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    • 5. 发明授权
    • Refrigeration cycle
    • 制冷循环
    • US6006544A
    • 1999-12-28
    • US122590
    • 1998-07-27
    • Yukio WatanabeHisao WakabayashiHironao NumotoShinji WatanabeAkira FujitakaKanji HanedaYoshinori KobayashiYuichi YakumaruNarito Yamaguchi
    • Yukio WatanabeHisao WakabayashiHironao NumotoShinji WatanabeAkira FujitakaKanji HanedaYoshinori KobayashiYuichi YakumaruNarito Yamaguchi
    • F25B41/06
    • F25B41/067
    • A refrigeration cycle that controls the deposit of foreign matter at inlet or outlet of a capillary tube, which forms an expansion device in the refrigeration, regardless of changeover from a cooling operation to a heating operation. In particular, in a refrigeration cycle using an alternative refrigerant, a junction is provided for joining an end of a capillary tube forming an expansion device to the piping through which the refrigerant flows. The junction has a slope defined by the inside diameter thereof, which gradually decreases from the side of the junction that joins the piping to the side of the junction that joined the capillary tube. An end portion of the capillary tube projects into the junction at the piping side. The projecting end of the capillary tube is opened obliquely to the axial line of the capillary tube. A hole is formed in the peripheral wall of the projecting end of the capillary tube. According to such an arrangement, foreign matter in the refrigerant is forced to be deposited in portions of the refrigerant cycle other than the capillary tube and prevented from clogging the capillary tube.
    • 控制在毛细管的入口或出口处异物沉积的制冷循环,其形成制冷中的膨胀装置,而不管从冷却操作转换到加热操作。 特别地,在使用替代制冷剂的制冷循环中,设置有用于将形成膨胀装置的毛细管的端部与制冷剂流过的管道接合的连接点。 接头具有由其内径限定的斜面,其从连接管道的一侧到连接毛细管的接合部的侧面逐渐减小。 毛细管的端部突出到管道侧的接合处。 毛细管的突出端与毛细管的轴线倾斜地打开。 在毛细管的突出端的周壁形成有孔。 根据这样的结构,制冷剂中的异物被迫在除了毛细管以外的制冷剂循环的部分中沉积,并且防止毛细管堵塞。
    • 7. 发明授权
    • Refrigerator controller
    • 冰箱控制器
    • US5715694A
    • 1998-02-10
    • US653337
    • 1996-05-24
    • Yuichi YakumaruShinji WatanabeAkira FujitakaYoshinori Kobayashi
    • Yuichi YakumaruShinji WatanabeAkira FujitakaYoshinori Kobayashi
    • F25B9/00F25B13/00F25B41/00F25B1/00
    • F25B9/006F25B13/00
    • A refrigerator controller employs a non-azeotropic mixture refrigerant and a compressor, a four-way valve, an outdoor hear exchanger, a fractionator, an overhead condenser provided on the top of the fractionator, a first flow control valve, a throttle, and an indoor heat exchanger which are connected in the form of a ring. The controller further employs a circuit at a lower part of the fractionator returning to the bottom of the fractionator through a second flow control valve and a reheater, and a circuit returning from the overhead condenser to the top of the fractionator, thereby controlling the openings of the first and second flow control valves by the output signal of indoor and outdoor heat exchanger temperature detectors, an indoor temperature detector, and an indoor temperature setting device through a flow controller. In this manner, a wider control range of refrigerating capability can be realized. Thus a high separation effect for mixed refrigerant components is obtained while controlling a safe and optimum refrigerant cycle.
