公开(公告)号：US08381538B2

公开(公告)日：2013-02-26

申请号：US12442758

申请日：2006-11-08

Applicant: Alexander Lifson ,  Michael F. Taras

Inventor： Alexander Lifson ,  Michael F. Taras

IPC: F25B1/00

CPC classification number: F25B13/00 ,  F25B1/02 ,  F25B1/04 ,  F25B1/10 ,  F25B9/008 ,  F25B2309/061 ,  F25B2313/02741 ,  F25B2400/072

Abstract: A heat pump refrigerant system is provided with at least two sequential stages of compression. An intercooler is positioned intermediate the two stages. The refrigerant flowing through the intercooler. is cooled by a secondary fluid such as ambient air. The intercooler is positioned to be in a path of air flow passing over an outdoor heat exchanger, and preferably upstream of the outdoor heat exchanger, in relation to this air flow. Benefits with regard to efficiency and capacity are achieved due to proposed system configuration in both heating and cooling modes of operation, while no additional circuitry or components are required to provide the intercooler function for the heat pump refrigerant system. This invention is particularly important for the CO2 heat pump refrigerant systems operating in the transcritical cycle.

Abstract translation: 热泵制冷剂系统具有至少两个连续的压缩级。 中间冷却器位于两个阶段之间。 制冷剂流过中冷器。 被二次流体例如环境空气冷却。 中间冷却器被定位成相对于该空气流通过室外热交换器，并且优选地在室外热交换器的上游的空气流的路径。 由于在加热和冷却运行模式下提出了系统配置，而对于效率和容量的益处是实现的，而不需要额外的电路或组件来为热泵制冷剂系统提供中间冷却器功能。 本发明对于在跨临界循环中运行的二氧化碳热泵制冷剂系统特别重要。

公开(公告)号：US08373099B2

公开(公告)日：2013-02-12

申请号：US12682131

申请日：2007-11-06

Applicant: Alexander Lifson ,  Michael F. Taras

Inventor： Alexander Lifson ,  Michael F. Taras

IPC: H05B3/02

CPC classification number: H01M8/04007 ,  H01M2250/405 ,  Y02B90/16

Abstract: A fuel cell is provided to furnish electrical power to an HVAC&R system, and the waste heat from the fuel cell is transferred to a secondary fluid directed to flow to the climate-controlled space of a building during periods of time in which heating is required. The heat rejected by the fuel cell may be a supplemental or primary source of heat as well used for precise temperature control within the climate-controlled space of the building. A channeling assembly is used to selectively direct the fuel cell heat either to and/or away from the climate-controlled space served by the HVAC&R system. Higher energy efficiencies of the HVAC&R equipment are achieved, and the “cold blow” phenomenon is reduced or eliminated.

Abstract translation: 提供燃料电池以向HVAC＆R系统提供电力，并且来自燃料电池的废热在要求加热的时间段期间被转移到指向流向建筑物的气候受控空间的二次流体。 由燃料电池排出的热量可能是补充或主要的热源，也可用于建筑物气候控制空间内的精确温度控制。 引导组件用于选择性地将燃料电池的热量引导到HVAC＆R系统所服务的气候控制空间和/或远离HVAC＆R系统所服务的气候控制空间。 实现了HVAC＆R设备的更高的能源效率，减少或消除了冷吹现象。

公开(公告)号：US20130031934A1

公开(公告)日：2013-02-07

申请号：US13581528

申请日：2011-03-25

Applicant: Hans-Joachim Huff ,  KeonWoo Lee ,  Lucy Yi Liu ,  Suresh Duraisamy ,  Zvonko Asprovski ,  Kursten Lamendola ,  Alexander Lifson

Inventor： Hans-Joachim Huff ,  KeonWoo Lee ,  Lucy Yi Liu ,  Suresh Duraisamy ,  Zvonko Asprovski ,  Kursten Lamendola ,  Alexander Lifson

