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1. 发明申请

US20110132015A1 DEDICATED PULSING VALVE FOR COMPRESSOR CYLINDER 有权
标题翻译：用于压缩机气缸的专用脉冲阀
公开(公告)号：US20110132015A1
公开(公告)日：2011-06-09
申请号：US13058725
申请日：2009-08-11
申请人： Alexander Lifson , Sriram Srinivasan , Paul J. Flanigan
发明人： Alexander Lifson , Sriram Srinivasan , Paul J. Flanigan
IPC分类号： F25B49/02 , F25B1/00 , F04B27/00
CPC分类号： F04B7/00 , F04B1/02 , F04B1/0452
摘要： A reciprocating piston compressor for use in a refrigerant compression circuit comprises first and second intake manifolds, first and second reciprocating piston compression units, an outlet manifold and a first pulsing valve. The intake manifolds segregate inlet flow into the compressor. The first and second reciprocating piston compression units receive flow from the first and second intake manifolds, respectively. The outlet manifold collects and distributes compressed refrigerant from the compression units. The first pulsing valve is mounted externally of the first intake manifold to regulate refrigerant flow into the first intake manifold. In another embodiment, a second valve is mounted externally of the second intake manifold to regulate flow into the second intake manifold, and the first and second valves are operated by a controller. The controller activates the first valve with variable width pulses having intervals less than an operating inertia of the refrigerant compression circuit.
摘要翻译：用于制冷剂压缩回路的往复活塞式压缩机包括第一和第二进气歧管，第一和第二往复活塞压缩单元，出口歧管和第一脉动阀。进气歧管隔离进入压缩机的入口流。第一和第二往复活塞压缩单元分别接收来自第一和第二进气歧管的流量。出口歧管从压缩单元收集和分配压缩的制冷剂。第一脉冲阀安装在第一进气歧管的外部以调节进入第一进气歧管的制冷剂流。在另一个实施例中，第二阀安装在第二进气歧管的外部以调节进入第二进气歧管的流量，并且第一和第二阀由控制器操作。控制器以可变宽度脉冲激活具有小于制冷剂压缩回路的操作惯性的间隔的第一阀。

2. 发明授权

US08726679B2 Dedicated pulsing valve for compressor cylinder 有权
标题翻译：压缩机气缸专用脉动阀
公开(公告)号：US08726679B2
公开(公告)日：2014-05-20
申请号：US13058725
申请日：2009-08-11
申请人： Alexander Lifson , Sriram Srinivasan , Paul J. Flanigan
发明人： Alexander Lifson , Sriram Srinivasan , Paul J. Flanigan
IPC分类号： F25B49/02 , F04B35/00
CPC分类号： F04B7/00 , F04B1/02 , F04B1/0452
摘要： A reciprocating piston compressor for use in a refrigerant compression circuit comprises first and second intake manifolds, first and second reciprocating piston compression units, an outlet manifold and a first pulsing valve. The intake manifolds segregate inlet flow into the compressor. The first and second reciprocating piston compression units receive flow from the first and second intake manifolds, respectively. The outlet manifold collects and distributes compressed refrigerant from the compression units. The first pulsing valve is mounted externally of the first intake manifold to regulate refrigerant flow into the first intake manifold. In another embodiment, a second valve is mounted externally of the second intake manifold to regulate flow into the second intake manifold, and the first and second valves are operated by a controller. The controller activates the first valve with variable width pulses having intervals less than an operating inertia of the refrigerant compression circuit.
摘要翻译：用于制冷剂压缩回路的往复活塞式压缩机包括第一和第二进气歧管，第一和第二往复活塞压缩单元，出口歧管和第一脉动阀。进气歧管隔离进入压缩机的入口流。第一和第二往复活塞压缩单元分别接收来自第一和第二进气歧管的流量。出口歧管从压缩单元收集和分配压缩的制冷剂。第一脉冲阀安装在第一进气歧管的外部以调节进入第一进气歧管的制冷剂流。在另一个实施例中，第二阀安装在第二进气歧管的外部以调节进入第二进气歧管的流量，并且第一和第二阀由控制器操作。控制器以可变宽度脉冲激活具有小于制冷剂压缩回路的操作惯性的间隔的第一阀。

