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    REFRIGERANT SYSTEM WITH PULSE WIDTH MODULATION CONTROL IN COMBINATION WITH EXPANSION DEVICE CONTROL
    72.
    发明申请
    REFRIGERANT SYSTEM WITH PULSE WIDTH MODULATION CONTROL IN COMBINATION WITH EXPANSION DEVICE CONTROL 审中-公开
    具有扩展设备控制组合的脉冲宽度调制控制的制冷系统

    公开(公告)号：US20100011792A1

    公开(公告)日：2010-01-21

    申请号：US12442775

    申请日：2006-11-07

    申请人： Alexander Lifson ,  Michael F. Taras ,  Mark A. Lifson

    发明人： Alexander Lifson ,  Michael F. Taras ,  Mark A. Lifson

    IPC分类号： F25B41/04 ,  F25B1/00 ,  F01C1/02 ,  F25B49/00

    CPC分类号： F25B41/043 ,  F25B1/04 ,  F25B49/022 ,  F25B2500/13 ,  F25B2600/23 ,  F25B2600/2513 ,  F25B2600/2521

    摘要： A refrigerant system is provided with pulse width modulation control to adjust the amount of refrigerant compressed by a compressor. In one embodiment, a pulse width modulation control controls a suction modulation valve cycled between open and closed positions. In a second embodiment, the compressor itself is cycled between a position at which it compresses refrigerant and a position at which the compression elements are disengaged. In either embodiment, the control also cycles the expansion device in concert with cycling the pulse width modulation valve or the compressor. In this manner, pressure fluctuations in the refrigerant system do not exceed desirable levels. Typical cycle time for pulse width modulation control is between 5 and 30 seconds, and typical offset (delay) time for an expansion device may be between 0 and 3 seconds.

    摘要翻译： 制冷剂系统具有脉宽调制控制，以调节由压缩机压缩的制冷剂量。 在一个实施例中，脉宽调制控制控制在打开位置和关闭位置之间循环的吸入调节阀。 在第二实施例中，压缩机本身在其压缩制冷剂的位置与压缩元件脱离的位置之间循环。 在任一实施例中，控制还使循环脉冲宽度调制阀或压缩机一起循环膨胀装置。 以这种方式，制冷剂系统中的压力波动不超过期望的水平。 脉冲宽度调制控制的典型周期时间在5到30秒之间，扩展设备的典型偏移（延迟）时间可能在0到3秒之间。

    ECONOMIZED REFRIGERANT VAPOR COMPRESSION SYSTEM FOR WATER HEATING
    73.
    发明申请
    ECONOMIZED REFRIGERANT VAPOR COMPRESSION SYSTEM FOR WATER HEATING 有权
    用于水加热的经济型制冷剂蒸汽压缩系统

    公开(公告)号：US20090293515A1

    公开(公告)日：2009-12-03

    申请号：US11917372

    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 ,  F25B1/10 ,  F01C1/04 ,  F25B41/00 ,  F25B5/00 ,  F25B27/00

    CPC分类号： F25B30/02 ,  F24D17/02 ,  F25B1/10 ,  F25B2339/047 ,  F25B2400/13 ,  F25B2600/0261

    摘要： An economized refrigerant vapor compression system (10) for water heating includes a refrigerant compression device (20), a refrigerant-to-water heat exchanger (30), an economizer heat exchanger (60), an evaporator (40) and a refrigerant circuit (70) providing a first flow path (OA, 70B, 70C, 70D) connecting the compression device (20), the refrigerant-to-liquid heat exchanger (30), the economizer heat exchanger (60) and the evaporator (40) in refrigerant circulation flow communication and a second flow path (70E) connecting the first flow path (62) through the economizer heat exchanger (60) to the compression device (20). The economizer heat exchanger (60) has a first pass (62) for receiving a first portion of the refrigerant having traversed he refrigerant-to-liquid heat exchanger and a second pass (64) for receiving a second portion of the refrigerant having traversed the refrigerant-to-liquid heat exchanger. The refrigerant system (10) has a bypass unloading branch (70F) with a c pass flow control device (92) connecting economizer (70E) and suction (OD) refrigerant lines for providing additional capacity adjustment.

