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公开(公告)号：US4840042A
公开(公告)日：1989-06-20
申请号：US226084
申请日：1988-07-29
申请人： Mitsuhiro Ikoma , Kazuo Nakatani , Yuji Yoshida , Takeshi Tomizawa , Koji Arita
发明人： Mitsuhiro Ikoma , Kazuo Nakatani , Yuji Yoshida , Takeshi Tomizawa , Koji Arita
CPC分类号： F25B9/006 , F25B13/00 , F25B2341/0014
摘要： A heat pump system which comprises a main heat pump circuit filled with non-azeotropic mixed coolant and including a compressor, a utility-side heat exchanger, a throttling device, a source-side heat exchanger, etc.,; a fractionating separator having an upper end fluid-connected with an exit side of the utility-side heat exchanger; a reservoir disposed beneath the fractionating separator and having a bottom fluid-connected through a shut-off valve with a low pressure piping on an inlet side of either the source-side heat exchanger or the utility-side heat exchanger; and a coolant ejector disposed between the compressor and the utility-side heat exchanger, wherein a gaseous medium generated from the fractionating separator when the reservoir is heated is guided to a suction port of the coolant ejector to flow into the main heat pump circuit.
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公开(公告)号：US5012651A
公开(公告)日：1991-05-07
申请号：US457234
申请日：1989-12-26
申请人： Kazuo Nakatani , Mitsuhiro Ikoma , Yuji Yoshida , Takeshi Tomizawa , Koji Arita , Minoru Tagashira
发明人： Kazuo Nakatani , Mitsuhiro Ikoma , Yuji Yoshida , Takeshi Tomizawa , Koji Arita , Minoru Tagashira
摘要： The structure is arranged in such a manner that nonazeotropic mixed refrigerant is enclosed therein and a fractioning/separating device is disposed in a low pressure circuit in the main circuit of refrigerating cycle so as to conduct separation operation, the fraction/separation can be conducted at a low pressure in a separation mode, the specific volume of refrigerant gas generated in a reservoir due to heat supplied from a heater is enlarged, and the velocity of gas which moves upwards in the fractioning/separating device can be increased, causing a gas-liquid contact to be promoted. As a result, high performance separation can be conducted at reduced quantity of heat, causing the density of high boiling point refrigerant reserved to be significantly raised. Thus, the composition in the main circuit becomes a composition enriched with low boiling point refrigerant exhibiting excellent heating performance so as to satisfactorily cope with an increase in the load.
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公开(公告)号：US5470496A
公开(公告)日：1995-11-28
申请号：US247400
申请日：1994-05-23
IPC分类号： C09K5/04
CPC分类号： C09K5/045 , C09K2205/122
摘要： A working fluid containing chlorotetrafluoroethane and at least two fluorinated hydrocarbons having a boiling point of not higher than -40.degree. C. under atmospheric pressure selected from the group consisting of methane derivatives and ethane derivatives which consist of one or two carbon atoms, hydrogen atoms and fluorine atoms, which has very small influence on the ozone layer in the stratosphere and decreased flammability and is suitable as a substitute working fluid for chlorodifluoromethane.
