公开(公告)号：US20100011788A1

公开(公告)日：2010-01-21

申请号：US12440786

申请日：2006-09-12

Applicant: Alexander Lifson ,  Michael F. Taras

Inventor： Alexander Lifson ,  Michael F. Taras

IPC: F25B1/00 ,  F25B49/02 ,  F25B39/04 ,  F25D17/06

CPC classification number: F25B31/002 ,  F25B49/02 ,  F25B2400/01 ,  F25B2500/26 ,  F25B2600/01 ,  F25B2600/0251 ,  F25B2600/111 ,  F25B2600/112 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/2104 ,  F25B2700/2106 ,  Y02B30/743

Abstract: A vapor compression system includes a timer and a controller for periodically starting up the system during the off-season periods (primarily non-cooling months) in which the system would normally be shut down. This provides periodic lubrication to the compressor components and prevents severe flooded starts due to excessive accumulation of refrigerant in the compressor (compressor oil sump in particular) and other system components. Provision is also made to sequentially turn on and off system components such as the compressor, the evaporator fan and the condenser fan to enhance the system operation. The timing sequences are provided for the time intervals between the startups, as well as the off-season operation cycle times.

Abstract translation: 蒸气压缩系统包括计时器和控制器，用于在系统通常被关闭的淡季期间（主要是非冷却月份）中周期性启动系统。 这为压缩机部件提供定期润滑，并防止由于压缩机（特别是压缩机油槽）和其他系统组件中的过度积聚而导致严重的淹没启动。 还规定依次打开和关闭系统组件，如压缩机，蒸发器风扇和冷凝器风扇，以增强系统运行。 为启动之间的时间间隔以及淡季操作周期时间提供时序。

公开(公告)号：US20100011787A1

公开(公告)日：2010-01-21

申请号：US12527719

申请日：2007-03-09

Applicant: Alexander Lifson ,  Michael F. Taras

Inventor： Alexander Lifson ,  Michael F. Taras

IPC: F25B45/00 ,  F25B1/00 ,  F25B43/00 ,  F25B41/04 ,  F25D21/06

CPC classification number: F25B9/008 ,  F25B49/005 ,  F25B2309/06 ,  F25B2600/2501 ,  F25B2700/197 ,  F25B2700/2117 ,  F25D21/06

Abstract: A refrigerant system may utilize CO2 as a refrigerant. Should the sensed operating conditions indicate that the refrigerant might be approaching a condition at which the refrigerant could solidify, corrective actions are taken to prevent refrigerant transformation to a solid thermodynamic state. In one embodiment, hot gas from a compressor discharge is bypassed to a location upstream of the evaporator. In another embodiment, the high-side pressure of a refrigerant system is adjusted. In yet another embodiment, an additional charge of refrigerant is delivered on demand into the refrigerant system. In still another embodiment, a defrost cycle is initiated on demand. These embodiments prevent the refrigerant from approaching the conditions at which it may solidify.

Abstract translation: 制冷剂系统可以利用CO 2作为制冷剂。 如果感测到的操作条件指示制冷剂可能接近制冷剂可以固化的状态，则采取纠正措施来防止制冷剂转化为固体热力学状态。 在一个实施例中，来自压缩机排放口的热气旁路到蒸发器上游的位置。 在另一个实施例中，调节制冷剂系统的高侧压力。 在另一个实施例中，额外的制冷剂装料根据需要被输送到制冷剂系统中。 在另一个实施例中，根据需要启动除霜循环。 这些实施例防止制冷剂接近可凝固的条件。

公开(公告)号：US20090288432A1

公开(公告)日：2009-11-26

申请号：US12307631

申请日：2006-08-08

Applicant: Alexander Lifson ,  Michael F. Taras ,  Mark A. Lifson ,  George M. Taras

Inventor： Alexander Lifson ,  Michael F. Taras ,  Mark A. Lifson ,  George M. Taras

IPC: F25B1/00

CPC classification number: F25B41/043 ,  F25B5/02 ,  F25B6/02 ,  F25B49/022 ,  F25B2400/075 ,  F25B2400/13 ,  F25B2600/0251 ,  F25B2600/2521

Abstract: A refrigerant system is provided with tandem compressors. A tandem compressor arrangement includes at least two compressors operating in parallel and having at least one common manifold. A control may operate the compressors either simultaneously, or in some predetermined sequence to provide control over refrigerant system capacity. At least one of the tandem compressors is provided with a pulse width modulation control on a suction line. In this manner, the amount of refrigerant, compressed by the compressor, can be precisely controlled to exactly meet thermal load demands in the conditioned space.

