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1.发明授权Combined operation and control of suction modulation and pulse width modulation valves 有权吸入调制和脉宽调制阀的组合操作和控制公开(公告)号：US09139066B2
公开(公告)日：2015-09-22
申请号：US12516222
申请日：2007-02-13
Applicant: Alexander Lifson , Michael F. Taras
Inventor： Alexander Lifson , Michael F. Taras
CPC classification number: B60H1/00428 , B60H1/3223 , F25B41/043 , F25B2600/2521 , Y02T10/88
Abstract: A refrigerant system is provided with a pulse width modulation suction valve and a second valve on a line that bypasses the pulse width modulation suction valve. This second valve has a variable opening. In this manner, the pressure within the compressor shell is maintained at the lowest possible level regardless of the system operating conditions, when the pulse width modulation suction valve is cycled to a closed position. Further, the second valve can continue providing capacity control, should the pulse width modulation suction valve fail.
Abstract translation: 制冷剂系统在旁路脉宽调制吸入阀的管路上设置有脉宽调制吸入阀和第二阀。 该第二阀具有可变开口。 以这种方式，当脉冲宽度调制吸入阀循环到关闭位置时，压缩机壳体内的压力保持在最低可能水平，而与系统操作条件无关。 此外，如果脉宽调制吸入阀故障，第二阀可继续提供容量控制。
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公开(公告)号：US08956135B2
公开(公告)日：2015-02-17
申请号：US12935493
申请日：2009-05-26
Applicant: Alexander Lifson
Inventor： Alexander Lifson
CPC classification number: F04C18/165 , F04C29/0035 , F04C2250/10
Abstract: A multi-rotor screw compressor includes a housing, a sun rotor, and first and second planet rotors. The first planet rotor intermeshes with the sun rotor to define a first compression pair. The second planet rotor intermeshes with the sun rotor to define a second compression pair. The first and second compression pairs are rotatably mounted in the housing. The housing includes a first port, a portion of which is in communication with the first compression pair, and a second port, a portion of which is in communication with the second compression pair. The portions of the first and second ports which communicate with the first and second compression pairs have a different geometry for offsetting pulsations in a working fluid flowing through the ports.
Abstract translation: 多转子螺杆式压缩机包括壳体，太阳转子以及第一和第二行星转子。 第一行星转子与太阳转子相互啮合以限定第一压缩对。 第二行星转子与太阳转子相互啮合以限定第二压缩对。 第一和第二压缩对可旋转地安装在壳体中。 壳体包括第一端口，其一部分与第一压缩对连通，以及第二端口，其一部分与第二压缩对连通。 与第一和第二压缩对连通的第一和第二端口的部分具有不同的几何形状，用于抵消流过端口的工作流体中的脉动。
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3.发明授权Refrigeration systems with voltage modulated compressor motors and methods of their control 失效具有调压压缩机电机的制冷系统及其控制方法公开(公告)号：US08375735B2
公开(公告)日：2013-02-19
申请号：US12520052
申请日：2006-12-18
Applicant: Alexander Lifson , Michael F. Taras
Inventor： Alexander Lifson , Michael F. Taras
CPC classification number: F25B49/025 , F25B2600/021 , F25B2600/0251 , F25B2600/0252 , F25B2600/026 , F25B2600/2521 , Y02B30/741
Abstract: A refrigerant system is provided that includes a compressor, a motor for driving the compressor, a refrigerant system component, and a controller. The refrigerant system component can operate in a pulse width modulated mode having a loaded phase and an unloaded phase. The compressor motor is loaded in the loaded phase but unloaded in the unloaded phase. The controller applies a first voltage to the compressor motor in the loaded phase and a second voltage to the compressor motor in the unloaded phase. Here, the second voltage is less than the first voltage.
Abstract translation: 提供一种制冷剂系统，其包括压缩机，用于驱动压缩机的电动机，制冷剂系统部件和控制器。 制冷剂系统部件可以以具有负载相和无负载相的脉宽调制模式工作。 压缩机电动机装载在负载阶段，但在卸载阶段卸载。 控制器在负载阶段向压缩机电动机施加第一电压，并在卸载阶段向压缩机电动机施加第二电压。 这里，第二电压小于第一电压。
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公开(公告)号：US08356491B2
公开(公告)日：2013-01-22
申请号：US12447492
申请日：2006-12-21
Applicant: Michael F. Taras , Alexander Lifson
Inventor： Michael F. Taras , Alexander Lifson
IPC: F25B41/00
CPC classification number: F25B1/10 , F24F3/153 , F25B9/008 , F25B2309/061 , F25B2400/04 , F25B2400/072
Abstract: A refrigerant system is provided with at least two stages of compression connected in series. An intercooler is positioned intermediate the two stages and is cooled by an indoor air stream. The intercooler is positioned to be in a path of air flow passing over an indoor heat exchanger, and preferably downstream of the indoor heat exchanger, in relation to this airflow. The intercooler cools the refrigerant flowing between the two compression stages as well as provides the reheat function. Benefits with regard to system performance (efficiency, capacity and reliability) are achieved with no additional circuitry or components required to provide the intercooler and reheat functions. This invention is particularly important for the CO2 refrigerant systems operating in the transcritical cycle. Methods of control are presented for both the intercooler and reheat functions.
