Variable speed drive chiller system

Details Variable speed drive chiller system Variable speed drive chiller system

2007-05-01

2007-05-01

Doerrler, William C. (Department: 3744)

Refrigeration

Automatic control

Refrigeration producer

C062S236000, C062S498000, C062S259200

Reissue Patent

active

10682850

ABSTRACT:
The compressor in a refrigeration system is controlled solely by a variable speed drive which controls the motor of the compressor by virtue of the varying of the frequency of the electricity provided to the motor. To minimize the initial cost and to minimize operating costs, the variable speed drive is cooled by refrigerant from the refrigeration system which permits the use of a smaller drive, and the variable speed drive is operated at, or approaching, a unity power factor.

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