公开(公告)号：US20060053822A1

公开(公告)日：2006-03-16

申请号：US10942695

申请日：2004-09-16

Applicant: Michael Taras ,  Alexander Lifson

Inventor： Michael Taras ,  Alexander Lifson

IPC: F25D17/06 ,  F25B13/00

CPC classification number: F24F3/153 ,  F25B13/00 ,  F25B2313/0212 ,  F25B2313/02731 ,  F25B2313/02742 ,  F25B2313/02743 ,  F25B2400/06 ,  F25B2600/2507

Abstract: In a multi-circuit heat pump system least one of the circuits has a reheat function. Various reheat concepts may be independently utilized for each circuit to reheat and dehumidify air. Moreover, the ability to bypass refrigerant around the outdoor heat exchanger may also be provided. Communication means between the circuits may be present to re-optimize the refrigerant charge and to provide better control over system operational parameters. The above mentioned control functions and design features assure system flexibility in satisfying a wide spectrum of market requirements and potential applications by operation in a variety of cooling, heating and dehumidification regimes and a combination of thereof.

Abstract translation: 在多回路热泵系统中，至少一个电路具有再热功能。 各个再加热概念可以独立地用于每个回路以再加热和除湿空气。 此外，还可以提供在室外热交换器周围绕制冷剂的能力。 可能存在电路之间的通信装置以重新优化制冷剂充注并且提供对系统操作参数的更好控制。 上述控制功能和设计特征通过在各种冷却，加热和除湿方案及其组合中的操作来确保满足广泛市场需求和潜在应用的系统灵活性。

公开(公告)号：US20060053820A1

公开(公告)日：2006-03-16

申请号：US10942436

申请日：2004-09-16

Applicant: Michael Taras ,  Alexander Lifson

Inventor： Michael Taras ,  Alexander Lifson

IPC: F25B13/00

CPC classification number: F24F3/153 ,  F25B13/00 ,  F25B2313/021 ,  F25B2313/02741 ,  F25B2400/0405 ,  F25B2500/02

Abstract: A refrigerant heat pump system is operable in both heating and cooling modes. A reheat circuit is integrated into the system schematic to provide improved control over temperature and humidity and to cover a wide spectrum of sensible and latent capacity demands. In the heating mode, the reheat coil is utilized to act as a portion of the enlarged indoor heat exchanger (a condenser in this case), in order to enhance system efficiency without the capacity loss. In some cases, where the designer can choose between the efficiency and capacity augmentation, selective operation of the reheat coil may offer an additional step of capacity modulation, in the heating mode. System reliability is improved through a reduction of start/stop cycles. Although various reheat coil arrangements in relation to the indoor and outdoor heat exchangers are offered and reheat concepts are considered, the benefits of the invention are independent from and transparent to such system design features.

Abstract translation: 制冷剂热泵系统可以在加热和冷却两种模式下操作。 再加热电路集成到系统原理图中，以提供对温度和湿度的改进控制，并涵盖广泛的敏感和潜在能力需求。 在加热模式中，为了提高系统效率而没有容量损失，利用再热线圈作为放大的室内热交换器（在这种情况下为冷凝器）的一部分。 在某些情况下，设计师可以在效率和容量增加之间进行选择，再加热线圈的选择性操作可以在加热模式下提供额外的容量调制步骤。 通过减少启动/停止循环来提高系统的可靠性。 虽然提供了关于室内和室外热交换器的各种再热线圈装置，并且考虑了再热概念，但是本发明的优点是独立于并且对这种系统设计特征是透明的。

公开(公告)号：US07000423B2

公开(公告)日：2006-02-21

申请号：US10692511

申请日：2003-10-24

Applicant: Alexander Lifson ,  Michael F. Taras ,  Thomas J. Dobmeier

Inventor： Alexander Lifson ,  Michael F. Taras ,  Thomas J. Dobmeier

IPC: F25B13/00

CPC classification number: F25B13/00 ,  F25B41/003 ,  F25B41/04 ,  F25B2400/13

Abstract: A refrigerant system is operable in either a heating mode or cooling mode. The system is also provided with an economizer cycle that will function in either heating mode or cooling mode. A pair of economizer heat exchangers are positioned adjacent to an air conditioning economizer expansion device, and a heat pump economizer expansion device, respectively. A control for the system will control the opening either the air conditioning economizer expansion device or the heat pump economizer expansion device, dependent on whether economized operation is desired, and whether the system is in cooling or heating mode. Thus, a pair of heat exchangers are utilized, with one being selected for economizer operation dependent on whether the system is in cooling or heating mode.

