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161. 发明申请

US20080110610A1 Pulse Width Modulation Or Variable Speed Control Of Fans In Refrigerant Systems 审中-公开
标题翻译：脉宽调制或制冷剂系统中风扇的变速控制
公开(公告)号：US20080110610A1
公开(公告)日：2008-05-15
申请号：US11794938
申请日：2005-12-29
申请人： Alexander Lifson , Michael F. Taras
发明人： Alexander Lifson , Michael F. Taras
IPC分类号： G05D23/00
CPC分类号： F25B49/02 , F25B2600/112 , F28D1/024 , F28F27/00 , Y02B30/743
摘要： A refrigerant system heat exchanger is characterized by improved airflow distribution through the use of at least one of the fans operating in the pulse width modulation or variable speed mode. Improved airflow distribution can be used to alleviate the effects of refrigerant maldistribution, enhance heat exchanger performance, prevent compressor flooding and improve comfort in the conditioned space.
摘要翻译：制冷剂系统热交换器的特征在于通过使用以脉宽调制或变速模式工作的至少一个风扇来改善气流分布。改善的气流分布可用于减轻制冷剂分布不均匀的影响，提高热交换器性能，防止压缩机淹水，提高空调空间的舒适度。

162. 发明授权

US07300257B2 Prevention of unpowered reverse rotation in compressors 有权
标题翻译：防止压缩机中无动力反向旋转
公开(公告)号：US07300257B2
公开(公告)日：2007-11-27
申请号：US11017304
申请日：2004-12-20
申请人： Alexander Lifson , Michael F. Taras
发明人： Alexander Lifson , Michael F. Taras
IPC分类号： F04B49/06
CPC分类号： F04C28/04 , F04C18/0215 , F04C28/06 , F04C28/08 , F04C28/28 , F04C2270/72
摘要： The shutdown of a compressor (10) installed in a refrigerant circuit (2) in air conditioning or refrigeration system is controlled so as to prevent unpowered reverse rotation of the compressor. Prior to terminating electric power to the compressor drive motor (24), the pressure within the system is relieved and substantially equalized across the compressor, thereby eliminating the possibility of unpowered reverse rotation of the compressor at shutdown. Pressure relief and equalization may be achieved by reducing the operating speed of the compressor to a low forward speed for a period of time prior to deenergizing the compressor drive motor. Pressure equalization may also be achieved by driving the compressor in reverse rotation prior to deenergizing the drive motor.
摘要翻译：控制安装在空调或制冷系统中的制冷剂回路（2）中的压缩机（10）的关闭，以防止压缩机的无动力反向旋转。在将压缩机驱动马达（24）的电力终止之前，系统内的压力在整个压缩机上被释放并基本相等，从而消除了关闭时压缩机无动力反转的可能性。通过在压缩机驱动马达断电之前的一段时间内将压缩机的运行速度降低到较低的前进速度，可以实现泄压和均衡。还可以通过在驱动马达断电之前将压缩机反向旋转来实现压力均衡。

163. 发明授权

US07257955B2 Discharge valve to increase heating capacity of heat pumps 有权
标题翻译：排放阀增加热泵的加热能力
公开(公告)号：US07257955B2
公开(公告)日：2007-08-21
申请号：US10936034
申请日：2004-09-08
申请人： Alexander Lifson , Michael F. Taras
发明人： Alexander Lifson , Michael F. Taras
IPC分类号： F25B13/00
CPC分类号： F25B41/04 , F25B13/00 , F25B41/046 , F25B2313/02741 , F25B2313/02742 , F25B2400/13 , F25B2500/02
摘要： A heat pump is provided with a discharge valve on a discharge line. The discharge valve can be positioned to modulate or pulse refrigerant flow from the discharge line heading toward an indoor heat exchanger, when in a heating mode. By providing this restriction, the pressure and the temperature of the refrigerant increases. This increased temperature provides additional heating capacity as well as increases the temperature of the delivered indoor air, minimizing “cold blow” and making the end user more comfortable. The use of discharge valve can also minimize or entirely eliminate the ON/OFF unit cycling, as the amount of heat delivered can be precisely controlled by pulsing or modulating the valve, thus reducing unit cycling losses, improving user comfort and enhancing reliability.
摘要翻译：热泵在排气管上设有排放阀。当处于加热模式时，排放阀可以定位成调制或脉冲从排出管线朝向室内热交换器的制冷剂流。通过提供这种限制，制冷剂的压力和温度增加。这种增加的温度提供额外的加热能力，并且增加输送的室内空气的温度，最小化“冷吹”并使终端用户更舒适。排出阀的使用也可以最小化或完全消除ON / OFF单元循环，因为可以通过脉冲或调节阀门来精确地控制输送的热量，从而减少单元循环损失，提高用户舒适度和提高可靠性。

