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。

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。

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。

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.

公开(公告)号：US5890370A

公开(公告)日：1999-04-06

申请号：US789210

申请日：1997-01-24

申请人： Hisayoshi Sakakibara ,  Shin Nishida ,  Sadahisa Onimaru ,  Yuichi Sakajo ,  Yukikatsu Ozaki

发明人： Hisayoshi Sakakibara ,  Shin Nishida ,  Sadahisa Onimaru ,  Yuichi Sakajo ,  Yukikatsu Ozaki

IPC分类号： F25B1/00 ,  C09K5/04 ,  F25B9/00 ,  F25B13/00 ,  F25B41/06 ,  G05D16/06

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。

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。

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。

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。

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。

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。