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公开(公告)号：EP1411308A3
公开(公告)日：2004-06-30
申请号：EP03019272.8
申请日：2003-08-26
CPC分类号： F25B9/06 , F25B1/10 , F25B9/008 , F25B13/00 , F25B2309/061 , F25B2313/0272 , F25B2313/02741 , F25B2313/02743
摘要： It is an object of the present invention to reduce the constraint that the density ratio is constant as small as possible, and to obtain high power recovering effect in a wide operation range. A refrigeration cycle apparatus uses carbon dioxide as refrigerant and has a compressor (1), an outdoor heat exchanger (3), an expander (6), an indoor heat exchanger (8) and an auxiliary compressor (10). The auxiliary compressor (10) is driven by power recover by the expander (6). When refrigerant flows using the indoor heat exchanger (8) as an evaporator, a discharge side of the auxiliary compressor (10) becomes a suction side of the compressor (1), and when refrigerant flows using the indoor heat exchanger (8) as a gas cooler, a discharge side of the compressor (1) becomes a suction side of the auxiliary compressor (10).
摘要翻译： 本发明的一个目的是减小密度比尽可能小的限制，并在宽工作范围内获得高功率恢复效果。 制冷循环装置使用二氧化碳作为制冷剂，具有压缩机（1），室外热交换器（3），膨胀机（6），室内热交换器（8）和辅助压缩机（10）。 辅助压缩机10由膨胀机6的动力回收驱动。 当利用室内热交换器8作为蒸发器使制冷剂流动时，辅助压缩机10的排出侧成为压缩机1的吸入侧，在利用室内热交换器8作为制冷剂流动的情况下 气体冷却器，压缩机（1）的排出侧成为辅助压缩机（10）的吸入侧。
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公开(公告)号：EP1365152B1
公开(公告)日：2007-02-07
申请号：EP03011563.8
申请日：2003-05-21
CPC分类号： F04C29/028 , F04C18/0215 , F04C29/0007 , F04C2210/1027 , F04C2210/1072 , F04C2210/14 , F04C2210/142 , F04C2210/145 , F04C2210/261
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公开(公告)号：EP1416231A1
公开(公告)日：2004-05-06
申请号：EP03019372.6
申请日：2003-08-27
CPC分类号： F25B9/06 , F25B1/10 , F25B9/008 , F25B13/00 , F25B2309/061
摘要： It is an object of the present invention to reduce the constraint that the density ratio is constant as small as possible, and to obtain high power recovering effect in a wide operation range. A refrigeration cycle apparatus uses carbon dioxide as refrigerant and has a compressor, an outdoor heat exchanger, an expander and an indoor heat exchanger. An injection circuit for introducing high pressure refrigerant is provided in a halfway of an expansion process of said expander.
摘要翻译： 本发明的一个目的是减小密度比尽可能小的限制，并在宽工作范围内获得高功率恢复效果。 制冷循环装置使用二氧化碳作为制冷剂并具有压缩机，室外热交换器，膨胀机和室内热交换器。 在所述膨胀机的膨胀过程的中途提供用于引入高压制冷剂的注入回路。
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公开(公告)号：EP1416231B1
公开(公告)日：2008-05-14
申请号：EP03019372.6
申请日：2003-08-27
CPC分类号： F25B9/06 , F25B1/10 , F25B9/008 , F25B13/00 , F25B2309/061
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公开(公告)号：EP1365152A1
公开(公告)日：2003-11-26
申请号：EP03011563.8
申请日：2003-05-21
CPC分类号： F04C29/028 , F04C18/0215 , F04C29/0007 , F04C2210/1027 , F04C2210/1072 , F04C2210/14 , F04C2210/142 , F04C2210/145 , F04C2210/261
摘要： According to a scroll compressor of the present invention, lubricant is supplied to a compression chamber in the proportions of 2% by weight or more and less than 20% by weight of the lubricant to the sucked refrigerant amount. With this, it is possible to provide an efficient scroll compressor even when carbon dioxide is used as the refrigerant.