Abstract translation: 制冷剂系统具有串联连接的至少两级的压缩级。 中间冷却器位于两级之间，并被室内空气流冷却。 中间冷却器被定位成相对于该气流而位于通过室内热交换器，并且优选地在室内热交换器的下游的空气流的路径中。 中间冷却器冷却在两个压缩级之间流动的制冷剂，并提供再热功能。 无需额外的电路或组件来提供中间冷却器和再加热功能，可以实现系统性能（效率，容量和可靠性）的优势。 本发明对于在跨临界循环中运行的二氧化碳制冷剂系统特别重要。 给出了中冷器和再热功能的控制方法。
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公开(公告)号：US08347643B2
公开(公告)日：2013-01-08
申请号：US12161073
申请日：2006-05-01
Applicant: Michael F. Taras , Alexander Lifson
Inventor： Michael F. Taras , Alexander Lifson
CPC classification number: F25D21/125 , F24F3/153 , F24F11/43 , F25B47/022 , F25B2500/26 , F25B2500/27 , F25B2600/11 , F25B2700/02 , F25B2700/2117 , F25D2600/02
Abstract: Various control methods are disclosed for removing moisture from the external surfaces of an evaporator in a refrigerant system to avoid moisture entering a conditioned space. In one embodiment, the evaporator fan is driven in a reverse direction, and the air is guided to the outdoor environment. In other embodiments, a supplemental exhaust fan is utilized in conjunction with the evaporator fan. Also, a reheat circuit, hot gas bypass circuit, or specific features of a heat pump unit may be utilized to more efficiently perform the moisture removal.
Abstract translation: 公开了用于从制冷剂系统中的蒸发器的外表面去除水分的各种控制方法，以避免湿气进入调节空间。 在一个实施例中，蒸发器风扇沿相反方向驱动，并且空气被引导到室外环境。 在其他实施例中，辅助排风扇与蒸发器风扇结合使用。 此外，可以利用再热回路，热气旁通回路或热泵单元的特定特征来更有效地执行除湿。
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Patent Agency Ranking
公开(公告)号：US20120073318A1
公开(公告)日：2012-03-29
申请号：US13322954
申请日：2010-05-26
Applicant: Alexander Lifson , Mark J. Perkovich
Inventor： Alexander Lifson , Mark J. Perkovich
CPC classification number: F25B1/10 , F25B41/043 , F25B2400/0401 , F25B2400/13 , F25B2600/2501 , F25B2600/2509
Abstract: A refrigerant system capable of operating at multiple capacity modes includes an evaporator, a multi-stage compressor assembly, a first fluid flow path, a second fluid flow path, a first valve, and a second valve. The multi-stage compressor assembly has a first stage and a second stage. The first fluid flow path extends from the evaporator to the first stage of the multi-stage compressor assembly. The second fluid flow path connects to the first fluid flow path and to the multi-stage compressor assembly between the first stage and the second stage.
Abstract translation: 能够以多容量模式操作的制冷剂系统包括蒸发器，多级压缩机组件，第一流体流路，第二流体流路，第一阀和第二阀。 多级压缩机组件具有第一级和第二级。 第一流体流动路径从蒸发器延伸到多级压缩机组件的第一级。 第二流体流动路径连接到第一流体流动路径和第一阶段和第二阶段之间的多级压缩机组件。
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公开(公告)号：US08096139B2
公开(公告)日：2012-01-17
申请号：US12083704
申请日：2005-10-17
Applicant: Michael F. Taras , Alexander Lifson
Inventor： Michael F. Taras , Alexander Lifson
IPC: F25D17/00
CPC classification number: F25B49/025 , F04D27/004 , F25B2600/021 , F25B2600/111 , F25B2600/112 , F25B2700/15 , Y02B30/741 , Y02B30/743
Abstract: A refrigerant system (10, 100, 200) is provided with a power control system (30, 130, 230). The power control system adjusts the speed of the motors driving the refrigerant system components such as a compressor, a fan or a pump via a variable speed device (75, 175, 275) or bypasses the variable speed device (75, 175, 275) for normal operating speeds. A single power control system may be provided for the entire refrigerant system or each component may be independently controlled.
