selected desired cooling degree is compared with the actual cooling degree as above for a predetermined time period exclusively provided therefor. The compressor is driven so that its capacity is brought to the value of capacity determined as above.
REFERENCES:
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patent: 4448034 (1984-05-01), Shimada et al.
patent: 4685508 (1987-08-01), Ida
patent: 4706467 (1987-11-01), Thorsen et al.
patent: 4709751 (1987-12-01), Ichimara et al.
patent: 4783970 (1988-11-01), Takahashi
Diesel Kiki Co. Ltd.
McGuire Charles S.
Tanner Harry B.
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