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公开(公告)号：US6044655A
公开(公告)日：2000-04-04
申请号：US916634
申请日：1997-08-22
CPC分类号： F28D7/106 , F25B40/00 , F25B41/062 , F25B9/008 , F25B2309/061 , F25B2341/063 , F25B2341/0653 , F25B2341/0662 , F25B2400/13 , F25B2600/05 , F25B2600/17 , F25B2700/1931 , F25B2700/1933 , F25B2700/2101 , F25B2700/2102 , F25B2700/2104 , F25B2700/2106 , F25B2700/21173 , F25B2700/21175 , Y02B30/72 , Y10S62/17
摘要： A refrigerating system, using CO.sub.2 as a refrigerant, for an air conditioner for an automobile. A pressure at the outlet of the heat emitter 2 is controlled to a target value in accordance with the temperature of the refrigerant at the outlet of the heat emitter for obtaining an operation of the refrigerating system along the optimum control line .eta..sub.max. A pressure reducer 4 and a cooler 5 are provided on a branched passageway 28 branched from a refrigerant recirculating passageway 27 for injection. The cooler 5 is for obtaining a heat exchange between a flow of the refrigerant on the branched passageway 28 after being cooled by the pressure reducer and a flow of the refrigerant on the main passageway 27, thereby cooling the refrigerant directed to the evaporator. In a second aspect of the invention, a means is provided for increasing a target value of the pressure at the pressure reducer when a thermal load of the refrigerating system is high. In a third aspect, a series of pressure reducers are arranged on the main recirculating passageway. The second stage pressure reducer is controlled so as to obtain a desired value of degree of super heating at the inlet of the compressor.
摘要翻译： 一种使用二氧化碳作为制冷剂的制冷系统，用于汽车空调。 根据发热体出口处的制冷剂的温度，将发热体2的出口处的压力控制在目标值，以获得最佳控制线的最大控制线的制冷系统的操作。 减压器4和冷却器5设置在从用于注射的制冷剂再循环通道27分支的分支通道28上。 冷却器5用于在通过减压器冷却后的分支通道28上的制冷剂流与主通道27上的制冷剂流之间获得热交换，从而冷却被引导至蒸发器的制冷剂。 在本发明的第二方面中，提供了一种用于当制冷系统的热负荷高时增加减压器处的压力的目标值的装置。 在第三方面，在主再循环通道上布置有一系列减压器。 控制第二级减压器以获得压缩机入口处的超级加热度的期望值。
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公开(公告)号：US5890370A
公开(公告)日：1999-04-06
申请号：US789210
申请日：1997-01-24
CPC分类号： C09K5/041 , F25B13/00 , F25B41/062 , F25B9/008 , G05D16/0619 , G05D16/0644 , C09K2205/106 , F25B2309/061 , F25B2313/0314 , F25B2341/063 , F25B2341/0653 , F25B2600/0253 , F25B2600/17 , F25B2700/2104 , Y02B30/72 , Y02P20/124 , Y02P20/544
摘要： A refrigerating system of vapor compression type operating at a super critical area, while obtaining an increased efficiency. The refrigerating system includes a pressure control means for controlling the temperature and the pressure at the outlet of a heat emitter. The pressure control valve responds to a pressure difference between the inlet pressure of the refrigerant to the pressure control valve and the pressure in an outwardly sealed chamber in which the refrigerant is filled such that, with respect to the volume of the chamber under closed condition of the pressure control valve, a density of the refrigerant is in a range between a density of a saturated liquid at a temperature of 0.degree. C. and a density at the critical point of the refrigerant. As a result, the pressure and the temperature at the outlet of the heat emitter is controlled substantially along the optimum control line .eta.max, resulting in an effective execution of a refrigerating cycle at the critical area.
