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公开(公告)号：US20180149397A1
公开(公告)日：2018-05-31
申请号：US15825287
申请日：2017-11-29
申请人： DC Engineering, P.C.
CPC分类号： F25B49/027 , F25B5/02 , F25B41/04 , F25B41/062 , F25B49/02 , F25B2313/031 , F25B2341/065 , F25B2341/066 , F25B2400/0751 , F25B2600/0251 , F25B2600/2513 , F25B2700/2106 , F25B2700/21162 , F25B2700/21163 , F25B2700/21175 , Y02B30/72
摘要： A method and system for improving energy efficiency of a refrigeration system include system components such as a condenser, one or more expansion valves, an evaporator, one or more compressors, and a system controller electrically coupled to the one or more of the system components, according to one embodiment. The system controller is configured to selectively actuate, directly or indirectly, the one or more expansion valves, the condenser, and/or the one or more compressors, at least partially based on temperatures and/or pressures of the system fluid at various points of the system, to control a temperature of a refrigerated area.
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公开(公告)号：US09951984B2
公开(公告)日：2018-04-24
申请号：US14264696
申请日：2014-04-29
申请人： Carrier Corporation
CPC分类号： F25B49/02 , F25B6/00 , F25B2400/0751 , F25B2600/111 , F25B2600/112 , Y02B30/743
摘要： A refrigeration system including a first compressor and a second compressor, operating in tandem, wherein the first compressor includes a compression capacity different than the compression capacity of the second compressor. A method for operating a refrigeration system including a first compressor and a second compressor operating in tandem; wherein the first compressor comprises a first compression capacity and the second compressor comprises a second compression capacity larger than the first compression capacity the method comprising the steps of: determining a cooling demand; operating the first compressor in a first stage of cooling; operating the second compressor in a second stage of cooling; and operating the first compressor and the second compressor in a third stage of cooling.
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公开(公告)号：US20180003423A1
公开(公告)日：2018-01-04
申请号：US15706392
申请日：2017-09-15
CPC分类号： F25B49/022 , F04C18/0215 , F04C23/001 , F04C23/008 , F04C28/02 , F04C28/065 , F04C29/04 , F04C2230/604 , F04C2240/81 , F25B1/04 , F25B2400/06 , F25B2400/0751 , F25B2600/0251
摘要： A plurality of scroll compressors with different fixed volume indexes are connected in fluid parallel circuit and configured to selectively operate to maximize isentropic efficiency at different condensing temperatures. Different quantities of scroll compressors of different volume indexes may be selected based upon typical climate or geographic location environmental conditions to attempt to maximize efficiency. A controller may selectively operate different combinations of the compressors of different volume indexes bases up load demands and condensing temperature conditions, which may be determined in a variety of ways.
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公开(公告)号：US09746218B2
公开(公告)日：2017-08-29
申请号：US11848297
申请日：2007-08-31
CPC分类号： F25B41/00 , F25B1/04 , F25B49/022 , F25B2400/0401 , F25B2400/0409 , F25B2400/075 , F25B2400/0751 , F25B2400/13 , F25B2600/2509 , F25B2600/2513
摘要： An economized refrigeration system includes a main refrigerant circuit having a condenser, an evaporator, an economizer, an expansion device intermediate the condenser and the economizer, and a main compressor fluidly connected by a main refrigerant line. The system also includes an economized refrigerant circuit including an auxiliary compressor system and an auxiliary refrigerant line fluidly connecting the economizer to the auxiliary compressor system and fluidly connecting the main refrigerant line to the auxiliary compressor at a location intermediate the main compressor system and the condenser. The auxiliary compressor system is independently controllable with respect to the main compressor system.