IPC: F25B1/10

CPC classification number: F25B1/10 ,  F25B2309/061 ,  F25B2400/04 ,  F25B2400/072 ,  F25B2400/13 ,  F28D7/10

Abstract: A refrigerant vapor compression system includes a compression device having at least a first compression stage and a second compression stage, a refrigerant heat rejection heat exchanger disposed downstream with respect to refrigerant flow of the second compression stage, and a refrigerant intercooler disposed intermediate the first compression stage and the second compression stage. The refrigerant intercooler is disposed downstream of the refrigerant heat rejection heat exchanger with respect to the flow of a secondary fluid. A second refrigerant heat rejection heat exchanger may be disposed downstream with respect to refrigerant flow of the aforesaid refrigerant heat rejection heat exchanger, and a second refrigerant intercooler may be disposed intermediate the first compression stage and the second compression stage and downstream with respect to refrigerant flow of the aforesaid refrigerant intercooler.

Abstract translation: 制冷剂蒸汽压缩系统包括至少具有第一压缩级和第二压缩级的压缩装置，设置在第二压缩级的制冷剂流的下游的制冷剂排热热交换器，以及设置在第一压缩级之间的制冷剂中间冷却器 阶段和第二压缩阶段。 制冷剂中间冷却器相对于二次流体的流动设置在制冷剂排热换热器的下游。 第二制冷剂排热热交换器可以设置在上述制冷剂排热热交换器的制冷剂流动的下游，第二制冷剂中间冷却器可以设置在第一压缩级和第二压缩级的中间，并且相对于制冷剂流 的上述制冷剂中间冷却器。

公开(公告)号：US08337176B2

公开(公告)日：2012-12-25

申请号：US12444758

申请日：2006-12-26

Applicant: Alexander Lifson ,  Michael F. Taras

Inventor： Alexander Lifson ,  Michael F. Taras

IPC: F04B23/04

CPC classification number: F04C28/02 ,  F25B2400/075 ,  F25B2400/0751 ,  Y10T137/86163

Abstract: A compressor assembly includes at least two tandem compressors. Tandem compressors have at least one common suction manifold, communicating a source of working fluid to be compressed by each of at least two compressors, and at least one common discharge manifold communicating a compressed fluid downstream for further use. A common intermediate pressure manifold communicates with intermediate pressure ports in at least two compressors. The intermediate manifold may communicate fluid to or out of the at least two compressors. There is normally no direct communication between suction and discharge manifolds.

Abstract translation: 压缩机组件包括至少两个串列式压缩机。 串联式压缩机具有至少一个共同的抽吸歧管，将至少两个压缩机中的每个压缩机压缩的工作流体源连通，以及将下游的压缩流体连通以进一步使用的至少一个公共排放歧管。 常见的中压歧管与至少两个压缩机中的中压端口连通。 中间歧管可将流体与至少两个压缩机连通或流出。 吸入和排出歧管之间通常不会有直接的连通。

公开(公告)号：US08333088B2

公开(公告)日：2012-12-18

申请号：US12443889

申请日：2006-12-26

Applicant: Michael F. Taras ,  Alexander Lifson

Inventor： Michael F. Taras ,  Alexander Lifson

IPC: F25B39/02

CPC classification number: F28D1/05391 ,  F25B39/00 ,  F28D2021/007 ,  F28D2021/0071 ,  F28D2021/0073 ,  F28F9/182 ,  F28F2275/04

Abstract: A parallel flow heat exchanger is disclosed having heat transfer tubes with a plurality of relatively small channels, which are aligned in a parallel manner, and wherein the heat transfer tubes are in fluid communication with at least one manifold structure, are received in manifold wall openings and are attached to the manifold structure by brazing process The manifold walls and/or the tubes are modified to minimize the likelihood of brazing material plugging or at least partially blocking any of the plurality of channels In one feature, the openings in the manifold structure are formed by deforming the material of the manifold structure outwardly In another feature, the edges of the heat transfer tubes may be formed such that the outermost end channels within each heat transfer tube extend farther inwardly than do the central channels Various design configurations are disclosed.

