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1.发明授权Refrigerant circulating apparatus and method of assembling a refrigerant circuit 失效制冷剂循环装置及组装制冷剂回路的方法
公开(公告)号：US5953934A
公开(公告)日：1999-09-21
申请号：US2395
申请日：1998-01-02
CPC分类号： F25B31/002 , F25B43/02
摘要： In a refrigerant circulating apparatus, a liquid accumulating container for allowing oil droplets to flow out in suspended form is connected between a condenser and a pressure reducing device. Thus, refrigerating machine oil which flowed out from a compressor can be reliably returned to the compressor, and proper lubricating and sealing functions can be maintained for the compressing elements.
摘要翻译： 在制冷剂循环装置中，在冷凝器和减压装置之间连接有用于使液滴以悬浮形式流出的液体积蓄容器。 因此，可以将从压缩机流出的制冷机油可靠地返回到压缩机，并且可以保持压缩元件的适当的润滑和密封功能。
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公开(公告)号：US10393419B2
公开(公告)日：2019-08-27
申请号：US14432847
申请日：2012-11-21
摘要： A controller, at least during the heating operation, controls the opening degree of a second expansion device and/or a third expansion device based on a discharge refrigerant temperature detected by a discharge refrigerant temperature detector, or a value computed using the discharge refrigerant temperature, and causes refrigerant having a quality equal to or greater than 0.9 and less than or equal to 0.99 to be suctioned into a compressor.
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公开(公告)号：US10018389B2
公开(公告)日：2018-07-10
申请号：US14361421
申请日：2011-12-22
CPC分类号： F25B49/02 , F25B1/10 , F25B13/00 , F25B29/003 , F25B41/043 , F25B49/027 , F25B2313/02741 , F25B2313/0312 , F25B2500/19 , F25B2600/021 , F25B2600/0271 , F25B2600/2513 , F25B2700/1931 , F25B2700/1933 , F25B2700/2106 , F25B2700/21151 , F25B2700/21152 , F25B2700/21163 , Y02B30/741
摘要： An air-conditioning apparatus including a refrigeration cycle configured by connecting one or more load-side units including a load-side heat exchanger and a load-side expansion device with a heat-source-side unit including a heat-source-side heat exchanger and a compressor and by causing refrigerant to circulate through a refrigerant circuit including the load-side heat exchanger, the load-side expansion device, the heat-source-side heat exchanger, and the compressor, controls, during a heating operation, the opening degree of the load-side expansion device, based on the discharge pressure of the compressor, so that the pressure of refrigerant at the outlet of the compressor becomes equal to a target pressure, in the case where the operation capacity of the compressor is approximately at the maximum value of the operation capacity of the compressor.
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公开(公告)号：US09958170B2
公开(公告)日：2018-05-01
申请号：US13499878
申请日：2009-10-22
申请人： Koji Yamashita , Hiroyuki Morimoto , Yuji Motomura
发明人： Koji Yamashita , Hiroyuki Morimoto , Yuji Motomura
IPC分类号： F25B7/00 , F25B1/00 , F25B49/00 , F25B1/10 , F25B39/04 , F24F3/06 , F25B25/00 , F25B13/00 , F25B45/00
CPC分类号： F24F3/06 , F24F3/065 , F24F11/83 , F25B7/00 , F25B13/00 , F25B25/005 , F25B45/00 , F25B2313/006 , F25B2313/0231 , F25B2313/02732 , F25B2313/02741 , F25B2500/07 , F25B2600/027 , F25B2600/0271 , F25B2600/0272
摘要： An air-conditioning apparatus includes indoor units including a plurality of use side heat exchangers that exchange heat between air and a heat medium, and a heat medium relay unit having a plurality of heat exchangers related to heat medium. A plurality of pumps deliver the heat medium involved in heating or cooling performed by the plurality of heat exchangers related to heat medium to each passage and circulate the heat medium. A plurality of heat medium flow switching devices perform switching so that the heat medium from a selected passage flows into and flows out of each use side heat exchanger. An expansion tank is connected to a passage alleviates a pressure change caused by a volumetric change of the heat medium, and a pressure equalizing pipe connects each inlet passage or each outlet passage of the heat medium sending devices.
