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1. 发明授权

US5692394A Gas-liquid separator for a heat pump type air conditioning system using a gas-injection cycle 失效
标题翻译：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
IPC分类号： F25B1/00 , F25B1/10 , F25B13/00 , F25B41/04 , F25B43/00 , F25B39/04
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。

2. 发明授权

US5752391A Refrigerating system 失效
标题翻译：制冷系统
公开(公告)号：US5752391A
公开(公告)日：1998-05-19
申请号：US787374
申请日：1997-01-22
申请人： Yukikatsu Ozaki , Masaru Tsunokawa , Takahisa Suzuki , Toshihiro Nagata , Mitsuo Inagaki , Sadahisa Onimaru
发明人： Yukikatsu Ozaki , Masaru Tsunokawa , Takahisa Suzuki , Toshihiro Nagata , Mitsuo Inagaki , Sadahisa Onimaru
IPC分类号： F25B1/00 , B60H1/32 , F04C29/00 , F25B1/04 , F25B1/10 , F25B5/04 , F25B13/00 , F25B41/04 , F25B41/06
CPC分类号： F25B41/062 , B60H1/3204 , F04C29/0007 , F25B1/04 , F25B41/04 , F25B5/04 , F25B1/10 , F25B13/00 , F25B2313/0314 , F25B2341/063 , F25B2400/13 , F25B2400/23 , F25B2600/0253 , F25B2600/2501 , F25B2600/2509 , F25B2700/1931 , F25B2700/1933 , F25B2700/195 , F25B2700/2104 , F25B2700/2106 , F25B2700/21163 , F25B2700/21175
摘要： A refrigerating system of a gas injection type having first and second stage pressure reducers 3 and 5, between which a separator 4 is arranged, and a conduit 10 for introduction of a gaseous refrigerant separated at a separator 4 into a compressor 1. A by-pass conduit 11 is connected to a refrigerating system so that the second stage pressure reducer 5 is by-passed. An ON-OFF control valve 12 is arranged in the by-pass conduit. The control valve 12 is switched to an opened condition during a low load of the air conditioning system, which makes a pressure difference low between the outlet of the separator 4 and an evaporator 6, which prevent gas injection from being executed. A control valve can also be arranged in a gas injection conduit 10, which controls an amount of the gas injection in accordance with a ratio (compression ratio) of an outlet pressure to an intake pressure in such a manner a reduction of a gas injection amount is obtained when a value of the compression ratio is lower than a predetermined value, thereby preventing over-compression from occurring.
摘要翻译：一种具有第一和第二级减压器3和5的气体注入型制冷系统，其间布置有隔板4，以及用于将在分离器4处分离的气态制冷剂引入压缩机1的导管10。通过导管11连接到制冷系统，以使第二级减压器5被旁路。旁通管道设置有开关控制阀12。在空调系统的低负荷期间，将控制阀12切换到打开状态，这使隔板4的出口与蒸发器6之间的压力差低，从而防止气体喷射被执行。控制阀也可以布置在气体注入管道10中，气体注入管道10根据出口压力与进气压力的比率（压缩比）来控制气体喷射量，从而减少气体喷射量当压缩比的值低于预定值时获得，从而防止发生过压缩。

3. 发明授权

US5701752A Vehicular air temperature control system having excellent windshield defogging characteristics 失效
标题翻译：车辆空气温度控制系统具有优良的挡风玻璃除雾特性
公开(公告)号：US5701752A
公开(公告)日：1997-12-30
申请号：US736986
申请日：1996-10-25
申请人： Masaru Tsunokawa , Yukikatsu Ozaki , Sadahisa Onimaru , Takahisa Suzuki
发明人： Masaru Tsunokawa , Yukikatsu Ozaki , Sadahisa Onimaru , Takahisa Suzuki
IPC分类号： B60H1/00 , B60S1/02 , B60S1/54
CPC分类号： B60H1/00835 , B60H1/00785 , B60S1/023
摘要： When heating the passenger compartment of a vehicle during cold weather, an air switching outlet is operated to allow the entry of outside air with an interior blower being operated to facilitate the entry of the outside air. A condenser door is operated to close an air passage of the condenser and a bypass passage is opened so that outside air flows to the passenger compartment of the vehicle while bypassing the condenser. Further, only a defogging outlet is opened and the incoming air is blown out from this defogging outlet toward the windshield of the vehicle so that a low humidity air curtain is formed proximate to the inner surface of the windshield. After completing the warm-up of the heat pump cycle, the condenser door is switched such that the air blown in by the blower passes the interior condenser to start the heating of the passenger compartment.
摘要翻译：在寒冷天气期间加热车辆的乘客舱时，操作空气切换出口以允许外部空气进入操作的内部鼓风机以便于外部空气的进入。操作冷凝器门以关闭冷凝器的空气通道，并且旁路通道打开，使得外部空气在绕过冷凝器时流向车辆的乘客室。此外，只有除雾出口被打开，并且进入的空气从该除雾出口吹向车辆的挡风玻璃，使得在挡风玻璃的内表面附近形成低湿度的气帘。在完成热泵循环的预热之后，冷凝器门被切换，使得由鼓风机吹入的空气通过内部冷凝器开始乘客舱的加热。

