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公开(公告)号：US20110036110A1
公开(公告)日：2011-02-17
申请号：US12989440
申请日：2009-04-28
申请人： Shuji Fujimoto , Atsushi Yoshimi , Takahiro Yamaguchi , Tooru Inazuka , Kazuhiro Furusho , Mitsuharu Uchida , Hidehiko Kataoka
发明人： Shuji Fujimoto , Atsushi Yoshimi , Takahiro Yamaguchi , Tooru Inazuka , Kazuhiro Furusho , Mitsuharu Uchida , Hidehiko Kataoka
CPC分类号： F24D3/18 , F24D17/02 , F24D2200/24 , F25B1/10 , F25B9/008 , F25B31/004 , F25B40/00 , F25B2309/061 , F25B2339/047 , F25B2400/0405 , F25B2400/072 , F25B2400/13 , F25B2700/21152 , F25B2700/21161 , F25B2700/21171 , Y02B30/12
摘要： A refrigeration apparatus performs heat exchange on a water tube system having a water inlet tube leading exterior water to a water branching point, first and second branching water tubes extending from the water branching point, and a water outlet tube leading to the exterior from a convergent point of the first and second branching water tubes. Active refrigerant is in a supercritical state in at least part of a refrigeration cycle. The refrigeration apparatus includes a main expansion mechanism connected to an evaporator, first and second compression elements connected by a first refrigerant tube, a first heat exchanger exchanging heat between the first refrigerant tube and the first branching water tubes, second refrigerant tubes connecting the second compression element and the main expansion mechanism, and a second heat exchanger in which the second refrigerant tubes exchange heat with the second branching water tubes and does not exchange heat with the water inlet tube.
摘要翻译： 制冷装置在水管系统上进行热交换，所述水管系统具有将外部水引导到水分支点的水入口管，从水分支点延伸的第一和第二分支水管，以及从会聚的通向外部的出水管 第一和第二分支水管的点。 活性制冷剂在制冷循环的至少一部分中处于超临界状态。 制冷装置包括连接到蒸发器的主膨胀机构，通过第一制冷剂管连接的第一和第二压缩元件，在第一制冷剂管和第一分支水管之间交换热量的第一热交换器，将第二压缩 元件和主膨胀机构;第二热交换器，其中第二制冷剂管与第二分支水管交换热量，并且不与进水管交换热量。
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公开(公告)号：US20110036119A1
公开(公告)日：2011-02-17
申请号：US12989863
申请日：2009-04-30
申请人： Shuji Fujimoto , Atsushi Yoshimi , Takahiro Yamaguchi , Toru Inazuka , Kazuhiro Furusho , Mitsuharu Uchida , Hidehiko Kataoka
发明人： Shuji Fujimoto , Atsushi Yoshimi , Takahiro Yamaguchi , Toru Inazuka , Kazuhiro Furusho , Mitsuharu Uchida , Hidehiko Kataoka
IPC分类号： F25B1/10
CPC分类号： F25B9/008 , F25B1/10 , F25B13/00 , F25B40/00 , F25B2309/061 , F25B2313/02741 , F25B2400/13 , F25B2600/2507
摘要： A refrigerating apparatus, where refrigerant reaches a supercritical state in at least part of a refrigeration cycle, includes at least one expansion mechanism, an evaporator connected to the expansion mechanism, first and second sequential compression elements, a radiator connected to the discharge side of the second compression element, a first refrigerant pipe interconnecting the radiator and the expansion mechanism, a heat exchanger arranged to cause heat exchange between the first refrigerant pipe and another refrigerant pipe. Preferably, a heat exchanger switching mechanism is switchable so that refrigerant flows in the first refrigerant pipe through the first heat exchanger or in a heat exchange bypass pipe connected to the first refrigerant pipe. Alternatively, a heat exchanger switching mechanism increases refrigerant flowing through a second expansion mechanism when an air temperature at the evaporator and/or a compressed refrigerant temperature detected is higher and/or lower than predetermined values.
