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    • 2. 发明申请
    • REFRIGERATION CYCLE APPARATUS
    • 制冷循环装置
    • US20120167604A1
    • 2012-07-05
    • US13496126
    • 2011-06-23
    • Yuichi YakumaruAtsuo Okaichi
    • Yuichi YakumaruAtsuo Okaichi
    • F25B49/02
    • F25B13/00F25B1/10F25B49/02F25B2313/02741F25B2341/0662F25B2400/23F25B2500/19F25B2500/28F25B2600/2513F25B2700/2101F25B2700/2116
    • A refrigeration cycle apparatus 100 according to the present invention includes: a refrigerant circuit 160 including a compressor 101, a condenser (102 or 106), a first throttling device (103 or 105), a gas-liquid separator 104, a second throttling device (105 or 103), and an evaporator (106 or 102); an injection passage 170 through which a gas phase refrigerant separated out in the gas-liquid separator 104 is supplied to the compressor 101 during a compression process; a detector 130 for detecting a temperature or a pressure of a refrigerant present on a downstream side of the first throttling device and on an upstream side of the second throttling device in the refrigerant circuit 160 or present in the injection passage 170; and a controller 108 for decreasing an opening degree of the first throttling device when the controller 108 recognizes, by the detector 130, that a pressure of the refrigerant flowing into the gas-liquid separator 104 exceeds a specified pressure lower than a saturation vapor pressure, in a starting operation, a defrosting operation or a stopping operation.
    • 根据本发明的制冷循环装置100包括:制冷剂回路160,其包括压缩机101,冷凝器(102或106),第一节流装置(103或105),气液分离器104,第二节流装置 (105或103)和蒸发器(106或102); 在气液分离器104中分离出的气相制冷剂在压缩过程中被供给到压缩机101的喷射通路170; 用于检测存在于第一节流装置的下游侧的制冷剂的温度或压力以及制冷剂回路160中存在于喷射通道170中的第二节流装置的上游侧的检测器130; 以及控制器108,当控制器108通过检测器130识别出流入气液分离器104的制冷剂的压力超过比饱和蒸汽压低的规定压力时,减小第一节流装置的开度, 在起动操作中,除霜操作或停止操作。
    • 3. 发明申请
    • ROTARY-TYPE FLUID MACHINE AND REFRIGERATION CYCLE APPARATUS
    • 旋转式流体机和制冷循环装置
    • US20110302954A1
    • 2011-12-15
    • US13216039
    • 2011-08-23
    • Atsuo OKAICHIHiroshi HASEGAWAMasaru MATSUITomoichiro TAMURATakeshi OGATA
    • Atsuo OKAICHIHiroshi HASEGAWAMasaru MATSUITomoichiro TAMURATakeshi OGATA
    • F25B43/02F04C23/00
    • F25B43/02F01C1/3564F01C11/002F01C11/004F01C13/04F01C21/04F01C21/108F04C18/3564F04C23/008F04C29/025F04C2240/809
    • A rotary-type fluid machine (10A) includes: a closed casing (1) having a bottom portion utilized as an oil reservoir, a rotary-type fluid mechanism (expansion mechanism) (15) that is provided in an upper portion of the closed casing (1) and in which working chambers (32, 33) in cylinders (22, 24) are partitioned into a suction side working chamber and a discharge side working chamber by vanes (28, 29), a shaft (5) having therein an oil supply passage (51) for supplying oil to the fluid mechanism (15), the shaft being connected to the fluid mechanism (15) and extending an oil reservoir (45), an oil pump (52) provided at a lower portion of the shaft (5), an oil retaining portion (65) for retaining oil, which is pumped up by the oil pump (52) and supplied through the oil supply passage (51), in a surrounding region around the fluid mechanism (15) to allow the partitioning members of the fluid mechanism (15) to be lubricated, the oil retaining portion formed so that the liquid level of the oil retained therein is positioned higher the lower face of the partitioning members (28, 29).
    • 旋转式流体机械(10A)包括:具有用作储油器的底部的封闭壳体(1),设置在封闭的上部的旋转型流体机构(膨胀机构)(15) 壳体(1),其中气缸(22,24)中的工作室(32,33)通过叶片(28,29)分隔成吸力侧工作室和排出侧工作室,其中具有其中的轴(5) 用于向流体机构(15)供给油的供油通道(51),所述轴连接到流体机构(15)并延伸储油器(45),油泵(52)设置在流体机构 轴(5),用于保持油的油保持部(65),其被油泵(52)泵送并通过供油通道(51)供给到围绕流体机构(15)的周围区域, 以允许流体机构(15)的分隔构件被润滑,油保持部分形成为使得液面 保持在其中的油定位在分隔构件(28,29)的下表面的较高处。
    • 7. 发明申请
    • ROTARY COMPRESSOR AND REFRIGERATION CYCLE APPARATUS
    • 旋转压缩机和制冷循环装置
    • US20120174618A1
    • 2012-07-12
    • US13497431
    • 2011-07-06
    • Takeshi OgataAtsuo OkaichiHiroshi Hasegawa
    • Takeshi OgataAtsuo OkaichiHiroshi Hasegawa
    • F25B1/00F04C18/344
    • F04C18/3564F04C23/001F04C23/008F04C29/128F25B1/04F25B1/10F25B2400/23
    • A rotary compressor (102) has a shaft (4), a cylinder (5), a piston (8), a first vane (32), a second vane (33), a first suction port (19), and a second suction port (20). The first vane (32) divides a space between the cylinder (5) and the piston (8) along a circumferential direction of the piston (8). The second vane (33) further divides the space divided by the first vane (32) along the circumferential direction of the piston (8) so that a first compression chamber (25) and a second compression chamber (26) having a smaller volume than the first compression chamber (25) are formed within the cylinder (5). The first suction port (19) introduces a working fluid into the first compression chamber (25). The second suction port (20) introduces a working fluid into the second compression chamber (26). The second suction port (20) is provided with a suction check valve (50).
    • 旋转压缩机(102)具有轴(4),气缸(5),活塞(8),第一叶片(32),第二叶片(33),第一吸入口(19) 吸入口(20)。 第一叶片(32)沿着活塞(8)的圆周方向在气缸(5)和活塞(8)之间分隔空间。 第二叶片(33)还沿着活塞(8)的圆周方向划分由第一叶片(32)分开的空间,使得具有比第一压缩室(25)和第二压缩室 第一压缩室25形成在气缸5内。 第一吸入口(19)将工作流体引入第一压缩室(25)。 第二吸入口(20)将工作流体引入第二压缩室(26)。 第二吸入口(20)设置有吸入止回阀(50)。