164. 发明授权

US07234311B2 Prevention of compressor unpowered reverse rotation in heat pump units 有权
标题翻译：防止压缩机无动力反向旋转在热泵机组
公开(公告)号：US07234311B2
公开(公告)日：2007-06-26
申请号：US11098363
申请日：2005-04-04
申请人： Alexander Lifson , Michael F. Taras
发明人： Alexander Lifson , Michael F. Taras
IPC分类号： F25B1/00
CPC分类号： F25B13/00 , F25B1/04 , F25B1/047 , F25B2313/0292 , F25B2500/27
摘要： A heat pump is provided with a method and control for eliminating compressor un-powered reverse rotation at shutdown. In particular, the position of the four-way reversing valve is changed and the heat pump is moved to the opposite mode of operation as compared to the one it had been operated before shutdown. The compressed refrigerant, that might otherwise re-expand through the compressor and cause the compressor to run in reverse, is now communicated to the suction line of the compressor, while the discharge port of the compressor communicates with a refrigerant at suction pressure. Thus the unpowered reverse rotation of the compressor is no longer possible.
摘要翻译：热泵提供了一种方法和控制，用于在关闭时消除压缩机未供电的反向旋转。特别地，四相换向阀的位置改变，并且热泵在停机之前与其操作相比移动到相反的操作模式。然后压缩的制冷剂，否则可能通过压缩机重新膨胀并导致压缩机反向运行，则压缩机的排出口与吸入压力下的制冷剂连通。因此，压缩机的无动力反向旋转不再可能。

165. 发明授权

US07155920B2 Refrigerant cycle with tandem compressors and multiple condensers 有权
标题翻译：串联压缩机和多个冷凝器的制冷循环
公开(公告)号：US07155920B2
公开(公告)日：2007-01-02
申请号：US10967862
申请日：2004-10-18
申请人： Alexander Lifson , Michael F. Taras
发明人： Alexander Lifson , Michael F. Taras
IPC分类号： F25B7/00 , F25B41/00 , F25B49/00 , F25B1/10
CPC分类号： F25B6/00 , F25B2400/074 , F25B2400/075
摘要： A tandem compressor system is utilized that receives refrigerant from a common suction manifold, and from a common evaporator. From the compressors, the refrigerant passes to a plurality of condensers, with each of the condensers being associated with a separate zone for heat rejection, preferably at different temperature levels. Each of the condensers is associated with at least one of the plurality of compressors. By utilizing the common evaporator, yet a plurality of condensers, the ability to independently control temperature and amount of heat rejection to a number of zones is achieved without the requirement of having a dedicated circuit with multiple additional components. Thus, the overall system cost and complexity can be greatly reduced. In embodiments, one or more of the plurality of compressors can be provided by a compressor bank, having its own plurality of compressors.
摘要翻译：使用串联压缩机系统，其从公共抽吸歧管和公共蒸发器接收制冷剂。从压缩机，制冷剂传递到多个冷凝器，其中每个冷凝器与用于排热的单独的区域相关联，优选在不同的温度水平。每个冷凝器与多个压缩机中的至少一个相关联。通过利用公共蒸发器，还有多个冷凝器，实现了将多个区域的温度和排热量独立控制的能力，而不需要具有多个附加部件的专用电路。因此，可以大大降低整体系统的成本和复杂性。在实施例中，多个压缩机中的一个或多个可以由具有其自己的多个压缩机的压缩机组提供。

166. 发明授权

US06925823B2 Refrigerant cycle with operating range extension 失效
公开(公告)号：US06925823B2
公开(公告)日：2005-08-09
申请号：US10695114
申请日：2003-10-28
申请人： Alexander Lifson , Michael F. Taras
发明人： Alexander Lifson , Michael F. Taras
IPC分类号： F25B1/04 , F25B49/00 , F25B49/02
CPC分类号： F25B49/005 , F25B1/04 , F25B49/022 , F25B2400/13 , F25B2500/08 , F25B2600/0253 , F25B2600/0261 , F25B2600/2509 , F25B2700/15 , F25B2700/1931 , F25B2700/1933 , F25B2700/2106 , F25B2700/21151 , Y02B30/741
摘要： A refrigerant cycle is provided with a control that monitors system conditions such as current, voltage or temperature at a compressor motor or refrigerant state conditions at compressor ports. A protection switch on the motor is operable to stop operation of the compressor should a system condition exceed a predetermined maximum. The control monitors a system condition, and determines that the system condition indicates the protection switch may be actuated as the condition is moving toward the predetermined limit. Under such conditions, the control moves the compressor to a less loaded mode of operation such that it is less likely that the protection switch will actuate.