    摘要翻译： 用于水加热的经济的制冷剂蒸气压缩系统（10）包括制冷剂压缩装置（20），制冷剂 - 水热交换器（30），节能器热交换器（60），蒸发器（40）和制冷剂回路 （70），连接压缩装置（20），制冷剂对液体热交换器（30），节能器热交换器（60）和蒸发器（40）之间的第一流路（OA，70B，70C，70D） 以及将第一流路（62）经由节能热交换器（60）连接到压缩装置（20）的第二流路（70E）。 节能器热交换器（60）具有第一通路（62），用于接收已经穿过制冷剂对液体热交换器的制冷剂的第一部分，以及用于接收经过该制冷剂至液体热交换器的制冷剂的第二部分的第二通道（64） 制冷剂对液体的热交换器。 制冷剂系统（10）具有旁通卸载分支（70F），其具有连接节能器（70E）和抽吸（OD）制冷剂管线的循环流量控制装置（92），用于提供额外的容量调节。

    SYSTEM PERFORMANCE CORRECTION BY MODIFYING REFRIGERANT COMPOSITION IN A REFRIGERANT SYSTEM
    74.
    发明申请
    SYSTEM PERFORMANCE CORRECTION BY MODIFYING REFRIGERANT COMPOSITION IN A REFRIGERANT SYSTEM 审中-公开
    制冷系统中制冷剂组合物的系统性能校正

    公开(公告)号：US20090165472A1

    公开(公告)日：2009-07-02

    申请号：US12297260

    申请日：2006-04-25

    申请人： Alexander Lifson ,  Michael F. Taras

    发明人： Alexander Lifson ,  Michael F. Taras

    IPC分类号： F25B45/00 ,  F25B1/00

    CPC分类号： C09K5/045 ,  F25B9/006 ,  F25B45/00 ,  F25B2500/18 ,  F25J1/0249

    摘要： An adequate operation and performance of a refrigerant system includes the steps of adding a refrigerant that is different from the original refrigerant, into the refrigerant system should any operational problems be observed during operation of the refrigerant system. As an example, should the refrigerant system be cycling frequently, a lower pressure refrigerant may be added or replace, partially or fully, the refrigerant the system being initially charged with. By making this change, the present invention can, for example, lower the provided system capacity, and hence reduce the amount of cycling. Additionally, conditioned space comfort and system reliability would be improved. Further, changes over time, such as the degradation of the heat exchanger performance, and their negative effect on system operation can be alleviated by such a refrigerant substitution.

    摘要翻译： 如果在制冷剂系统的操作期间观察到任何操作问题，则制冷剂系统的适当操作和性能包括将与原始制冷剂不同的制冷剂加入制冷剂系统的步骤。 作为示例，如果制冷剂系统经常循环，则可以将初始加载的系统的制冷剂部分或全部地添加或更换低压制冷剂。 通过进行这种改变，本发明可以例如降低提供的系统容量，从而减少循环量。 此外，空调舒适性和系统可靠性将得到改善。 此外，通过这种制冷剂替代，可以减轻时间的变化，例如换热器性能的劣化及其对系统运行的负面影响。

    Controlling a voltage-to-frequency ratio for a variable speed drive in refrigerant systems
    76.
    发明授权
    Controlling a voltage-to-frequency ratio for a variable speed drive in refrigerant systems 有权
    控制制冷系统中变速驱动器的电压 - 频率比

