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111. 发明授权

US06990826B1 Single expansion device for use in a heat pump 失效
标题翻译：用于热泵的单个膨胀装置
公开(公告)号：US06990826B1
公开(公告)日：2006-01-31
申请号：US11098845
申请日：2005-04-05
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： F25B13/00 , F25B2600/2513 , F25B2700/21151
摘要： A heat pump is provided with a single expansion device a pair of four-way reversing valves. One of the reversing valves routes the refrigerant from the compressor to either an outdoor heat exchanger or indoor heat exchanger, as well as routes the refrigerant back to the compressor. The second four-way reversing valve receives refrigerant from one of the heat exchangers and properly routes it through a common expansion device in a single direction. The two four-way reversing valves are controlled dependent on whether the heat pump is operating in a cooling or heating mode. A single expansion device sensor is positioned on a suction line, which receives refrigerant on its way back to the compressor from the first four-way reversing valve. The present invention thus eliminates the prior art requirement of additional components, enhances control and reduces system cost.
摘要翻译：热泵设有一个单向膨胀装置，一对四通换向阀。一个换向阀将制冷剂从压缩机传递到室外热交换器或室内热交换器，并将制冷剂回送到压缩机。第二四通换向阀从一个热交换器接收制冷剂，并通过公共的膨胀装置在单一方向上适当地将其输送。两个四通换向阀根据热泵是以冷却还是加热模式运行来控制。单个膨胀装置传感器位于吸入管路上，该吸入管路在从第一四通换向阀返回压缩机的途中接收制冷剂。因此，本发明消除了附加部件的现有技术要求，增强了控制并降低了系统成本。

112. 发明授权

US06955058B2 Refrigerant cycle with tandem economized and conventional compressors 有权
标题翻译：具有串联节能和常规压缩机的制冷循环
公开(公告)号：US06955058B2
公开(公告)日：2005-10-18
申请号：US10769161
申请日：2004-01-30
申请人： Michael F. Taras , Alexander Lifson , Thomas J. Dobmeier
发明人： Michael F. Taras , Alexander Lifson , Thomas J. Dobmeier
IPC分类号： F25B41/04 , F25B7/00 , F25B41/00
CPC分类号： F25B41/04 , F25B2400/075 , F25B2400/13 , F25B2600/0261 , F25B2600/2509
摘要： A refrigerant cycle is provided with tandem compressors. Only some of the multiple compressors are provided with an economized cycle, and an optional unloader valve for selectively returning flow from an economizer injection port back to suction. The present invention thus provides the economized operation capabilities and benefits for a refrigerant cycle having tandem compressors, without the complexity of providing separate economizer arrangement for each of the compressors.
摘要翻译：制冷循环设有串联式压缩机。只有一些多台压缩机具有经济的循环，以及可选的卸载阀，用于选择性地将节流器注入口的流量返回到吸力。因此，本发明提供了具有串联压缩机的制冷剂循环的经济的操作能力和益处，而不需要为每个压缩机提供单独的节能装置。