Abstract translation: 公开了一种平行流热交换器，其具有多个相对小的通道的传热管，其以平行的方式排列，并且其中传热管与至少一个歧管结构流体连通，被容纳在歧管壁开口 并且通过钎焊处理附接到歧管结构。歧管壁和/或管被修改以最小化钎焊材料堵塞或至少部分地阻挡多个通道中的任何通道的可能性。在一个特征中，歧管结构中的开口是 通过使歧管结构的材料向外变形而形成。另一特征是，传热管的边缘可以形成为使得每个传热管内的最外端通道比中央通道更向内延伸。公开了各种设计构造。

公开(公告)号：US08240161B2

公开(公告)日：2012-08-14

申请号：US12307780

申请日：2006-08-08

Applicant: Alexander Lifson ,  Michael F. Taras

Inventor： Alexander Lifson ,  Michael F. Taras

IPC: F25B41/04 ,  F25B49/00

CPC classification number: F25B41/043 ,  F04B49/225 ,  F25B31/006 ,  F25B2600/2521 ,  F25B2700/21152 ,  F25B2700/21155 ,  F25B2700/21156

Abstract: A refrigerant system is provided with a pulse width modulation valve. A compressor temperature is monitored to prevent potential reliability problems and compressor failures due to an excessive temperature inside the compressor. A control changes the pulse width modulation valve duty cycle rate to maintain temperature within specified limits, while achieving the desired capacity, and complying with design requirements of a conditioned environment, without compromising refrigerant system reliability. As the compressor temperature increases, the pulse width modulation valve duty cycle time is adjusted to ensure that adequate amount of refrigerant is circulated through the compressor to cool the compressor internal components.

Abstract translation: 制冷剂系统设有脉宽调制阀。 监控压缩机温度，以防止由于压缩机内部温度过高引起的潜在可靠性问题和压缩机故障。 控制器改变脉宽调制阀占空比，将温度保持在规定的限度内，同时达到所需容量，并符合条件环境的设计要求，而不会影响制冷系统的可靠性。 当压缩机温度升高时，调整脉宽调制阀占空比时间，以确保足够量的制冷剂通过压缩机循环以冷却压缩机内部组件。

公开(公告)号：US08109101B2

公开(公告)日：2012-02-07

申请号：US12375277

申请日：2006-10-23

Applicant: Michael F. Taras ,  Alexander Lifson

Inventor： Michael F. Taras ,  Alexander Lifson

IPC: F25D17/06

CPC classification number: G01K15/007 ,  F24F11/30 ,  F24F2110/10 ,  F25B49/005 ,  F25B2500/06 ,  G01K13/00 ,  G01K15/00

Abstract: A multi-zone HVAC&R system has its control programmed to provide diagnostic testing of air handling components and refrigerant components associated with each climate controlled zone in sequence. The control changes the original position of the corresponding component and a resultant change in a relevant operational parameter is sensed. If the actual change is outside of the tolerance band associated with the expected change, then the determination is made that the component under consideration is malfunctioning. The periodicity of a diagnostic procedure for a particular component is typically defined by its criticality and reliability level. If the change in the corresponding operation parameter is recorded and stored in the database, the component degradation can be observed over time and a prognostic prediction can be made when a particular component requires preventive maintenance or replacement.

