公开(公告)号：US20060010899A1

公开(公告)日：2006-01-19

申请号：US10891391

申请日：2004-07-14

申请人： Alexander Lifson ,  Michael Taras ,  Thomas Dobmeier

发明人： Alexander Lifson ,  Michael Taras ,  Thomas Dobmeier

IPC分类号： F25B13/00 ,  F25B43/00

CPC分类号： F25B13/00 ,  F25B1/10 ,  F25B2313/02742 ,  F25B2341/0662 ,  F25B2400/13 ,  F25B2400/23

摘要： 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

申请人： Alexander Lifson ,  Michael Taras ,  Thomas Dobmeier

发明人： Alexander Lifson ,  Michael Taras ,  Thomas Dobmeier

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

CPC分类号： F25B49/02 ,  F25B2400/075 ,  F25B2400/13 ,  F25B2600/0261 ,  F25B2600/2509

摘要： 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.

摘要翻译： 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：US20050166617A1

公开(公告)日：2005-08-04

申请号：US10769161

申请日：2004-01-30

申请人： Michael Taras ,  Alexander Lifson ,  Thomas Dobmeier

发明人： Michael Taras ,  Alexander Lifson ,  Thomas Dobmeier

IPC分类号： F25B41/04 ,  F25B7/00

CPC分类号： F25B41/04 ,  F25B2400/075 ,  F25B2400/13 ,  F25B2600/0261 ,  F25B2600/2509

摘要： 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.

摘要翻译： 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抽吸。 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器装置的复杂性。

公开(公告)号：US20050086970A1

公开(公告)日：2005-04-28

申请号：US10693593

申请日：2003-10-24

申请人： Alexander Lifson ,  Thomas Dobmeier ,  Michael Taras

发明人： Alexander Lifson ,  Thomas Dobmeier ,  Michael Taras

IPC分类号： F25B13/00 ,  F25B41/04 ,  F25B41/00 ,  F25B5/00

CPC分类号： F25B41/046 ,  F25B13/00 ,  F25B41/062 ,  F25B2313/02742 ,  F25B2400/13 ,  F25B2500/18

摘要： A refrigerant system is operable in either 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 four-way valve assembly selectively communicates refrigerant from either an indoor heat exchanger or outdoor heat exchanger to an economizer heat exchanger. The valve assembly further includes a restriction for restricting a refrigerant flow downstream of the economizer heat exchanger. The valve assembly provides two distinct restrictions such that a different size restriction is presented to the flow in cooling and heating modes. In this way, a single valve assembly can provide both the required routing for the alternative heating and cooling modes, and at the same time allow for distinct restriction sizes for the two modes without the necessity of separate expansion devices, also improving overall system cost and reliability.

摘要翻译： 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。 四通阀组件选择性地将制冷剂从室内热交换器或室外热交换器传送到节能器热交换器。 阀组件还包括用于限制节能热交换器下游的制冷剂流的限制。 阀组件提供了两个不同的限制，使得在冷却和加热模式下对流动提供了不同的尺寸限制。 以这种方式，单个阀组件可以为替代的加热和冷却模式提供所需的路线，并且同时允许两种模式的不同的限制尺寸，而不需要单独的膨胀装置，也提高整体系统成本， 可靠性。

公开(公告)号：US20050160761A1

公开(公告)日：2005-07-28

申请号：US10762708

申请日：2004-01-22

申请人： Michael Taras ,  Alexander Lifson ,  Thomas Dobmeier

发明人： Michael Taras ,  Alexander Lifson ,  Thomas Dobmeier

IPC分类号： F25B1/10 ,  F25B41/04 ,  F25B41/00

CPC分类号： F25B41/04 ,  F25B1/10 ,  F25B2400/075 ,  F25B2400/13 ,  F25B2600/0261

摘要： A refrigerant cycle includes economized tandem compressors. The refrigerant cycle is also provided with a common economizer circuit for all tandem compressors. Common manifolds communicate discharge, suction and economizer return flows within the refrigerant cycle to each of the tandem compressors. Also, an optional unloader function is provided for each of the compressors. Various arrangements allow enhanced operation control, improved system reliability and reduced equipment life-cycle cost.

摘要翻译： 制冷剂循环包括经济的串联式压缩机。 制冷剂循环还配备有用于所有串联压缩机的通用节能器回路。 通用歧管将制冷剂循环内的排放，抽吸和节约器返回流量传递给每个串联式压缩机。 此外，为每个压缩机提供可选的卸载器功能。 各种布置允许增强的操作控制，提高的系统可靠性和减少设备的生命周期成本。

公开(公告)号：US20050126193A1

公开(公告)日：2005-06-16

申请号：US10732501

申请日：2003-12-10

申请人： Alexander Lifson ,  Michael Taras ,  Thomas Dobmeier

发明人： Alexander Lifson ,  Michael Taras ,  Thomas Dobmeier

IPC分类号： F25B49/02 ,  F25B7/00

CPC分类号： F25B49/02 ,  F25B2400/06 ,  F25B2400/13 ,  F25B2500/15 ,  F25B2500/16 ,  F25B2600/0261

摘要： 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.