Abstract translation: 制冷剂系统配有串联式压缩机。 串联压缩机装置包括至少两个并联运行并具有至少一个公共歧管的压缩机。 控制器可以同时操作压缩机，也可以以一定的顺序操作以提供对制冷剂系统容量的控制。 串联压缩机中的至少一个在吸入管线上设置脉冲宽度调制控制。 以这种方式，可以精确地控制由压缩机压缩的制冷剂的量以精确地满足调节空间中的热负荷要求。

公开(公告)号：US20090235678A1

公开(公告)日：2009-09-24

申请号：US12307756

申请日：2006-08-01

Applicant: Michael F. Taras ,  Alexander Lifson

Inventor： Michael F. Taras ,  Alexander Lifson

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

CPC classification number: F25B49/022 ,  F24F3/153 ,  F25B2400/075 ,  F25B2400/13 ,  F25B2500/06 ,  F25B2600/0251 ,  F25B2700/15 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/21151 ,  F25B2700/21152

Abstract: A refrigerant system control operates tandem compressors. If one of the monitored system conditions does not change as each of the tandem compressors or associated components is brought on line, then a determination is made that the respective component is malfunctioning. A refrigerant system can also be additionally equipped with other functions and components, such as variable speed drive, economizer circuit, unloader bypass, and reheat circuit. In case of a reheat circuit, the system can consist of single or multiple compressors. The control algorithm can also be updated such that that particular malfunctioning component is eliminated from the operational sequence.

Abstract translation: 制冷剂系统控制器操作串联式压缩机。 如果串联式压缩机或相关组件中的每一个被监视的系统条件中的一个没有改变，则确定各个组件故障。 制冷剂系统还可以配备其他功能和部件，例如变速驱动，节能器电路，卸载器旁路和再热回路。 在再加热电路的情况下，系统可以由单个或多个压缩机组成。 还可以更新控制算法，使得从操作序列中消除特定的故障组件。

公开(公告)号：US20090235673A1

公开(公告)日：2009-09-24

申请号：US12375236

申请日：2006-10-31

Applicant: Alexander Lifson ,  Michael F. Taras

Inventor： Alexander Lifson ,  Michael F. Taras

IPC: F25D3/00 ,  F25B1/00 ,  G01K13/00

CPC classification number: F25B49/005 ,  F25B9/008 ,  F25B2309/061 ,  F25B2600/01 ,  F25B2700/1931 ,  F25B2700/2106 ,  F25B2700/21152

Abstract: A refrigerant system utilizes environmentally friendly natural refrigerant such as carbon dioxide. A pressure relief mechanism such as pressure relief valve is incorporated into the refrigerant system design to allow for at least some amount of refrigerant to be released to atmosphere to provide safe operation or comply with agency regulations if pressure within the refrigerant system exceeds a certain limit. This release can occur during refrigerant system storage, transportation or operation. A detection device such as an electrical circuit is included into the refrigerant system design to provide an indication that pressure relief valve has opened, such that the determination can be made by a refrigerant system control or an operator whether the refrigerant system needs to be recharged and whether it can continue its normal operation, narrow its operational envelope or shut down until the refrigerant charge can be restored.

Abstract translation: 制冷剂系统使用环境友好的天然制冷剂如二氧化碳。 在制冷剂系统设计中并入压力释放机构，例如减压阀，以允许至少一些量的制冷剂被释放到大气中以提供安全的操作，或者如果制冷剂系统内的压力超过一定限度，则符合机构规定。 这种释放可能在制冷剂系统的储存，运输或运行期间发生。 诸如电路的检测装置被包括在制冷剂系统设计中以提供泄压阀已经打开的指示，使得可以通过制冷剂系统控制或操作者来确定制冷剂系统是否需要再充电， 是否可以继续正常运行，缩小运行范围或关闭，直到制冷剂充注恢复。

公开(公告)号：US20090229282A1

公开(公告)日：2009-09-17

申请号：US11909086

申请日：2005-05-24

Applicant: Michael F. Taras ,  Alexander Lifson

Inventor： Michael F. Taras ,  Alexander Lifson

IPC: F25B5/00 ,  F25B1/00 ,  F28F9/02

CPC classification number: F25B41/00 ,  F25B39/02 ,  F25B39/028 ,  F25B2400/13 ,  F25C2500/02

Abstract: A parallel-flow evaporator has a liquid trap for regulating velocity of refrigerant delivered to an evaporator from an expansion device. In its simplest configuration, the liquid trap is a u-shaped pipe positioned vertically and connected to an inlet manifold of the evaporator. By providing a liquid trap, a small amount of liquid refrigerant separates from the vapor phase at certain conditions. This separated liquid will tend to collect in the trap, and reduce a flow cross-sectional area of the line leading to the inlet manifold of the evaporator. As this cross-sectional area decreases, the velocity of the refrigerant passing through the line will increase. In this sense, as a small amount of liquid phase separates out, it will ensure that the velocity of the remaining refrigerant will increase such that further separation will be significantly reduced or entirely avoided. As a result, homogeneous refrigerant flow is provided to the evaporator, resulting in its performance enhancement and system reliability improvement.

