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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: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: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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