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    Refrigeration system, and method of updating and operating the same
    21.
    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

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

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

    IPC: F25B4500

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

    Abstract: 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.

    Abstract translation: 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 conditioner
    23.
    发明授权
    Air conditioner 失效
    冷气机

    公开(公告)号：US6023935A

    公开(公告)日：2000-02-15

    申请号：US188234

    申请日：1998-11-09

    Applicant: Takashi Okazaki ,  Yoshihiro Sumida ,  Akihiro Matsushita ,  Itsutarou Akiyama ,  Yasunori Shida ,  Akio Fukushima

    Inventor： Takashi Okazaki ,  Yoshihiro Sumida ,  Akihiro Matsushita ,  Itsutarou Akiyama ,  Yasunori Shida ,  Akio Fukushima

    IPC: F25B1/00 ,  F25B1/04 ,  F25B25/00 ,  F25B39/04 ,  F25B41/00 ,  F25D15/00

    CPC classification number: F25B25/00 ,  F25B39/04 ,  F25B41/00 ,  F25B2400/0401 ,  F25B2400/0411 ,  Y10S62/22

    Abstract: An air conditioner has a refrigeration circuit formed by sequentially connecting a compressor 1, a condenser 2, an electronic expansion valve 4 and an evaporator 7 by pipes (6, 10). A compressor bypass pipe 12 is provided to connect an outlet of the evaporator 7 with an inlet of the condenser 2. A first on-off valve 11 is located in the bypass pipe 12. The air conditioner is controlled to switch to either a forced circulation operation or a natural circulation operation. In the forced circulation operation, the first on-off valve 11 is closed, the expansion valve 4 is opened to a first degree to allow refrigerant to pass therethrough, and the compressor 1 is operated in a running state. In the natural circulation operation, the first on-off valve 11 is opened, the expansion valve 4 is opened to a second degree, different from the first degree, to allow refrigerant to pass therethrough, and the compressor 1 is stopped.

    Abstract translation: 空调器具有通过管道（6,10）依次连接压缩机1，冷凝器2，电子膨胀阀4和蒸发器7而形成的制冷回路。 压缩机旁通管12设置成将蒸发器7的出口与冷凝器2的入口相连接。第一开关阀11位于旁通管12中。空调被控制以切换到强制循环 操作或自然循环操作。 在强制循环运转中，第一开关阀11关闭，膨胀阀4打开第一程度，使制冷剂通过，压缩机1在运转状态下运转。 在自然循环动作中，第一开闭阀11打开，膨胀阀4与第一程度不同的第二程度打开，允许制冷剂通过，压缩机1停止。

    Refrigerating and air-conditioning apparatus and method of determining refrigerant composition of refrigerating and air-conditioning apparatus
    24.
    发明授权
    Refrigerating and air-conditioning apparatus and method of determining refrigerant composition of refrigerating and air-conditioning apparatus 失效
    制冷空调装置及制冷空调装置制冷剂组成的确定方法

    公开(公告)号：US5996358A

    公开(公告)日：1999-12-07

    申请号：US84505

    申请日：1998-05-27

    Applicant: Yoshihiro Sumida ,  Takashi Okazaki ,  Tomohiko Kasai ,  Osamu Morimoto ,  Yoshio Ueno

    Inventor： Yoshihiro Sumida ,  Takashi Okazaki ,  Tomohiko Kasai ,  Osamu Morimoto ,  Yoshio Ueno

    IPC: F25B1/00 ,  C09K5/04 ,  F25B9/00 ,  F25B49/02

    CPC classification number: C09K5/045 ,  F25B9/006 ,  C09K2205/22 ,  C09K2205/34

    Abstract: In the detection of circulating compositions in the cycle of a non-azeotropic refrigerant composed of three or more kinds of refrigerants, there have been drawbacks in that the number of sensors required is large, and large errors are contained in the circulating composition which can be detected. To overcome these drawbacks, the refrigerating and air-conditioning apparatus comprises at least a compressor, a condenser, a pressure reducing device, and an evaporator, and in a refrigerant cycle which uses as a working refrigerant a non-azeotropic refrigerant composed of N kinds (N.gtoreq.3) of refrigerants and is provided with composition detecting means for detecting the circulating compositions of the non-azeotropic refrigerant, circulating compositions are determined by using (N-2) relations on compositions among a first component to a j-th (2.ltoreq.j.ltoreq.N-1) component of the non-azeotropic refrigerant.

