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31. 发明授权

US07201008B2 Vapor compression system performance enhancement and discharge temperature reduction in the unloaded mode of operation 有权
标题翻译：蒸汽压缩系统的性能提升和卸料方式的卸料温度降低
公开(公告)号：US07201008B2
公开(公告)日：2007-04-10
申请号：US10429359
申请日：2003-05-05
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 , F25B41/04
CPC分类号： F25B49/022 , F25B41/043 , F25B2600/0261 , F25B2700/1933 , F25B2700/21151
摘要： A vapor compression system includes a main vapor compression circuit having a compressor, a condenser, an expansion device and an evaporator serially connected by main refrigerant lines, the compressor having a suction port, a main discharge port and an intermediate port, and the main refrigerant lines being communicated with the main discharge port and the suction port; a bypass circuit communicated between the intermediate port and the suction portion; and a superheat sensing device positioned to sense superheat in a combined flow from the main vapor compression circuit and the bypass circuit. A method of operation of the system is also provided. The benefits of enhanced system and compressor performance, improved compressor reliability and extended system operating envelope are readily obtained.
摘要翻译：蒸气压缩系统包括主蒸汽压缩回路，其具有压缩机，冷凝器，膨胀装置和通过主制冷剂管线串联连接的蒸发器，所述压缩机具有吸入口，主排出口和中间端口，主制冷剂线与主排出口和吸入口连通; 在中间端口和抽吸部分之间连通的旁路回路; 以及过热感测装置，其被定位成感测来自主蒸汽压缩回路和旁路回路的组合流中的过热。还提供了该系统的操作方法。增强的系统和压缩机性能，改进的压缩机可靠性和扩展的系统操作范围的优点是容易获得的。

32. 发明授权

US07114349B2 Refrigerant system with common economizer and liquid-suction heat exchanger 有权
公开(公告)号：US07114349B2
公开(公告)日：2006-10-03
申请号：US11010039
申请日：2004-12-10
申请人： Alexander Lifson , Michael F. Taras , Howard H. Fraser, Jr. , Russell G. Lewis , Andre Stumpf
发明人： Alexander Lifson , Michael F. Taras , Howard H. Fraser, Jr. , Russell G. Lewis , Andre Stumpf
IPC分类号： F25B41/00 , F25B49/00
CPC分类号： F25B41/04 , F25B1/10 , F25B40/00 , F25B41/043 , F25B2400/04 , F25B2400/13 , F25B2600/0261 , F25B2600/2509
摘要： A refrigerant system is provided where the functions of an economizer heat exchanger and liquid-suction heat exchanger are combined. The two configurations are disclosed with a single common heat exchanger construction. In a first configuration, a series of valves selectively routes only one of two possible refrigerant flows through a common heat exchanger such that a control can selectively activate either an economizer heat exchanger circuit or a liquid-suction heat exchanger function. In a second configuration, both refrigerant flows are passed to the common heat exchanger through separate fluid lines and are selectively activated by the control. Variations of the second configuration are also disclosed.

33. 发明授权

US07114348B2 Fluid diode expansion device for heat pumps 失效
公开(公告)号：US07114348B2
公开(公告)日：2006-10-03
申请号：US11252816
申请日：2005-10-18
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： F25B41/06
CPC分类号： F25B41/062 , F25B13/00 , F25B2341/061 , F25B2500/01 , F25B2500/05 , F25B2500/21
摘要： An expansion device for the heat pump applications consists of a flow resistance device that has a different resistance to refrigerant flow depending on the flow direction through this device. The flow resistance device has no moving parts so that it avoids the damage, wear and contamination problems of the moveable piston in the prior art. The flow resistance device is a fixed obstruction about which the fluid must flow when traveling through the expansion device.

34. 发明授权

US07028492B2 Hybrid dehumidication system 有权
标题翻译：混合除湿系统
公开(公告)号：US07028492B2
公开(公告)日：2006-04-18
申请号：US10790350
申请日：2004-03-01
申请人： Michael F. Taras , Alexander Lifson
发明人： Michael F. Taras , Alexander Lifson
IPC分类号： F25B29/00 , F25B49/00 , F25D17/04
CPC分类号： B60H1/3207 , B60H2001/3242 , B60H2001/3283 , B60H2001/3288 , B60H2001/3291 , F24F3/153 , F24F11/65 , F24F2221/54
摘要： A hybrid dehumidification system includes a compressor, a condenser, an expansion device and an evaporator connected for flow of working fluid through a fluid circuit; a reheat coil positioned relative to the evaporator for heating at least a portion of a stream of air passing through the evaporator; and a working fluid directing system adapted to flow working fluid in at least two modes of operation selected from the group consisting of a standard cooling mode, a cooling and enhanced dehumidification mode; a dehumidification without substantial sensible capacity mode; a heating and dehumidification mode; and a dehumidification with variable sensible capacity mode.
摘要翻译：混合除湿系统包括压缩机，冷凝器，膨胀装置和蒸发器，其连接用于通过流体回路的工作流体流动; 相对于蒸发器定位的再热线圈，用于加热通过蒸发器的空气流的至少一部分; 以及工作流体引导系统，其适于以至少两种操作模式流动工作流体，所述操作模式选自标准冷却模式，冷却和增强除湿模式; 没有明显的容量模式的除湿; 加热和除湿模式; 以及具有可变容量模式的除湿。

