| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Freezer | US10539070 | 2004-10-05 | US20060123835A1 | 2006-06-15 | Masaaki Takegami; Kenji Tanimoto; Takeo Ueno; Akihiro Kajimoto |
| In the case where a 100 percent heat recovery operation mode is performed without using an outdoor heat exchanger in a refrigeration apparatus which is provided with utilization-side heat exchangers of a plurality of piping systems and in which liquid-side communication lines are arranged into a single line, a backflow prevention mechanism (37) for preventing liquid refrigerant exiting an indoor heat exchanger (41) from flowing in a direction other than in the direction of cold storage and freeze storage heat exchangers (45, 51) is disposed for providing stable flow of refrigeration through the circuit even when the temperature of outside air is low, whereby the capability to provide refrigeration is prevented from degrading. | ||||||
| 162 | Refrigerating machine and intermediate-pressure receiver | US11151545 | 2005-06-14 | US20050279128A1 | 2005-12-22 | Masahisa Otake; Hiroshi Mukaiyama; Koji Sato; Kunie Sekigami; Kazuaki Shikichi |
| A refrigerating machine equipped with a compressor 2 having an intermediate-pressure portion 2M in which refrigerant having intermediate pressure higher than the pressure of the refrigerant at the suction side thereof and lower than the pressure of the refrigerant at the discharge side thereof can be introduced, and an intermediate-pressure receiver 28 that is inserted in a flow path between an expansion valve 27a (27b) of a heat source side heat exchanger 3a (3b) and an expansion valve 18a (18b) of a using side heat exchanger 6a (6b), carries out gas-liquid separation on gas-liquid mixed refrigerant after the heat exchange in the heat source side heat exchanger or the using side heat exchanger, and then feeds gas-phase refrigerant to the intermediate-pressure portion 2M. | ||||||
| 163 | Multi-type air conditioner | US10682972 | 2003-10-14 | US06918264B2 | 2005-07-19 | Jong Han Park; Young Min Park; Chang Seon Lee; Sung Oh Choi; Sung Chun Kim; Seung Yong Chang; Seok Ho Yoon |
| Multi-type air conditioner including an outdoor unit having a compressor, an outdoor heat exchanger, a flow path control valve for controlling a flow path of the refrigerant from the compressor, an outdoor expansion device for expanding liquid refrigerant introduced thereto in a condensed state via indoor units and providing to the outdoor heat exchanger when the room is heated, and an outdoor unit piping system, a plurality of indoor units each having an indoor expansion device, an indoor heat exchanger, and an indoor piping system, a distributor for selectively distributing the refrigerant from the outdoor unit to the indoor units and returning to the outdoor unit again proper to respective operation modes, and means for super cooling the refrigerant condensed at the outdoor heat exchanger or the indoor heat exchangers and flowed to the indoor expansion devices or to the outdoor expansion device, thereby super cooling the refrigerant supplied to the evaporator. | ||||||
| 164 | Heat source unit of air conditioner and air conditioner | US10508569 | 2003-03-28 | US20050150243A1 | 2005-07-14 | Shinya Matsuoka; Shinri Sada; Hiroyuki Inoue; Hiroshi Fuchikami; Atsushi Umeda |
| The present invention provides a heat source unit capable of being used in either an air conditioner for switchable cooling and heating operation or an air conditioner for simultaneous cooling and heating operation. An air conditioner principally includes one heat source unit, a plurality of utilization units, and a connecting unit provided for each utilization unit. The heat source unit uses water as the heat source, and principally includes a compressing means, a main heat exchanger, a first switching means, a main refrigerant switching means, an auxiliary heat exchanger connected in parallel with the main heat exchanger, a second switching means, an auxiliary refrigerant switching means, and a liquid receiver. The auxiliary heat exchanger is capable of switching between functioning as an evaporator and a condenser, by the second switching means. | ||||||
| 165 | Refrigeration equipment | US10489297 | 2003-07-02 | US20050115271A1 | 2005-06-02 | Masaaki Takegami; Kenji Tanimoto |
| In a refrigerating apparatus in which a plurality of application-side heat exchangers (41, 45, 51) are connected to a heat-source side heat exchanger (4), liquid lines for a plurality of channels in a refrigerant circuit (1E) share a liquid side communication pipe (11) in order to reduce the number of pipes. Further, the liquid side communication pipe (11) is provided adjacent to a low-pressure gas side communication pipe (15) for at least one channel so as to contact it in order to supercool a liquid refrigerant by a low-pressure gas refrigerant. Thus, workability for connecting the pipes is improved and a refrigerating ability may not be decreased even if communication pipes (11, 15, 17) become long. | ||||||