    Abstract translation: 在由三种或更多种制冷剂组成的非共沸混合制剂的循环中的循环组成的检测中，存在所需传感器数量大，缺点在循环组合物中的误差大， 检测到。 为了克服这些缺点，制冷空调装置至少包括压缩机，冷凝器，减压装置和蒸发器，并且在作为工作制冷剂的制冷剂循环中使用由N种组成的非共沸混合制冷剂 （N> / = 3），并且设置有用于检测非共沸混合致冷剂的循环组成的组成检测装置，循环组合物通过使用第（N-3）组分与第j- （2）=（1）式中，n为非共沸混合制冷剂。

    Refrigerating cycle
    26.
    发明授权
    Refrigerating cycle 失效
    制冷循环

    公开(公告)号：US5517824A

    公开(公告)日：1996-05-21

    申请号：US267906

    申请日：1994-07-06

    Applicant: Hiroshige Konishi ,  Susumu Kawaguchi ,  Hitoshi Maruyama ,  Yoshihiro Sumida

    Inventor： Hiroshige Konishi ,  Susumu Kawaguchi ,  Hitoshi Maruyama ,  Yoshihiro Sumida

    IPC: F25B1/00 ,  F04B39/02 ,  F04C29/02 ,  F25B31/00 ,  F25B41/00 ,  F25B43/02 ,  G10F1/12

    CPC classification number: F25B31/004 ,  F04B39/0215 ,  F04C29/02 ,  F25B31/002 ,  F04C2210/26 ,  F05B2210/14 ,  F25B2500/01

    Abstract: In a refrigerating cycle using a refrigerant containing hydrofluorocarbon as a main component, of a refrigerant pipe arrangement constituting the refrigerating cycle, a refrigerant pipe extending upward from a lower side to an upper side is made to have an inner diameter not larger than a value which makes the flow rate of the refrigerant be not smaller than a zero penetration flow rate. It is possible to obtain a refrigerating cycle superior in oil returning to a compressor and hence high in reliability, even in the case of using refrigerator oil having no compatibility with a refrigerant containing hydrofluorocarbon as a main component.

    Abstract translation: 在使用含有氢氟烃作为主要成分的制冷剂的制冷循环中，构成制冷循环的制冷剂配管的制冷剂配管的内径不大于从下侧向上侧延伸的制冷剂管的内径， 使制冷剂的流量不小于零渗透流量。 即使在使用与含有氢氟烃作为主要成分的制冷剂不相容的冷冻机的情况下，也能够获得油返回压缩机的制冷循环优异的可靠性。

    Refrigerant circulating system
    29.
    发明授权
    Refrigerant circulating system 失效
    制冷循环系统

    公开(公告)号：US5737931A

    公开(公告)日：1998-04-14

    申请号：US668155

    申请日：1996-06-21

    Applicant: Yoshio Ueno ,  Osamu Morimoto ,  Tomohiko Kasai ,  Yoshihiro Sumida

    Inventor： Yoshio Ueno ,  Osamu Morimoto ,  Tomohiko Kasai ,  Yoshihiro Sumida

    IPC: F25B1/00 ,  F25B9/00 ,  F25B13/00 ,  F25B41/04

    CPC classification number: F25B9/006 ,  F25B13/00 ,  F25B2313/023 ,  F25B2313/0294 ,  F25B2313/0314 ,  F25B2341/0661 ,  F25B2400/08 ,  F25B2600/02 ,  F25B2600/2513 ,  F25B2700/1931

    Abstract: A refrigerant circulating system using non-azeothropic mixture as refrigerant, which comprises: a main refrigerant circuit connected by a compressor, a fore-way valve, an outdoor heat-exchanger, a first throttling device, a plurality of indoor heat-exchangers, and a low-pressure receiver; a bypass circuit diverging from the discharge portion of the compressor, and extending through a composition detecting heat-exchanger and a second throttling device to a low-pressure portion; an outdoor fun attendant of the outdoor heat-exchanger; first temperature detector to detect a refrigerant temperature at the upstream of the second throttling device; second temperature detector to detect a refrigerant temperature at the downstream of the second throttling device; first pressure detector to detect a pressure at the downstream of the second throttling device; third temperature detector to detect temperature in the main circuit between the first throttling device and the indoor heat-exchanger; forth temperature detector to detect temperature at the low-pressure portion; second pressure detector to detect the pressure at the high-pressure portion; a composition calculating device for calculating the composition of the mixture refrigerant; a main controller for controlling the number of rotation of the compressor and the number of rotation of an outdoor fun; a throttle controller for controlling the opening of the first throttling device.

