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公开(公告)号：US20100024469A1
公开(公告)日：2010-02-04
申请号：US12462111
申请日：2009-07-29
CPC分类号： F25B49/02 , B60H1/3228 , B60H2001/3291 , F25B40/00 , F25B2600/21 , F25B2700/2117
摘要： A refrigerating cycle apparatus includes a circulation refrigerant, a compressor, a condenser, an expansion valve, an evaporator, and an internal heat exchanger. The internal heat exchanger is disposed to perform heat exchange between a high pressure circulation refrigerant flowing from the condenser to the expansion valve and a low pressure circulation refrigerant flowing from the evaporator and the compressor. The circulation refrigerant has a property indicating an isentropic line having a gradient greater than a gradient of an isentropic line of a R134a refrigerant and a saturation characteristic curve having a two-phase region enthalpy width smaller than a two-phase region enthalpy width of the R134a refrigerant, on a p-h chart.
摘要翻译： 制冷循环装置包括循环制冷剂，压缩机，冷凝器，膨胀阀，蒸发器和内部热交换器。 内部热交换器被设置为在从冷凝器流向膨胀阀的高压循环制冷剂和从蒸发器和压缩机流动的低压循环制冷剂之间进行热交换。 循环制冷剂具有表示具有比R134a制冷剂的等熵线的梯度大的梯度的等熵线和具有比R134a的两相区域焓宽小的两相区域焓值的饱和特性曲线的性质 制冷剂，在ph图表上。
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公开(公告)号：US6000233A
公开(公告)日：1999-12-14
申请号：US150318
申请日：1998-09-09
IPC分类号： F25B1/00 , C10M145/24 , C10M171/00 , C10N40/30 , F25B9/00 , F25B31/00 , F25B43/00 , F25B41/00
CPC分类号： F25B31/002 , C10M171/008 , F25B43/006 , F25B9/008 , C10M2209/00 , C10M2209/02 , C10M2209/10 , C10M2209/103 , F25B2309/061
摘要： In a CO.sub.2 refrigerant cycle, a lubricating oil for a compressor has a compatibility relative to CO.sub.2 refrigerant, and the compatibility of the lubricating oil relative to the CO.sub.2 refrigerant at a pressure lower than a critical pressure of the CO.sub.2 refrigerant is lower than that at a pressure higher than the critical pressure of the CO.sub.2 refrigerant. Thus, in a low-pressure side such as an accumulator of the CO.sub.2 refrigerant cycle, because a liquid lubricating oil is separated with a liquid CO.sub.2 refrigerant, only the lubricating oil can be readily introduced into a suction side of the compressor, and it can prevent the liquid CO.sub.2 refrigerant from being sucked into the compressor. As a result, it can prevent a damage to the compressor while preventing deterioration of coefficient of performance of the CO.sub.2 refrigerant cycle.
摘要翻译： 在二氧化碳制冷剂循环中，用于压缩机的润滑油具有相对于二氧化碳制冷剂的相容性，并且在低于二氧化碳制冷剂的临界压力的压力下，润滑油相对于二氧化碳制冷剂的相容性低于二氧化碳制冷剂 压力高于CO2制冷剂的临界压力。 因此，在CO 2制冷剂循环的蓄压器等低压侧，由于液体润滑油与液体CO 2制冷剂分离，所以只能将润滑油引入压缩机的吸入侧， 防止液体CO2制冷剂被吸入压缩机。 结果，能够防止压缩机的损坏，同时防止二氧化碳制冷剂循环的性能系数的劣化。
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公开(公告)号：US06543238B2
公开(公告)日：2003-04-08
申请号：US09892109
申请日：2001-06-26
申请人： Yasushi Yamanaka , Yasutaka Kuroda , Shin Nishida , Motohiro Yamaguchi , Yukikatsu Ozaki , Tadashi Hotta , Sadahisa Onimaru , Mitsuo Inagaki