摘要翻译： 一种制冷剂在制冷循环的至少一部分达到超临界状态的制冷装置包括至少一个膨胀机构，连接到膨胀机构的蒸发器，第一和第二顺序压缩元件，连接到制冷循环的排出侧的散热器 第二压缩元件，将散热器和膨胀机构相互连接的第一制冷剂管，布置成在第一制冷剂管与另一制冷剂管之间进行热交换的热交换器。 优选地，热交换器切换机构是可切换的，使得制冷剂在第一制冷剂管道中通过第一热交换器或连接到第一制冷剂管道的热交换旁通管流动。 或者，当蒸发器的空气温度和/或检测到的压缩制冷剂温度高于和低于预定值时，热交换器切换机构增加流过第二膨胀机构的制冷剂。
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3.发明授权公开(公告)号：US08959951B2
公开(公告)日：2015-02-24
申请号：US12989863
申请日：2009-04-30
申请人： Shuji Fujimoto , Atsushi Yoshimi , Takahiro Yamaguchi , Toru Inazuka , Kazuhiro Furusho , Mitsuharu Uchida , Hidehiko Kataoka
发明人： Shuji Fujimoto , Atsushi Yoshimi , Takahiro Yamaguchi , Toru Inazuka , Kazuhiro Furusho , Mitsuharu Uchida , Hidehiko Kataoka
CPC分类号： F25B9/008 , F25B1/10 , F25B13/00 , F25B40/00 , F25B2309/061 , F25B2313/02741 , F25B2400/13 , F25B2600/2507
摘要： A refrigerating apparatus, where refrigerant reaches a supercritical state in at least part of a refrigeration cycle, includes at least one expansion mechanism, an evaporator connected to the expansion mechanism, first and second sequential compression elements, a radiator connected to the discharge side of the second compression element, a first refrigerant pipe interconnecting the radiator and the expansion mechanism, a heat exchanger arranged to cause heat exchange between the first refrigerant pipe and another refrigerant pipe. Preferably, a heat exchanger switching mechanism is switchable so that refrigerant flows in the first refrigerant pipe through the first heat exchanger or in a heat exchange bypass pipe connected to the first refrigerant pipe. Alternatively, a heat exchanger switching mechanism increases refrigerant flowing through a second expansion mechanism when an air temperature at the evaporator and/or a compressed refrigerant temperature detected is higher and/or lower than predetermined values.
摘要翻译： 一种制冷剂在制冷循环的至少一部分达到超临界状态的制冷装置包括至少一个膨胀机构，连接到膨胀机构的蒸发器，第一和第二顺序压缩元件，连接到制冷循环的排出侧的散热器 第二压缩元件，将散热器和膨胀机构相互连接的第一制冷剂管，布置成在第一制冷剂管与另一制冷剂管之间进行热交换的热交换器。 优选地，热交换器切换机构是可切换的，使得制冷剂在第一制冷剂管道中通过第一热交换器或连接到第一制冷剂管道的热交换旁通管流动。 或者，当蒸发器的空气温度和/或检测到的压缩制冷剂温度高于和低于预定值时，热交换器切换机构增加流过第二膨胀机构的制冷剂。
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公开(公告)号：US20100275634A1
公开(公告)日：2010-11-04
申请号：US12812111
申请日：2009-02-03
申请人： Tetsuya Okamoto , Kazuhiro Furusho , Takayuki Kawano , Shinichi Kasahara , Masakazu Okamoto , Takahiro Yamaguchi , Michio Moriwaki , Syuuji Furui , Atsushi Yoshimi , Shuuji Fujimoto
发明人： Tetsuya Okamoto , Kazuhiro Furusho , Takayuki Kawano , Shinichi Kasahara , Masakazu Okamoto , Takahiro Yamaguchi , Michio Moriwaki , Syuuji Furui , Atsushi Yoshimi , Shuuji Fujimoto
CPC分类号： F25B31/004 , F25B13/00 , F25B40/00 , F25B2309/061 , F25B2313/02742 , F25B2400/14 , F25B2400/141
摘要： A refrigerant circuit (11) includes an oil separator (60) configured to separate oil from high pressure refrigerant, and an oil feed circuit (70) configured to feed the oil separated in the oil separator (60) to a compression mechanism (20) so as to cool the refrigerant in the course of a compression phase of the compression mechanism (20). The oil feed circuit (70) includes a recovery mechanism (40) configured to recover energy of the oil separated in the oil separator (60). In the compression mechanism (20), the refrigerant is cooled by the oil, thereby reducing power of the compression mechanism (20). Simultaneously, in the recovery mechanism (40), power required to increase pressure of the oil in the compression mechanism (20) is recovered.
