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17 条记录 (耗时 0.029 秒)

    Refrigeration system, and method of updating and operating the same
    14.
    发明授权
    Refrigeration system, and method of updating and operating the same 有权
    制冷系统及其更新和运行方法

    公开(公告)号：US06510698B2

    公开(公告)日：2003-01-28

    申请号：US09572300

    申请日：2000-05-17

    申请人： Tomohiko Kasai ,  Mitsunori Kurachi ,  Hidekazu Tani ,  Moriya Miyamoto ,  Yoshihiro Sumida ,  Takashi Ikeda ,  Toshihiro Kikukawa ,  Shohichiroh Masuda ,  Hirofumi Koge

    发明人： Tomohiko Kasai ,  Mitsunori Kurachi ,  Hidekazu Tani ,  Moriya Miyamoto ,  Yoshihiro Sumida ,  Takashi Ikeda ,  Toshihiro Kikukawa ,  Shohichiroh Masuda ,  Hirofumi Koge

    IPC分类号： F25B4500

    CPC分类号： F25B47/00 ,  F25B13/00 ,  F25B31/002 ,  F25B45/00 ,  F25B2313/023 ,  F25B2313/025 ,  F25B2313/0272 ,  F25B2313/02741 ,  F25B2400/18 ,  F25B2500/01

    摘要： A heat source unit and refrigerant used in an existing refrigeration system are replaced with new refrigerant and a new heat source unit which employs the new refrigerant and is equipped with an oil separator and extraneous-matter trapping device. An indoor unit of the existing refrigeration system may be used, in its present form, or replaced with a new indoor unit. Further, connecting pipes used for the existing refrigeration are reused. After replacement of refrigerant, the refrigeration system performs an ordinary operation after having performed a cleaning operation. The extraneous-matter trapping device is provided in a refrigerant pipe close to the heat source unit or in a bypass channel connected to the refrigerant pipe close to the heat source unit. Alternatively, only the heat source unit of the existing refrigeration system is replaced with a new one, and there is employed refrigeration oil which has no mutual solubility with respect to HFC or has very low mutual solubility.

    摘要翻译： 在现有的制冷系统中使用的热源单元和制冷剂被新的制冷剂和采用新的制冷剂的新的热源单元替换，并且配备有油分离器和外来物质捕集装置。 现有的制冷系统的室内单元可以以现在的形式使用，或者用新的室内单元替代。 此外，用于现有制冷的连接管被重复使用。 在更换制冷剂之后，在执行清洁操作之后，制冷系统进行常规操作。 外部物质捕集装置设置在靠近热源单元的制冷剂管道中或与靠近热源单元的制冷剂管道连接的旁通通道中。 或者，只有现有制冷系统的热源单元被新的替代，并且使用与HFC相互溶解性或相互溶解度非常低的冷冻机油。

    Air conditioning apparatus
    16.
    发明授权
    Air conditioning apparatus 失效

    公开(公告)号：US5063752A

    公开(公告)日：1991-11-12

    申请号：US593887

    申请日：1990-10-05

    申请人： Takashi Nakamura ,  Hidekazu Tani ,  Tomohiko Kasai

    发明人： Takashi Nakamura ,  Hidekazu Tani ,  Tomohiko Kasai

    IPC分类号： F25B29/00 ,  F24F3/06 ,  F24F11/08 ,  F25B13/00 ,  F25B41/04

    CPC分类号： F25B13/00 ,  F24F11/08 ,  F24F3/065 ,  F25B41/04 ,  F25B2313/006 ,  F25B2313/023 ,  F25B2313/0272 ,  F25B2400/05 ,  F25B2500/01

    摘要： An air conditioning apparatus comprises a single heat source device including a compressor, a reversing valve, an outdoor heat exchanger and an accumulator; a plurality of indoor units including indoor heat exchangers and first flow controllers; a first main pipe and a second main pipe for connecting between the heat source device and the indoor units, the first main pipe having a greater diameter than the second main pipe, a first branch joint which can selectively connect one end of the indoor heat exchanger of each indoor unit to either one of the first main pipe and the second main pipe; a second branch joint which is connected to the other end of the indoor heat exchanger of each indoor unit through the first flow controllers, and which is also connected to the second main pipe through a second flow controller; the first branch joint and the second branch joint being connected together through the second flow controller; a junction device which includes the first branch joint, the second flow controller and the second branch joint, and which is interposed between the heat source device and the indoor units; and a valve which is provided between the first main pipe and the second main pipe in the heat source device, and which can selectively switch the side of the first main pipe to lower pressure and the side of the second main pipe to higher pressure.

    Air conditioning apparatus
    17.
    发明授权
    Air conditioning apparatus 失效

    公开(公告)号：US4912937A

    公开(公告)日：1990-04-03

    申请号：US325143

    申请日：1989-03-17

    申请人： Takashi Nakamura ,  Kouji Ishikawa ,  Yoshinobu Igarashi ,  Hidekazu Tani

    发明人： Takashi Nakamura ,  Kouji Ishikawa ,  Yoshinobu Igarashi ,  Hidekazu Tani

    IPC分类号： F24F1/02 ,  F24F13/00 ,  F25B13/00 ,  F25B31/00 ,  F25B43/02

    CPC分类号： F25B13/00 ,  F24F1/022 ,  F24F13/00 ,  F25B31/004 ,  F25B43/02 ,  F25B2313/001 ,  F25B2313/02531 ,  F25B2313/02532 ,  F25B2313/02533 ,  F25B2600/2501

    摘要： An air conditioning apparatus comprises a switching valve for switching the flowing direction of a refrigerant discharged from a compressor to carry out either cooling operation, heating operation or defrosting operation; an outdoor heat exchanger for receiving the refrigerant supplied by the compressor through the switching valve to make the refrigerant heat exchange with air to be heat exchanged; an indoor heat exchanger for making the refrigerant heat exchange with a fluid to be heat exchanged; an oil separator which is arranged in a discharging side refrigerant pipe connecting the switching valve and the discharge port of the compressor to separate the refrigerant and a refrigerating machine oil which are discharged from the compressor; a first and second accumulators which are connected in series in an intake side refrigerant pipe connecting the switching valve and the intake port of the compressor; a first bypass passage for connecting the oil separator and the second accumulator through a solenoid valve; and a second bypass passage for connecting the oil separator and the intake port of the compressor through a metering device. As a result, the refrigeranting machine oil is returned to the compressor through the first bypass passage or the first and second bypass passages to prevent the compressor from failing due to shortage of the refrigeranting machine oil.