3. 发明申请

US20080223057A1 Refrigerant System with Pulse Width Modulated Components and Variable Speed Compressor 审中-公开
标题翻译：具有脉宽调制元件和变速压缩机的制冷剂系统
公开(公告)号：US20080223057A1
公开(公告)日：2008-09-18
申请号：US12088022
申请日：2005-10-26
申请人： Alexander Lifson , Sriram Srinivasan
发明人： Alexander Lifson , Sriram Srinivasan
IPC分类号： F25B41/04 , F25B41/00 , F25B49/00
CPC分类号： F25B49/025 , F04C28/08 , F04C28/26 , F04C29/042 , F25B1/04 , F25B41/043 , F25B2400/13 , F25B2600/0253 , F25B2600/0261 , F25B2600/2521 , Y02B30/741
摘要： A variable speed drive is provided for operating a compressor motor in a refrigerant system. When a low load situation has been determined by the refrigerant system controls, the variable speed drive operates the compressor motor at lower speed mode of operation. Further, the operation of the variable speed drive is combined with a pulse width modulation control of different system components. In particular, at least one valve or compressor can be can be rapidly cycled by the control to regulate amount of refrigerant passing through the valve or compressor. Example valves would include a shut-off valve for an economizer cycle, an unloader valve, or a suction modulation valve.
摘要翻译：提供了用于在制冷剂系统中操作压缩机电动机的变速驱动器。当由制冷剂系统控制确定低负载情况时，变速驱动器以较低速运行模式操作压缩机马达。此外，变速驱动器的操作与不同系统部件的脉宽调制控制相结合。特别地，至少一个阀门或压缩机可以通过控制器快速循环，以调节通过阀门或压缩机的制冷剂量。示例性阀门将包括用于节能循环的截止阀，卸载阀或抽吸调节阀。

4. 发明授权

US09139066B2 Combined operation and control of suction modulation and pulse width modulation valves 有权
标题翻译：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
申请人： Alexander Lifson , Michael F. Taras
发明人： Alexander Lifson , Michael F. Taras
IPC分类号： F25B41/04 , F25B1/00 , B60H1/00
CPC分类号： B60H1/00428 , B60H1/3223 , F25B41/043 , F25B2600/2521 , Y02T10/88
摘要： 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.
摘要翻译：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。

5. 发明授权

US08956135B2 Screw compressor with asymmetric ports 有权
标题翻译：螺旋压缩机具有不对称端口
公开(公告)号：US08956135B2
公开(公告)日：2015-02-17
申请号：US12935493
申请日：2009-05-26
申请人： Alexander Lifson
发明人： Alexander Lifson
IPC分类号： F04C2/107 , F01C1/107 , F04C18/16 , F04C29/00
CPC分类号： F04C18/165 , F04C29/0035 , F04C2250/10
摘要： 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.
摘要翻译：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。

6. 发明授权

US08375735B2 Refrigeration systems with voltage modulated compressor motors and methods of their control 失效
标题翻译：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
申请人： Alexander Lifson , Michael F. Taras
发明人： Alexander Lifson , Michael F. Taras
IPC分类号： F25B49/00 , F25B1/00
CPC分类号： F25B49/025 , F25B2600/021 , F25B2600/0251 , F25B2600/0252 , F25B2600/026 , F25B2600/2521 , Y02B30/741
摘要： 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.
摘要翻译：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。

7. 发明授权

US08356491B2 Refrigerant system with intercooler utilized for reheat function 有权
标题翻译：具有用于再热功能的中间冷却器的制冷剂系统
公开(公告)号：US08356491B2
公开(公告)日：2013-01-22
申请号：US12447492
申请日：2006-12-21
申请人： Michael F. Taras , Alexander Lifson
发明人： Michael F. Taras , Alexander Lifson
IPC分类号： F25B41/00
CPC分类号： F25B1/10 , F24F3/153 , F25B9/008 , F25B2309/061 , F25B2400/04 , F25B2400/072
摘要： 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.
摘要翻译：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。

8. 发明授权

US08347643B2 Indoor air quality improvement by re-evaporation control 失效
标题翻译：通过再蒸发控制改善室内空气质量
公开(公告)号：US08347643B2
公开(公告)日：2013-01-08
申请号：US12161073
申请日：2006-05-01
申请人： Michael F. Taras , Alexander Lifson
发明人： Michael F. Taras , Alexander Lifson
IPC分类号： F25D17/00 , F25D21/00
CPC分类号： F25D21/125 , F24F3/153 , F24F11/43 , F25B47/022 , F25B2500/26 , F25B2500/27 , F25B2600/11 , F25B2700/02 , F25B2700/2117 , F25D2600/02
摘要： 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.
摘要翻译：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。

9. 发明申请

US20120073318A1 Refrigerant System With Multiple Load Modes 有权
标题翻译：具有多种负荷模式的制冷剂系统
公开(公告)号：US20120073318A1
公开(公告)日：2012-03-29
申请号：US13322954
申请日：2010-05-26
申请人： Alexander Lifson , Mark J. Perkovich
发明人： Alexander Lifson , Mark J. Perkovich
IPC分类号： F25B49/02 , F25B1/10
CPC分类号： F25B1/10 , F25B41/043 , F25B2400/0401 , F25B2400/13 , F25B2600/2501 , F25B2600/2509
摘要： 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.
摘要翻译：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。

10. 发明授权

US08096139B2 Refrigerant system with variable speed drive 有权
标题翻译：具有变速驱动的制冷剂系统
公开(公告)号：US08096139B2
公开(公告)日：2012-01-17
申请号：US12083704
申请日：2005-10-17
申请人： Michael F. Taras , Alexander Lifson
发明人： Michael F. Taras , Alexander Lifson
IPC分类号： F25D17/00
CPC分类号： F25B49/025 , F04D27/004 , F25B2600/021 , F25B2600/111 , F25B2600/112 , F25B2700/15 , Y02B30/741 , Y02B30/743
摘要： 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.
摘要翻译：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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