Abstract translation: 制冷剂系统（10,100,200）设置有功率控制系统（30,130,230）。 功率控制系统通过变速装置（75,175,275）来调节驱动诸如压缩机，风扇或泵的制冷剂系统组件的电动机的速度，或者绕过变速装置（75,175,275） 正常工作速度。 可以为整个制冷剂系统提供单个功率控制系统，或者可以独立地控制每个部件。
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8.发明授权Suction modulation valve for refrigerant system with adjustable opening for pulse width modulation control 有权用于制冷剂系统的吸入调节阀，具有用于脉宽调制控制的可调开口公开(公告)号：US07966838B2
公开(公告)日：2011-06-28
申请号：US12443720
申请日：2006-12-21
Applicant: Alexander Lifson , Michael F. Taras
Inventor： Alexander Lifson , Michael F. Taras
CPC classification number: F25B41/043 , F25B2600/2521 , F25B2700/1933 , F25B2700/197 , Y10T137/7736
Abstract: A pulse width modulation control is provided for a suction modulation valve in a refrigerant system. An intentional small “leakage” path is maintained through the suction modulation valve to ensure that the pressure inside the compressor shell does not decrease below a safe reliability threshold but, at the same time, does not exceed a certain value, which would cause the refrigerant system to operate inefficiently, when the pulse width modulation control has moved the suction modulation valve to a closed position. The size of this minimum “leakage” path is continuously adjusted to ensure that the optimum pressure inside the compressor shell is maintained regardless of the evaporator pressure and other operating conditions.
Abstract translation: 为制冷剂系统中的抽吸调节阀提供脉宽调制控制。 通过吸入调节阀保持有意的小的“泄漏”路径，以确保压缩机壳体内的压力不降低到低于安全可靠性阈值，但同时不超过一定值，这将导致制冷剂 当脉冲宽度调制控制已将吸入调节阀移动到关闭位置时，系统无效率地运行。 该最小“泄漏”路径的尺寸被连续地调节，以确保压缩机壳体内的最佳压力保持在与蒸发器压力等操作条件无关的情况下。
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公开(公告)号：US20110138827A1
公开(公告)日：2011-06-16
申请号：US13057959
申请日：2009-08-06
Applicant: Alexander Lifson , Michael F. Taras
Inventor： Alexander Lifson , Michael F. Taras
CPC classification number: F04B39/00 , F25B1/10 , F25B41/043 , F25B2400/13 , F25B2600/2509 , F25B2700/1931 , F25B2700/2106
Abstract: A method and system for operating a refrigerant system having a reciprocating compressor with a main cylinder module and an economizer cylinder module includes regulating a flow of refrigerant into the main cylinder module and regulating a flow of refrigerant into the economizer cylinder module. The main cylinder module and the economizer cylinder module have separate inlet and outlet discharge streams. The flow through each module is regulated as a function of an operating mode of the refrigerant system, which includes various modes of loading and unloading based, in part, on a cooling demand. In some embodiments, the refrigerant system may include a connector refrigerant line configured to redirect refrigerant from the economizer cylinder module to the main cylinder module or from the main cylinder module to the economizer cylinder module.
Abstract translation: 一种用于操作具有带有主缸模块和节能器缸模块的往复式压缩机的制冷剂系统的方法和系统包括调节制冷剂流入主缸模块并调节制冷剂流入节能器缸模块的流量。 主气缸模块和节能气缸模块具有独立的入口和出口排出流。 通过每个模块的流量作为制冷剂系统的操作模式的功能被调节，其包括部分地基于冷却需求的各种装载和卸载模式。 在一些实施例中，制冷剂系统可以包括连接器制冷剂管线，该连接器制冷剂管线被配置为将制冷剂从节能器缸体模块重新定向到主缸体模块或者从主缸体模块重定向到节能器缸模块。
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公开(公告)号：US20110094248A1
公开(公告)日：2011-04-28
申请号：US12997938
申请日：2007-12-20
Applicant: Michael F. Taras , Alexander Lifson
Inventor： Michael F. Taras , Alexander Lifson
CPC classification number: F25B1/10 , F25B2400/13 , F25B2600/0261 , F25B2600/2501 , F25B2600/2521
Abstract: The present disclosure provides a refrigerant system that comprises a compressor, a main refrigerant circuit, an economizer refrigerant circuit, and a bypass refrigerant circuit. The refrigerant system further comprises a single refrigerant flow control device switching between different operational modes to provide various degree of system unloading in operation. The present disclosure also provides a method of operating the refrigerant system.
Abstract translation: 本公开内容提供一种制冷剂系统，其包括压缩机，主制冷剂回路，节能器制冷剂回路和旁路制冷剂回路。 制冷剂系统还包括在不同操作模式之间切换的单个制冷剂流量控制装置，以在操作中提供各种程度的系统卸载。 本公开还提供了一种操作制冷剂系统的方法。
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