发明人： Yasushi Yamanaka , Yasutaka Kuroda , Shin Nishida , Motohiro Yamaguchi , Yukikatsu Ozaki , Tadashi Hotta , Sadahisa Onimaru , Mitsuo Inagaki
IPC分类号： F28B900
CPC分类号： F04C23/008 , A63B2053/023 , F04C18/0215 , F04C23/003 , F04C29/0064 , F25B1/10 , F25B9/008 , F25B9/06 , F25B11/02 , F25B2309/061 , F25B2341/0661 , F25B2341/0662 , F25B2400/04 , F25B2400/075 , F25B2400/13 , F25B2400/14 , F25B2400/141 , F25B2600/17
摘要： In a refrigerant cycle system, refrigerant compressed in a first compressor is cooled and condensed in a radiator, and refrigerant from the radiator branches into main-flow refrigerant and supplementary-flow refrigerant. The main-flow refrigerant is decompressed in an expansion unit while expansion energy of the main-flow refrigerant is converted to mechanical energy. Thus, the enthalpy of the main-flow refrigerant is reduced along an isentropic curve. Therefore, even when the pressure within the evaporator increases, refrigerating effect is prevented from being greatly reduced in the refrigerant cycle system. Further, refrigerant flowing into the radiator is compressed using the converted mechanical energy. Thus, coefficient of performance of the refrigerant cycle system is improved.
摘要翻译： 在制冷剂循环系统中，在第一压缩机中压缩的制冷剂在散热器中冷却冷凝，来自散热器的制冷剂分支成主流制冷剂和辅助流动制冷剂。 主流制冷剂在膨胀单元中减压，主流制冷剂的膨胀能转化为机械能。 因此，主流制冷剂的焓沿着等熵曲线减小。 因此，即使当蒸发器内的压力增加时，制冷剂循环系统也不会大大降低制冷效果。 此外，流入散热器的制冷剂使用转换后的机械能进行压缩。 因此，制冷剂循环系统的性能系数提高。
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公开(公告)号：US06321564B1
公开(公告)日：2001-11-27
申请号：US09524676
申请日：2000-03-13
申请人： Yasushi Yamanaka , Yasutaka Kuroda , Shin Nishida , Motohiro Yamaguchi , Yukikatsu Ozaki , Tadashi Hotta , Sadahisa Onimaru , Mitsuo Inagaki
发明人： Yasushi Yamanaka , Yasutaka Kuroda , Shin Nishida , Motohiro Yamaguchi , Yukikatsu Ozaki , Tadashi Hotta , Sadahisa Onimaru , Mitsuo Inagaki
IPC分类号： F25B110
CPC分类号： F04C23/008 , A63B2053/023 , F04C18/0215 , F04C23/003 , F04C29/0064 , F25B1/10 , F25B9/008 , F25B9/06 , F25B11/02 , F25B2309/061 , F25B2341/0661 , F25B2341/0662 , F25B2400/04 , F25B2400/075 , F25B2400/13 , F25B2400/14 , F25B2400/141 , F25B2600/17
摘要： In a refrigerant cycle system, refrigerant compressed in a first compressor is cooled and condensed in a radiator, and refrigerant from the radiator branches into main-flow refrigerant and supplementary-flow refrigerant. The main-flow refrigerant is decompressed in an expansion unit while expansion energy of the main-flow refrigerant is converted to mechanical energy. Thus, the enthalpy of the main-flow refrigerant is reduced along an isentropic curve. Therefore, even when the pressure within the evaporator increases, refrigerating effect is prevented from being greatly reduced in the refrigerant cycle system. Further, refrigerant flowing into the radiator is compressed using the converted mechanical energy. Thus, coefficient of performance of the refrigerant cycle system is improved.