摘要翻译： 制冷剂回路（11）具备将油与高压制冷剂分离的油分离器（60），将供油分离器（60）中分离出的油供给到压缩机构（20）的供油回路（70） 以在压缩机构（20）的压缩阶段的过程中冷却制冷剂。 供油回路（70）包括回收机构（40），其构造成回收在分油器（60）中分离的油的能量。 在压缩机构20中，制冷剂被油冷却，从而减小压缩机构20的动力。 同时，在回收机构（40）中，恢复增加压缩机构（20）中的油的压力所需的功率。
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公开(公告)号：US08327661B2
公开(公告)日：2012-12-11
申请号：US12744439
申请日：2008-11-26
申请人： Shuji Fujimoto , Atsushi Yoshimi
发明人： Shuji Fujimoto , Atsushi Yoshimi
IPC分类号： F25B1/10
CPC分类号： F25B13/00 , F25B9/008 , F25B2309/061 , F25B2313/0272 , F25B2313/02741 , F25B2400/075 , F25B2400/13 , F25B2400/23
摘要： A refrigeration apparatus uses a refrigerant that operates in a region including critical processes, and includes a compression mechanism having first and second compressors, a heat-source-side heat exchanger, an expansion mechanism, a utilization-side heat exchanger, an intercooler, and an intermediate refrigerant pipe. The first compressor has a first low-pressure compression element and a first high-pressure compression element to increase pressure of refrigerant more than the first low-pressure compression element. The second compressor has a second low-pressure compression element and a second high-pressure compression element to increase pressure of refrigerant more than the second low-pressure compression element. The intermediate refrigerant pipe causes refrigerant discharged by the first and second low-pressure compression elements to pass through the intercooler and be sucked into first and second high-pressure the compression elements. The intake sides of the first and second low-pressure compression elements are connected. The discharge sides of the first and second high-pressure compression elements merge.
摘要翻译： 制冷装置使用在包括关键工序的区域中工作的制冷剂，并且包括具有第一和第二压缩机的压缩机构，热源侧热交换器，膨胀机构，利用侧热交换器，中间冷却器和 中间制冷剂管。 第一压缩机具有第一低压压缩元件和第一高压压缩元件，以使第一低压压缩元件和第一高压压缩元件相比第一低压压缩元件增加制冷剂的压力。 第二压缩机具有第二低压压缩元件和第二高压压缩元件，以增加制冷剂的压力，而不是第二低压压缩元件。 中间制冷剂管使得由第一和第二低压压缩元件排出的制冷剂通过中间冷却器，并被吸入第一和第二高压压缩元件。 连接第一和第二低压压缩元件的进气侧。 第一和第二高压压缩元件的排出侧合并。
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公开(公告)号：US20110005270A1
公开(公告)日：2011-01-13
申请号：US12919047
申请日：2009-02-25
CPC分类号： F25B1/10 , F25B9/008 , F25B13/00 , F25B2309/061 , F25B2313/021 , F25B2313/02741 , F25B2400/04 , F25B2400/072 , F25B2400/13 , F25B2600/17
摘要： A refrigeration apparatus includes a compression mechanism, a heat source-side heat exchanger, a usage-side heat exchanger, a switching mechanism and an intermediate heat exchanger. Refrigerant discharged from a first-stage compression element is sequentially compressed by a second-stage compression element. Each of the heat source-side heat exchanger and the usage-side heat exchanger functions an evaporator or radiator. The switching mechanism is configured to switch between a cooling operation state and a heating operation state. The intermediate heat exchanger is configured to cool refrigerant discharged from the first-stage compression element and drawn into the second-stage compression element when the switching mechanism has been set to the cooling operation state, and to evaporate refrigerant whose heat is radiated in the usage-side heat exchanger when the switching mechanism has been set to the heating operation state.
