Patent ID: 6209338
Filing Date: 2001-04-03
Classification: F25B

Abstract:
A refrigeration system, comprising:a compressor that receives low pressure refrigerant and generates high pressure refrigerant;a condenser that receives the high pressure refrigerant from the compressor and condenses the refrigerant to produce a liquid refrigerant;an evaporator that receives the liquid refrigerant from the condenser and evaporates the liquid refrigerant to produce a low pressure refrigerant that is delivered to the compressor; anda reservoir system that selectively adds refrigerant to the low pressure refrigerant and removes refrigerant from the high pressure refrigerant to change the refrigerant charge to obtain a desired operational characteristic, wherein the reservoir system includes locally collected temperature and pressure data to which the temperature and pressure data from the temperature and pressure sensors is compared in determining whether to add or remove refrigerant.