| 166 | Multiform gas heat pump type air conditioning system | US10175801 | 2002-06-21 | US06883342B2 | 2005-04-26 | Tadahiro Kato; Tsukasa Kasagi |
| There is provided a multiform gas heat pump type of air conditioning system having: a plurality of indoor units that are each provided with an indoor heat exchanger and that perform a heat exchange between air inside a room and refrigerant; an outdoor unit provided with a compressor driven by a gas engine and an outdoor heat exchanger for performing a heat exchange between outside air and the refrigerant; and a split flow control unit for controlling a flow direction of the refrigerant in each of the indoor units and for performing a selection switching between cooling and heating operations. The outdoor heat exchanger that switches selection between cooling and heating operations is divided into a plurality of units that are connected in parallel and there is also provided a refrigerant supply switching means that controls the refrigerant flow in each of the divided portions of the outdoor heat exchanger. | ||||||
| 167 | Multi-type air conditioner | US10682972 | 2003-10-14 | US20040134215A1 | 2004-07-15 | Jong Han Park; Young Min Park; Chang Seon Lee; Sung Oh Choi; Sung Chun Kim; Seung Yong Chang; Seok Ho Yoon |
| Multi-type air conditioner including an outdoor unit having a compressor, an outdoor heat exchanger, a flow path control valve for controlling a flow path of the refrigerant from the compressor, an outdoor expansion device for expanding liquid refrigerant introduced thereto in a condensed state via indoor units and providing to the outdoor heat exchanger when the room is heated, and an outdoor unit piping system, a plurality of indoor units each having an indoor expansion device, an indoor heat exchanger, and an indoor piping system, a distributor for selectively distributing the refrigerant from the outdoor unit to the indoor units and returning to the outdoor unit again proper to respective operation modes, and means for super cooling the refrigerant condensed at the outdoor heat exchanger or the indoor heat exchangers and flowed to the indoor expansion devices or to the outdoor expansion device, thereby super cooling the refrigerant supplied to the evaporator. | ||||||
| 168 | Multi-type air conditioner | US10713250 | 2003-11-17 | US20040134214A1 | 2004-07-15 | Jin Seob Song; Se Dong Chang |
| Multi-type air conditioner including an outdoor unit having a compressor, an outdoor heat exchanger, a flow path control valve for controlling a flow path of the refrigerant from the compressor, and an outdoor unit piping system, a plurality of indoor units each having an indoor expansion device, an indoor heat exchanger, and an indoor piping system, a distributor for selectively distributing the refrigerant from the outdoor unit to the indoor units and returning to the outdoor unit again proper to respective operation modes, and noise preventing means on pipelines respectively connected to the indoor units to cut off refrigerant flow into inoperative indoor units when the air conditioner is in operation, for preventing occurrence of refrigerant flow noise at the inoperative indoor units. | ||||||
| 169 | Multi-air conditioner and operation method thereof | US10643912 | 2003-08-20 | US20040035135A1 | 2004-02-26 | Jong Han Park; Young Min Park; Chang Seon Lee; Sung Oh Choi |
| Disclosed is a multi-air conditioner in which heating and cooling operations are performed at the same time, the number of connection pipes connecting outdoor unit and distributor is simplified to three to flow a specific pressure and phase refrigerant through each connection pipe regardless of operation condition. The air conditioner includes: an outdoor unit installed at an outdoor location, and having therein a compressor and an outdoor heat exchanger; a plurality of indoor units respectively installed at indoor rooms, each of the indoor units having therein an electronic expansion valve and an indoor heat exchanger; a distributor provided between the outdoor unit and the plurality of indoor units, for selectively guiding a refrigerant introduced from the outdoor unit to the plurality of indoor units according to an operation condition; a four-way valve provided on an outlet side of the compressor, for selectively switching a flow direction of the refrigerant flowing through the outdoor heat exchanger; a first connection pipe branched from a pipe connecting an inlet side of the compressor with the four-way valve, for connecting the distributor to guide the refrigerant; a second connection pipe for connecting the outdoor heat exchanger with the distributor to guide the refrigerant; and a selective expansion apparatus provided on the third connection pipe and including a heating electronic expansion unit for selectively expanding the refrigerant. | ||||||
| 170 | Simultaneous heating and cooling operation type multi-air conditioner | US10643911 | 2003-08-20 | US20040035133A1 | 2004-02-26 | Jong Han Park; Young Min Park; Chang Seon Lee |