Abstract translation: 制冷剂系统可以在加热模式或冷却模式中操作。 该系统还具有将在加热模式或冷却模式下工作的节能循环。 一对节能器热交换器分别位于空调节能器膨胀装置和热泵节能器膨胀装置附近。 系统的控制将根据是否需要经济的操作以及系统是处于冷却还是制热模式来控制空调节能器膨胀装置或热泵节能器膨胀装置的打开。 因此，使用一对热交换器，其中一个选择用于节能器操作，取决于系统是处于冷却还是加热模式。

公开(公告)号：US06996998B2

公开(公告)日：2006-02-14

申请号：US10742038

申请日：2003-12-19

Applicant: Alexander Lifson ,  Michael F. Taras ,  Thomas J. Dobmeier

Inventor： Alexander Lifson ,  Michael F. Taras ,  Thomas J. Dobmeier

IPC: F25B45/00 ,  F25B41/00

CPC classification number: F25B45/00 ,  F25B49/005 ,  F25B2345/001 ,  F25B2345/002 ,  F25B2500/24 ,  F25D2400/32

Abstract: An air conditioning or refrigeration system includes an attached refrigerant receptacle associated with the system. During shipment or storage, the pressure within the system may exceed a selected threshold for the low pressure side. Under such circumstances, a pressure relief device automatically allows refrigerant to flow from the system into the attached receptacle, which brings the pressure within the system back to an acceptable level for the low pressure side. Various optional shutoff devices are disclosed that can be incorporated into the design to simplify receptacle removal or recycling.

Abstract translation: 空调或制冷系统包括与系统相关联的附接的制冷剂容器。 在装运或储存期间，系统内的压力可能超过低压侧的选定阀值。 在这种情况下，压力释放装置自动允许制冷剂从系统流入附接的容器，这将使系统内的压力恢复到低压侧的可接受的水平。 公开了可以并入设计中的各种可选的关闭装置，以简化容器移除或再循环。

公开(公告)号：US06990826B1

公开(公告)日：2006-01-31

申请号：US11098845

申请日：2005-04-05

Applicant: Alexander Lifson ,  Michael F. Taras

Inventor： Alexander Lifson ,  Michael F. Taras

IPC: F25B13/00

CPC classification number: F25B13/00 ,  F25B2600/2513 ,  F25B2700/21151

Abstract: A heat pump is provided with a single expansion device a pair of four-way reversing valves. One of the reversing valves routes the refrigerant from the compressor to either an outdoor heat exchanger or indoor heat exchanger, as well as routes the refrigerant back to the compressor. The second four-way reversing valve receives refrigerant from one of the heat exchangers and properly routes it through a common expansion device in a single direction. The two four-way reversing valves are controlled dependent on whether the heat pump is operating in a cooling or heating mode. A single expansion device sensor is positioned on a suction line, which receives refrigerant on its way back to the compressor from the first four-way reversing valve. The present invention thus eliminates the prior art requirement of additional components, enhances control and reduces system cost.