摘要翻译： 包含氯四氟乙烷和至少两种沸点不高于-40℃的氟化烃的工作流体，所述氟化烃在大气压下选自甲烷衍生物和由一个或两个碳原子组成的乙烷衍生物，氢原子和 氟原子对平流层臭氧层的影响非常小，可燃性降低，适用于氯二氟甲烷的替代工作流体。
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4.发明授权Heat pump with a reservoir storing higher pressure refrigerant of non-azeotropic mixture 失效具有存储非共沸混合物的高压制冷剂的储存器的热泵
公开(公告)号：US4722195A
公开(公告)日：1988-02-02
申请号：US844065
申请日：1986-03-25
申请人： Shigeo Suzuki , Yuji Yoshida , Kazuo Nakatani , Yuji Mukai
发明人： Shigeo Suzuki , Yuji Yoshida , Kazuo Nakatani , Yuji Mukai
CPC分类号： F25B45/00 , F25B13/00 , F25B9/006 , F25B2400/16
摘要： Disclosed is a heat pump comprising a main circuit containing a mixture of non-azeotropic refrigerants, the main circuit including a compressor for pressurizing the mixture, a first heat exchanger operating as a heat sink, a second heat exchanger operating as a heat source, and an expansion device connected between the first and second heat exchangers. A portion of the mixture is supplied through a first feed line from a first junction between the expansion valve and the first heat exchanger and vaporized before being fed to a rectifier where it coacts with liquid refrigerant to cause separation of higher pressure refrigerant of the mixture from the lower pressure refrigerant. The separated higher pressure refrigerant is stored in a reservoir in liquid phase and an overflowed portion of the liquid is returned to the rectifier as said coacting liquid. A second feed line couples a second junction between the expansion device and the second heat exchanger to a bottom portion of the rectifier to complete an auxiliary circuit. A bypass line is established from the bottom portion of reservoir to the second junction accordance with input power demand to control the operation of the rectifier.
摘要翻译： 公开了一种热泵，其包括含有非共沸冷冻剂的混合物的主回路，该主回路包括用于对混合物进行加压的压缩机，作为散热器操作的第一热交换器，作为热源操作的第二热交换器，以及 连接在第一和第二热交换器之间的膨胀装置。 混合物的一部分通过第一进料管线从膨胀阀和第一热交换器之间的第一连接点供应，并在进料到整流器之前蒸发，在该整流器中，其与液体制冷剂共同作用，以使混合物中的高压制冷剂从 低压制冷剂。 分离的较高压力的制冷剂被储存在液相中，并且液体的溢出部分作为所述共同作用液体返回到整流器。 第二馈线将膨胀装置和第二热交换器之间的第二连接点连接到整流器的底部以完成辅助电路。 根据输入功率需求，从储存器的底部到第二结点建立旁路管线以控制整流器的操作。
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公开(公告)号：US4679403A
公开(公告)日：1987-07-14
申请号：US772887
申请日：1985-09-05
申请人： Yuji Yoshida , Shigeo Suzuki , Kazuo Nakatani , Yuji Mukai , Akira Nakazawa , Takumi Imoto
发明人： Yuji Yoshida , Shigeo Suzuki , Kazuo Nakatani , Yuji Mukai , Akira Nakazawa , Takumi Imoto
CPC分类号： F25B9/006 , F25B49/025 , F25B2600/021 , Y02B30/741
摘要： A heat pump apparatus is provided with a multiple-constituent refrigerant mixture which includes a major constituent refrigerant which is above 50% by weight of total refrigerant enclosed in the refrigerating circuit provided with a variable frequency compressor, and a minor constituent refrigerant which has lower critical pressure than that of the major constituent refrigerant.
摘要翻译： 一种热泵装置具有多组分制冷剂混合物，其包括主要成分制冷剂，该主要组分制冷剂占设置在可变频率压缩机的制冷回路中的总制冷剂的50％重量以下，并且具有较低临界压力的次要组成制冷剂 压力高于主要制冷剂。
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公开(公告)号：US6156224A
公开(公告)日：2000-12-05
申请号：US073473
申请日：1993-06-09
IPC分类号： C09K5/04
CPC分类号： C09K5/045 , C09K2205/11 , C09K2205/112 , C09K2205/43
摘要： A mixed working fluid having almost no influence on stratosphere ozone layer and capable of being a substitute for R22, comprising 15 to 90% by weight perfluorodimethylether and one or two selected from fluorinated dimethylethers consisting of exclusively two carbon atoms, one oxygen atom, hydrogen atoms and fluorine atoms, said fluorodimethylether being selected from the group consisting of 85% by weight or less pentafluorodimethylether, 50% by weight of less dimethylether, 60% by weight or less trifluorodimethylether, 60% by weight of less tetrafluorodimethylether, and 50% by weight or less difluorodimethylether.