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公开(公告)号：US06505476B1
公开(公告)日：2003-01-14
申请号：US09694378
申请日：2000-10-23
申请人： Shin Nishida , Motohiro Yamaguchi , Satoshi Itoh , Yasutaka Kuroda , Yoshitaka Tomatsu , Yasushi Yamanaka , Yukikatsu Ozaki
发明人： Shin Nishida , Motohiro Yamaguchi , Satoshi Itoh , Yasutaka Kuroda , Yoshitaka Tomatsu , Yasushi Yamanaka , Yukikatsu Ozaki
IPC分类号： F25B4900
CPC分类号： F25B9/008 , F25B40/00 , F25B41/062 , F25B2309/061 , F25B2400/16 , F25B2600/021 , F25B2600/17 , F25B2700/2106 , F25B2700/21161 , Y02B30/741
摘要： In a refrigerant cycle system, a control unit controls both a refrigerant amount discharged from a compressor and an opening degree of a pressure control valve so that theoretical efficiency of a super-critical refrigerant cycle and efficiency of the compressor are improved. Therefore, the effective coefficient of performance of the refrigerant cycle is improved, while necessary capacity of components of the refrigerant cycle is obtained.
摘要翻译： 在制冷剂循环系统中，控制单元控制从压缩机排出的制冷剂量和压力控制阀的开度，从而提高了超临界制冷剂循环的理论效率和压缩机的效率。 因此，提高了制冷剂循环的有效性能系数，同时获得制冷剂循环的部件的必要容量。
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公开(公告)号：US6105386A
公开(公告)日：2000-08-22
申请号：US185934
申请日：1998-11-04
申请人： Yasutaka Kuroda , Shin Nishida
发明人： Yasutaka Kuroda , Shin Nishida
CPC分类号： F25B9/008 , F25B40/00 , F25B41/04 , F25B2309/061 , F25B2341/063 , F25B2400/04 , F25B2600/17 , F25B2600/2501 , F25B41/06
摘要： The supercritical refrigerating apparatus has refrigerant bypass means for bypassing a heat exchanger according to a physical value of the refrigerant. Therefore, the temperature of refrigerant on a suction side of the compressor becomes lower than that of refrigerant sucked into the compressor via the heat exchanger. As a result, the refrigerant temperature in a refrigerant passage extending from a suction side to a discharge side of the compressor is decreased, thereby preventing breakage of the compressor.
摘要翻译： 超临界制冷装置具有用于根据制冷剂的物理值旁路热交换器的制冷剂旁通装置。 因此，压缩机的吸入侧的制冷剂的温度比通过热交换器吸入压缩机的制冷剂的温度低。 结果，从压缩机的吸入侧向排出侧延伸的制冷剂通路的制冷剂温度降低，能够防止压缩机的破损。
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公开(公告)号：US5983657A
公开(公告)日：1999-11-16
申请号：US13345
申请日：1998-01-26
CPC分类号： B60H1/3225 , F25B2309/061
摘要： An air conditioning system having an evaporator 8 at a location upstream from a compressor. When a compressor is stopped, a refrigerant inlet is closed by an electromagnetic valve 28 and a refrigerant outlet is closed by a check valve 29. A pressure in the closed passageway is detected by a pressure sensor 22. A leakage of refrigerant at the evaporator is reliably detected, which allows the leakage of the refrigerant to be quickly noticed.
摘要翻译： 一种在压缩机上游位置具有蒸发器8的空调系统。 当压缩机停止时，制冷剂入口被电磁阀28关闭，制冷剂出口由止回阀29关闭。封闭通道中的压力由压力传感器22检测。制冷剂在蒸发器处的泄漏是 可靠地检测，这允许快速注意到制冷剂的泄漏。
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公开(公告)号：US6134900A
公开(公告)日：2000-10-24
申请号：US234188
申请日：1999-01-20
申请人： Shin Nishida , Yasutaka Kuroda
发明人： Shin Nishida , Yasutaka Kuroda
CPC分类号： F25B41/062 , B60H1/3225 , F25B9/008 , F25B2309/061 , F25B2341/063 , F25B2341/0653 , F25B2500/05 , F25B2600/17 , Y02B30/72
摘要： When a compressor is stopped, a refrigerant passage in which refrigerant flows from a radiator to an evaporator is closed by a pressure control valve. Accordingly, even after the compressor is stopped, a high-pressure side pressure can be prevented from decreasing. This does not cause increased manufacturing cost of a supercritical refrigerating system.