35. 发明授权

US07013658B2 Refrigerant subcooling by condensate 有权
标题翻译：制冷剂通过冷凝液过冷
公开(公告)号：US07013658B2
公开(公告)日：2006-03-21
申请号：US10771161
申请日：2004-02-03
申请人： Thomas J. Dobmeier , Michael F. Taras , Alexander Lifson
发明人： Thomas J. Dobmeier , Michael F. Taras , Alexander Lifson
IPC分类号： F25D21/00 , F25D5/00 , F25B47/00
CPC分类号： F25D21/14 , F24F2013/225 , F25B40/02
摘要： Refrigerant is circulated through a vapor compression system including a compressor, a condenser, an expansion device, and an evaporator. Cold condensate forms on the evaporator surfaces as the refrigerant accepts heat from an air stream. The cold condensate drips down from the evaporator coil and collects in a condensate pan. In one example, the cold condensate is directed into a condensate heat exchanger to subcool the refrigerant exiting the condenser. In another example, the refrigerant exiting the condenser flows through a refrigerant line located in the condensate pan. In another example, the cold condensate is sprayed on the refrigerant line exiting the condenser or on the subcooling portion of the condenser. By utilizing the condensate for further subcooling of the refrigerant, system capacity and efficiency are enhanced. Various control techniques and condensate flow methods are also disclosed.
摘要翻译：制冷剂通过包括压缩机，冷凝器，膨胀装置和蒸发器的蒸汽压缩系统循环。当制冷剂从空气流中接受热量时，冷凝物形成在蒸发器表面上。冷凝液从蒸发器盘管下降并收集在冷凝盘中。在一个实例中，冷冷凝物被引导到冷凝物热交换器中，以使冷却剂过冷却。在另一个实例中，离开冷凝器的制冷剂流过位于冷凝盘中的制冷剂管线。在另一个实例中，冷冷凝物喷射在离开冷凝器或冷凝器的过冷部分的制冷剂管线上。通过利用冷凝物进一步冷却制冷剂，提高了系统的容量和效率。还公开了各种控制技术和冷凝物流动方法。

36. 发明授权

US06964173B2 Expansion device with low refrigerant charge monitoring 失效
公开(公告)号：US06964173B2
公开(公告)日：2005-11-15
申请号：US10695123
申请日：2003-10-28
申请人： Thomas J. Dobmeier , Michael F. Taras , Alexander Lifson
发明人： Thomas J. Dobmeier , Michael F. Taras , Alexander Lifson
IPC分类号： F25B41/06 , F25B49/00 , F25B49/02
CPC分类号： F25B49/005 , F25B41/062 , F25B49/022 , F25B2500/222 , F25B2600/2513 , F25B2700/1931 , F25B2700/1933 , F25B2700/2104 , F25B2700/2106
摘要： An air conditioning or refrigeration system includes an expansion device that has a plurality of operating positions. When the expansion device is in a fully open position, the expansion device provides an indication to a system controller regarding that position. The controller responsively determines if the fully open position of the expansion device is caused by an undesirably low amount of refrigerant charge in the system. In one example, the controller rules out other possible reasons for the expansion device being in the fully open position. In one example, the controller automatically shuts down appropriate portions of the system to avoid any component damage that may result from having too low refrigerant amount in the system.

37. 发明授权

US06928828B1 Tandem compressors with economized operation 有权
标题翻译：串联压缩机经济实惠
公开(公告)号：US06928828B1
公开(公告)日：2005-08-16
申请号：US10762708
申请日：2004-01-22
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： F25B1/10 , F25B41/04 , F25B7/00 , F25B41/00
CPC分类号： F25B41/04 , F25B1/10 , F25B2400/075 , F25B2400/13 , F25B2600/0261
摘要： A refrigerant cycle includes economized tandem compressors. The refrigerant cycle is also provided with a common economizer circuit for all tandem compressors. Common manifolds communicate discharge, suction and economizer return flows within the refrigerant cycle to each of the tandem compressors. Also, an optional unloader function is provided for each of the compressors. Various arrangements allow enhanced operation control, improved system reliability and reduced equipment life-cycle cost.
摘要翻译：制冷剂循环包括经济的串联式压缩机。制冷剂循环还配备有用于所有串联压缩机的通用节能器回路。通用歧管将制冷剂循环内的排放，抽吸和节约器返回流量传递给每个串联式压缩机。此外，为每个压缩机提供可选的卸载器功能。各种布置允许增强的操作控制，提高的系统可靠性和减少设备的生命周期成本。