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公开(公告)号：US20170227266A1
公开(公告)日：2017-08-10
申请号：US15426216
申请日：2017-02-07
CPC分类号： F25B39/00 , F25B39/028 , F25B41/003 , F25B2400/0751 , F28D1/0417 , F28D1/0443 , F28D2021/0071 , F28F9/0275 , F28F2260/02
摘要： Apparatuses, systems and methods implementing a multi-coil heat exchanger are directed to providing good heat transfer performance, capacity, and efficiency, and while reducing pressure drop through multi-coil microchannel evaporators. The multi-coil heat exchanger in some examples is a multi-coil microchannel evaporator. The multi-coil microchannel evaporator can be implemented in a refrigerant system that is a single circuit, where the multi-coil microchannel evaporator is an air to refrigerant type heat exchanger. The multi-coil microchannel evaporator includes a distribution to the multiple coils of the multi-coil microchannel evaporator, where the distribution includes one or more separations to transmit refrigerant to each of the coils of the multi-coil microchannel evaporator and one or more junctions to transmit refrigerant from the coils.
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6.发明申请公开(公告)号：US20170191475A1
公开(公告)日：2017-07-06
申请号：US15461927
申请日：2017-03-17
发明人： John Qianghua Zhou , Roger Joseph Voorhis , Caleb Ryan Joiner , Benjamin Hayes , James Philip Crolius , William Hansen
CPC分类号： F04B49/065 , F04B27/14 , F04B49/20 , F04B2203/0209 , F04B2205/11 , F04C28/08 , F04C2270/051 , F04D27/004 , F04D27/0269 , F25B49/022 , F25B2400/0751 , F25B2600/0251 , F25B2600/0253 , Y02B30/741
摘要： A system and method for controlling a system that includes fixed speed and variable speed compressors are described. The method generally allows the system, for example, a heating, ventilating, and air condition (HVAC) system that includes fixed speed and variable speed compressors, to maximize unit modulating capability. The method allows the use of a variable speed compressor that is relatively smaller, which can lead to cost savings, easier installation, manufacturing, etc.
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公开(公告)号：US09464836B2
公开(公告)日：2016-10-11
申请号：US13739582
申请日：2013-01-11
CPC分类号： F25B49/022 , F25B13/00 , F25B2313/02741 , F25B2400/0751 , F25B2500/26 , F25B2600/0253 , F25B2600/0261 , F25B2700/1931 , F25B2700/1933 , F25B2700/2104 , F25B2700/2106 , Y02B30/741
摘要： An air conditioner having a plurality of compressors and a starting control method thereof, where the plurality of compressors is simultaneously started if a starting load of the air conditioner is smaller than a reference load, and the plurality of compressors is sequentially started if the starting load of the air conditioner is larger than the reference load, thereby simultaneously starting the plurality of compressors at a starting load section in which a starting stability of the compressors is secured, and thus capable of enhancing the cooling and heating performance.
摘要翻译： 具有多个压缩机的空调机及其启动控制方法，其中如果空调器的起动负荷小于参考负载，则同时启动多个压缩机，并且如果启动负载 空气调节器的压力大于参考负荷，从而在确保压缩机起动稳定性的起动负荷部分同时启动多个压缩机，从而能够提高冷却和加热性能。
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公开(公告)号：US09267720B2
公开(公告)日：2016-02-23
申请号：US13432314
申请日：2012-03-28
申请人： Bongsoo Choi
发明人： Bongsoo Choi
CPC分类号： F25B49/022 , F25B1/10 , F25B13/00 , F25B47/022 , F25B2313/006 , F25B2313/0233 , F25B2313/02741 , F25B2400/0751 , F25B2400/13 , F25B2600/021 , F25B2600/0261 , F25B2600/2509 , F25B2700/1931 , F25B2700/1933 , Y02B30/741
摘要： An air conditioner may include an indoor device and an outdoor device. The outdoor device may include a plurality of compressors, a plurality of bypass tubes respectively connected to the plurality of compressors, and a plurality of bypass valves respectively provided to the bypass tubes. When at least one of the plurality of compressors is stopped during operation of the air conditioner and the plurality of compressors, a bypass valve corresponding to the stopped compressor may be opened to equalize an internal pressure of the stopped compressor to facilitate a re-start of operation of the stopped compressor without adversely affecting overall performance of the air conditioner.