摘要翻译： 一种在超临界区域工作的蒸汽压缩式制冷系统，同时获得更高的效率。 制冷系统包括用于控制发热体出口处的温度和压力的压力控制装置。 压力控制阀响应于制冷剂与压力控制阀的入口压力之间的压力差和在其中填充制冷剂的向外密封的室中的压力，使得相对于在闭合状态下的室的体积 压力控制阀，制冷剂的密度在0℃的饱和液体的密度与制冷剂的临界点的密度之间的范围内。 结果，发热体出口处的压力和温度基本上沿着最佳控制线eta max被控制，从而在关键区域有效地执行制冷循环。
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公开(公告)号：US6012300A
公开(公告)日：2000-01-11
申请号：US116898
申请日：1998-07-17
CPC分类号： G05D16/0655 , F25B41/062 , F25B2309/061 , F25B2341/063 , F25B2600/17 , F25B9/008
摘要： A pressure control valve controlling the temperature and pressure at the outlet side of a heat emitter so as to enable efficient operation by a CO.sub.2 system operating at the super critical region, wherein CO.sub.2 is sealed in a closed space at one side of a diaphragm moving the valve element at a density of approximately 600 kg/m.sup.3, a through member made of a material with a high heat conductivity is provided extending between the inside and outside of the closed space, and step differences are eliminated at the contact surfaces to improve the durability of the diaphragm.
摘要翻译： 控制发热体出口侧的温度和压力的压力控制阀，以便能够通过在超临界区域运行的CO 2系统进行有效的操作，其中CO 2密封在隔膜的一侧的封闭空间中， 密封约600kg / m 3的阀元件，由导热性高的材料构成的贯通构件设置在封闭空间的内部和外部之间延伸，并且在接触表面处消除步进差异以提高耐久性 的隔膜。
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4.发明授权Vapor-compression refrigerant cycle system with refrigeration cycle and Rankine cycle 失效具有制冷循环和兰金循环的蒸气压缩制冷剂循环系统公开(公告)号：US07178358B2
公开(公告)日：2007-02-20
申请号：US10765761
申请日：2004-01-27
申请人： Atsushi Inaba , Yasushi Yamanaka , Shigeki Iwanami , Koichi Ban , Shigeru Hisanaga , Tadashi Hotta , Yukikatsu Ozaki , Kazuhide Uchida
发明人： Atsushi Inaba , Yasushi Yamanaka , Shigeki Iwanami , Koichi Ban , Shigeru Hisanaga , Tadashi Hotta , Yukikatsu Ozaki , Kazuhide Uchida
CPC分类号： F25B27/00 , F02G5/04 , F25B1/04 , F25B2400/04 , F25B2400/23 , F25B2600/2507 , F25B2700/04 , Y02T10/166
摘要： A vapor-compression refrigerant cycle system with a refrigeration cycle and a Rankine cycle includes a compressor, a radiator, a gas-liquid separator, a decompression device and an evaporator. In the vapor-compression refrigerant cycle system, a liquid pump is disposed for supplying the liquid refrigerant in the gas-liquid separator to a heater for heating the refrigerant, a cooling means is provided for cooling the liquid refrigerant to be sucked into the liquid pump, and an energy recovery unit for expanding the refrigerant flowing out of the heater is disposed to recover thermal energy in the refrigerant from the heater. When the Rankine cycle is set so that the energy recovery unit recovers the thermal energy, the cooling means cools the liquid refrigerant to be sucked into the liquid pump. Therefore, pumping efficiency of the liquid pump can be effectively improved.
摘要翻译： 具有制冷循环和兰金循环的蒸汽压缩制冷剂循环系统包括压缩机，散热器，气液分离器，减压装置和蒸发器。 在蒸汽压缩制冷剂循环系统中，设置液体泵，用于将气液分离器中的液体制冷剂供给到用于加热制冷剂的加热器，设置冷却装置以冷却要被吸入液体泵的液体制冷剂 并且设置用于膨胀从加热器流出的制冷剂的能量回收单元，以从加热器回收制冷剂中的热能。 当设置兰金循环使得能量回收单元恢复热能时，冷却装置冷却待吸入液体泵的液体制冷剂。 因此，能够有效地提高液体泵的泵送效率。
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公开(公告)号：US06910343B2
公开(公告)日：2005-06-28
申请号：US10819240
申请日：2004-04-06
CPC分类号： F25B9/008 , B60H2001/3298 , F25B41/00 , F25B2309/061 , F25B2341/0012 , F25B2341/0013 , F25B2341/063 , F25B2341/0661 , F25B2400/0411 , F25B2400/23 , F25B2600/2513 , F25B2700/1933 , F25B2700/21174 , F25B2700/21175
摘要： In an ejector cycle having an ejector, a decompression amount of refrigerant between a gas-liquid separator and an evaporator is adjusted by a differential pressure control valve, so that a pressure increasing amount in a pressure increasing portion of the ejector is controlled to be equal to or lower than a predetermined amount. Therefore, a suction pressure of refrigerant to be sucked to the compressor can be restricted from being excessively increased in accordance with the increase of the pressure increasing amount in the ejector, and it can prevent heat radiating capacity of a radiator from being decreased. Thus, a sufficient cooling capacity can be always obtained in the ejector cycle.
