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公开(公告)号：US06918266B2
公开(公告)日：2005-07-19
申请号：US10826203
申请日：2004-04-16
申请人： Makoto Ikegami , Haruyuki Nishijima , Tooru Ikemoto , Yukio Ogawa , Hisatsugu Matsunaga , Takeharu Asaoka , Hirotsugu Takeuchi
发明人： Makoto Ikegami , Haruyuki Nishijima , Tooru Ikemoto , Yukio Ogawa , Hisatsugu Matsunaga , Takeharu Asaoka , Hirotsugu Takeuchi
CPC分类号： F04F5/04 , B60H2001/3298 , F25B9/008 , F25B41/00 , F25B2309/061 , F25B2341/0012 , F25B2500/01
摘要： In an ejector, a nozzle is provided within a housing to defining a passage portion around the nozzle, and a suction port is provided in the housing to draw a refrigerant by entrainment of a driving refrigerant jetted from the nozzle. Further, a wall portion is provided in the housing such that the refrigerant drawn from the suction port into the passage portion is prevented from flowing toward an inlet side of the nozzle from a position of the suction port in an axial direction of the nozzle. Therefore, all of the refrigerant flowing from the suction port flows toward an outlet side of the nozzle without flowing toward the inlet side of the nozzle from the position of the suction port in the axial direction. Thus, it can prevent a large pressure loss from being caused in the refrigerant sucked from the suction port, and ejector efficiency can be effectively increased.
摘要翻译： 在喷射器中，喷嘴设置在壳体内以限定喷嘴周围的通道部分，并且吸入口设置在壳体中以通过夹带从喷嘴喷射的驱动制冷剂来吸入制冷剂。 此外，在壳体中设置有壁部，使得从吸入口向通道部分中抽出的制冷剂不会从喷嘴的沿喷嘴轴向的位置流向喷嘴的入口侧。 因此，从吸入口流出的所有制冷剂从吸入口的轴向位置向喷嘴的入口侧流向喷嘴的出口侧。 因此，可以防止从吸入口吸入的制冷剂中产生大的压力损失，能够有效地提高喷射器的效率。
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公开(公告)号：US06925835B2
公开(公告)日：2005-08-09
申请号：US10869724
申请日：2004-06-16
申请人： Haruyuki Nishijima , Hisatsugu Matsunaga , Tooru Ikemoto , Hirotsugu Takeuchi , Takeharu Asaoka
发明人： Haruyuki Nishijima , Hisatsugu Matsunaga , Tooru Ikemoto , Hirotsugu Takeuchi , Takeharu Asaoka
CPC分类号： F25B41/00 , B60H2001/3298 , F25B9/008 , F25B49/027 , F25B2309/061 , F25B2341/0011 , F25B2341/0012 , F25B2341/0013 , F25B2600/17 , F25B2700/195 , F25B2700/2106 , F25B2700/21175
摘要： In an ejector cycle with an ejector including a nozzle for decompressing refrigerant, a refrigerant outlet is provided in an evaporator at a position upper than a refrigerant inlet. Therefore, a circulation performance of refrigerant flowing in the evaporator can be improved. Accordingly, even when a pumping capacity generated in the ejector becomes smaller, a sufficient amount of refrigerant can be drawn into the ejector from the evaporator. Thus, a refrigerant amount supplied to the evaporator can be effectively increased. Further, a control unit controls an amount of cooling air supplied to a condenser based on the temperature of the cooling air, to control a refrigerant state to be introduced to the nozzle. In this case, a pressure increasing amount in the ejector can be effectively increased, and consumption power in the compressor can be effectively increased.