    公开(公告)号：US07481069B2

    公开(公告)日：2009-01-27

    申请号：US11191679

    申请日：2005-07-28

    申请人： Alexander Lifson ,  Michael F. Taras

    发明人： Alexander Lifson ,  Michael F. Taras

    IPC分类号： F25B1/00 ,  F25B49/00

    CPC分类号： F25B49/025 ,  F25B41/043 ,  F25B2600/021 ,  F25B2600/0261 ,  F25B2600/111 ,  F25B2600/112 ,  Y02B30/741 ,  Y02B30/743

    摘要： A refrigerant system is provided with at least one variable frequency drive. In the past, the variable frequency drives were operable such that the voltage-to-frequency ratio remained constant regardless of operation. The present invention realizes that variations in the voltage-to-frequency ratio may be desirable, and the refrigerant system control drives the motors associated with relevant refrigerant system components to reach an optimum voltage-to-frequency ratios in order to achieve higher efficiency, provide operational safety and prevent nuisance shutdowns.

    摘要翻译： 制冷剂系统具有至少一个变频驱动器。 在过去，可变频率驱动器是可操作的，使得电压 - 频率比保持恒定，而不管操作。 本发明实现了电压 - 频率比的变化是可取的，并且制冷剂系统控制驱动与相关制冷剂系统部件相关联的电动机达到最佳的电压 - 频率比，以便实现更高的效率，提供 操作安全，防止烦扰关闭。

    Including Energy Price in Optimizing Refrigerant System Operation
    77.
    发明申请
    Including Energy Price in Optimizing Refrigerant System Operation 审中-公开
    包括优化制冷剂系统运行中的能源价格

    公开(公告)号：US20090012651A1

    公开(公告)日：2009-01-08

    申请号：US12160356

    申请日：2006-04-12

    申请人： Alexander Lifson ,  Michael F. Taras

    发明人： Alexander Lifson ,  Michael F. Taras

    IPC分类号： G05B15/00 ,  G01R21/133

    CPC分类号： G05D23/1923 ,  F24F11/30 ,  F24F11/47 ,  G06Q50/06

    摘要： An HVAC & R system controller is provided with time pricing information for electricity and/or natural gas. This pricing information is utilized to determine the most efficient system configuration and operation schedule to achieve desired conditions in an indoor environment. As an example, if electricity prices are high, then the controller might rely on a natural gas powered furnace, rather than on the higher-electricity consuming heat pump. In another example, thermal storage media can be charged during off-peak hours when cost of electricity is low and release its thermal potential during high demand periods.

    摘要翻译： 为HVAC＆R系统控制器提供电力和/或天然气的时间价格信息。 该定价信息用于确定在室内环境中实现所需条件的最有效的系统配置和操作计划。 例如，如果电价高，那么控制器可能依靠天然气供电的炉子，而不是依靠较高耗电的热泵。 在另一个例子中，热存储介质可在非高峰时段充电，当电力成本低时，在高需求期间释放其热势。

    Refrigerant System Unloading By-Pass Into Evaporator Inlet
    78.
    发明申请
    Refrigerant System Unloading By-Pass Into Evaporator Inlet 有权
    制冷剂系统卸载进入蒸发器入口

    公开(公告)号：US20080314055A1

    公开(公告)日：2008-12-25

    申请号：US12159026

    申请日：2006-01-27

    申请人： Alexander Lifson

    发明人： Alexander Lifson

    IPC分类号： F25B41/00 ,  F25B1/00 ,  F25B41/04 ,  F04C18/16 ,  F04C18/02

    CPC分类号： F25B49/022 ,  F25B1/04 ,  F25B1/10 ,  F25B31/004 ,  F25B2400/0403 ,  F25B2400/0411 ,  F25B2600/0261 ,  F25B2600/0262 ,  F25B2600/2501 ,  F25B2600/2513 ,  F25B2600/2521 ,  F25B2700/21151