    • 冰箱控制器采用非共沸混合制冷剂和压缩机,四通阀,室外听筒式交换器,分馏器,设置在分馏塔顶部的塔顶冷凝器,第一流量控制阀,节流阀和 以环形连接的室内热交换器。 控制器还在分馏器的下部通过第二流量控制阀和再热器返回到分馏塔的底部的回路,以及从塔顶冷凝器返回到分馏器的顶部的回路,从而控制分馏器的开口 第一和第二流量控制阀通过室内和室外热交换器温度检测器的输出信号,室内温度检测器和通过流量控制器的室内温度设定装置。 以这种方式,可以实现更宽的制冷能力控制范围。 因此,在控制安全和最佳制冷剂循环的同时获得混合制冷剂组分的高分离效果。
    • 8. 发明授权
    • Refrigeration cycle apparatus
    • 制冷循环装置
    • US08590326B2
    • 2013-11-26
    • US12680780
    • 2008-10-08
    • Yuichi YakumaruKatsuji TaniguchiMasaya Honma
    • Yuichi YakumaruKatsuji TaniguchiMasaya Honma
    • F25D21/06F25D21/00F25B49/00F25B1/00
    • F25B47/022F25B9/06F25B2309/061F25B2400/075F25B2400/14F25B2600/0253Y02B30/741
    • A refrigeration cycle apparatus 100 includes a first compressor 101, a second compressor 102 provided in parallel with the first compressor 101, a radiator 103 for cooling a refrigerant compressed by the compressors 101 and 102, an expander 104 for recovering power while expanding the refrigerant cooled by the radiator 103, an evaporator 105 for evaporating the refrigerant expanded by the expander 104, a rotation shaft 123 connecting the first compressor 101 to the expander 104 so that the first compressor 101 uses the power recovered by the expander 104, a controller 112 for executing a control including a step of increasing a flow rate of the refrigerant gradually during a defrosting operation in which frost formed on the evaporator 105 is melted by allowing the refrigerant having a high temperature to flow through the evaporator 105.
    • 制冷循环装置100包括第一压缩机101,与第一压缩机101并联设置的第二压缩机102,用于冷却由压缩机101,102压缩的制冷剂的散热器103,膨胀机104, 通过散热器103,用于蒸发由膨胀机104膨胀的制冷剂的蒸发器105,将第一压缩机101连接到膨胀机104的旋转轴123,使得第一压缩机101使用由膨胀机104回收的动力,控制器112, 执行包括在通过允许具有高温的制冷剂流过蒸发器105而在蒸发器105上形成的霜熔化的除霜操作期间逐渐增加制冷剂的流量的步骤的控制。
    • 9. 发明申请
    • REFRIGERATION CYCLE APPARATUS
    • 制冷循环装置
    • US20110011080A1
    • 2011-01-20
    • US12677452
    • 2009-06-19
    • Takeshi OgataHiroshi HasegawaYu ShiotaniYuichi YakumaruMasaru Matsui
    • Takeshi OgataHiroshi HasegawaYu ShiotaniYuichi YakumaruMasaru Matsui
    • F02G1/04
    • F25B9/06F25B2400/075F25B2400/14F25B2600/2515
    • A refrigeration cycle apparatus includes a first compressor 1, which is an expander-compressor unit, and a second compressor 2. A first compression mechanism 11 of the first compressor 1 and a second compression mechanism 21 of the second compressor 2 are disposed in parallel with each other in a refrigerant circuit 30. The refrigeration cycle apparatus is provided with an injection passage 6. A controller 7 controls a first motor 12 of the first compressor 1 and a second motor 22 of the second compressor 2, and an opening of an injection valve 61. The controller 7 performs an optimizing operation for the opening of the injection valve. In the optimizing operation, the opening of the injection valve 61 is brought closer to a fully closed state or closer to a fully opened state while a pressure or a temperature of a discharged refrigerant guided to a radiator 4 through a first pipe 3a is kept approximately constant.
    • 制冷循环装置包括作为膨胀机一体机的第一压缩机1和第二压缩机2.第一压缩机1的第一压缩机构11和第二压缩机2的第二压缩机构21平行配置 制冷循环装置设置有喷射通道6.控制器7控制第一压缩机1的第一电动机12和第二压缩机2的第二电动机22以及喷射开口 控制器7执行用于打开喷射阀的优化操作。 在优化操作中,喷射阀61的打开更靠近完全关闭状态或更接近完全打开状态,同时通过第一管3a被引导到散热器4的排出制冷剂的压力或温度保持近似 不变。
    • 10. 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。