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    • 31. 发明授权
    • Gas compressor with variably biased vanes
    • 具有可变偏置叶片的气体压缩机
    • US06641373B2
    • 2003-11-04
    • US10082741
    • 2002-02-22
    • Keiichi Morita
    • Keiichi Morita
    • F04B4900
    • F04C28/28F01C21/0863F04C18/3446F04C28/06
    • To provide a gas compressor in which saving of power as well as improved compression performance and durability are attained by enabling reduction of vane back pressure without degrading the projectability of the vanes upon starting operation of the compressor. Scoop grooves and a high pressure supply hole are arranged so as to be spaced apart from each other, and the interval therebetween is set to an interval sufficient to ensure that a vane groove is communicated with neither the scoop grooves nor the high pressure supply hole while the vane groove moves apart from the scoop grooves toward the high pressure supply hole. Further, if there has occurred a reversed pressure relationship between a suction chamber (low-pressure chamber) and a discharge chamber (high-pressure chamber), a pressure control valve is actuated upon starting operation of the compressor to interconnect the scoop groove with the suction chamber side.
    • 提供一种气体压缩机,其通过在压缩机启动操作时不降低叶片的可投影性,能够降低叶片背压而实现功率节省以及改进的压缩性能和耐久性。 勺形槽和高压供应孔被布置成彼此间隔开,并且它们之间的间隔被设定为足以确保叶片槽与铲槽和高压供应孔都不连通的间隔,同时 叶片槽从铲斗向高压供应孔移动。 此外,如果在吸入室(低压室)和排出室(高压室)之间发生反向压力关系,则在压缩机启动操作时致动压力控制阀,以将铲斗槽与 抽吸室侧。
    • 32. 发明授权
    • Air conditioning apparatus capable of performing a dehumidifying
operation
    • 能够进行除湿运转的空调装置
    • US5345776A
    • 1994-09-13
    • US135497
    • 1993-10-13
    • Megumi KomazakiHideaki SuzukiHideaki MotohashiKeiichi Morita
    • Megumi KomazakiHideaki SuzukiHideaki MotohashiKeiichi Morita
    • F24F11/02F24F3/14F24F11/00
    • F24F11/006F24F11/0008F24F3/14F24F11/0012F24F11/0015F25B2600/021Y02B30/741Y10S706/90
    • An air conditioner having a compressor, an outdoor fan, and two indoor heat exchangers which are connected by an electric expansion valve. During a dehumidifying operation, the opening of the electric expansion valve is decreased, thereby decompressing the refrigerant flowing from the first indoor heat exchange into the second indoor exchanger. The first and second heat exchangers thereby function as a reheater and an evaporator, respectively. The second indoor heat exchanger cools and dehumidifies the indoor air, and the first indoor heat exchanger heats the indoor air again. The indoor air, first cooled, then dehumidified, and finally re-heated, is supplied into the room. During the dehumidifying operation, a deviation (T) of the indoor temperature (Ta) from a preset indoor temperature (Ts), and a change (.DELTA.T) in the deviation (T) are detected, and the deviation (H) of the indoor humidity (Ha) from a preset indoor humidity (Hs), and a change (.DELTA.H) are also detected. Fuzzy inference is performed based on the deviation (T), the change (.DELTA.T), the deviation (H) and the change (.DELTA.H), thereby calculating an adjustment value (.DELTA.F) and an adjustment value (.DELTA.N). The value (.DELTA.F) adjusts the drive frequency of the compressor, and the value (.DELTA.N) adjusts the rotational speed (N) of the outdoor fan.
    • 具有通过电动膨胀阀连接的压缩机,室外风扇和两个室内热交换器的空调机。 在除湿操作期间,电动膨胀阀的开度减小,从而使从第一室内热交换器流入的制冷剂减压到第二室内交换器。 因此,第一和第二热交换器分别用作再热器和蒸发器。 第二室内热交换器对室内空气进行冷却和除湿,第一室内热交换器再次加热室内空气。 室内空气首先冷却,然后除湿,最后再加热,送入房间。 在除湿操作期间,检测室内温度(Ta)与预设室内温度(Ts)的偏差(T)和偏差(T)中的变化(DELTA T),并且检测出 从室内湿度(Hs)和室内湿度(Ha)也可以检测出变化(DELTA H)。 基于偏差(T),变化(DELTA T),偏差(H)和变化(DELTA H)进行模糊推理,由此计算调整值(DELTA F)和调整值(DELTA N)。 值(DELTA F)调节压缩机的驱动频率,并且值(DELTA N)调节室外风扇的转速(N)。