113. 发明授权

US06925822B2 Oil return control in refrigerant system 失效
标题翻译：制冷系统回油控制
公开(公告)号：US06925822B2
公开(公告)日：2005-08-09
申请号：US10732501
申请日：2003-12-10
申请人： Alexander Lifson , Michael F. Taras , Thomas J. Dobmeier
发明人： Alexander Lifson , Michael F. Taras , Thomas J. Dobmeier
IPC分类号： F25B49/02 , F25B7/00 , F25B31/00
CPC分类号： F25B49/02 , F25B2400/06 , F25B2400/13 , F25B2500/15 , F25B2500/16 , F25B2600/0261
摘要： Several control algorithms reduce the likelihood of insufficient oil return to the compressor. One algorithm is useful in a multi-circuit refrigerant system. A control reduces the cooling capacity of one of the circuits if the number of compressor start/stop cycles becomes excessive. By reducing the capacity, the control will reduce the number of compressor start/stop cycles for a circuit. In this manner, the oil continues to circulate through the circuit, and is more efficiently returned to the compressor. Another problem area associated with a poor oil return back to the compressor is when there is low mass flow rate of refrigerant circulating through the system. Various ways of increasing the refrigerant mass flow rate are disclosed to ensure proper oil return to the compressor. Also, if oil return problems are likely due to an undesirably high oil viscosity at the vapor portion of the evaporator or suction line, then steps are taken to reduce oil viscosity. Overall, the present invention discloses three distinct algorithms that may be utilized, either separately or in combination, to ensure better flow of oil back to the compressor. The invention enhances system and compressor reliability and performance as well as prevents the compressor damage.
摘要翻译：几种控制算法可以减少油回流到压缩机的可能性。一种算法在多回路制冷剂系统中是有用的。如果压缩机启动/停止循环次数过多，则控制器可降低其中一个回路的冷却能力。通过减小容量，控制将减少电路的压缩机启动/停止循环次数。以这种方式，油继续循环通过电路，并且更有效地返回到压缩机。另一个与油回油不良有关的问题是当制冷剂循环通过系统时质量流量低。公开了增加制冷剂质量流量的各种方式以确保适当的油返回到压缩机。而且，如果油回流问题可能是由于在蒸发器或吸入管线的蒸汽部分处的不希望的高油粘度，则采取步骤以降低油粘度。总的来说，本发明公开了可以单独地或组合地使用的三种不同的算法，以确保更好的油回流到压缩机。本发明提高了系统和压缩机的可靠性和性能，并且防止压缩机损坏。

114. 发明授权

US06873504B2 System and method for detecting loss of phase in a compressor system 有权
标题翻译：用于检测压缩机系统相位损失的系统和方法
公开(公告)号：US06873504B2
公开(公告)日：2005-03-29
申请号：US10247449
申请日：2002-09-19
申请人： Alexander Lifson , Michael F. Taras
发明人： Alexander Lifson , Michael F. Taras
IPC分类号： F04B49/10 , H02H1/00 , H02H3/13 , H02H3/34 , H02H7/09 , H03L7/08 , H02H7/00
CPC分类号： H02H7/09 , H02H1/0038
摘要： A system for detecting loss of an electrical phase in a compressor system includes a compressor system component having a plurality of phase carrying legs; a sensor for measuring current communicated with one leg of the plurality of phase carrying legs; and a processor unit adapted to receive a signal from the sensor and determine whether loss of phase has occurred in any of the plurality of phase carrying legs.
摘要翻译：用于检测压缩机系统中的电相损失的系统包括具有多个相位支路的压缩机系统部件; 传感器，用于测量与所述多个相位腿中的一条腿相通的电流; 以及处理器单元，其适于从所述传感器接收信号，并且确定所述多个相位腿中的任何一个中是否发生相位损失。

115. 发明授权

US06826918B1 Refrigerant system performance enhancement by use of additional heat exchanger 失效
标题翻译：通过使用额外的热交换器来提高制冷剂系统性能
公开(公告)号：US06826918B1
公开(公告)日：2004-12-07
申请号：US10732565
申请日：2003-12-10
申请人： Michael F. Taras , Alexander Lifson , Howard H. Fraser, Jr.
发明人： Michael F. Taras , Alexander Lifson , Howard H. Fraser, Jr.
IPC分类号： F25B100
CPC分类号： F25B1/00 , F25B40/00 , F25B2400/13
摘要： The invention provides two distinct schematics allowing system performance enhancement through the utilization of an auxiliary heat exchanger and splitting the refrigerant flow into primary and secondary paths. A system performance boost is achieved due to extra subcooling of a primary refrigerant flow in an auxiliary heat exchanger as well as superheat reduction of the combined refrigerant flow entering the compressor and a primary refrigerant flow pressure drop decrease through the evaporator (in comparison to the prior art). The invention offers the superior benefits outlined above with only a moderate cost increment. Also, employment of conventional components only, and no compressor modifications make implementation of the proposed schematics even more attractive.
摘要翻译：本发明提供了两个截然不同的原理图，通过利用辅助热交换器并将制冷剂流分解成主要和次要路径来提高系统性能。由于辅助热交换器中的初级制冷剂流的过度冷却以及进入压缩机的组合制冷剂流的过热减少以及通过蒸发器的初级制冷剂流量压降降低（与之前相比），系统性能提升是实现的艺术）。本发明提供了上述优点，只有适度的成本增量。而且，仅使用常规部件，并且没有压缩机修改使得所提出的示意图的实现更具吸引力。

