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    Vapor-compression refrigerant cycle system with refrigeration cycle and Rankine cycle
    1.
    发明授权
    Vapor-compression refrigerant cycle system with refrigeration cycle and Rankine cycle 失效
    具有制冷循环和兰金循环的蒸气压缩制冷剂循环系统

    公开(公告)号：US07178358B2

    公开(公告)日：2007-02-20

    申请号：US10765761

    申请日：2004-01-27

    申请人： Atsushi Inaba ,  Yasushi Yamanaka ,  Shigeki Iwanami ,  Koichi Ban ,  Shigeru Hisanaga ,  Tadashi Hotta ,  Yukikatsu Ozaki ,  Kazuhide Uchida

    发明人： Atsushi Inaba ,  Yasushi Yamanaka ,  Shigeki Iwanami ,  Koichi Ban ,  Shigeru Hisanaga ,  Tadashi Hotta ,  Yukikatsu Ozaki ,  Kazuhide Uchida

    IPC分类号： F25B1/00 ,  F25B43/00 ,  F25B27/00

    CPC分类号： F25B27/00 ,  F02G5/04 ,  F25B1/04 ,  F25B2400/04 ,  F25B2400/23 ,  F25B2600/2507 ,  F25B2700/04 ,  Y02T10/166

    摘要： A vapor-compression refrigerant cycle system with a refrigeration cycle and a Rankine cycle includes a compressor, a radiator, a gas-liquid separator, a decompression device and an evaporator. In the vapor-compression refrigerant cycle system, a liquid pump is disposed for supplying the liquid refrigerant in the gas-liquid separator to a heater for heating the refrigerant, a cooling means is provided for cooling the liquid refrigerant to be sucked into the liquid pump, and an energy recovery unit for expanding the refrigerant flowing out of the heater is disposed to recover thermal energy in the refrigerant from the heater. When the Rankine cycle is set so that the energy recovery unit recovers the thermal energy, the cooling means cools the liquid refrigerant to be sucked into the liquid pump. Therefore, pumping efficiency of the liquid pump can be effectively improved.

    摘要翻译： 具有制冷循环和兰金循环的蒸汽压缩制冷剂循环系统包括压缩机，散热器，气液分离器，减压装置和蒸发器。 在蒸汽压缩制冷剂循环系统中，设置液体泵，用于将气液分离器中的液体制冷剂供给到用于加热制冷剂的加热器，设置冷却装置以冷却要被吸入液体泵的液体制冷剂 并且设置用于膨胀从加热器流出的制冷剂的能量回收单元，以从加热器回收制冷剂中的热能。 当设置兰金循环使得能量回收单元恢复热能时，冷却装置冷却待吸入液体泵的液体制冷剂。 因此，能够有效地提高液体泵的泵送效率。

    Vapor compression type refrigerating system
    5.
    发明授权
    Vapor compression type refrigerating system 失效
    蒸气压缩式制冷系统

    公开(公告)号：US6044655A

    公开(公告)日：2000-04-04

    申请号：US916634

    申请日：1997-08-22

    申请人： Yukikatsu Ozaki ,  Yuichi Sakajo ,  Hisayoshi Sakakibara ,  Kazuhide Uchida

    发明人： Yukikatsu Ozaki ,  Yuichi Sakajo ,  Hisayoshi Sakakibara ,  Kazuhide Uchida

    IPC分类号： F25B9/00 ,  F25B40/00 ,  F25B41/06 ,  F25B1/00

    CPC分类号： F28D7/106 ,  F25B40/00 ,  F25B41/062 ,  F25B9/008 ,  F25B2309/061 ,  F25B2341/063 ,  F25B2341/0653 ,  F25B2341/0662 ,  F25B2400/13 ,  F25B2600/05 ,  F25B2600/17 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/2101 ,  F25B2700/2102 ,  F25B2700/2104 ,  F25B2700/2106 ,  F25B2700/21173 ,  F25B2700/21175 ,  Y02B30/72 ,  Y10S62/17