摘要翻译： 在具有用于减压制冷剂的喷嘴的喷射器的喷射器循环中，在蒸发器中在制冷剂入口上方的位置设置制冷剂出口。 因此，可以提高在蒸发器中流动的制冷剂的循环性能。 因此，即使在喷射器中产生的泵送能力变小时，也能够从蒸发器将足够量的制冷剂吸入喷射器。 因此，能够有效地提高向蒸发器供给的制冷剂量。 此外，控制单元基于冷却空气的温度来控制供给到冷凝器的冷却空气的量，以控制向喷嘴引入的制冷剂状态。 在这种情况下，可以有效地提高喷射器中的增压量，并且能够有效地提高压缩机的消耗功率。
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公开(公告)号：US07347062B2
公开(公告)日：2008-03-25
申请号：US10868619
申请日：2004-06-15
IPC分类号： F25B1/06
CPC分类号： F25B47/022 , B60H2001/3298 , F25B41/00 , F25B2341/0011 , F25B2341/0012 , F25B2341/0013 , F25B2400/0403 , F25B2400/16 , F25B2700/21175
摘要： An ejector cycle with an ejector includes a nozzle for decompressing refrigerant. A receiver for storing refrigerant is disposed at a refrigerant outlet side of a condenser. A bypass passage and a switching valve for opening and closing the bypass passage are provided so that high-temperature refrigerant discharged from a compressor is introduced into an evaporator while bypassing the condenser in a defrosting operation. When the defrosting operation is set, the switching valve is opened while a fan for blowing cool air to the condenser is operated. A part of refrigerant discharged from the compressor flows into the evaporator to remove frost on a surface of the evaporator.
摘要翻译： 具有喷射器的喷射器循环包括用于减压制冷剂的喷嘴。 用于存储制冷剂的接收器设置在冷凝器的制冷剂出口侧。 设置有用于打开和关闭旁通通道的旁路通道和切换阀，以使从压缩机排出的高温制冷剂在除霜操作中绕过冷凝器而被引入蒸发器。 当除霜操作被设定时，切换阀打开，而用于向冷凝器吹入冷空气的风扇被操作。 从压缩机排出的制冷剂的一部分流入蒸发器以除去蒸发器表面上的霜。
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公开(公告)号：US07870758B2
公开(公告)日：2011-01-18
申请号：US10880046
申请日：2004-06-29
IPC分类号： F25B1/06
CPC分类号： F25B41/00 , B60H2001/3298 , F25B9/008 , F25B2309/061 , F25B2341/0011 , F25B2341/0012 , F25B2341/0013 , F25B2400/0411 , F25B2500/16 , F25B2700/171 , F25B2700/2104 , F25B2700/2106 , F25B2700/2117 , F25B2700/21171
摘要： In an ejector cycle with an ejector including a nozzle for decompressing refrigerant, a control unit controls an air blowing amount of an evaporator fan so that a flow speed of refrigerant flowing in an evaporator becomes in a predetermined flow speed range. Therefore, it can prevent a large amount of lubrication oil from staying in the evaporator, and thereby the lubrication oil can sufficiently returns to a compressor. For example, the control unit includes a determining means for determining the predetermined flow speed range based on at least one of an atmosphere temperature of a condenser, a temperature of air supplied to the evaporator and a flow amount of refrigerant discharged from the compressor.
摘要翻译： 在具有喷出器的喷射器的喷射器周期中，喷射器包括用于减压制冷剂的喷嘴，控制单元控制蒸发器风扇的空气吹送量，使得在蒸发器中流动的制冷剂的流速变得处于预定的流速范围。 因此，可以防止大量的润滑油停留在蒸发器中，从而润滑油能够充分地返回到压缩机。 例如，控制单元包括确定装置，用于基于冷凝器的气氛温度，供给到蒸发器的空气的温度和从压缩机排出的制冷剂的流量中的至少一个来确定预定流速范围。
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公开(公告)号：US06978637B2
公开(公告)日：2005-12-27
申请号：US10855900
申请日：2004-05-27
CPC分类号： F25B9/008 , F25B41/00 , F25B2309/06 , F25B2341/0012 , F25B2500/11
摘要： In an ejector cycle with an ejector including a nozzle for decompressing refrigerant, an insulation member is provided on an outer surface of the ejector to suppress a heat exchange with an external side. When a suction portion of the ejector is insulated by the insulation member, pressure loss in the suction portion can be reduced, a gas refrigerant ratio at an inlet port of the mixing portion can be reduced, and a liquid refrigerant amount to be supplied to the evaporator can be increased. In addition, when a mixing portion and a diffuser portion of the ejector are insulated, it can prevent liquid refrigerant from being excessively evaporated. As a result, it can effectively restrict heat loss due to a heat exchange in the ejector with the external side.
