Patent ID: 6250090
Filing Date: 2001-06-26
Classification: F25B,Y10S

Abstract:
A refrigeration system, comprising:at least one compressor;at least one condenser;at least one evaporator;a refrigerant tube in fluid communication with each said compressor, said condenser, and said evaporator, a refrigerant flowing through said refrigerant tube;at least one first refrigerant expansion device in fluid communication with said refrigerant tube such that the refrigerant flows therethrough, each said first refrigerant expansion device located in said refrigerant tube between each said condenser and each said evaporator, and each said first refrigerant expansion device selectively expanding refrigerant passing therethrough prior to the refrigerant passing through said evaporator;at least one second refrigerant expansion device in fluid communication with said refrigerant tube such that refrigerant flows therethrough, each said second refrigerant expansion device located in said refrigerant tube between each said evaporator and each said compressor, and each said second refrigerant expansion device selectively expanding refrigerant passing therethrough prior to the refrigerant passing through each said compressor; anda defrosting control connected to each said first refrigerant expansion device and each said second refrigerant expansion device, said defrosting control selectively defrosting each said evaporator.