Abstract translation: 热泵设有一个单向膨胀装置，一对四通换向阀。 一个换向阀将制冷剂从压缩机传递到室外热交换器或室内热交换器，并将制冷剂回送到压缩机。 第二四通换向阀从一个热交换器接收制冷剂，并通过公共的膨胀装置在单一方向上适当地将其输送。 两个四通换向阀根据热泵是以冷却还是加热模式运行来控制。 单个膨胀装置传感器位于吸入管路上，该吸入管路在从第一四通换向阀返回压缩机的途中接收制冷剂。 因此，本发明消除了附加部件的现有技术要求，增强了控制并降低了系统成本。

公开(公告)号：US20060010907A1

公开(公告)日：2006-01-19

申请号：US10891938

申请日：2004-07-15

Applicant: Michael Taras ,  Alexander Lifson

Inventor： Michael Taras ,  Alexander Lifson

IPC: F25B29/00 ,  F25B1/10 ,  F25B41/00

CPC classification number: F24F3/153 ,  F25B41/04 ,  F25B2400/075 ,  F25B2400/13

Abstract: A refrigerant system incorporates at least two compressors that act in tandem to provide variable control over the refrigerant system performance. The tandem compressors can be of conventional or economized type and are configured for maximum performance utilization. Further, a reheat circuit can be incorporated into the refrigerant system at several different locations. The reheat cycle provides additional control over sensible and latent capacity of the refrigerant system, and is particularly advantageous when utilized in combination with the tandem compressors. As a result, multiple steps of unloading can be implemented in all operation regimes, the external load demands are satisfied with much greater precision, eliminating undesirable variations in temperature and humidity, system efficiency and reliability are augmented and equipment life-cycle cost is reduced.

Abstract translation: 制冷剂系统包括至少两个压缩机，其串联起来以提供对制冷剂系统性能的可变控制。 串联压缩机可以是常规的或经济的类型，并且被配置为最大化性能利用。 此外，可以在几个不同的位置将再热回路并入制冷剂系统。 再热循环提供对制冷剂系统的敏感和潜在能力的额外控制，并且当与串联压缩机组合使用时是特别有利的。 因此，可以在所有操作方案中实现多个卸载步骤，以更高的精度满足外部负载需求，消除不需要的温湿度变化，增加系统效率和可靠性，降低设备生命周期成本。

公开(公告)号：US20060010899A1

公开(公告)日：2006-01-19

申请号：US10891391

申请日：2004-07-14

Applicant: Alexander Lifson ,  Michael Taras ,  Thomas Dobmeier

Inventor： Alexander Lifson ,  Michael Taras ,  Thomas Dobmeier

IPC: F25B13/00 ,  F25B43/00

CPC classification number: F25B13/00 ,  F25B1/10 ,  F25B2313/02742 ,  F25B2341/0662 ,  F25B2400/13 ,  F25B2400/23

Abstract: A heat pump design with an economizer flash tank provides an efficient way to operate the system in both heating and cooling modes. Various expansion device types can be employed with this design. The invention enhances system performance in both cooling and heating modes of operation, through utilization of the flash tank economizer cycle, in simplistic and cost effective manner, while sustaining expansion device and entire system functionality through an appropriate refrigerant rerouting around the compressor and the flash tank.

公开(公告)号：US20050235689A1

公开(公告)日：2005-10-27

申请号：US10829744

申请日：2004-04-22

Applicant: Alexander Lifson ,  Michael Taras ,  Thomas Dobmeier

Inventor： Alexander Lifson ,  Michael Taras ,  Thomas Dobmeier

IPC: F25B41/00 ,  F25B49/00 ,  F25B49/02

CPC classification number: F25B49/02 ,  F25B2400/075 ,  F25B2400/13 ,  F25B2600/0261 ,  F25B2600/2509

Abstract: A refrigerant cycle is provided with an economizer circuit. The amount of refrigerant passing through the economizer circuit can be gradually modulated by an expansion device whose position can be easily adjusted from fully open to fully closed or disengaged. In the past, economizer circuits have either been fully engaged or fully disengaged. Modulation of economizer flow allows for variable capacity operation. This improves unit operating efficiency, minimizes unit cycling and prevents compressor overloading at extreme of operating conditions. It also allows for head pressure and discharge temperature control.

