US 6,434,960 · Granted 2002-08-20
Variable speed drive chiller system
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.
Patent details
- Publication number
- US 6,434,960
- Filing date
- 2001-07-02
- Grant date
- 2002-08-20
- Assignee
- Carrier Corporation
- Inventor(s)
- ROUSSEAU WILLIAM H.
- CPC class
- F25B1/047
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