    摘要： A refrigerating system, using CO.sub.2 as a refrigerant, for an air conditioner for an automobile. A pressure at the outlet of the heat emitter 2 is controlled to a target value in accordance with the temperature of the refrigerant at the outlet of the heat emitter for obtaining an operation of the refrigerating system along the optimum control line .eta..sub.max. A pressure reducer 4 and a cooler 5 are provided on a branched passageway 28 branched from a refrigerant recirculating passageway 27 for injection. The cooler 5 is for obtaining a heat exchange between a flow of the refrigerant on the branched passageway 28 after being cooled by the pressure reducer and a flow of the refrigerant on the main passageway 27, thereby cooling the refrigerant directed to the evaporator. In a second aspect of the invention, a means is provided for increasing a target value of the pressure at the pressure reducer when a thermal load of the refrigerating system is high. In a third aspect, a series of pressure reducers are arranged on the main recirculating passageway. The second stage pressure reducer is controlled so as to obtain a desired value of degree of super heating at the inlet of the compressor.

    摘要翻译： 一种使用二氧化碳作为制冷剂的制冷系统，用于汽车空调。 根据发热体出口处的制冷剂的温度，将发热体2的出口处的压力控制在目标值，以获得最佳控制线的最大控制线的制冷系统的操作。 减压器4和冷却器5设置在从用于注射的制冷剂再循环通道27分支的分支通道28上。 冷却器5用于在通过减压器冷却后的分支通道28上的制冷剂流与主通道27上的制冷剂流之间获得热交换，从而冷却被引导至蒸发器的制冷剂。 在本发明的第二方面中，提供了一种用于当制冷系统的热负荷高时增加减压器处的压力的目标值的装置。 在第三方面，在主再循环通道上布置有一系列减压器。 控制第二级减压器以获得压缩机入口处的超级加热度的期望值。

    Ejector with tapered nozzle and tapered needle
    6.
    发明授权
    Ejector with tapered nozzle and tapered needle 有权
    喷嘴采用锥形喷嘴和锥形针

    公开(公告)号：US07334427B2

    公开(公告)日：2008-02-26

    申请号：US10791650

    申请日：2004-03-02

    申请人： Yukikatsu Ozaki ,  Tadashi Hotta ,  Hirotsugu Takeuchi

    发明人： Yukikatsu Ozaki ,  Tadashi Hotta ,  Hirotsugu Takeuchi

    IPC分类号： F25B1/06 ,  F25B41/06

    CPC分类号： F25B9/008 ,  B60H2001/3298 ,  F04F5/04 ,  F04F5/461 ,  F25B41/00 ,  F25B2309/061 ,  F25B2341/0012 ,  F25B2341/0013 ,  F25B2500/01 ,  F25B2600/17

    摘要： In an ejector, a nozzle includes a nozzle tapered section having an inner passage with a radial dimension reduced toward a nozzle outlet port, and a needle having a needle tapered section disposed in the inner passage. The needle tapered section has a cross sectional area reduced toward a downstream end of the needle, and the downstream end of the needle is positioned at a downstream side with respect to the nozzle outlet port. In addition, the nozzle tapered section has a taper angle (φ1) which is equal to or greater than a taper angle (φ2) of the needle tapered section. Therefore, a boundary face on the outside of a nozzle jet flow becomes in a balanced natural shape, and is controlled in accordance with an operating condition. Thus, the ejector cycle can be operated while keeping high efficiency, regardless of the thermal load of the ejector cycle.

    摘要翻译： 在喷射器中，喷嘴包括具有径向尺寸朝向喷嘴出口减小的内通道的喷嘴锥形部分和设置在内通道中的具有针锥形部分的针。 针状锥形部具有朝向针的下游端减小的截面积，针的下游端位于相对于喷嘴出口的下游侧。 此外，喷嘴锥形部具有等于或大于针锥形部的锥角（phi 2）的锥角（phi 1）。 因此，喷嘴喷流的外侧的边界面成为平衡的自然形状，并且根据操作条件进行控制。 因此，不管喷射器周期的热负荷如何，喷射器循环可以在保持高效率的同时运行。

    Oil content measuring device and refrigeration system using the same
    7.
    发明授权
    Oil content measuring device and refrigeration system using the same 失效
    含油量测量装置和制冷系统采用相同的方法