摘要翻译： 对平流层臭氧层几乎没有影响并且能够代替R22的混合工作流体，其包含15至90重量％的全氟二甲基醚和选自由两个碳原子组成的氟化二甲醚中的一个或两个，一个氧原子，氢原子 和氟原子，所述氟代二甲基醚选自85重量％或更少的五氟二甲基醚，50重量％的较少的二甲醚，60重量％或更少的三氟代甲基醚，60重量％的较少的四氟二甲基醚和50重量％ 或更少的二氟二甲醚。
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公开(公告)号：US5186011A
公开(公告)日：1993-02-16
申请号：US836430
申请日：1992-02-18
CPC分类号： F25B1/10 , F25B40/00 , F25B9/006 , F25B2400/13 , F25B2400/23
摘要： A refrigerant cycling apparatus, enclosing a non-azeotropic mixture including a low-boiling point refrigerant and a low-boiling point refrigerant, includes: a first compressor; a second compressor, a suction pipe of which is connected with a discharge pipe of the first compressor; a fractionating/separating device, the discharge pipe of the first compressor being connected with one of a top portion and a middle portion of the fractionating/separating device, the suction pipe of the first compressor being connected with the top portion of the fractionating/separating device, the discharge pipe of the second compressor being connected with one of the middle portion and a bottom portion of the fractionating/separating device, the suction pipe of the second compressor being connected with the bottom portion of the fractionating/separating device; a first pressure reducing device provided between the top portion of the fractionating/separating device and the suction pipe of the first compressor; a first vaporizing device provided between the first pressure reducing device and the suction pipe of the first compressor to vaporize the refrigerant; a second pressure reducing device provided between the discharge pipe of the second compressor and the fractionating/separating device; and a first condensing device provided between the second pressure reducing device and the suction pipe of the second compressor to condense the refrigerant.
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公开(公告)号：US5899943A
公开(公告)日：1999-05-04
申请号：US909960
申请日：1997-08-12
CPC分类号： A61F2/64 , A61F2/68 , A61F2002/30024 , A61F2002/30393 , A61F2002/5003 , A61F2002/5007 , A61F2002/503 , A61F2002/5039 , A61F2002/5072 , A61F2002/5087 , A61F2002/6818 , A61F2002/745 , A61F2002/747 , A61F2220/0025 , A61F2250/0021
摘要： Paying attention to the mechanical play between the first and second support members for supporting opposite end portions of a knee axis and a brake block located between the support members, the present invention chiefly aims at removing the play in the direction of an axis of the knee axis in an effective and a reliable manner. In order to achieve this object, according to the present invention, a plurality of spacer members are inserted between each support member and the brake block such that the spacer members may slide on the mutual abutment surface. Each spacer member is of a ring type. The spacer members are fitted to and supported by the knee axis in a state that the spacer members are overlaid one upon another in the axial direction of the knee axis. In order to enhance the smooth sliding on the abutment surface, the spacer members are preferably made of resin material. In order to enhance the smoother sliding, at least one spacer member having the abutment surface is more preferably made of resin of low friction, such as oil-contained resin or phenol resin. The remaining spacer member contacting the resin of low friction may be made of such resin as polyacetal, polyamide and tetraethylene fluoride. Most preferably, one spacer member is made of oil-contained polyacetal resin which is especially excellent in low friction, and the remaining spacer contacting the first-mentioned spacer member is made of non-oil contained polyacetal resin.