116. 发明授权

US06817205B1 Dual reversing valves for economized heat pump 有权
标题翻译：经济型热泵双换向阀
公开(公告)号：US06817205B1
公开(公告)日：2004-11-16
申请号：US10693556
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： F25B1300
CPC分类号： F25B13/00 , F25B2313/02742 , F25B2400/13
摘要： A refrigerant system is operable either in a heating mode or a cooling mode. The system is also provided with an economizer cycle that will function in both heating mode or cooling mode. A pair of four-way valves control the flow of refrigerant through the refrigerant cycle in a preferred embodiment. The first valve properly routes the refrigerant from the compressor either to the outdoor heat exchanger or to the indoor heat exchanger dependent upon whether cooling mode or heating mode is in place. The second valve routes the refrigerant serially from either the outdoor heat exchanger or the indoor heat exchanger through an economizer heat exchanger and a main expansion device, again dependent on whether the refrigerant cycle is in a cooling mode or in a heating mode. A tap is positioned upstream of the economizer heat exchanger and taps a portion of the refrigerant to provide the economizer function. The present invention thus provides a simple system for utilizing a refrigerant cycle for both cooling and heating modes, while still providing an economizer function in both modes.
摘要翻译：制冷剂系统可以在加热模式或冷却模式中操作。该系统还具有在加热模式或冷却模式下工作的节能循环。在优选实施例中，一对四通阀控制制冷剂循环中的制冷剂流动。第一个阀根据冷却模式或加热模式是否正确将制冷剂从压缩机正确地输送到室外热交换器或室内热交换器。第二阀将制冷剂从室外热交换器或室内热交换器顺序地通过节能器热交换器和主膨胀装置连续地进行，这也取决于制冷剂循环是处于冷却模式还是处于加热模式。水龙头位于节能器热交换器的上游，并且抽吸一部分制冷剂以提供节能器功能。因此，本发明提供了一种用于在冷却和加热模式下利用制冷剂循环的简单系统，同时在两种模式中仍然提供节能器功能。

117. 发明授权

US06799951B2 Compressor degradation detection system 有权
标题翻译：压缩机退化检测系统
公开(公告)号：US06799951B2
公开(公告)日：2004-10-05
申请号：US10207407
申请日：2002-07-25
申请人： Alexander Lifson , Michael F. Taras , Howard H. Fraser, Jr.
发明人： Alexander Lifson , Michael F. Taras , Howard H. Fraser, Jr.
IPC分类号： F04B4900
CPC分类号： F04C28/28 , F04B49/10 , F04D27/001 , F25B1/10 , F25B49/005 , F25B49/022 , F25B2400/13
摘要： A method for detecting compressor degradation includes the steps of providing a dataset for a compressor relating compressor operating parameters to each other; detecting real time actual values of the compressor operating parameters including an evaluated operating parameter; using at least one of the real time actual values and the dataset to determine a predicted value of the evaluated operating parameter; and comparing the predicted value of the evaluated operating parameter to the real time actual value of the evaluated operating parameter. This advantageously allows a prognosis of compressor performance to determine whether performance degradation is occurring.
摘要翻译：一种用于检测压缩机劣化的方法包括以下步骤：为压缩机提供压缩机操作参数的数据集; 检测包括评估的操作参数的压缩机操作参数的实时实际值; 使用实时实际值和数据集中的至少一个来确定所评估的运行参数的预测值; 以及将所评估的操作参数的预测值与所评估的操作参数的实时实际值进行比较。这有利地允许压缩机性能的预测来确定是否发生性能降级。