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公开(公告)号：US09933205B2
公开(公告)日：2018-04-03
申请号：US14111795
申请日：2011-05-23
CPC分类号： F25D29/006 , F24F3/065 , F24F11/32 , F24F11/36 , F25B9/006 , F25B13/00 , F25B49/005 , F25B2313/006 , F25B2313/0231 , F25B2313/0233 , F25B2313/02741 , F25B2500/22
摘要： An outdoor unit is configured to include a compressor and a heat source side heat exchanger. Indoor units are configured to include first expansion devices and use side heat exchangers, and air-condition an air-conditioned space. Branching devices, connected by pipes to the outdoor unit by a plurality of main pipes and connected by pipes to each indoor unit by a plurality of branch pipes, are configured to branch a refrigerant from a side of the main pipes and circulate the refrigerant to the branch pipes, and converge the refrigerant from a side of the branch pipes and circulate the refrigerant to the main pipes. A refrigerant concentration detecting device is installed in a non-air-conditioned space. A shutoff valve control device is configured, upon determining that the refrigerant has leaked, to control shutoff devices and to shut off the refrigerant flows.
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公开(公告)号：US09816736B2
公开(公告)日：2017-11-14
申请号：US14349757
申请日：2012-01-24
申请人： Koji Yamashita
发明人： Koji Yamashita
CPC分类号： F25B29/003 , F25B7/00 , F25B9/006 , F25B13/00 , F25B25/005 , F25B2313/003 , F25B2313/0231 , F25B2600/2513
摘要： When a first temperature difference is the difference between an inlet temperature of a first refrigerant and an outlet temperature of the first refrigerant in the heat exchanger for heating, and a second temperature difference is the difference between an inlet temperature of a second refrigerant and an outlet temperature of the second refrigerant in the heat exchanger for heating, the difference between the first temperature difference and the second temperature difference is held in a predetermined value or less by controlling the opening degree of a second expansion device.
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公开(公告)号：US09759460B2
公开(公告)日：2017-09-12
申请号：US14236339
申请日：2012-08-15
IPC分类号： F25B41/00 , F25B41/04 , F25B27/00 , F25B13/00 , G05B15/00 , F25B29/00 , F25B30/02 , F25B49/02
CPC分类号： F25B30/02 , F25B13/00 , F25B25/005 , F25B49/02 , F25B2313/003 , F25B2313/0231 , F25B2313/02331 , F25B2313/02334 , F25B2313/0272 , F25B2313/02732 , F25B2313/02741 , F25B2313/0292 , F25B2313/0294 , F25B2313/0312 , F25B2313/0313 , F25B2313/0314 , F25B2313/0315 , F25B2341/0662 , F25B2600/2513 , F25B2700/1931 , F25B2700/21152
摘要： A channel on an upstream side of a third expansion device and a channel on an upstream side of a second expansion device are connected during a heating operation, and medium pressure refrigerant generated by the third expansion device during the heating operation is introduced on a suction side of a compressor via the second expansion device and a suction injection pipe.
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公开(公告)号：US09709304B2
公开(公告)日：2017-07-18
申请号：US14372092
申请日：2012-01-23
申请人： Naofumi Takenaka , Shinichi Wakamoto , Koji Yamashita , Hiroyuki Morimoto , Takeshi Hatomura , Katsuhiro Ishimura
发明人： Naofumi Takenaka , Shinichi Wakamoto , Koji Yamashita , Hiroyuki Morimoto , Takeshi Hatomura , Katsuhiro Ishimura
CPC分类号： F25B30/02 , F25B1/10 , F25B13/00 , F25B41/046 , F25B2313/005 , F25B2313/006 , F25B2313/0233 , F25B2313/0272 , F25B2313/02741 , F25B2400/13 , F25B2600/2509 , F25B2700/1931 , F25B2700/21152
摘要： An air-conditioning apparatus includes an outdoor-side flow rate control device (a fourth flow rate control device) that generates an intermediate pressure for injection into a compressor, and a bypass flow rate control device (a sixth flow rate control device) that is placed at a bypass pipe allowing bypassing of an outdoor heat exchanger in parallel to the outdoor-side flow rate control device and that controls the amount of heat exchange of the outdoor heat exchanger together with the outdoor-side flow rate control device.
