Expansion valve integrated with electromagnetic valve and refrigeration cycle employing the same

A refrigeration cycle comprising:

• a compressor for compressing and discharging refrigerant;
• a condenser for cooling and condensing the refrigerant discharged from said compressor;
• a first expansion valve for decompressing and expanding the liquid-phase refrigerant condensed in said condenser;
• a second expansion valve disposed in parallel with said first expansion valve, for decompressing and expanding the liquid-phase refrigerant condensed in said condenser;
• a first evaporator for evaporating the refrigerant decompressed and expanded in said first expansion valve;
• a second evaporator disposed in parallel with said first evaporator, for evaporating the refrigerant decompressed and expanded in said first expansion valve;
• wherein,
• at least one of said first expansion valve and said second expansion valve is constructed as an expansion valve integrated with an electromagnetic valve, said electromagnetic valve opening and closing a refrigeration path of the refrigeration cycle,
• said expansion valve integrated with said electromagnetic valve comprising:
• an expansion valve body for forming an outer shape of said expansion valve, said expansion body having an inlet refrigerant path for introducing high-pressure side refrigerant of the refrigeration cycle, a restriction path for decompressing and expanding the refrigerant introduced from said inlet refrigerant path and an outlet refrigerant path for supplying the refrigerant decompressed and expanded in said restriction path;
• a first valve element for adjusting an opening degree of said restriction path;
• and
• a valve element operating mechanism for moving said first valve element;
• said electromagnetic valve is integrally assembled in said expansion valve body and includes a second valve element disposed to open and close said outlet refrigerant path, and
• when said second valve element is closed, said valve element operating mechanism operates based on a refrigerant pressure between said second valve element and said restriction path such that said first valve element is closed.