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Refrigerant cycle with operating range extension

  • US 6,925,823 B2
  • Filed: 10/28/2003
  • Issued: 08/09/2005
  • Est. Priority Date: 10/28/2003
  • Status: Expired due to Fees
First Claim
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1. A compressor comprising:

  • a compressor pump unit, said compressor pump unit driven by a motor;

    a protection device associated with said motor, said protection device operable to stop operation of said motor should a first system condition reach a predetermined level; and

    a control for said compressor, said control monitoring a second system condition, and identifying when said second system condition indicates said first system condition is approaching said predetermined level, said control being operable to reduce a load on said compressor as said first system condition approaches said predetermined level.

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