4. 发明授权

US06910343B2 Vapor-compression refrigerant cycle with ejector 有权
标题翻译：带喷射器的蒸气压缩制冷剂循环
公开(公告)号：US06910343B2
公开(公告)日：2005-06-28
申请号：US10819240
申请日：2004-04-06
申请人： Yukikatsu Ozaki , Hirotsugu Takeuchi
发明人： Yukikatsu Ozaki , Hirotsugu Takeuchi
IPC分类号： F25B1/00 , F25B9/00 , F25B41/00 , F25B1/06
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。

5. 发明授权

US6092379A Supercritical refrigerating circuit 有权
标题翻译：超临界制冷回路
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
IPC分类号： F25B1/00 , B60H1/32 , F25B5/02 , F25B9/00 , F25B41/06
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。

6. 发明授权

US07334427B2 Ejector with tapered nozzle and tapered needle 有权
标题翻译：喷嘴采用锥形喷嘴和锥形针
公开(公告)号：US07334427B2
公开(公告)日：2008-02-26
申请号：US10791650
申请日：2004-03-02
申请人： Yukikatsu Ozaki , Tadashi Hotta , Hirotsugu Takeuchi
发明人： Yukikatsu Ozaki , Tadashi Hotta , Hirotsugu Takeuchi
IPC分类号： F25B1/06 , F25B41/06
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。

7. 发明授权

US06776029B2 Oil content measuring device and refrigeration system using the same 失效
标题翻译：含油量测量装置和制冷系统采用相同的方法
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。

8. 发明授权

US06505476B1 Refrigerant cycle system with super-critical refrigerant pressure 有权
标题翻译：具有超临界制冷剂压力的制冷循环系统
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。

9. 发明授权

US5778691A Gas injection type heat pump apparatus 失效
标题翻译：注气式热泵设备
公开(公告)号：US5778691A
公开(公告)日：1998-07-14
申请号：US889216
申请日：1997-07-08
申请人： Takahisa Suzuki , Yuuji Takeo , Yukikatsu Ozaki
发明人： Takahisa Suzuki , Yuuji Takeo , Yukikatsu Ozaki
IPC分类号： F25B13/00 , B60H1/00 , F25B49/02
CPC分类号： F25B49/027 , B60H1/00907 , B60H2001/00935 , F25B2400/13 , F25B2400/23
摘要： According to the present invention, in a gas injection type heat pump apparatus, the high-pressure side pressure of refrigeration cycle is detected in a heating operation, and an upper limit value of an amount of air passing through an inside heat exchanger is determined based on the detection value. The upper limit value and a set air amount set by an air amount switching lever are compared. When the set air amount is larger than the upper limit value, the amount of the air passing through the inside heat exchanger is restricted within the upper limit value. In this way, the high-pressure side pressure increases, and an intermediate pressure in a gas-liquid separator also increases. Therefore, the gas injection amount can be increased, and a heating capacity can be effectively improved.
摘要翻译：根据本发明，在气体注入型热泵装置中，在制热运转中检测制冷循环的高压侧压力，并且基于内部热交换器的空气量的上限值被确定对检测值。比较由空气量切换杆设定的上限值和设定空气量。当设定空气量大于上限值时，通过内部热交换器的空气量被限制在上限值内。以这种方式，高压侧压力增加，并且气液分离器中的中间压力也增加。因此，可以提高气体喷射量，并且可以有效地提高加热能力。

10. 发明授权

US06604379B2 Ejector for ejector cycle system 有权
公开(公告)号：US06604379B2
公开(公告)日：2003-08-12
申请号：US10281690
申请日：2002-10-28
申请人： Tadashi Hotta , Yukikatsu Ozaki , Hiroshi Ishikawa , Hirotsugu Takeuchi
发明人： Tadashi Hotta , Yukikatsu Ozaki , Hiroshi Ishikawa , Hirotsugu Takeuchi
IPC分类号： F25B100
CPC分类号： F25B41/06 , F04F5/04 , F25B9/008 , F25B41/00 , F25B2309/061 , F25B2341/0012 , F25B2500/01
摘要： In an ejector used for an ejector cycle system, a nozzle has a first refrigerant passage, a second refrigerant passage, and a third refrigerant passage in this order in a refrigerant flow direction from a refrigerant inlet toward a refrigerant outlet of the nozzle. The first refrigerant passage, the second refrigerant passage and the third refrigerant passage are formed into cylindrical shapes, respectively, each having a constant passage diameter. Further, a pressure increasing portion of the ejector is also formed into a cylindrical shape having a constant passage diameter. Accordingly, the ejector can be readily manufactured in low cost.

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