167. 发明授权

US06892553B1 Combined expansion device and four-way reversing valve in economized heat pumps 失效
标题翻译：节能热泵组合式膨胀装置和四通换向阀
公开(公告)号：US06892553B1
公开(公告)日：2005-05-17
申请号：US10693593
申请日：2003-10-24
申请人： Alexander Lifson , Thomas J. Dobmeier , Michael F. Taras
发明人： Alexander Lifson , Thomas J. Dobmeier , Michael F. Taras
IPC分类号： F25B13/00 , F25B41/04
CPC分类号： F25B41/046 , F25B13/00 , F25B41/062 , F25B2313/02742 , F25B2400/13 , F25B2500/18
摘要： A refrigerant system is operable in either heating mode or cooling mode. The system is also provided with an economizer cycle that will function in either heating mode or cooling mode. A four-way valve assembly selectively communicates refrigerant from either an indoor heat exchanger or outdoor heat exchanger to an economizer heat exchanger. The valve assembly further includes a restriction for restricting a refrigerant flow downstream of the economizer heat exchanger. The valve assembly provides two distinct restrictions such that a different size restriction is presented to the flow in cooling and heating modes. In this way, a single valve assembly can provide both the required routing for the alternative heating and cooling modes, and at the same time allow for distinct restriction sizes for the two modes without the necessity of separate expansion devices, also improving overall system cost and reliability.
摘要翻译：制冷剂系统可以在加热模式或冷却模式中操作。该系统还具有将在加热模式或冷却模式下工作的节能循环。四通阀组件选择性地将制冷剂从室内热交换器或室外热交换器传送到节能器热交换器。阀组件还包括用于限制节能热交换器下游的制冷剂流的限制。阀组件提供了两个不同的限制，使得在冷却和加热模式下对流动提供了不同的尺寸限制。以这种方式，单个阀组件可以为替代的加热和冷却模式提供所需的路线，并且同时允许两种模式的不同的限制尺寸，而不需要单独的膨胀装置，也提高整体系统成本，可靠性。

168. 发明授权

US10337507B2 Bypass unloader valve for compressor capacity control 有权
公开(公告)号：US10337507B2
公开(公告)日：2019-07-02
申请号：US13382379
申请日：2010-05-24
申请人： Alexander Lifson , Michael F. Taras
发明人： Alexander Lifson , Michael F. Taras
IPC分类号： F04B39/08 , F04B49/03 , F04B49/06 , F04B49/22 , F04B49/035 , F04B1/04
摘要： A reciprocating compressor includes a cylinder block, a cylinder head, and a bypass unloader valve assembly. The cylinder block has a cylinder disposed therein. The cylinder head is secured to the cylinder block overlying the cylinder and has a suction plenum and a discharge plenum in selective fluid communication with the cylinder. The bypass unloader valve assembly is in operable communication with the cylinder head and is responsive to control signals to rapid cycle to allow for fluid communication of a refrigerant between the discharge plenum and the suction plenum.

169. 发明授权

US09890982B2 Discrete frequency operation for unit capacity control 有权
公开(公告)号：US09890982B2
公开(公告)日：2018-02-13
申请号：US13057945
申请日：2009-07-22
申请人： Alexander Lifson , Michael F. Taras
发明人： Alexander Lifson , Michael F. Taras
IPC分类号： F25B49/00 , F25B49/02
CPC分类号： F25B49/025 , F25B2500/13 , F25B2600/0253 , Y02B30/741
摘要： A variable speed electric drive for use in refrigerant systems includes an electric motor for driving an associated component at a variable speed that is a function of an operating frequency of the motor; and a control for supplying alternating discrete drive frequencies to the electric motor to provide a continuously variable speed drive of the associated component. The control cycles the drive frequency to the electric motor among the at least two discrete frequencies so that the variable average resultant speed at which the associated component is driven is a function of a combination of the selected at least two discrete frequencies.

170. 发明授权

US08925336B2 Refrigerant system performance enhancement by subcooling at intermediate temperatures 有权
标题翻译：在中等温度下通过过冷制冷剂系统性能提升
公开(公告)号：US08925336B2
公开(公告)日：2015-01-06
申请号：US12918233
申请日：2008-02-19
申请人： Alexander Lifson , Michael F. Taras
发明人： Alexander Lifson , Michael F. Taras
IPC分类号： F25B41/00 , F25B49/00 , F25B7/00 , F25B39/04 , F25B41/04 , F25B6/04 , F25B49/02
CPC分类号： F25B41/04 , F25B6/04 , F25B49/02 , F25B2400/0403 , F25B2400/22 , F25B2600/11
摘要： A refrigerant system operates in an environment defined by three distinct temperature levels, such as, for instance, the outdoor ambient temperature level, the indoor temperature level and the refrigeration temperature level. The refrigerant system is provided with an air-to-refrigerant heat exchanger located within the general indoor environment and connected to receive the flow of refrigerant from a heat rejection heat exchanger. The air-to-refrigerant heat exchanger gives off heat to the indoor air and in the process further cools the refrigerant flowing to an expansion device to thereby increase the cooling effect provided by an evaporator to the refrigeration area. Provisions are also made to partially or entirely bypass the air-to-refrigerant heat exchanger and/or the heat rejection heat exchanger, on a selective basis.
摘要翻译：制冷剂系统在由三个不同的温度水平（例如室外环境温度水平，室内温度水平和制冷温度水平）限定的环境中操作。制冷剂系统设置有位于一般室内环境内并连接以接收来自排热热交换器的制冷剂流的空气 - 制冷剂热交换器。空气 - 制冷剂热交换器向室内空气发热，并且在该过程中进一步冷却流到膨胀装置的制冷剂，从而将由蒸发器提供的冷却效果提高到制冷区域。还有选择地进行部分地或完全地旁路空气 - 制冷剂热交换器和/或排热热交换器。

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