38. 发明授权

US08424328B2 Suction valve pulse width modulation control based on evaporator or condenser pressure 有权
标题翻译：基于蒸发器或冷凝器压力的吸气阀脉宽调制控制
公开(公告)号：US08424328B2
公开(公告)日：2013-04-23
申请号：US12514380
申请日：2005-11-30
申请人： Alexander Lifson , Michael F. Taras
发明人： Alexander Lifson , Michael F. Taras
IPC分类号： F25B49/00 , G05D7/00
CPC分类号： F25B41/043 , F25B49/02 , F25B2600/2521 , F25B2700/1933 , F25B2700/195 , F25B2700/197
摘要： A refrigerant system is provided with a suction pulse width modulation valve, and a pulse width modulation control for controlling this valve. System pressures, such as the pressure on the evaporator and the condenser are monitored. The measured system pressures are maintained within a band of acceptable lower and upper limits. As the pulse width modulation control cycles the valve, the refrigerant pressures in the evaporator and the condenser tend to fluctuate. The control ensures those fluctuations are within the limits by controlling the duty cycle of the valve.
摘要翻译：制冷剂系统设置有吸入脉宽调制阀和用于控制该阀的脉宽调制控制。监测系统压力，例如蒸发器和冷凝器上的压力。测量的系统压力保持在可接受的下限和上限的带内。随着脉冲宽度调制控制使阀门循环，蒸发器和冷凝器中的制冷剂压力趋于波动。该控制通过控制阀的占空比确保这些波动在极限内。

39. 发明授权

US08359873B2 Oil return in refrigerant system 有权
标题翻译：回油制冷系统
公开(公告)号：US08359873B2
公开(公告)日：2013-01-29
申请号：US12377144
申请日：2006-08-22
申请人： Alexander Lifson , Michael F. Taras
发明人： Alexander Lifson , Michael F. Taras
IPC分类号： F25B43/02
CPC分类号： F25B31/002 , F25B49/02 , F25B2500/16 , F25B2600/2513
摘要： To address the problem of lubricant entrainment within the refrigerant system components such as an evaporator and suction line, a control is provided to periodically, substantially and intermittently increase the refrigerant flow through these components to thereby carry the trapped lubricant back to the compressor. The increased flow of refrigerant can be accomplished by periodically throttling and then unthrottling either an expansion device or a suction modulation valve to cause instantaneous pressure buildup within a respective section of the vapor compression system and subsequent increase of the refrigerant flow through the above-referenced components such as an evaporator and suction line. Suggested time intervals of both the throttling and unthrottling states are provided, as well as the frequency of occurrence for subsequent oil return cycles.
摘要翻译：为了解决在诸如蒸发器和吸入管线的制冷剂系统部件内的润滑剂夹带的问题，提供了一个控制以周期性地，基本上和间歇地增加通过这些部件的制冷剂流动，从而将被捕获的润滑剂运回压缩机。制冷剂的增加的流动可以通过周期性地节流，然后将膨胀装置或抽吸调节阀切断，以在蒸汽压缩系统的相应部分内产生瞬时压力，随后增加制冷剂流过上述参考部件例如蒸发器和吸入管线。提供了节流和节流状态的建议时间间隔，以及后续回油循环的发生频率。

40. 发明授权

US08356489B2 Injection of refrigerant in system with expander 失效
标题翻译：在膨胀机系统中注入制冷剂
公开(公告)号：US08356489B2
公开(公告)日：2013-01-22
申请号：US12515443
申请日：2006-12-26
申请人： Alexander Lifson , Michael F. Taras
发明人： Alexander Lifson , Michael F. Taras
IPC分类号： F25B1/00 , F25B1/10 , F25D9/00
CPC分类号： F25B9/06 , F25B1/10 , F25B11/02 , F25B2309/061 , F25B2400/13 , F25B2400/14 , F25B2600/2521
摘要： A refrigerant system incorporates an expander. At least a portion of refrigerant bypasses an evaporator and is injected into the compression process to cool main refrigerant vapor flow and compressor elements. In disclosed embodiments, the injected refrigerant may be partially expanded in the expander and routed either into the compressor suction or to an intermediate point in the compression process. A valve may control the amount of the injected refrigerant to achieve desired operational characteristics for the refrigerant system.
摘要翻译：制冷剂系统包括膨胀机。制冷剂的至少一部分绕过蒸发器并被注入压缩过程以冷却主制冷剂蒸气流和压缩机元件。在所公开的实施例中，注入的制冷剂可以在膨胀机中部分膨胀并且在压缩过程中被引导到压缩机吸入件或中间点。阀可以控制注入的制冷剂的量以达到制冷剂系统的期望的操作特性。

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