摘要翻译： 空调可以包括室内装置和室外装置。 室外机可以包括多个压缩机，分别连接到多个压缩机的多个旁通管，以及分别设置到旁路管的多个旁通阀。 当多个压缩机中的至少一个在空调器和多个压缩机的运行期间停止时，可以打开与停止的压缩机相对应的旁通阀来均衡停止的压缩机的内部压力，以便于重启 停止的压缩机的操作而不会不利地影响空调的整体性能。
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公开(公告)号：US20150230367A1
公开(公告)日：2015-08-13
申请号：US14693478
申请日：2015-04-22
申请人： Liebert Corporation
发明人： John F. JUDGE , Timothy J. SCHRADER , Stephen SILLATO , Roger NOLL , Gary A. HELMINK , Pierpaolo BARBATO , Giuseppe Dalla MANA , Lou MONNIER , Zhiyong LIN , Benedict J. DOLCICH , Daniel J. SCHUTTE , Greg HAGGY
CPC分类号： H05K7/20836 , F24F1/022 , F24F3/044 , F24F11/46 , F25B25/00 , F25B41/00 , F25B41/043 , F25B45/00 , F25B49/02 , F25B49/022 , F25B2400/06 , F25B2400/0751 , F25B2500/31 , F25D17/06 , H05K7/20827
摘要： A cooling system has a cabinet and a plurality of separate cooling stages including an upstream cooling stage and a downstream cooling stage. At least the upstream cooling state is a variable capacity cooling stage. Each cooling stage has a cooling circuit. Evaporators of the cooling circuits are arranged in the cabinet so that air passes over them in serial fashion. A controller when a Call for Cooling first reaches a point where cooling is needed, operating the upstream cooling circuit to provide cooling and not the downstream cooling circuit. When the Call for Cooling has increased to a second point, the controller additionally operates the downstream cooling circuit to provide cooling. The cooling capacity at which the upstream cooling circuit is being operated is less than its full capacity when the Call for Cooling reaches the second point.
摘要翻译： 冷却系统具有机柜和多个单独的冷却级，包括上游冷却级和下游冷却级。 至少上游冷却状态是可变容量冷却阶段。 每个冷却阶段都有一个冷却回路。 冷却回路的蒸发器布置在机柜中，使得空气以串联的方式穿过它们。 当冷却呼叫首先到达需要冷却的点时，控制器操作上游冷却回路以提供冷却而不是下游冷却回路。 当冷却呼叫增加到第二点时，控制器另外操作下游冷却回路以提供冷却。 上游冷却回路正在运行的冷却能力小于其致冷要求达到第二点的全部容量。
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公开(公告)号：US20130145781A1
公开(公告)日：2013-06-13
申请号：US13818457
申请日：2012-04-27
申请人： Lucy Y. Liu
发明人： Lucy Y. Liu
IPC分类号： F25B1/00
CPC分类号： F25B1/00 , F25B1/02 , F25B9/008 , F25B49/022 , F25B2400/075 , F25B2400/0751 , F25B2600/021 , F25B2600/024 , Y02B30/741
摘要： A refrigeration system (20) has a first compressor (24) and a second compressor (26). The second compressor has at least a first condition t least partially in parallel with the first compressor along a refrigerant flowpath. A heat rejection heat exchanger (50) is downstream of the first and second compressors along the refrigerant flowpath. An expansion device (54) is downstream of the heat rejection heat exchanger along the refrigerant flowpath. A heat absorption heat exchanger (56) is downstream of the expansion device along the refrigerant flowpath. The first compressor is a variable speed compressor coupled to a variable speed drive (32). The second compressor is a fixed speed compressor.
摘要翻译： 制冷系统（20）具有第一压缩机（24）和第二压缩机（26）。 第二压缩机具有至少部分地沿制冷剂流路与第一压缩机平行的第一状态。 排热热交换器（50）沿着制冷剂流动路径在第一和第二压缩机的下游。 膨胀装置（54）沿着制冷剂流动路径在排热热交换器的下游。 吸热热交换器（56）沿着制冷剂流路在膨胀装置的下游。 第一压缩机是连接到变速驱动器（32）的变速压缩机。 第二压缩机是固定速度压缩机。
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