摘要翻译： 制冷装置包括压缩机构，热源侧热交换器，利用侧热交换器，切换机构和中间热交换器。 从第一级压缩元件排出的制冷剂被后级压缩元件依次压缩。 热源侧热交换器和利用侧热交换器的功能是蒸发器或散热器。 切换机构被配置为在制冷运转状态和制热运转状态之间切换。 中间热交换器构成为，在将切换机构设定为制冷运转状态时，冷却从前级侧压缩部件排出的制冷剂，并将其吸入后级侧压缩部件，使其在使用中散热的制冷剂蒸发 当切换机构已经被设置为制热操作状态时。
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公开(公告)号：US20100251761A1
公开(公告)日：2010-10-07
申请号：US12744451
申请日：2008-11-27
申请人： Atsushi Yoshimi , Shuji Fujimoto
发明人： Atsushi Yoshimi , Shuji Fujimoto
IPC分类号： F25B39/02
CPC分类号： F25B13/00 , F25B1/10 , F25B9/008 , F25B2309/061 , F25B2313/0272 , F25B2313/02741 , F25B2400/075 , F25B2400/13 , F25B2400/23
摘要： A refrigeration apparatus uses a refrigerant that operates in a supercritical range. The refrigeration apparatus includes a compression mechanism, a heat source-side heat exchanger, an expansion mechanism, a usage-side heat exchanger, a switching mechanism, an intercooler, a bypass tube, and an injection tube. The switching mechanism is configured to switch between cooling and heating operation states. When the switching mechanism is switched to the cooling operation state to allow refrigerant to flow to the heat source-side heat exchanger and a reverse cycle defrosting operation for defrosting the heat source-side heat exchanger is performed, the refrigerant is caused to flow to the heat source-side heat exchanger, the intercooler and the injection tube. After the defrosting of the intercooler is detected as being complete, the bypass tube is used so as to ensure that the refrigerant does not flow to the intercooler and the injection valve is controlled so that the opening degree is increased.
摘要翻译： 制冷装置使用在超临界范围内工作的制冷剂。 制冷装置包括压缩机构，热源侧热交换器，膨胀机构，利用侧热交换器，切换机构，中间冷却器，旁通管和注入管。 切换机构被配置为在冷却和制热操作状态之间切换。 当切换机构切换到制冷运转状态以允许制冷剂流向热源侧热交换器时，进行用于使热源侧热交换器除霜的逆循环除霜运转时，使制冷剂流向 热源侧热交换器，中冷器和注射管。 检测到中间冷却器的除霜完成后，使用旁通管，以确保制冷剂不会流到中间冷却器，并且控制喷射阀以使开度增大。
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公开(公告)号：US20100242529A1
公开(公告)日：2010-09-30
申请号：US12744249
申请日：2008-11-26
CPC分类号： F25B9/008 , F25B1/10 , F25B13/00 , F25B31/004 , F25B2309/061 , F25B2400/072 , F25B2400/075 , F25B2400/13 , F25B2400/23
摘要： A refrigeration apparatus uses a refrigerant that operates in a supercritical range, and includes a compression mechanism, a heat source-side heat exchanger, an expansion mechanism, a usage-side heat exchanger, an intercooler and an intermediate oil separation mechanism. The compression mechanism has a plurality of compression elements, and is configured and arranged so that refrigerant discharged from a first-stage compression element is sequentially compressed by a second-stage compression element. The intercooler is configured and arranged to cool refrigerant flowing through an intermediate refrigerant tube that draws refrigerant discharged from the first-stage compression element into the second-stage compression element. The intermediate oil separation mechanism is configured and arranged to separate a refrigeration oil from the refrigerant discharged from the first-stage compression element. The intermediate oil separation mechanism is arranged at a section of the intermediate refrigerant tube between the first-stage compression element and an inlet of the intercooler.
