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1. 发明专利

JP2009174753A Heat exchanger and heat pump water heater 审中-公开
标题翻译：热交换器和热泵水加热器
公开(公告)号：JP2009174753A
公开(公告)日：2009-08-06
申请号：JP2008012564
申请日：2008-01-23
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： NANATANE TETSU , NOMOTO SO , IIJIMA HITOSHI
IPC分类号： F28D7/00 , F24H1/00 , F24H9/00
摘要： PROBLEM TO BE SOLVED: To provide an integrated compact heat exchanger low in radiation loss as a heat exchanger exchanging heat among three or more circuits in which heat mediums are circulated, and to provide a heat pump water heater using the heat exchanger. SOLUTION: This heat exchanger comprises a first flow channel 22 for circulating the first heat medium, a second flow channel 23 disposed near the first flow channel 22 for circulating the second heat medium, a third flow channel 24 disposed near the first flow channel 22 or the second flow channel 23 for circulating the third heat medium, and a heat conductive resin 25 integrally surrounding the first flow channel 22, the second flow channel 23 and the third flow channel 24, and heat can be exchanged between the first heat medium and the second heat medium between the first heat medium and the third heat medium, and between the second heat medium and the third heat medium. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种低热辐射损失的集成式紧凑型热交换器，作为在热介质循环的三个或更多个回路之间进行热交换的热交换器，并提供使用该热交换器的热泵热水器。解决方案：该热交换器包括用于循环第一热介质的第一流动通道22，设置在第一流动通道22附近用于循环第二热介质的第二流动通道23，设置在第一流动附近的第三流动通道24 通道22或用于使第三热介质循环的第二流动通道23和一体地围绕第一流动通道22，第二流动通道23和第三流动通道24的导热树脂25，并且可以在第一热量介质和第一热介质和第三热介质之间以及第二热介质和第三热介质之间的第二热介质。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2005083704A Refrigerating cycle and air conditioner 审中-公开
标题翻译：制冷循环和空调
公开(公告)号：JP2005083704A
公开(公告)日：2005-03-31
申请号：JP2003318502
申请日：2003-09-10
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： NANATANE TETSU , BABA MASANOBU
IPC分类号： F25B1/00 , F25B13/00
摘要： PROBLEM TO BE SOLVED: To provide a highly reliable refrigerating cycle, by securing an oil return quantity to a compressor, even when a two-layer separating state of a refrigerant and refrigerating machine oil is caused in an accumulator.
SOLUTION: A bypass circuit 10 is arranged for connecting a delivery pipe and a suction pipe of a compressor 1 via a bypassing two-way valve 11. A control device 21 detects the evaporation temperature Teva by an evaporation temperature thermistor 22 arranged in an outdoor heat exchanger 2 in heating operation, after receiving a starting command of the compressor 1, and estimates the liquid refrigerant temperature Tacc in the accumulator 6 from the evaporation temperature Teva, and controls so as to open the bypassing two-way valve 11 for a prescribed time, only when the estimated liquid refrigerant temperature Tacc in the accumulator 6 is less than the low temperature side two-layer separating temperature. Thus, a large quantity of refrigerating machine oil delivered from the compressor 1 returns to the suction pipe of the compressor 1 by passing through the bypass circuit 10, to thereby reduce a quantity of refrigerating machine oil staying by separating into two layers by flowing in the accumulator 6.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：即使当在蓄能器中产生制冷剂和冷冻机油的两层分离状态时，通过将回油量确保到压缩机来提供高度可靠的制冷循环。
解决方案：旁路回路10被布置成用于通过旁路二通阀11连接压缩机1的输送管和吸入管。控制装置21通过布置在其中的蒸发温度热敏电阻22检测蒸发温度Teva 在加热运转中的室外热交换器2，在接收到压缩机1的起动指令之后，从蒸发温度Teva推定蓄能器6的液体制冷剂温度Tacc，并且控制以打开旁通二通阀11 只有当储液器6中的估计液体制冷剂温度Tacc小于低温侧两层分离温度时，才达到规定时间。因此，从压缩机1输送的大量的冷冻机油通过旁通回路10返回到压缩机1的吸入管，从而通过在制冷机1中的流入而将分离成两层的冷冻机油的量减少蓄能器6.版权所有（C）2005，JPO＆NCIPI

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