PURPOSE: To prevent the delivery pressure of a compressor at a high speed from becoming too high.
CONSTITUTION: When a compressor 11 is rotated at a high speed, the delivery amount of refrigerant is increased, and the amount of refrigerant flowing through first and second refrigerant paths 12 and 13 is increased. Because the velocity of refrigerant at a restriction 19 becomes high, a pressure loss at the restriction 19 is increased, and the flow of refrigerant at a first condenser 14 becomes larger than that at a second condenser 15. Also, because the first condenser 14 is located on the upstream side of cooling air and has high cooling capacity, a condensing temperature as well as condensing pressure can be prevented from rising though the degree of super cooling is lowered, and the delivery pressure of the compressor 11 is not increased too high.
ITO MASAHIKO
NAKABO TADASHI
ISHII YUKIHIRO
TAKAHASHI HIDEMASA
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