摘要翻译： 在具有喷射器的喷射器循环中，通过差压控制阀调节气液分离器和蒸发器之间的减压量的制冷剂，使得喷射器的增压部分中的增压量被控制为相等 达到或低于预定量。 因此，可以根据喷射器中的增压量的增加来限制吸入压缩机的制冷剂的吸入压力过大，能够防止散热器的散热能力下降。 因此，在喷射器循环中可以始终获得足够的冷却能力。
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公开(公告)号：US6092379A
公开(公告)日：2000-07-25
申请号：US352676
申请日：1999-07-14
申请人： Shin Nishida , Naruhide Kimura , Yukikatsu Ozaki
发明人： Shin Nishida , Naruhide Kimura , Yukikatsu Ozaki
CPC分类号： B60H1/3232 , B60H1/323 , F25B41/062 , F25B5/02 , F25B9/008 , F25B2309/061 , F25B2341/063 , F25B2341/0653 , F25B2600/17 , Y02B30/72
摘要： The supercritical refrigerating circuit has a first pressure reducing valve for reducing pressure of refrigerant flows into a first evaporator and a second pressure reducing valve for reducing pressure of refrigerant flows into a second evaporator. The first pressure reducing valve further controls refrigerant pressure at an outlet of a gas cooler. Accordingly, the supercritical refrigerant circuit is controlled without increasing the number of the pressure reducing valve.
摘要翻译： 超临界制冷回路具有用于减少制冷剂流入第一蒸发器的压力的第一减压阀和用于减少制冷剂流入第二蒸发器的压力的第二减压阀。 第一减压阀进一步控制气体冷却器出口处的制冷剂压力。 因此，不增加减压阀的数量来控制超临界制冷剂回路。
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7.发明授权Gas-liquid separator for a heat pump type air conditioning system using a gas-injection cycle 失效用于使用气体注入循环的热泵式空调系统的气液分离器
公开(公告)号：US5692394A
公开(公告)日：1997-12-02
申请号：US706329
申请日：1996-08-30
申请人： Yukikatsu Ozaki , Masaru Tsunokawa
发明人： Yukikatsu Ozaki , Masaru Tsunokawa
CPC分类号： F25B41/04 , F25B1/10 , F25B13/00 , F25B2400/13 , F25B2400/23
摘要： A gas-liquid separator for a heat pump type air conditioning system using a gas-injection cycle, which system can switch its mode of operation between heating and cooling modes, includes a reservoir for receiving refrigerant in a gas-liquid two-phase flow, an exit port which opens at a upper portion of the reservoir and allows a refrigerant gas to flow out of the reservoir, first and second ports which are provided at a upper part within the reservoir above the level of a refrigerant liquid and allows the refrigerant to flow into and out of the reservoir. A first refrigerant path for allowing the first port to fluidly communicate with the refrigerant liquid in the reservoir, a second refrigerant path for allowing the first port to fluidly communicate with the refrigerant gas above the level of the refrigerant liquid in the reservoir, a third refrigerant path for allowing the second port to fluidly communicate with the refrigerant liquid in the reservoir, and a fourth refrigerant path for allowing the second port to fluidly communicate with the refrigerant gas above the level of the refrigerant liquid in the reservoir are provided within the reservoir. The second and third refrigerant path open when a refrigerant enters the reservoir through the first port, and the first and fourth refrigerant path open when a refrigerant enters the reservoir through the second port.