摘要翻译： 制冷装置使用在超临界范围内工作的制冷剂，包括压缩机构，热源侧热交换器，膨胀机构，利用侧热交换器，中间冷却器和中间油分离机构。 压缩机构具有多个压缩元件，并且被构造和布置成使得从后级压缩元件排出的制冷剂被后级压缩元件依次压缩。 中间冷却器被构造和布置成冷却流过中间制冷剂管的制冷剂，所述中间制冷剂管将从后级压缩元件排出的制冷剂吸入后级压缩元件。 中间油分离机构被构造和布置成将冷冻机油从与前级压缩元件排出的制冷剂分离。 中间油分离机构设置在中间制冷剂管的中间冷却器的入口之间的中间制冷剂管的一段。
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公开(公告)号：US08327662B2
公开(公告)日：2012-12-11
申请号：US12744451
申请日：2008-11-27
申请人： Atsushi Yoshimi , Shuji Fujimoto
发明人： Atsushi Yoshimi , Shuji Fujimoto
IPC分类号： F25B1/10
CPC分类号： F25B13/00 , F25B1/10 , F25B9/008 , F25B2309/061 , F25B2313/0272 , F25B2313/02741 , F25B2400/075 , F25B2400/13 , F25B2400/23
摘要： A refrigeration apparatus uses a refrigerant that operates in a supercritical range. The refrigeration apparatus includes a compression mechanism, a heat source-side heat exchanger, an expansion mechanism, a usage-side heat exchanger, a switching mechanism, an intercooler, a bypass tube, and an injection tube. The switching mechanism is configured to switch between cooling and heating operation states. When the switching mechanism is switched to the cooling operation state to allow refrigerant to flow to the heat source-side heat exchanger and a reverse cycle defrosting operation for defrosting the heat source-side heat exchanger is performed, the refrigerant is caused to flow to the heat source-side heat exchanger, the intercooler and the injection tube. After the defrosting of the intercooler is detected as being complete, the bypass tube is used so as to ensure that the refrigerant does not flow to the intercooler and the injection valve is controlled so that the opening degree is increased.
摘要翻译： 制冷装置使用在超临界范围内工作的制冷剂。 制冷装置包括压缩机构，热源侧热交换器，膨胀机构，利用侧热交换器，切换机构，中间冷却器，旁通管和注入管。 切换机构被配置为在冷却和制热操作状态之间切换。 当切换机构切换到制冷运转状态以允许制冷剂流向热源侧热交换器时，进行用于使热源侧热交换器除霜的逆循环除霜运转时，使制冷剂流向 热源侧热交换器，中冷器和注射管。 检测到中间冷却器的除霜完成后，使用旁通管，以确保制冷剂不会流到中间冷却器，并且控制喷射阀以使开度增大。
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公开(公告)号：US20110048055A1
公开(公告)日：2011-03-03
申请号：US12990528
申请日：2009-04-30
申请人： Shuji Fujimoto , Atsushi Yoshimi
发明人： Shuji Fujimoto , Atsushi Yoshimi
CPC分类号： F25B1/10 , F25B13/00 , F25B45/00 , F25B2313/0272 , F25B2313/02741 , F25B2400/04 , F25B2400/072 , F25B2400/23
摘要： A refrigeration apparatus includes a multi-stage compression mechanism, heat source-side and usage side heat exchangers each operable as a radiator/evaporator, a switching mechanism switchable between cooling and heating operation states, a second-stage injection tube, an intermediate heat exchanger and an intermediate heat exchanger bypass tube. The intermediate heat exchanger bypass tube ensures that refrigerant discharged from the first-stage compression element and drawn into the second-stage compression element is not cooled by the intermediate heat exchanger during a heating operation. Injection rate optimization controls a flow rate of refrigerant returned to the second-stage compression element through the second-stage injection tube so that an injection ratio is greater during the heating operation than during a cooling operation. The injection ratio is a ratio of flow rate of the refrigerant returned to the second-stage compression element through the second-stage injection tube relative to flow rate of the refrigerant discharged from the compression mechanism.
摘要翻译： 一种制冷装置，包括多级压缩机构，能够作为散热器/蒸发器的热源侧和使用侧热交换器，能够在冷却和制热运转状态之间切换的切换机构，后级侧喷射管，中间热交换器 和中间热交换器旁通管。 中间热交换器旁通管确保在加热操作期间，中间热交换器不会冷却从后级侧压缩元件排出并被吸入后级侧压缩元件的制冷剂。 喷射速率优化控制通过后级喷射管返回到后级侧压缩元件的制冷剂的流量，使得在加热操作期间喷射比在冷却操作期间更大。 喷射比是相对于从压缩机构排出的制冷剂的流量，通过后级侧喷射管返回到后级侧压缩部件的制冷剂的流量比。
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