Refrigerating apparatus using non-azeotropic mixed refrigerant

Abstract

A refrigerating apparatus using a non-azeotropic mixed refrigerant may include a compressor operable in a continuous operation mode and configured to compress the non-azeotropic mixed refrigerant, a condenser configured to condense the refrigerant compressed by the compressor, an expander configured to expand the refrigerant condensed by the condenser, and an evaporator configured to evaporate the refrigerant expanded by the expander. A pressure difference (ΔP) of the non-azeotropic mixed refrigerant has a value included in a range of 340 kPa<ΔP<624.7 kPa. Therefore, reliability of components, such as a piston, in the refrigerating apparatus using the non-azeotropic mixed refrigerant may be further improved.

What is claimed: 
     
         1 . A refrigerating apparatus using a non-azeotropic mixed refrigerant, the refrigerating apparatus comprising:
 a compressor configured to compress the non-azeotropic mixed refrigerant;   a condenser configured to condense the refrigerant compressed by the compressor;   an expander configured to expand the refrigerant condensed by the condenser; and   an evaporator configured to evaporate the refrigerant expanded by the expander and provide cold air to an inner space of the refrigerating apparatus, wherein the compressor is selectively operated in an intermittent operation mode and a continuous operation mode, and wherein in the continuous operation mode, the compressor is controlled to operate continuously even when a temperature of the inner space of the refrigerating apparatus is within a target temperature range.