摘要翻译： 注意第一支撑构件和第二支撑构件之间的机械作用，用于支撑膝部轴线的相对端部和位于支撑构件之间的制动块，本发明主要旨在消除膝盖的轴线方向上的游隙 轴以有效和可靠的方式。 为了实现这一目的，根据本发明，在每个支撑构件和制动块之间插入多个间隔构件，使得间隔构件可以在相互邻接表面上滑动。 每个间隔件是环形的。 隔离构件在膝部轴线的轴向上彼此重叠的状态下装配并由膝部轴线支撑。 为了增强邻接表面上的平滑滑动，间隔件优选由树脂材料制成。 为了增强更平滑的滑动，至少一个具有邻接表面的间隔件更优选地由低摩擦的树脂制成，例如含油树脂或酚醛树脂。 与低摩擦树脂接触的剩余间隔件可以由聚缩醛，聚酰胺和四氟化乙烯等树脂制成。 最优选地，一个间隔件由具有特别优异的低摩擦性的含油聚缩醛树脂制成，并且与第一个间隔件接触的剩余间隔物由非油包含的聚缩醛树脂制成。
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公开(公告)号：USRE43312E1
公开(公告)日：2012-04-17
申请号：US11785569
申请日：2007-04-18
申请人： Kazuo Nakatani , Yoshikazu Kawabe , Yuji Inoue , Noriho Okaza , Akira Hiwata
发明人： Kazuo Nakatani , Yoshikazu Kawabe , Yuji Inoue , Noriho Okaza , Akira Hiwata
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 evaporator, an expander and an indoor heat exchanger a radiator. 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恒定的约束尽可能的小，并且在宽的操作范围内获得高功率回收效果。 制冷循环装置使用二氧化碳作为制冷剂，并具有压缩机，室外热交换器蒸发器，膨胀机和室内热交换器。 在所述膨胀机的膨胀过程的中途设置有用于引入高压制冷剂的注入回路。
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公开(公告)号：US20060260354A1
公开(公告)日：2006-11-23
申请号：US11410305
申请日：2006-04-25
申请人： Kazuo Nakatani , Noriho Okaza , Hideo Hirano , Yasushi Watanabe
发明人： Kazuo Nakatani , Noriho Okaza , Hideo Hirano , Yasushi Watanabe
IPC分类号： F25B41/00
CPC分类号： F28D7/106 , F25B9/008 , F25B40/00 , F25B2309/061 , F25B2500/01 , F28D7/0041
摘要： In a refrigeration cycle apparatus in which carbon dioxide is used as refrigerant and refractory oil is used as lubricating oil in a compressor, it is an object of the present invention to reduce influence of adhesion of lubricating oil to the internal heat exchanger, and to enhance the heat exchanging efficiency of the internal heat exchanger. A refrigeration cycle apparatus in which a compressor 11, a radiator 12, an expansion valve 13 and an evaporator 14 are connected to one another through tubes, said refrigeration cycle apparatus comprises an internal heat exchanger 30 for exchanging heat between a high pressure refrigerant which flows out from said radiator 12 and low pressure refrigerant which flows out from said evaporator 14, wherein carbon dioxide is used as the refrigerant, refractory oil is used as lubricating oil in said compressor 11, said internal heat exchanger 30 comprises a first heat exchanger tube 31 through which the high pressure refrigerant in a supercritical region flows and a second heat exchanger tube 32 through which the low pressure refrigerant flows, said first heat exchanger tube 31 is disposed in said second heat exchanger tube 32.
摘要翻译： 在使用二氧化碳作为制冷剂的制冷循环装置中，在压缩机中使用耐火油作为润滑油时，本发明的目的是减少润滑油对内部热交换器的粘附的影响，并且增强 内部热交换器的热交换效率。 一种制冷循环装置，其中压缩机11，散热器12，膨胀阀13和蒸发器14通过管彼此连接，所述制冷循环装置包括用于在流动的高压制冷剂之间进行热交换的内部热交换器30 从所述散热器12和从所述蒸发器14流出的低压制冷剂，其中使用二氧化碳作为制冷剂，在所述压缩机11中使用耐火油作为润滑油，所述内部热交换器30包括第一热交换器管31 超临界区域中的高压制冷剂通过该流路和低压制冷剂流过的第二热交换管32，所述第一热交换器管31设置在所述第二热交换管32中。
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