LOW COMPRESSION LOAD TYPE COOLING APPARATUS

摘要

PURPOSE: A low compression load type cooling apparatus is provided to reduce compression load by reducing the temperature of refrigerant introduced into the compressor. CONSTITUTION: A cooling apparatus(100) comprises an expander(120), an indoor unit(140) for receiving refrigerant from the expander and evaporating the received refrigerant; a compressor(150) for receiving refrigerant from the indoor unit and compressing the received refrigerant; and an outdoor unit(160) for receiving refrigerant from the compressor and condensing the received refrigerant. The refrigerant discharged from the outdoor unit is introduced into the expander through a heat exchange evaporating circuit(110), and part of the refrigerant introduced into the expander is converted into a low temperature low pressure refrigerant in an auxiliary expander(130). Thus-converted refrigerant is introduced into the compressor through the heat exchange evaporating circuit.