    摘要： A refrigerant system has at least one unloader valve selectively communicating refrigerant between the compressor compression chambers and a point upstream of the evaporator. When the compressor is run in unloaded mode, partially compressed refrigerant is returned to a point upstream of the evaporator. In an unloaded mode, a higher refrigerant mass flow rate passes through the evaporator, as compared to prior art where the by-passed refrigerant was returned downstream of the evaporator. This increases system efficiency by more effectively returning oil which otherwise might be left in the evaporator back to the compressor. Also, the amount of refrigerant superheat entering the compressor in unloaded operation is reduced as compared to the prior art compressor systems, wherein the by-passed refrigerant is returned directly to the compressor suction line. Reduced refrigerant superheat increases system efficiency, improves motor performance and reduces compressor discharge temperature. Also, by moving the unloader line further away from the compressor, the compressor replacement is simplified as there is no connecting unloader line directly in front of the compressor.

    摘要翻译： 制冷剂系统具有至少一个卸载阀，其选择性地将压缩机压缩室之间的制冷剂和蒸发器上游的点连通。 当压缩机以卸载模式运行时，部分压缩的制冷剂返回到蒸发器上游的一个点。 在空载模式中，与现有技术相比，较高的制冷剂质量流量通过蒸发器，其中旁路制冷剂返回到蒸发器的下游。 这可以通过更有效地将返回的油返回到蒸发器中返回压缩机来提高系统效率。 此外，与现有技术的压缩机系统相比，在卸载操作中进入压缩机的制冷剂过热量减少，其中旁路制冷剂直接返回到压缩机吸入管线。 降低制冷剂过热度可提高系统效率，改善电机性能并降低压缩机排放温度。 此外，通过将卸载器线移动离开压缩机，压缩机更换被简化，因为在压缩机前面没有直接卸载线。

    Economized Refrigerant System with Vapor Injection at Low Pressure
    79.
    发明申请
    Economized Refrigerant System with Vapor Injection at Low Pressure 审中-公开
    低压蒸汽注入的经济型制冷剂系统

    公开(公告)号：US20080256961A1

    公开(公告)日：2008-10-23

    申请号：US12088158

    申请日：2005-10-20

    申请人： Alexander Lifson ,  Michael F. Taras

    发明人： Alexander Lifson ,  Michael F. Taras

    IPC分类号： F25B1/00 ,  F04C18/00 ,  F16K31/02

    CPC分类号： F25B1/10 ,  F04C29/042 ,  F25B1/04 ,  F25B2400/13 ,  F25B2600/0261

    摘要： A refrigerant system with an economizer cycle incorporates a time dependant vapor injection scheme to reduce losses and enhance performance. The benefits of such an approach are particularly pronounced at low pressure ratios typical of air conditioning applications. The injection of refrigerant occurs during a limited time interval and at a particular point of time into a compression cycle. The vapor injection preferably occurs when the compression chamber are sealed (or about to be sealed off) from a suction port and continues until refrigerant pressure in the compression chambers is equal (or about to be equal) to the pressure at the injection line. This communication time constitutes about 35% of time of one revolution. In one embodiment, such time dependence of refrigerant vapor injection is provided by a specific compressor design. In another embodiment, a fast-acting solenoid valve is placed at the vicinity of the injection port to control the initiation and duration of the injection process. The benefits for an unloading scheme are disclosed as well.

    摘要翻译： 具有节能循环的制冷剂系统包含时间依赖性蒸气喷射方案，以减少损耗并提高性能。 这种方法的优点在空调应用的典型的低压比下特别显着。 制冷剂的注入在有限的时间间隔内和特定的时间点进入压缩循环。 优选地，当压缩室从吸入口密封（或将要被密封）并持续到压缩室中的制冷剂压力等于（或大致等于）注入管线处的压力时，蒸汽喷射优选地发生。 这个通信时间约为革命时间的35％。 在一个实施例中，通过特定的压缩机设计来提供制冷剂蒸气喷射的这种时间依赖性。 在另一个实施例中，快速作用的电磁阀被放置在喷射端口附近以控制喷射过程的启动和持续时间。 还披露了卸货方案的好处。