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公开(公告)号：US09624647B2
公开(公告)日：2017-04-18
申请号：US14115282
申请日：2012-05-11
申请人： Koji Yamashita , Masayuki Komiyama , Kazushige Koiwai , Koji Ueda , Kengo Maeda
发明人： Koji Yamashita , Masayuki Komiyama , Kazushige Koiwai , Koji Ueda , Kengo Maeda
CPC分类号： E02F9/2296 , E02F9/123 , E02F9/2235 , E02F9/2285 , F15B9/03 , F15B9/14 , G05B11/14 , G05B2219/45012 , Y10T137/86027
摘要： A slewing-type working machine includes: a slewing motor which is a hydraulic motor for slewing; a variable-displacement hydraulic pump; a slewing operation device including an operation member; a control valve controlling the slewing motor based on an operation signal thereof; a pump regulator; a relief valve letting excess fluid to a tank; operation detectors detecting an operation direction and amount of the operation member; a motor rotational speed detector; and a controller controlling a discharge flow rate of the hydraulic pump. The controller obtains a deviation between a target rotational speed of the slewing motor obtained from a slewing operation amount and an actual rotational speed detected by the motor rotational speed detector, and controls the discharge flow rate to make the deviation closer to 0.
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公开(公告)号：US09574816B2
公开(公告)日：2017-02-21
申请号：US13641885
申请日：2010-05-26
申请人： Mamoru Hamada , Fumitake Unezaki , Akira Morikawa , Satoshi Ueyama , Koji Yamashita , Hiroyuki Morimoto , Yuji Motomura , Tetsuya Yamashita , Yusuke Otsubo
发明人： Mamoru Hamada , Fumitake Unezaki , Akira Morikawa , Satoshi Ueyama , Koji Yamashita , Hiroyuki Morimoto , Yuji Motomura , Tetsuya Yamashita , Yusuke Otsubo
CPC分类号： F25D21/08 , F24F11/42 , F24F13/222 , F25B47/02 , F25B49/02 , F25B2400/01 , F25B2700/111 , F25D21/02 , F25D21/14 , F25D2321/1413 , F25D2600/02
摘要： A refrigeration cycle that is formed by connecting a compressor, a condenser, an expansion valve, and an evaporator and that performs cooling operation; an evaporator heating device that heats the evaporator; a drain pan that receives drain-water from the evaporator and drains the drain-water; a drain-pan heating device that heats the drain pan; a frost detecting device including a light-emitting element that emits light to the evaporator and a light-receiving element that receives reflected light from the evaporator and outputs a voltage according to the reflected light; and a control device that controls on-off operation of the evaporator heating device and the drain-pan heating device. The control device determines a frosting condition on the evaporator from an output of the frost detecting device and individually controls the evaporator heating device and the drain-pan heating device in accordance with the determination result.
摘要翻译： 通过连接压缩机，冷凝器，膨胀阀和蒸发器并进行制冷运转而形成的制冷循环; 蒸发器加热装置，其加热蒸发器; 排水盘，其从蒸发器接收排水并排放排水; 排水盘加热装置，其加热排水盘; 一种霜检测装置，包括向蒸发器发光的发光元件和接收来自蒸发器的反射光的光接收元件，并根据反射光输出电压; 以及控制装置，其控制蒸发器加热装置和排水盘加热装置的开关动作。 所述控制装置根据所述判定结果，根据所述霜检测装置的输出，确定所述蒸发器的结霜状况，并分别控制所述蒸发器加热装置和所述排水盘加热装置。
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