摘要翻译： 根据本发明的涡旋压缩机，润滑剂以比例为2重量％以上且低于润滑剂的20重量％的比例被供给至吸入制冷剂量。 由此，即使使用二氧化碳作为制冷剂，也可以提供有效的涡旋压缩机。
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公开(公告)号：EP1411308B1
公开(公告)日：2008-08-06
申请号：EP03019272.8
申请日：2003-08-26
CPC分类号： F25B9/06 , F25B1/10 , F25B9/008 , F25B13/00 , F25B2309/061 , F25B2313/0272 , F25B2313/02741 , F25B2313/02743
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公开(公告)号：EP1416232A1
公开(公告)日：2004-05-06
申请号：EP03019373.4
申请日：2003-08-27
CPC分类号： F25B9/008 , F25B9/06 , F25B13/00 , F25B40/00 , F25B2309/061 , F25B2400/04 , F25B2600/17 , F25B2600/2501
摘要： It is an object of the present invention to reduce the constraint that the density ratio is constant as small as possible, and to obtain high power recovering effect in a wide operation range by using an expander which is operated in accordance with a flowing direction of refrigerant. A determining method of a high pressure of a refrigeration cycle apparatus in which a refrigeration cycle uses carbon dioxide as refrigerant and has a compressor, an outdoor heat exchanger, an expander and an indoor heat exchanger, and the refrigeration cycle including a bypass circuit provided in parallel to said expander, and a control valve which adjusts a flow rate of refrigerant flowing through said bypass circuit, said compressor being driven by power recover by said expander, wherein if an optimal high pressure of a first refrigeration cycle flowing through said expander and a second refrigeration cycle flowing through said bypass circuit is defined as Ph, and a bypass amount ratio flowing through said bypass circuit in said Ph is defined as Rb0, and a maximum refrigeration cycle efficiency of said first refrigeration cycle in said Ph is defined as COPe, and a maximum refrigeration cycle efficiency of said second refrigeration cycle in said Ph is defined as COPb, the optimal high pressure Ph which maximizes (1-Rb0)×COPe+Rb0×COPb is determined.
摘要翻译： 本发明的一个目的是通过使用根据制冷剂的流动方向操作的膨胀器来减小密度比尽可能小的限制，并且在宽操作范围内获得高动力回收效果 。 一种制冷循环装置的高压判定方法，其中制冷循环使用二氧化碳作为制冷剂并具有压缩机，室外热交换器，膨胀机和室内热交换器，以及包括旁路回路的制冷循环 平行于所述膨胀器的控制阀，以及调节流过所述旁通回路的制冷剂的流量的控制阀，所述压缩机由所述膨胀机回收的能量驱动，其中，如果流经所述膨胀机的第一制冷循环的最佳高压和 流经所述旁通回路的第二制冷循环定义为Ph，所述Ph中流经所述旁通回路的旁通量比率定义为Rb0，所述Ph中所述第一制冷循环的最大制冷循环效率定义为COPe， 并且所述第二制冷循环在所述Ph中的最大制冷循环效率定义为COPb， 确定使（1-Rb0）×COPe + Rb0×COPb最大的h压力Ph。
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公开(公告)号：EP1411309A3
公开(公告)日：2004-04-28
申请号：EP03019374.2
申请日：2003-08-27
发明人： Hiwata, Akira , Iida, Noboru
CPC分类号： F04C23/003 , F01C1/3442 , F01C11/004 , F01C21/0863 , F04C18/3442 , F04C2210/261 , F25B1/10 , F25B9/008 , F25B9/06 , F25B13/00 , F25B2309/061 , F25B2400/04
摘要： It is an object of the present invention to reduce the constraint that the density ratio is constant as small as possible, and to obtain high power recovering effect in a wide operation range by using an expander which is operated in accordance with a flowing direction of refrigerant. An expander used in a refrigeration cycle uses carbon dioxide as refrigerant and has a compressor, an outdoor heat exchanger and an indoor heat exchanger. The expander comprises a cylindrical cylinder, a rotor which rotates in the cylinder, a vane which divides an expansion space formed between an inner peripheral surface of the cylinder and an outer peripheral surface of the rotor into a plurality of spaces, and a vane groove provided in the rotor for accommodating the vane therein. The vane groove is provided with a back pressure chamber which pushes the vane against the inner peripheral surface of the cylinder, and the refrigerant in the supercritical state is introduced into the back pressure chamber.