公开(公告)号：US20050086969A1

公开(公告)日：2005-04-28

申请号：US10692511

申请日：2003-10-24

申请人： Alexander Lifson ,  Michael Taras ,  Thomas Dobmeier

发明人： Alexander Lifson ,  Michael Taras ,  Thomas Dobmeier

IPC分类号： F25B13/00 ,  F25B41/00 ,  F25B41/04

CPC分类号： F25B13/00 ,  F25B41/003 ,  F25B41/04 ,  F25B2400/13

摘要： 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.

摘要翻译： 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：US20070283712A1

公开(公告)日：2007-12-13

申请号：US11841009

申请日：2007-08-20

申请人： Michael Taras ,  Alexander Lifson

发明人： Michael Taras ,  Alexander Lifson

IPC分类号： F25B13/00

CPC分类号： F24F3/153 ,  F25B1/10 ,  F25B13/00 ,  F25B2313/0212 ,  F25B2313/02731 ,  F25B2313/02741 ,  F25B2313/02742 ,  F25B2400/04 ,  F25B2400/075 ,  F25B2400/13 ,  F25B2400/23 ,  F25B2600/2507

摘要： A heat pump system operates in heating and cooling modes. The heat pump is provided with both a reheat function and economizer circuit. The economizer circuit provides augmented performance to the heat pump, while the reheat coil allows enhanced control over temperature and humidity of the air supplied to the conditioned space. A bypass line around an outdoor heat exchanger is also provided to achieve additional flexibility of control for a sensible heat ratio. Selective operation of the abovementioned components and subsystems allows precise control over system operation parameters and hence satisfaction of a wide spectrum of sensible and latent load demands and improved reliability.

摘要翻译： 热泵系统在加热和冷却模式下运行。 热泵配有再热功能和节能器电路。 节能器电路为热泵提供增强的性能，而再热线圈允许增强对提供给调节空间的空气的温度和湿度的控制。 还提供了围绕室外热交换器的旁路管线，以实现对显热比的控制的额外的灵活性。 上述组件和子系统的选择性操作允许精确控制系统操作参数，从而满足广泛的敏感和潜在负载需求以及提高的可靠性。

公开(公告)号：US20060225444A1

公开(公告)日：2006-10-12

申请号：US11102007

申请日：2005-04-08

申请人： Michael Taras ,  Alexander Lifson

发明人： Michael Taras ,  Alexander Lifson

IPC分类号： F25D17/06 ,  F25B29/00 ,  F25B41/00 ,  F25B49/00 ,  F25B1/00

CPC分类号： F24F3/153 ,  F25B1/10 ,  F25B6/00 ,  F25B2400/0403 ,  F25B2400/13 ,  F25B2600/021 ,  F25B2600/111 ,  F25B2600/2507 ,  Y02B30/741 ,  Y02B30/743

摘要： Refrigerant systems are provided with selectively operable components that allow variation in the capacity provided by the refrigerant system to achieve desired temperature and humidity levels. A reheat circuit is provided and an economizer circuit may also be added to the system. Typically, the reheat and economizer functions each provide a step change in the humidity control. A compressor having a variable speed drive is utilized. By providing the reheat/economizer functions along with the variable speed compressor, continuously adjustable humidity control is achieved

摘要翻译： 制冷剂系统设置有选择性地可操作的部件，其允许由制冷剂系统提供的容量的变化以实现期望的温度和湿度水平。 提供再热电路，并且还可以向系统添加节能器电路。 通常，再热和节能器功能各自提供湿度控制中的阶跃变化。 使用具有变速驱动器的压缩机。 通过提供再加热/节能器功能以及变速压缩机，实现了连续可调的湿度控制

公开(公告)号：US20060123840A1

公开(公告)日：2006-06-15

申请号：US11010039

申请日：2004-12-10

申请人： Alexander Lifson ,  Michael Taras ,  Howard Fraser ,  Russell Lewis ,  Andre Stumpf

发明人： Alexander Lifson ,  Michael Taras ,  Howard Fraser ,  Russell Lewis ,  Andre Stumpf

IPC分类号： F25B43/02 ,  F25B1/00 ,  F25B41/00

CPC分类号： F25B41/04 ,  F25B1/10 ,  F25B40/00 ,  F25B41/043 ,  F25B2400/04 ,  F25B2400/13 ,  F25B2600/0261 ,  F25B2600/2509

摘要： A refrigerant system is provided where the functions of an economizer heat exchanger and liquid-suction heat exchanger are combined. The two configurations are disclosed with a single common heat exchanger construction. In a first configuration, a series of valves selectively routes only one of two possible refrigerant flows through a common heat exchanger such that a control can selectively activate either an economizer heat exchanger circuit or a liquid-suction heat exchanger function. In a second configuration, both refrigerant flows are passed to the common heat exchanger through separate fluid lines and are selectively activated by the control. Variations of the second configuration are also disclosed.

摘要翻译： 提供了一种制冷剂系统，其中组合有节能热交换器和吸液热交换器的功能。 这两种结构公开了单一的共同热交换器结构。 在第一构造中，一系列阀选择性地仅使两个可能的制冷剂流中的一个通过公共热交换器，使得控制器可以选择性地启动节能器热交换器回路或吸液热交换器功能。 在第二构造中，两个制冷剂流通过单独的流体管路传递到公共热交换器，并且通过控制选择性地启动。 还公开了第二配置的变化。