摘要翻译： 在具有喷射器的喷射器循环中，喷射器包括用于减压制冷剂的喷嘴，绝缘构件设置在喷射器的外表面上，以抑制与外侧的热交换。 当喷射器的吸入部分被绝缘部件绝缘时，可以减小吸入部分的压力损失，可以减少混合部分的入口处的气体制冷剂比率，并将液体制冷剂量供给到 蒸发器可以增加。 此外，当喷射器的混合部分和扩散器部分被绝缘时，可以防止液体制冷剂过度蒸发。 结果，能够有效地限制由外部的喷射器的热交换引起的热损失。
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公开(公告)号：US07131292B2
公开(公告)日：2006-11-07
申请号：US11055381
申请日：2005-02-10
IPC分类号： F25B1/06
CPC分类号： F25B43/00 , F25B41/00 , F25B2341/0012 , F25B2400/02 , F25B2400/23
摘要： A fluid in the state of two phase containing gas and liquid, which flows into the separating space, is revolved along an inner wall of the separating space and a liquid flow outlet is opened toward a revolving flow of the fluid and arranged in a lower portion of the separating space. The liquid-phase fluid which is a part of the revolving flow of the fluid flows out through the liquid flow outlet.
摘要翻译： 流入分离空间的包含气体和液体的两相状态的流体沿着分离空间的内壁旋转，并且液体流出口朝向流体的旋转流动打开并且布置在下部 的分离空间。 作为流体的旋转流的一部分的液相流体通过液体流出口流出。
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公开(公告)号：US20050178149A1
公开(公告)日：2005-08-18
申请号：US11055381
申请日：2005-02-09
CPC分类号： F25B43/00 , F25B41/00 , F25B2341/0012 , F25B2400/02 , F25B2400/23
摘要： A fluid in the state of two phase containing gas and liquid, which flows into the separating space, is revolved along an inner wall of the separating space and a liquid flow outlet is opened toward a revolving flow of the fluid and arranged in a lower portion of the separating space. The liquid-phase fluid which is a part of the revolving flow of the fluid flows out through the liquid flow outlet.
摘要翻译： 流入分离空间的包含气体和液体的两相状态的流体沿着分离空间的内壁旋转，并且液体流出口朝向流体的旋转流动打开并且布置在下部 的分离空间。 作为流体的旋转流的一部分的液相流体通过液体流出口流出。
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公开(公告)号：US20050028552A1
公开(公告)日：2005-02-10
申请号：US10909547
申请日：2004-08-03
CPC分类号： F25B31/004 , F25B41/00 , F25B2341/0012 , F25B2400/0401 , F25B2400/075 , F25B2400/23 , F25B2500/26 , F25B2500/27 , F25B2600/2501 , F25B2700/171 , F25B2700/21175
摘要： A bypass valve 81 is opened until a predetermined period of time elapses after compressors 10a, 10b are stopped so as to equalize the pressure of a refrigerant circuit on a condenser 20 side with the pressure of a refrigerant circuit on an evaporator 30 side and, after the bypass valve 81 is closed, at least either of a refrigerant circuit 91 connecting to the compressor 10aand a refrigerant circuit 92 connecting to the compressor 10b is opened by opening a three-way valve 90 so that the refrigerant circuit on the condenser 20 side is made to communicate with the refrigerant circuit on the evaporator 30 side via the compressor 10 whereby, as the pressure equalized state can be maintained, it is possible to prevent the accumulation of a large amount of refrigerating machine oil on suction sides of the compressors 10 while the compressors 10 are stopped, thereby making it possible to prevent damage to the compressors 10 due to excessive compression when activated.