| Disclosed is a multi-air conditioner comprising: an outdoor unit installed at an outdoor location and exchanging heat with an outdoor air, a plurality of indoor units installed at respective indoor rooms and provided therein with an indoor heat exchanger and an electronic expansion valve, and a distributor provided between the outdoor unit and the indoor units, for selectively guiding the refrigerant according to the operation mode. The outdoor unit is comprised of a compressor, a refrigerant flow control part for controlling a flow path of a compressed refrigerant according to an operation mode, an outdoor heat exchanger exchanging heat with the outdoor air, and a pipe part connecting the elements of the outdoor unit and guiding the refrigerant to the distributor. The distributor guides the refrigerant selectively to the outdoor unit and the indoor units according to the operation mode. | ||||||
| 171 | Multi-system air conditioner | US558152 | 1990-07-26 | US5009077A | 1991-04-23 | Seiji Okoshi; Eiji Kuwahara |
| The air conditioner is disclosed which determines a stop mode of an outdoor heat exchanger when a difference between a total of a heating power level or levels requested from one or more indoor units and a total of a cooling power level or levels requested from one or more remaining indoor units falls within a predetermined range and, when the stop mode of the outdoor heat exchanger is set, forcedly recovers a regrigerant which is accumulated on the outdoor heat exchanger back to a compressor. | ||||||
| 172 | Air conditioner with oil separator and injection control thereof | US15012927 | 2016-02-02 | US10145593B2 | 2018-12-04 | Seungjun Lee; Juhyeong Lee |
| An air conditioner is provided. The air conditioner may include a subcooling heat exchanger that evaporates a refrigerant, a compressor that compresses the refrigerant, an injection flow channel through which the evaporated refrigerant flows into the compressor, an injection valve that opens and closes the injection flow channel, an oil separator that separates oil from refrigerant discharged from the compressor, and an oil injection line, which communicates at a first end thereof with the oil separator and at a second end thereof with the injection flow channel so as to guide the oil separated by the oil separator toward the injection flow channel. The oil separated by the oil separator may selectively flow into the compressor through the oil injection line and the injection flow channel in accordance with a mode of operation of the air conditioner. | ||||||
| 173 | VARIABLE REFRIGERANT FLOW SYSTEM | US15329821 | 2015-12-22 | US20180340700A1 | 2018-11-29 | Junwei CHEN; Guozhong YANG |
| A multi-split system includes an outdoor unit, a distribution device, a plurality of indoor units. Each indoor unit includes an indoor heat exchanger and a throttling element, and the distribution device includes a plurality of first controlling valves and a plurality of second controlling valves corresponding to each indoor unit. When any one of the plurality of indoor units receives a mode switching instruction, the 20 indoor unit sends the mode switching instruction to the distribution device. The distribution device determines on or off statuses of a first on/off valve and a second on/off valve corresponding to the indoor unit according to the mode switching instruction. | ||||||
| 174 | AIR-CONDITIONING APPARATUS | US15755150 | 2015-10-26 | US20180259219A1 | 2018-09-13 | Yuji MOTOMURA |
| The air-conditioning apparatus includes: a refrigerant cycle circuit through which a heat source side refrigerant circulates; a plurality of heat medium cycle circuits through which a heat medium circulates, the plurality of heat medium cycle circuits including a plurality of use-side heat exchangers, the heat medium exchanging heat with the heat source side refrigerant of the refrigerant cycle circuit in intermediate heat exchangers; and a heat medium distribution device provided in one of the plurality of heat medium cycle circuits to which a plurality of the use-side heat exchangers are connected, the heat medium distribution device controlling flow rates of the heat medium of the plurality of use-side heat exchangers connected to the heat medium cycle circuit. | ||||||
| 175 | AIR CONDITIONER | US15296649 | 2016-10-18 | US20170108250A1 | 2017-04-20 | Chiwoo SONG; Pilhyun YOON; Kakjoong KIM; Jaehwa JUNG |
| An air conditioner is provided that may include at least one compressor that compresses a refrigerant to a high pressure; a plurality of heat exchanger that condenses the refrigerant compressed in the at least one compressor; a plurality of outdoor valves, respectively, provided at an outlet side pipe of the plurality of heat exchangers; a gas liquid separator that separates the refrigerant into gas and liquid refrigerants and supplies the gas refrigerant to the at least one compressor; and one or more bypass devices connected to the outlet side pipe of one or more of the plurality of heat exchangers and an inlet side pipe of the gas liquid separator, the one or more bypass devices controlling a flow of the liquid refrigerant. During a cooling low load operation in which a portion of the plurality of heat exchangers is operating, a liquid refrigerant loaded into a heat exchanger of the plurality of heat exchangers, which is not operated, may flow through the one or more bypass device. | ||||||