    公开(公告)号：US06776029B2

    公开(公告)日：2004-08-17

    申请号：US10271678

    申请日：2002-10-15

    申请人： Tadashi Hotta ,  Yukikatsu Ozaki ,  Toshio Hirata

    发明人： Tadashi Hotta ,  Yukikatsu Ozaki ,  Toshio Hirata

    IPC分类号： G01N3330

    CPC分类号： F25B31/002 ,  F25B2309/061 ,  F25B2500/19 ,  F25B2700/03 ,  G01N33/30

    摘要： An oil content measuring device measures the oil content of a refrigerant in a supercritical or a vapor phase state. A refrigeration system uses the oil content measuring device. The oil content measuring device has an electrostatic capacity measuring device for measuring an electrostatic capacity of the refrigerant containing a refrigerating machine oil, a density measuring device for measuring a density of at least one of the refrigerant and the refrigerating machine oil, a computing device for performing a computation on correlation characteristics between the electrostatic capacity and an oil content which indicates the ratio of the amount of the refrigerating machine oil to the amount of the refrigerant containing the refrigerating machine oil, using the density measured by the density measuring device. An oil content determining device determines an oil content at the measuring time from an electrostatic capacity using the correlation characteristics obtained by the computing device.

    摘要翻译： 含油量测量装置测量超临界或汽相状态的制冷剂的油含量。 制冷系统使用含油量测量装置。 含油量测量装置具有用于测量含有冷冻机油的制冷剂的静电容量的静电电容测量装置，用于测量至少一个制冷剂和冷冻机油的密度的浓度测量装置，用于 利用密度测定装置测定的密度，对表示冷冻机油的量与含有冷冻机油的制冷剂的比例的静电电容与含油量之间的相关特性进行计算。 油含量确定装置使用由计算装置获得的相关特性，从静电容量确定测量时刻的油含量。

    Heat pump cycle system
    10.
    发明授权
    Heat pump cycle system 有权
    热泵循环系统

    公开(公告)号：US06230506B1

    公开(公告)日：2001-05-15

    申请号：US09378833

    申请日：1999-08-23

    申请人： Shin Nishida ,  Yukikatsu Ozaki ,  Naruhide Kimura ,  Tadashi Hotta ,  Motohiro Yamaguchi

    发明人： Shin Nishida ,  Yukikatsu Ozaki ,  Naruhide Kimura ,  Tadashi Hotta ,  Motohiro Yamaguchi

    IPC分类号： F25B4104

    CPC分类号： F25B9/008 ,  B60H1/00907 ,  B60H1/3205 ,  B60H1/3211 ,  B60H1/3213 ,  B60H2001/00935 ,  B60H2001/3254 ,  B60H2001/3255 ,  B60H2001/3261 ,  B60H2001/3264 ,  B60H2001/3272 ,  B60H2001/3282 ,  B60H2001/3285 ,  F25B5/04 ,  F25B6/04 ,  F25B13/00 ,  F25B41/062 ,  F25B2309/061 ,  F25B2341/063 ,  F25B2600/0253 ,  F25B2600/17

    摘要： A heat pump cycle system which can switches cooling operation and heating operation for a compartment includes a first inside heat exchanger and a second inside heat exchanger disposed in an air conditioning case. The first inside heat exchanger is disposed in the air conditioning case at a downstream air side of the second inside heat exchanger, while being arranged in line in a flow direction of refrigerant. The first inside heat exchanger is upstream from the second inside heat exchanger in the flow direction of refrigerant during the heating operation. In the heat pump cycle system, an expansion valve is controlled so that coefficient of performance in each operation becomes approximately maximum. Thus, during the heating operation of the heat pump cycle system, a lower limit temperature of air blown from the inside heat exchangers can be increased so that temperature of air blown into the compartment is increased, while the coefficient of performance is improved.

    摘要翻译： 能够切换室内的制冷运转和加热运转的热泵循环系统包括设置在空调箱内的第一内部热交换器和第二内部热交换器。 第一内侧热交换器在第二内侧热交换器的下游侧的空调壳体中配置成沿制冷剂的流动方向配置。 第一内侧热交换器在制热运转时在制冷剂的流动方向上从第二内侧热交换器的上游侧。 在热泵循环系统中，控制膨胀阀，使得每个操作中的性能系数近似为最大。 因此，在热泵循环系统的加热运转时，可以提高从内部热交换器吹出的空气的下限温度，从而提高吹入室内的空气的温度，同时提高性能系数。