Abstract translation: 制冷剂循环设有节能回路。 通过节能器回路的制冷剂量可以通过膨胀装置逐渐调节，膨胀装置的位置可以容易地从完全打开到完全关闭或分离。 在过去，节能器电路已经完全接合或完全脱离。 节能器流量调节允许可变容量运行。 这提高了单元运行效率，最大限度地减少了单元循环，并且在极端的运行条件下防止了压缩机过载。 它还允许头部压力和排气温度控制。

公开(公告)号：US06955058B2

公开(公告)日：2005-10-18

申请号：US10769161

申请日：2004-01-30

Applicant: Michael F. Taras ,  Alexander Lifson ,  Thomas J. Dobmeier

Inventor： Michael F. Taras ,  Alexander Lifson ,  Thomas J. Dobmeier

IPC: F25B41/04 ,  F25B7/00 ,  F25B41/00

CPC classification number: F25B41/04 ,  F25B2400/075 ,  F25B2400/13 ,  F25B2600/0261 ,  F25B2600/2509

Abstract: A refrigerant cycle is provided with tandem compressors. Only some of the multiple compressors are provided with an economized cycle, and an optional unloader valve for selectively returning flow from an economizer injection port back to suction. The present invention thus provides the economized operation capabilities and benefits for a refrigerant cycle having tandem compressors, without the complexity of providing separate economizer arrangement for each of the compressors.

Abstract translation: 制冷循环设有串联式压缩机。 只有一些多台压缩机具有经济的循环，以及可选的卸载阀，用于选择性地将节流器注入口的流量返回到吸力。 因此，本发明提供了具有串联压缩机的制冷剂循环的经济的操作能力和益处，而不需要为每个压缩机提供单独的节能装置。

公开(公告)号：US06925822B2

公开(公告)日：2005-08-09

申请号：US10732501

申请日：2003-12-10

Applicant: Alexander Lifson ,  Michael F. Taras ,  Thomas J. Dobmeier

Inventor： Alexander Lifson ,  Michael F. Taras ,  Thomas J. Dobmeier

IPC: F25B49/02 ,  F25B7/00 ,  F25B31/00

CPC classification number: F25B49/02 ,  F25B2400/06 ,  F25B2400/13 ,  F25B2500/15 ,  F25B2500/16 ,  F25B2600/0261

Abstract: Several control algorithms reduce the likelihood of insufficient oil return to the compressor. One algorithm is useful in a multi-circuit refrigerant system. A control reduces the cooling capacity of one of the circuits if the number of compressor start/stop cycles becomes excessive. By reducing the capacity, the control will reduce the number of compressor start/stop cycles for a circuit. In this manner, the oil continues to circulate through the circuit, and is more efficiently returned to the compressor. Another problem area associated with a poor oil return back to the compressor is when there is low mass flow rate of refrigerant circulating through the system. Various ways of increasing the refrigerant mass flow rate are disclosed to ensure proper oil return to the compressor. Also, if oil return problems are likely due to an undesirably high oil viscosity at the vapor portion of the evaporator or suction line, then steps are taken to reduce oil viscosity. Overall, the present invention discloses three distinct algorithms that may be utilized, either separately or in combination, to ensure better flow of oil back to the compressor. The invention enhances system and compressor reliability and performance as well as prevents the compressor damage.

Abstract translation: 几种控制算法可以减少油回流到压缩机的可能性。 一种算法在多回路制冷剂系统中是有用的。 如果压缩机启动/停止循环次数过多，则控制器可降低其中一个回路的冷却能力。 通过减小容量，控制将减少电路的压缩机启动/停止循环次数。 以这种方式，油继续循环通过电路，并且更有效地返回到压缩机。 另一个与油回油不良有关的问题是当制冷剂循环通过系统时质量流量低。 公开了增加制冷剂质量流量的各种方式以确保适当的油返回到压缩机。 而且，如果油回流问题可能是由于在蒸发器或吸入管线的蒸汽部分处的不希望的高油粘度，则采取步骤以降低油粘度。 总的来说，本发明公开了可以单独地或组合地使用的三种不同的算法，以确保更好的油回流到压缩机。 本发明提高了系统和压缩机的可靠性和性能，并且防止压缩机损坏。