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HIGH-EFFICIENCY HEAT PUMPS

  • US 20100326099A1
  • Filed: 10/28/2009
  • Published: 12/30/2010
  • Est. Priority Date: 10/28/2008
  • Status: Abandoned Application
First Claim
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1. A high-efficiency heat pump, comprising:

  • (a) a frame;

    (b) a first circuit supported by the frame and configured to circulate a first refrigerant;

    (c) a first compressor supported by the frame and connected to the first circuit, the first compressor being configured to (i) receive the first refrigerant from the first circuit, (ii) increase pressure of the first refrigerant, and (iii) provide the higher-pressure first refrigerant back to the first circuit;

    (d) a condenser heat exchanger supported by the frame and connected to the first circuit, the condenser heat exchanger being configured to (i) receive the higher-pressure first refrigerant from the first circuit, (ii) transfer energy from the higher-pressure first refrigerant to a first HVAC fluid passing through the condenser heat exchanger, and (iii) provide the first refrigerant back to the first circuit;

    (e) a first electronic expansion valve supported by the frame and connected to the first circuit, the first electronic expansion valve being configured to (i) receive the first refrigerant from the first circuit, (ii) decrease pressure of the first refrigerant, and (iii) provide the lower-pressure first refrigerant back to the first circuit;

    (f) an evaporator heat exchanger supported by the frame and connected to the first circuit, the evaporator heat exchanger being configured to (i) receive the lower-pressure first refrigerant from the first circuit, (ii) transfer energy from a second HVAC fluid passing through the evaporator heat exchanger to the lower-pressure first refrigerant, and (iii) provide the first refrigerant back to the first circuit; and

    (g) a controller in electronic communication with the first electronic expansion valve, the controller being configured to control operation of the first electronic expansion valve.

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