摘要翻译： 一种用于使用气体注入循环的热泵式空调系统的气液分离器，该系统可以在加热和冷却模式之间切换其运行模式，包括用于在气液两相流中接收制冷剂的储存器， 出口，其在储存器的上部开口并允许制冷剂气体从储存器流出;第一和第二端口，其设置在储存器的上部，高于制冷剂液体的高度，并允许制冷剂 流入和流出水库。 第一制冷剂路径，用于允许第一端口与贮存器中的制冷剂液体流体连通;第二制冷剂路径，用于允许第一端口与制冷剂气体在贮存器中的制冷剂液体的液面之上流体连通;第三制冷剂路径， 用于允许第二端口与储存器中的制冷剂液体流体连通的路径，以及用于允许第二端口与位于储存器中的制冷剂液体高度之上的制冷剂气体流体连通的第四制冷剂路径。 当制冷剂通过第一端口进入储存器时，第二和第三制冷剂通道打开，并且当制冷剂通过第二端口进入储存器时，第一和第四制冷剂通道打开。
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公开(公告)号：US07334427B2
公开(公告)日：2008-02-26
申请号：US10791650
申请日：2004-03-02
CPC分类号： F25B9/008 , B60H2001/3298 , F04F5/04 , F04F5/461 , F25B41/00 , F25B2309/061 , F25B2341/0012 , F25B2341/0013 , F25B2500/01 , F25B2600/17
摘要： In an ejector, a nozzle includes a nozzle tapered section having an inner passage with a radial dimension reduced toward a nozzle outlet port, and a needle having a needle tapered section disposed in the inner passage. The needle tapered section has a cross sectional area reduced toward a downstream end of the needle, and the downstream end of the needle is positioned at a downstream side with respect to the nozzle outlet port. In addition, the nozzle tapered section has a taper angle (φ1) which is equal to or greater than a taper angle (φ2) of the needle tapered section. Therefore, a boundary face on the outside of a nozzle jet flow becomes in a balanced natural shape, and is controlled in accordance with an operating condition. Thus, the ejector cycle can be operated while keeping high efficiency, regardless of the thermal load of the ejector cycle.
摘要翻译： 在喷射器中，喷嘴包括具有径向尺寸朝向喷嘴出口减小的内通道的喷嘴锥形部分和设置在内通道中的具有针锥形部分的针。 针状锥形部具有朝向针的下游端减小的截面积，针的下游端位于相对于喷嘴出口的下游侧。 此外，喷嘴锥形部具有等于或大于针锥形部的锥角（phi 2）的锥角（phi 1）。 因此，喷嘴喷流的外侧的边界面成为平衡的自然形状，并且根据操作条件进行控制。 因此，不管喷射器周期的热负荷如何，喷射器循环可以在保持高效率的同时运行。
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公开(公告)号：US06776029B2
公开(公告)日：2004-08-17
申请号：US10271678
申请日：2002-10-15
申请人： Tadashi Hotta , Yukikatsu Ozaki , Toshio Hirata
发明人： Tadashi Hotta , Yukikatsu Ozaki , Toshio Hirata
IPC分类号： G01N3330
CPC分类号： F25B31/002 , F25B2309/061 , F25B2500/19 , F25B2700/03 , G01N33/30
摘要： An oil content measuring device measures the oil content of a refrigerant in a supercritical or a vapor phase state. A refrigeration system uses the oil content measuring device. The oil content measuring device has an electrostatic capacity measuring device for measuring an electrostatic capacity of the refrigerant containing a refrigerating machine oil, a density measuring device for measuring a density of at least one of the refrigerant and the refrigerating machine oil, a computing device for performing a computation on correlation characteristics between the electrostatic capacity and an oil content which indicates the ratio of the amount of the refrigerating machine oil to the amount of the refrigerant containing the refrigerating machine oil, using the density measured by the density measuring device. An oil content determining device determines an oil content at the measuring time from an electrostatic capacity using the correlation characteristics obtained by the computing device.
摘要翻译： 含油量测量装置测量超临界或汽相状态的制冷剂的油含量。 制冷系统使用含油量测量装置。 含油量测量装置具有用于测量含有冷冻机油的制冷剂的静电容量的静电电容测量装置，用于测量至少一个制冷剂和冷冻机油的密度的浓度测量装置，用于 利用密度测定装置测定的密度，对表示冷冻机油的量与含有冷冻机油的制冷剂的比例的静电电容与含油量之间的相关特性进行计算。 油含量确定装置使用由计算装置获得的相关特性，从静电容量确定测量时刻的油含量。
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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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