    Abstract translation: 一种使用非旋风混合物作为制冷剂的制冷剂循环系统，包括：通过压缩机，前置阀，室外热交换器，第一节流装置，多个室内热交换器连接的主制冷剂回路，以及 低压接收器; 从压缩机的排出部分分流的旁路回路，通过组分检测热交换器和第二节流装置延伸到低压部分; 室外热交换器的户外乐趣服务员; 第一温度检测器，用于检测第二节流装置上游的制冷剂温度; 第二温度检测器，用于检测第二节流装置下游的制冷剂温度; 第一压力检测器，用于检测第二节流装置下游的压力; 第三温度检测器，用于检测第一节流装置和室内热交换器之间的主回路中的温度; 检测低压部分的温度; 第二压力检测器，用于检测高压部分的压力; 用于计算混合制冷剂的组成的组成计算装置; 用于控制压缩机的旋转次数和户外乐趣的旋转次数的主控制器; 用于控制第一节流装置的打开的节气门控制器。

    Method of producing a plate-type heat exchanger
    30.
    发明授权
    Method of producing a plate-type heat exchanger 失效
    板式热交换器的制造方法

    公开(公告)号：US5644840A

    公开(公告)日：1997-07-08

    申请号：US422171

    申请日：1995-04-14

    Applicant: Youichi Hisamori ,  Mitunori Kurachi ,  Masaaki Taniguchi ,  Tutomu Noma ,  Masao Kohashi ,  Yoshihiro Sumida

    Inventor： Youichi Hisamori ,  Mitunori Kurachi ,  Masaaki Taniguchi ,  Tutomu Noma ,  Masao Kohashi ,  Yoshihiro Sumida

    IPC: F28D9/00 ,  F28F3/08 ,  F28F3/12 ,  F28F9/04 ,  F28F9/26 ,  F28F19/00 ,  F28F21/08 ,  B23P15/26

    CPC classification number: F28D9/0075 ,  F28D9/005 ,  F28F19/004 ,  F28F21/082 ,  F28F21/085 ,  F28F9/0246 ,  Y10S165/905 ,  Y10T29/49373 ,  Y10T29/49393

    Abstract: To eliminate a fear of electrolytic corrosion even in the case where a heat exchanger to be connected to the outside of the plate-type heat exchanger has a copper piping, and to prevent any damage from being given to the brazed portions of the plate-type heat exchanger at the time of joining pipes and to prevent faults from being generated in joined portions. An intermediate pipe made of a material in which the value of polarization potential becomes lower than that generated between a body of the plate-type heat exchanger and the copper piping is interposed between the plate-type heat exchanger body and the copper piping. Further, the plate-type heat exchanger body is disposed in a position out of a vertical line of a joined portion between the copper piping and the intermediate pipe. Further, a joint constituted by an intermediate pipe and a copper pipe joined in advance through brazing or welding at a temperature higher than a temperature of brazing of the plate-type heat exchanger body is brazed at the same time of brazing of the plate-type heat exchanger body under the condition that the joint is arranged so that the intermediate pipe side of the joint is joined with the end plate of the heat exchanger body.

    Abstract translation: 为了消除电解腐蚀的恐惧，即使在与板式热交换器的外部连接的热交换器具有铜管道的情况下，并且为了防止对板式热交换器的钎焊部分造成任何损坏 在连接管道时的热交换器，并且防止在接合部分中产生故障。 由板式热交换器主体和铜管之间插入由极板电位值低于板式热交换器的主体与铜管之间的极化电位值的材料构成的中间管。 此外，板式热交换器体设置在铜管和中间管之间的接合部的垂直线以外的位置。 此外，在板式热交换器主体的钎焊温度以上的温度下通过钎焊或焊接预先接合的中间管和铜管构成的接头在与板式热交换器的钎焊同时进行钎焊 热交换器主体在接头被布置成使得接头的中间管侧与热交换器主体的端板接合的条件下进行。

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