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Refrigerant leakage sensing system and method

  • US 20050056031A1
  • Filed: 09/13/2004
  • Published: 03/17/2005
  • Est. Priority Date: 09/17/2003
  • Status: Abandoned Application
First Claim
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1. A refrigerant leakage sensing system for use in a cooling cycle including a compressor, a condenser and an evaporator, comprising:

  • a first temperature sensor for sensing a temperature of the refrigerant flowing into the evaporator;

    a second temperature sensor for sensing a temperature of the refrigerant discharging from the evaporator;

    a control unit for calculating a difference between the temperatures sensed by the first and second temperature sensors and determining whether the refrigerant leakage has occurred or not; and

    a display unit for displaying the refrigerant leakage when the refrigerant leakage occurs under control of the control unit.

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