摘要翻译： 本发明的一个目的是通过使用根据制冷剂的流动方向操作的膨胀器来减小密度比尽可能小的限制，并且在宽操作范围内获得高动力回收效果 。 用于制冷循环的膨胀机使用二氧化碳作为制冷剂并具有压缩机，室外热交换器和室内热交换器。 膨胀机包括：圆筒状的气缸;在气缸内旋转的转子;将在气缸的内周面与转子的外周面之间形成的膨胀空间分隔成多个空间的翼;设置有叶片槽 在用于容纳叶片的转子中。 叶片槽设置有背压室，该背压室将叶片推向缸体的内周表面，并且超临界状态的制冷剂被引入背压室中。
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公开(公告)号：EP1411309A2
公开(公告)日：2004-04-21
申请号：EP03019374.2
申请日：2003-08-27
发明人： Hiwata, Akira , Iida, Noboru
CPC分类号： F04C23/003 , F01C1/3442 , F01C11/004 , F01C21/0863 , F04C18/3442 , F04C2210/261 , F25B1/10 , F25B9/008 , F25B9/06 , F25B13/00 , F25B2309/061 , F25B2400/04
摘要： It is an object of the present invention to reduce the constraint that the density ratio is constant as small as possible, and to obtain high power recovering effect in a wide operation range by using an expander which is operated in accordance with a flowing direction of refrigerant. An expander used in a refrigeration cycle uses carbon dioxide as refrigerant and has a compressor, an outdoor heat exchanger and an indoor heat exchanger. The expander comprises a cylindrical cylinder, a rotor which rotates in the cylinder, a vane which divides an expansion space formed between an inner peripheral surface of the cylinder and an outer peripheral surface of the rotor into a plurality of spaces, and a vane groove provided in the rotor for accommodating the vane therein. The vane groove is provided with a back pressure chamber which pushes the vane against the inner peripheral surface of the cylinder, and the refrigerant in the supercritical state is introduced into the back pressure chamber.
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公开(公告)号：EP1411308A2
公开(公告)日：2004-04-21
申请号：EP03019272.8
申请日：2003-08-26
CPC分类号： F25B9/06 , F25B1/10 , F25B9/008 , F25B13/00 , F25B2309/061 , F25B2313/0272 , F25B2313/02741 , F25B2313/02743
摘要： It is an object of the present invention to reduce the constraint that the density ratio is constant as small as possible, and to obtain high power recovering effect in a wide operation range. A refrigeration cycle apparatus uses carbon dioxide as refrigerant and has a compressor (1), an outdoor heat exchanger (3), an expander (6), an indoor heat exchanger (8) and an auxiliary compressor (10). The auxiliary compressor (10) is driven by power recover by the expander (6). When refrigerant flows using the indoor heat exchanger (8) as an evaporator, a discharge side of the auxiliary compressor (10) becomes a suction side of the compressor (1), and when refrigerant flows using the indoor heat exchanger (8) as a gas cooler, a discharge side of the compressor (1) becomes a suction side of the auxiliary compressor (10).
摘要翻译： 本发明的目的是减小密度比恒定的约束尽可能小，并且在宽的操作范围内获得高功率恢复效果。 制冷循环装置使用二氧化碳作为制冷剂，具有压缩机（1），室外热交换器（3），膨胀机（6），室内热交换器（8）和辅助压缩机（10）。 辅助压缩机（10）由膨胀机（6）恢复动力驱动。 当制冷剂使用室内热交换器（8）作为蒸发器流动时，辅助压缩机（10）的排出侧成为压缩机（1）的吸入侧，并且当制冷剂使用室内热交换器（8）作为 气体冷却器，压缩机（1）的排出侧成为辅助压缩机（10）的吸入侧。
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