Abstract translation: 多区域HVAC＆R系统的控制程序是按顺序为每个气候控制区域提供空气处理组件和制冷剂组分的诊断测试。 该控制改变相应部件的原始位置，并检测相关操作参数中的结果变化。 如果实际变化超出与预期变化相关联的公差带，则确定正在考虑的部件发生故障。 特定组件的诊断程序的周期性通常由其临界性和可靠性水平来定义。 如果相应的操作参数的变化被记录并存储在数据库中，则可以随时间观察组件退化，并且当特定组件需要预防性维护或更换时，可以进行预测。

公开(公告)号：US08069683B2

公开(公告)日：2011-12-06

申请号：US12159026

申请日：2006-01-27

Applicant: Alexander Lifson

Inventor： Alexander Lifson

IPC: F25B49/00 ,  F25B1/10

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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：USRE42966E1

公开(公告)日：2011-11-29

申请号：US11397888

申请日：2006-04-04

Applicant: Alexander Lifson ,  Michael F. Taras

Inventor： Alexander Lifson ,  Michael F. Taras

IPC: F25B1/10

CPC classification number: F25B41/04 ,  F25B2400/075 ,  F25B2500/28 ,  F25B2600/2519

Abstract: A refrigerant cycle is disclosed having a number of compressors operating in tandem and supplying a compressed refrigerant to a refrigerant system. Discharge lines communicate a compressed refrigerant to a central discharge line for receiving flow from all tandem compressors. A control is operational to determine a number of compressors need to be operated or whether some compressors should be shutdown to satisfy load requirements. Shutoff valves are placed on discharge lines outwardly of the shell of the compressors. That can be shutdown during part load operation. These shutoff valves are closed when their associated compressors are stopped to prevent backflow of refrigerant from operating compressors through the shutoff compressor, and into the system suction side. Additionally, high pressure differential across the compressor internal discharge check valve is eliminated and the possibility of compressor flooding through a discharge line is reduced. Thus, compressor/system performance is enhanced and reliability is improved.

Abstract translation: 公开了一种制冷剂循环，其具有串联运行的多个压缩机并将压缩的制冷剂供应到制冷剂系统。 排放管线将压缩的制冷剂传送到中央排放管线，用于接收来自所有串联式压缩机的流量。 控制器可操作以确定需要操作的压缩机数量，或者某些压缩机是否应关闭以满足负载要求。 截止阀被放置在压缩机壳体外部的排出管线上。 这可以在部分加载操作期间关闭。 当关联的压缩机停止时，这些截止阀关闭，以防止制冷剂从操作压缩机通过关闭压缩机回流到系统吸入侧。 此外，消除了压缩机内部排放止回阀两端的高压差，减少了通过排放管道的压缩机溢流的可能性。 因此，提高了压缩机/系统性能，提高了可靠性。

公开(公告)号：US07997092B2

公开(公告)日：2011-08-16

申请号：US12679757

申请日：2007-09-26

Applicant: Alexander Lifson ,  Michael F. Taras

Inventor： Alexander Lifson ,  Michael F. Taras

IPC: F25B1/00

CPC classification number: F25B41/04 ,  F25B41/043 ,  F25B2400/0409 ,  F25B2400/0411 ,  F25B2400/13 ,  F25B2700/2104

Abstract: A method is provided for operating a refrigerant vapor compression system at substantially zero cooling capacity to facilitate tight temperature control within a climate-controlled environment associated with the refrigerant vapor compression system. The method includes the step of diverting substantially all refrigerant flow from the primary refrigerant flow circuit of the refrigerant vapor compression system at a first location downstream, with respect to refrigerant flow, of the heat rejection heat exchanger and upstream, with respect to refrigerant flow, of the evaporator refrigerant expansion device to reenter the primary refrigerant flow circuit at a second location downstream, with respect to refrigerant flow, of the evaporator and upstream, with respect to refrigerant flow, of the compression device.

Abstract translation: 提供了一种用于以基本上零的冷却能力操作制冷剂蒸汽压缩系统的方法，以便在与制冷剂蒸气压缩系统相关的气候受控环境中进行紧密的温度控制。 该方法包括以下步骤：在制冷剂蒸气压缩系统的基本制冷剂流动回路中相对于制冷剂流动相对于排热热交换器和上游的制冷剂流向下游的第一位置将基本上所有的制冷剂流分流， 的蒸发器制冷剂膨胀装置，以相对于蒸发器的制冷剂流动相对于压缩装置的制冷剂流重新进入第一制冷剂流动回路。