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    • 1. 发明公开
    • Multistage rotary compressor and refrigeration circuit system
    • 多级旋转式压缩机和制冷回路系统
    • EP2241758A3
    • 2012-08-29
    • EP10167960.3
    • 2003-03-13
    • Sanyo Electric Co., Ltd.
    • Matsumoto, KenzoTsuda, NoriyukiYamasaki, HaruyukiSato, KazuyaTadano, Masaya
    • F04C23/00F04C28/26F04C28/02F25B1/10
    • F25B1/10F04C18/356F04C23/001F04C28/02F04C28/26F04C2210/261F25B9/008F25B47/022F25B2309/061F25B2341/066F25B2400/0401F25B2500/29F25B2600/2501
    • A refrigeration circuit system (153) comprising a multistage rotary compressor (10) formed of an electric element (14) in a hermetic shell case (12), and first and second rotary compression elements (32), (34) being driven by said electric element (14), wherein a refrigerant which is compressed by said first rotary compression element (32) is compressed by said second rotary compression element (34), a gas cooler (154) into which the refrigerant discharged from said second rotary compression element (34) flows, a pressure reducing device connected to an outlet side of said gas cooler (154), and an evaporator (157) connected to an outlet side of said pressure reducing device, wherein the refrigerant discharged from said evaporator (157) is compressed by said first rotary compression element (32), said refrigeration circuit system further comprising: a bypath circuit (158) for supplying the refrigerant discharged from said first rotary compression element (32) to said evaporator (157); a flow regulating valve (159) capable of controlling flow rate of the refrigerant flowing in said bypath circuit (158); and control means (160) for controlling said flow regulating valve (159) and said pressure reducing device ; wherein said control means (160) normally closes said flow regulating valve (159) and increases flow rate of the refrigerant flowing in said bypath circuit (158) by said flow regulating valve (159) in response to the increase of pressure at the refrigerant discharge side of said first rotary compression element (32).
    • 一种制冷回路系统(153),包括由密封壳体(12)中的电元件(14)形成的多级旋转压缩机(10),以及由所述所述第一和第二旋转压缩机构(32)驱动的第一和第二旋转压缩元件 其特征在于,由所述第一旋转压缩元件(32)压缩的制冷剂被所述第二旋转压缩元件(34)压缩的气电元件(14),气体冷却器(154),将从所述第二旋转压缩元件 (34)流动,连接到所述气体冷却器(154)的出口侧的减压装置和连接到所述减压装置的出口侧的蒸发器(157),其中从所述蒸发器(157)排放的制冷剂是 被所述第一旋转压缩部件32压缩的冷冻循环系统,所述冷冻循环系统还包括:用于将从所述第一旋转压缩部件32排出的制冷剂供给到所述蒸发器157的旁路回路158。 流量调节阀(159),其能够控制在所述旁路回路(158)中流动的制冷剂的流量; 和控制装置(160),用于控制所述流量调节阀(159)和所述减压装置; 其中,所述控制装置(160)通常响应于所述制冷剂排放处的压力的增加而关闭所述流量调节阀(159)并且增加由所述流量调节阀(159)在所述旁路回路(158)中流动的制冷剂的流率 所述第一旋转压缩元件(32)的一侧。
    • 4. 发明公开
    • Multistage rotary compressor and refrigeration circuit system
    • Kühlvorrichtungmit einem mehrstufigen Rotationsverdichter
    • EP2241758A2
    • 2010-10-20
    • EP10167960.3
    • 2003-03-13
    • Sanyo Electric Co., Ltd.
    • Matsumoto, KenzoTsuda, NoriyukiYamasaki, HaruyukiSato, KazuyaTadano, Masaya
    • F04C23/00F04C18/356F04C29/06F04C28/26F04C28/02
    • F25B1/10F04C18/356F04C23/001F04C28/02F04C28/26F04C2210/261F25B9/008F25B47/022F25B2309/061F25B2341/066F25B2400/0401F25B2500/29F25B2600/2501
    • A refrigeration circuit system (153) comprising a multistage rotary compressor (10) formed of an electric element (14) in a hermetic shell case (12), and first and second rotary compression elements (32), (34) being driven by said electric element (14), wherein a refrigerant which is compressed by said first rotary compression element (32) is compressed by said second rotary compression element (34), a gas cooler (154) into which the refrigerant discharged from said second rotary compression element (34) flows, a pressure reducing device connected to an outlet side of said gas cooler (154), and an evaporator (157) connected to an outlet side of said pressure reducing device, wherein the refrigerant discharged from said evaporator (157) is compressed by said first rotary compression element (32), said refrigeration circuit system further comprising: a bypath circuit (158) for supplying the refrigerant discharged from said first rotary compression element (32) to said evaporator (157); a flow regulating valve (159) capable of controlling flow rate of the refrigerant flowing in said bypath circuit (158); and control means (160) for controlling said flow regulating valve (159) and said pressure reducing device ; wherein said control means (160) normally closes said flow regulating valve (159) and increases flow rate of the refrigerant flowing in said bypath circuit (158) by said flow regulating valve (159) in response to the increase of pressure at the refrigerant discharge side of said first rotary compression element (32).
    • 一种制冷回路系统(153),包括由密封壳体(12)中的电气元件(14)形成的多级旋转压缩机(10),以及由所述第一和第二旋转压缩元件(32)驱动的第一和第二旋转压缩元件(32) 电动元件(14),其中由所述第一旋转压缩元件(32)压缩的制冷剂被所述第二旋转压缩元件(34)压缩,气体冷却器(154),从所述第二旋转压缩元件 (34)流出,连接到所述气体冷却器(154)的出口侧的减压装置和连接到所述减压装置的出口侧的蒸发器(157),其中从所述蒸发器(157)排出的制冷剂为 由所述第一旋转压缩元件(32)压缩,所述制冷回路系统还包括:用于将从所述第一旋转压缩元件(32)排出的制冷剂供给到所述蒸发器(157)的通路回路(158) 能够控制在所述通路回路(158)中流动的制冷剂的流量的流量调节阀(159)。 以及用于控制所述流量调节阀(159)和所述减压装置的控制装置(160) 其特征在于,所述控制装置(160)响应于制冷剂排放压力的增加而通过所述流量调节阀(159)通常关闭所述流量调节阀(159)并增加在所述通路回路(158)中流动的制冷剂的流量 所述第一旋转压缩元件(32)的侧面。