| 176 | REFRIGERANT CHANNEL SWITCHING UNIT | US15312104 | 2015-04-14 | US20170089623A1 | 2017-03-30 | Shigeki KAMITANI; Akihiro EGUCHI; Daiki KURITA |
| Provided is a refrigerant channel switching unit including a unit case having a case body and an electrical component box attached to the case body, and a channel switching valve housed in the unit case. The electrical component box is attachable to the case body at a first position, where the electrical component box blocks one of faces of the case body entirely, and a second position, where a maintenance opening is formed in a part of the one face of the unit case. The electrical component box may be retained temporarily at the second position so as to facilitate the maintenance of the channel switching valve. | ||||||
| 177 | Heat pump system | US13202372 | 2010-02-22 | US09581361B2 | 2017-02-28 | Masahiro Honda |
| A heat pump system includes a heat source unit, a discharge refrigerant communication tube, a liquid refrigerant communication tube, a gas refrigerant communication tube, a first usage unit and a second usage unit. The first usage unit has a first usage-side heat exchanger capable of functioning as a radiator of the heat-source-side refrigerant introduced from the discharge refrigerant communication tube. The first usage unit is capable of performing operation in which an aqueous medium is heated by radiation of the heat-source-side refrigerant in the first usage-side heat exchanger. The second usage unit has a second usage-side heat exchanger capable of functioning as an evaporator of the heat-source-side refrigerant introduced from the liquid refrigerant communication tube. The second usage unit is capable of performing operation in which an air medium is cooled by evaporation of the heat-source-side refrigerant in the second usage-side heat exchanger. | ||||||
| 178 | AGGREGATED CHANNEL SWITCHING UNIT AND METHOD OF MANUFACTURING SAME | US15103241 | 2014-12-03 | US20160356516A1 | 2016-12-08 | Akihiro EGUCHI; Shigeki KAMITANI |
| An aggregated channel switching unit is disposed between a heat source unit and a plurality of utilization units to switch flow of refrigerant in the refrigerant circuit. The aggregated channel switching unit including a plurality of first refrigerant pipes having switch valves, a plurality of second refrigerant pipes, and a casing accommodating the first and second pipes. The first and second pipes are aggregated as an assembly. The first pipes are connected to a high-low pressure gas communicating pipe and a suction gas communicating pipe extending from the heat source unit. The second refrigerant pipes are connected to a liquid communicating pipe extending from the heat source unit and a liquid pipe extending to the utilization units. Adjacent pairs of the first and second pipes extend approximately in parallel to each other at predetermined intervals in the assembly. The first and second pipes are alternately disposed in the assembly. | ||||||
| 179 | Multi-type air conditioner | US13550901 | 2012-07-17 | US09513034B2 | 2016-12-06 | Suk Ho Lee; Min Chang |
| A multi-type air conditioner includes an outdoor unit disposed at an exterior space, a plurality of indoor units disposed at interior spaces, and a mode conversion unit connected to the outdoor unit and the plurality of indoor units through refrigerant pipes to circulate a refrigerant between the outdoor unit and the plurality of indoor units. The mode conversion unit includes a plurality of subcooling units which are configured to subcool a refrigerant before the refrigerant is introduced to the plurality of indoor units, using a subcooling refrigerant pipe which sequentially passes through at least one of the plurality of subcooling units, so that a refrigerant after having passed through the subcooling unit, is in a state of pure gas while ensuring a desired subcooling degree that is suitable for each indoor unit. | ||||||
| 180 | System And Method Of Controlling A Variable Capacity Compressor | US15196084 | 2016-06-29 | US20160341460A1 | 2016-11-24 | Hung M. PHAM; Shane J. ANGLE; Edward J. TRUDEAU, Jr.; Chetan SOWANI |
| A working-fluid circuit may include an indoor heat exchanger, a variable-capacity compressor and a control module. The variable-capacity compressor pumps working fluid through the indoor heat exchanger. The control module may control the compressor and operate the compressor in one of a first capacity mode and a second capacity mode based on a demand signal, outdoor-air-temperature data and a compressor runtime. | ||||||
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