摘要翻译： 在压缩机10a，10b停止之后，旁通阀81打开直到经过了预定时间，以使冷凝器20侧的制冷剂回路的压力与蒸发器30侧的制冷剂回路的压力相等，之后 旁通阀81关闭，通过打开三通阀90来打开与压缩机10a连接的制冷剂回路91和与压缩机10b连接的制冷剂回路92中的至少一个，使得冷凝器20侧的制冷剂回路为 经由压缩机10与蒸发器30侧的制冷剂回路连通，由此，能够保持压力均衡状态，能够防止大量的冷冻机油在压缩机10的吸入侧积聚，同时 压缩机10停止，从而可以防止当激活时由于过度压缩而对压缩机10造成的损坏。
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公开(公告)号：US07707849B2
公开(公告)日：2010-05-04
申请号：US11659620
申请日：2006-04-04
申请人： Naohisa Ishizaka , Hirotsugu Takeuchi , Yoshiaki Takano , Mika Gocho , Hiroshi Oshitani , Haruyuki Nishijima , Makoto Ikegami , Naoki Yokoyama , Etsuhisa Yamada
发明人： Naohisa Ishizaka , Hirotsugu Takeuchi , Yoshiaki Takano , Mika Gocho , Hiroshi Oshitani , Haruyuki Nishijima , Makoto Ikegami , Naoki Yokoyama , Etsuhisa Yamada
CPC分类号： F28D1/05391 , B60H2001/3298 , F24F3/153 , F25B39/02 , F25B41/00 , F25B2341/0011 , F25B2341/0012 , F25B2400/23 , F25B2500/01 , F25B2500/18 , F25B2700/21151 , F28F9/0204
摘要： A first evaporator connected to an outlet side of an ejector, a second evaporator connected to a refrigerant suction port of the ejector, a throttle mechanism arranged on an inlet side of a refrigerant flow of the second evaporator and for reducing the pressure of the refrigerant flow are provided. Furthermore, the ejector, the first evaporator, the second evaporator and the throttle mechanism are assembled integrally with each other to construct an integrated unit having one refrigerant inlet and one refrigerant outlet. Hence, mounting performance of an ejector type refrigeration cycle can be improved.
摘要翻译： 连接到喷射器的出口侧的第一蒸发器，连接到喷射器的制冷剂吸入口的第二蒸发器，设置在第二蒸发器的制冷剂流的入口侧并用于降低制冷剂流的压力的节气门机构 被提供。 此外，喷射器，第一蒸发器，第二蒸发器和节流机构彼此一体地组装以构造具有一个制冷剂入口和一个制冷剂出口的集成单元。 因此，能够提高喷射式制冷循环的安装性能。
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公开(公告)号：US20080098757A1
公开(公告)日：2008-05-01
申请号：US11977479
申请日：2007-10-25
CPC分类号： F25B41/00 , B60H2001/3298 , F25B5/02 , F25B40/00 , F25B2341/0011 , F25B2700/21175
摘要： In a refrigerant cycle device having an ejector, a branch portion for branching a flow of refrigerant flowing out of the ejector into at least a first refrigerant stream and a second refrigerant stream is located. A first evaporator for evaporating the refrigerant of the first refrigerant stream is located to allow the refrigerant to flow to a suction side of the compressor, and a second evaporator for evaporating the refrigerant of the second refrigerant stream is located to allow the refrigerant to flow to an upstream side of a refrigerant suction port of the ejector. In addition, the branch portion is located to maintain a dynamic pressure of the refrigerant flowing out of the ejector, and the second evaporator is connected to the branch portion in a range where the dynamic pressure can be applied to an inside of the second evaporator.
摘要翻译： 在具有喷射器的制冷剂循环装置中，设置有用于将从喷射器流出的制冷剂流分流成至少第一制冷剂流和第二制冷剂流的分支部。 定位用于蒸发第一制冷剂流的制冷剂的第一蒸发器以允许制冷剂流到压缩机的吸入侧，并且用于蒸发第二制冷剂流的制冷剂的第二蒸发器被定位成允许制冷剂流到 喷射器的制冷剂吸入口的上游侧。 此外，分支部分被定位成保持流出喷射器的制冷剂的动态压力，并且第二蒸发器在可以将动态压力施加到第二蒸发器的内部的范围内连接到分支部分。
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