Environmental control system

Details Environmental control system Environmental control system

1992-07-08

1993-10-26

Tanner, Harry B.

Refrigeration

Automatic control

Of external fluid or means

62181, 62184, 62186, 62227, 622284, F25B 3900

Patent

active

052555291

ABSTRACT:
An environmental control system disclosed includes a refrigeration loop including a variable speed compressor having an inlet and an outlet, a condenser having an inlet connected with the compressor outlet and an outlet, and an evaporator having an inlet connected with the condenser outlet and an outlet connected with the compressor inlet. The system also includes a variable speed evaporator fan and evaporator fan control for controlling the speed of the evaporator fan and a monitor for monitoring the superheat condition of the refrigerant at the compressor inlet wherein the evaporator fan control controls the speed of the evaporator fan as a function on the value of the superheat condition. A variable speed condenser fan is controlled by a condenser fan speed control that functions in part on the value of the superheat condition.

REFERENCES:
patent: 3390538 (1968-10-01), Miller
patent: 3668883 (1972-06-01), Ruff et al.
patent: 3786650 (1974-01-01), Newton
patent: 3803863 (1974-04-01), Jednacz et al.
patent: 3853174 (1974-12-01), Kramer
patent: 4257238 (1981-03-01), Kountz et al.
patent: 4495779 (1985-01-01), Tanaka et al.
patent: 4660387 (1987-04-01), Usami
patent: 4856286 (1989-08-01), Sulfstede et al.

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