Refrigerating apparatus
    3.
    发明授权
    Refrigerating apparatus 有权
    制冷装置

    公开(公告)号:US06474085B2

    公开(公告)日:2002-11-05

    申请号:US09985746

    申请日:2001-11-06

    IPC分类号: F25B700

    摘要: A refrigerating apparatus comprising a refrigerating cycle having compressors, a condenser, a liquid receiver, expansion valves and evaporators; and a suction pressure sensor for detecting a pressure on suction sides of the compressors; wherein when the suction pressure has at least a capacity-up pressure value, it causes an increase in the number of compressors being operated or the operating frequency; and wherein when a time period, in which the suction pressure remains in at least the capacity-up pressure value, and a time period, in which the suction pressure remains in at most the capacity-down pressure value, are compared with each other and calculated, and the latter time period is longer than the former time period, at least one of the capacity-up pressure value and the capacity-down pressure value is made larger than said each pressure value.

    摘要翻译: 一种制冷装置,包括具有压缩机的制冷循环,冷凝器,液体接收器,膨胀阀和蒸发器; 以及用于检测所述压缩机的吸入侧的压力的吸入压力传感器; 其中,当所述吸入压力至少具有容量上限压力值时,使得所操作的压缩机的数量或操作频率增加; 并且其中当吸入压力保持在至少容量上限压力值的时间段以及吸入压力保持在最大容量降低压力值的时间段彼此进行比较时, 并且后一时间段比前一个时间段长,容量上限压力值和容量下降压力值中的至少一个使得大于所述每个压力值。