| 摘要 |
A highly efficient and compact ammonia refrigerator, whose safety is further improved, is obtained. The ammonia refrigerator uses ammonia as refrigerant and has an ammonia refrigerating cycle in which a compressor, a condenser, an expansion valve, and an evaporator are connected through piping. The refrigerator comprises a casing in which the compressor and a motor for driving the compressor are accommodated and the refrigerant flows, a stator winding of the motor made of an aluminum wire, and a brine cooled by the refrigerant which is compressed in the casing and then evaporated in the evaporator.
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