118. 发明授权

US06571576B1 Injection of liquid and vapor refrigerant through economizer ports 有权
标题翻译：通过节能器端口注入液体和蒸气制冷剂
公开(公告)号：US06571576B1
公开(公告)日：2003-06-03
申请号：US10115622
申请日：2002-04-04
申请人： Alexander Lifson , James W. Bush , Michael F. Taras , Howard H. Fraser, Jr. , Russell G. Lewis
发明人： Alexander Lifson , James W. Bush , Michael F. Taras , Howard H. Fraser, Jr. , Russell G. Lewis
IPC分类号： F25B4100
CPC分类号： F25B41/04 , F04C18/0215 , F04C29/042 , F25B1/047 , F25B1/10 , F25B49/022 , F25B2400/13 , F25B2600/0261 , F25B2600/2509
摘要： An improved apparatus and method for injecting a liquid/vapor into compression chambers at an intermediate pressure utilizes the economizer injection ports already found in the compressor. By selectively communicating a liquid to be injected into the compression chambers to the economizer return line, the economizer return line and its ports are utilized for this liquid/vapor injection. In this way, no additional flow connections at the compressor are necessary. Moreover, by injecting the liquid at an intermediate pressure point, the other benefits are provided. In general, the liquid is injected to reduce the discharge temperature of the refrigerant under certain operational conditions.
摘要翻译：用于在中间压力下将液体/蒸汽喷射到压缩室中的改进的装置和方法利用了已经在压缩机中找到的节约器注入口。通过将要注入的压缩室中的液体选择性地连通到节能器返回管线，节能器返回管线及其端口用于该液体/蒸气喷射。以这种方式，在压缩机上不需要额外的流动连接。此外，通过在中间压力点注入液体，提供了其它益处。通常，注射液体以在某些操作条件下降低制冷剂的排放温度。

119. 发明授权

US10107535B2 Pressure spike reduction for refrigerant systems incorporating a microchannel heat exchanger 有权
公开(公告)号：US10107535B2
公开(公告)日：2018-10-23
申请号：US13395548
申请日：2010-10-14
申请人： Michael F. Taras , Alexander Lifson
发明人： Michael F. Taras , Alexander Lifson
IPC分类号： F25B49/02 , F25B1/10 , F25B49/00 , F25B1/00
摘要： A refrigerant system includes at least one compressor (54, 56) that compresses refrigerant and delivers it downstream to a heat rejection heat exchanger (26). The heat rejection heat exchanger is a microchannel heat exchanger. Refrigerant passes from the heat rejection heat exchanger downstream to an expansion device (60), from the expansion device through an evaporator (66), and from the evaporator back to the at least one compressor. A control (58) operates at least one compressor and the expansion device to reduce pressure spikes at transient conditions.

120. 发明授权

US09200811B2 System and method for control of heat system operation by changing a switching set point of operation 有权
标题翻译：通过改变切换设定点来控制热系统运行的系统和方法
公开(公告)号：US09200811B2
公开(公告)日：2015-12-01
申请号：US12083810
申请日：2005-10-18
申请人： Alexander Lifson , Michael F. Taras
发明人： Alexander Lifson , Michael F. Taras
IPC分类号： F25B29/00 , F24F3/00 , F24D12/02 , F24D19/10 , G05D23/19 , F24F11/00 , F25B13/00
CPC分类号： F24F3/001 , F24D12/02 , F24D19/1039 , F24D2200/04 , F24D2200/12 , F24F11/47 , F24F2221/34 , F25B13/00 , G05D23/1923 , Y02B30/14
摘要： There is provided a space heating system (100) that includes a heat pump (105), a supplemental gas heating system (110), and a controller (115) connected to the heating system (100). The controller (115) controls a switching set point, which in its simplest case is an ambient temperature at which the controller (115) switches between operation of the heat pump (105) and operation of the supplemental gas heating system (110). The controller (115) is connected to a real time source of information (195) providing at least one of current electricity prices and current prices of a source of heating such as gas, and changes the switching set point in response to changes in at least one of the electricity prices and the gas prices. There is also provided a method for control of the heating system (100).
摘要翻译：提供了一种空间加热系统（100），其包括热泵（105），辅助气体加热系统（110）和连接到加热系统（100）的控制器（115）。控制器（115）控制开关设定点，其最简单的情况是控制器（115）在热泵（105）的操作和辅助气体加热系统（110）的操作之间切换的环境温度。控制器（115）连接到实时信息源（195），提供当前电价和诸如天然气的加热源的当前价格中的至少一个，并且响应于至少的变化来改变开关设定点电价和天然气价格之一。还提供了一种用于控制加热系统（100）的方法。

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