摘要翻译： 当压缩机停止时，由制冷剂从散热器流向蒸发器的制冷剂通道被压力控制阀关闭。 因此，即使在压缩机停止之后，也可以防止高压侧压力下降。 这不会导致超临界制冷系统的制造成本增加。
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公开(公告)号：US20090090579A1
公开(公告)日：2009-04-09
申请号：US12286724
申请日：2008-10-01
申请人： Shin Nishida , Masaaki Kawakubo , Takashi Yamanaka
发明人： Shin Nishida , Masaaki Kawakubo , Takashi Yamanaka
IPC分类号： F01N1/00
CPC分类号： F04B53/001 , B60H1/00571 , B60H2001/006 , F04C29/065 , F04C2240/806 , F25B2500/12
摘要： A silencer for a refrigeration cycle system is disclosed. The silencer includes a silencing chamber 15a formed in a housing 16, an inlet pipe 20 connected to the housing 16 to allow the refrigerant to flow into the silencing chamber 15a, and an outlet pipe 21 connected to the housing 16 to allow the refrigerant to flow out of the silencing chamber 15a. The direction in which the inlet pipe 20 is connected to the housing 16 and the direction in which the outlet pipe 21 is connected to the housing 16 cross each other. A bend 21c projected into the silencing chamber 15a and curved toward the upstream end 20b of the inlet pipe 20 is formed at the upstream end 21b portion of the outlet pipe 21. The bend 21c is formed with an opening 21d to open the inside part thereof. As a result, the refrigerant that has flowed into the silencing chamber 15a can be guided smoothly to the outlet pipe 21 while at the same time avoiding a case in which the bend 21c suppresses the interference of the pressure wave.
摘要翻译： 公开了一种用于制冷循环系统的消音器。 消声器包括形成在壳体16中的消音室15a，连接到壳体16以允许制冷剂流入消音室15a的入口管20和连接到壳体16的出口管21，以允许制冷剂流动 离开消音室15a。 入口管20连接到壳体16的方向和出口管21连接到壳体16的方向彼此交叉。 在出口管21的上游侧21b部分处形成有投影到消音室15a中并弯曲到入口管20的上游端20b的弯曲部21c。弯曲部21c形成有开口部21d， 。 结果，流入消音室15a的制冷剂可以平滑地引导到出口管21，同时避免了弯曲部21c抑制压力波的干扰的情况。
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公开(公告)号：US08082746B2
公开(公告)日：2011-12-27
申请号：US12378994
申请日：2009-02-20
申请人： Takashi Yamanaka , Shin Nishida
发明人： Takashi Yamanaka , Shin Nishida
CPC分类号： F25B49/005 , B60H1/00978
摘要： In a refrigeration cycle device for a vehicle, a weak-inflammability refrigerant that does not ignite at a high-temperature heat source mounted in an engine compartment of the vehicle in a refrigerant single state is circulated in a refrigerant cycle. The refrigerant cycle includes a compressor for compressing and discharging the refrigerant. The compressor includes an oil separator that is located at a refrigerant discharge side of the compressor to separate a lubrication oil from the refrigerant and to return the separated lubrication oil to an interior of the compressor, a shutting portion configured to shut a reverse flow of the refrigerant at a refrigerant suction side of the compressor, and a driving portion located to drive the shutting portion. Furthermore, the driving portion causes the shutting portion to shut the reverse flow of the refrigerant when the refrigerant cycle is damaged.
摘要翻译： 在车辆的制冷循环装置中，以制冷剂单独状态在车辆的发动机室内安装的高温热源不点燃的弱燃性制冷剂在制冷剂循环中循环。 制冷剂循环包括用于压缩和排出制冷剂的压缩机。 该压缩机包括分离器，该油分离器位于压缩机的制冷剂排放侧，以将润滑油与制冷剂分离并将分离的润滑油返回到压缩机的内部;关闭部分， 在压缩机的制冷剂吸入侧的制冷剂，以及用于驱动关闭部的驱动部。 此外，当制冷剂循环损坏时，驱动部分使得关闭部分关闭制冷剂的逆流。
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