Abstract translation: 并联蒸发器具有液体捕集器，用于调节从膨胀装置输送到蒸发器的制冷剂的速度。 在其最简单的构造中，液体阱是垂直定位并连接到蒸发器的入口歧管的u形管。 通过提供液体捕集器，少量液体制冷剂在某些条件下与气相分离。 这种分离的液体将倾向于在捕集器中收集，并且减少通向蒸发器入口歧管的管线的流动横截面积。 当该横截面积减小时，通过该线路的制冷剂的速度将增加。 在这个意义上，当少量的液相分离出来时，它将确保剩余制冷剂的速度将增加，使得进一步的分离将被显着减少或完全避免。 结果，向蒸发器提供均匀的制冷剂流，从而提高其性能并提高系统可靠性。

公开(公告)号：US20090223233A1

公开(公告)日：2009-09-10

申请号：US12161073

申请日：2006-05-01

Applicant: Michael F. Taras ,  Alexander Lifson

Inventor： Michael F. Taras ,  Alexander Lifson

IPC: F25D17/06 ,  F25B1/00 ,  F25D17/04

CPC classification number: F25D21/125 ,  F24F3/153 ,  F24F11/43 ,  F25B47/022 ,  F25B2500/26 ,  F25B2500/27 ,  F25B2600/11 ,  F25B2700/02 ,  F25B2700/2117 ,  F25D2600/02

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20090151369A1

公开(公告)日：2009-06-18

申请号：US12296291

申请日：2006-04-25

Applicant: Alexander Lifson ,  Michael F. Taras

Inventor： Alexander Lifson ,  Michael F. Taras

IPC: F25B1/00 ,  G05D23/00

CPC classification number: F25B49/005 ,  F25B2500/06 ,  F25B2600/111 ,  F25B2600/112 ,  G06F11/30 ,  Y02B30/743

Abstract: A diagnostic method for testing a fan or pump assembly in a refrigerant system includes steps of operating a controller to periodically shut down, or reduce fan or pump speed for a short period of time, while continuing to operate the refrigerant system. Changes in an operating condition such as pressure, temperature, electric current or operating speed are monitored. If expected changes do not occur, a determination can be made that a fan or pump assembly is malfunctioning.

Abstract translation: 用于测试制冷剂系统中的风扇或泵组件的诊断方法包括在继续操作制冷剂系统的同时操作控制器以周期性地关闭或者在短时间内减小风扇或泵的速度的步骤。 监视压力，温度，电流或运行速度等运行状态的变化。 如果不发生预期的变化，则可以确定风扇或泵组件发生故障。

公开(公告)号：US20090084119A1

公开(公告)日：2009-04-02

申请号：US11989656

申请日：2005-08-03

Applicant: Alexander Lifson ,  Michael F. Taras

Inventor： Alexander Lifson ,  Michael F. Taras

IPC: F25B49/00

CPC classification number: F25B49/005 ,  F25B2500/06 ,  F25B2600/01 ,  F25B2700/195 ,  F25B2700/197

Abstract: There is provided a refrigerant system. First and second transducers are positioned within the refrigerant system to measure respective operational characteristics. There is a timer that determines that a shutdown has occurred for a specified period of time; and a comparator that compares an output of the first transducer to an output of the second transducer after that specified time and determines whether the outputs of the first and second transducers are within a tolerance band of each other. If the readings are not within tolerance band, then the transducer failure is detected and a warning/alarm requiring operator attention is issued.

Abstract translation: 提供制冷剂系统。 第一和第二换能器定位在制冷剂系统内以测量相应的操作特性。 有一个定时器确定在一段指定的时间内发生关机; 以及比较器，其将所述第一换能器的输出与所述第二换能器的输出进行比较，并且确定所述第一和第二换能器的输出是否在彼此的容限范围内。 如果读数不在公差范围内，则检测到传感器故障，并发出需要操作员注意的警告/报警。

公开(公告)号：US07469555B2

公开(公告)日：2008-12-30

申请号：US10978975

申请日：2004-11-01

Applicant: Michael F. Taras ,  Alexander Lifson

Inventor： Michael F. Taras ,  Alexander Lifson

IPC: F25B41/00

CPC classification number: F25B1/10 ,  F24F3/153 ,  F25B6/02 ,  F25B41/04 ,  F25B2400/075 ,  F25B2600/2507

Abstract: A tandem compressor system is utilized that receives refrigerant from a common suction manifold, and from a common evaporator. From the compressors, the refrigerant passes to a plurality of condensers, with each of the condensers being associated with a separate zone for heat rejection, preferably at different temperature levels. Each of the condensers is associated with at least one of the plurality of compressors. A reheat coil is associated with the evaporator to improve comfort level in the environment to be conditioned. Multiple reheat circuits associated with separate condensers are employed to provide various stages of reheat or to condition separate environments. By utilizing the common evaporator, a plurality of condensers, and the reheat coils, the ability to independently control temperature, humidity and amount of heat rejection to a number of zones is achieved without the requirement of having dedicated circuits with multiple additional components. Thus, the overall system cost and complexity is significantly reduced and its operational and control flexibility is improved.

Abstract translation: 使用串联压缩机系统，其从公共抽吸歧管和公共蒸发器接收制冷剂。 从压缩机，制冷剂传递到多个冷凝器，其中每个冷凝器与用于排热的单独的区域相关联，优选在不同的温度水平。 每个冷凝器与多个压缩机中的至少一个压缩机相关联。 再加热线圈与蒸发器相关联，以改善待调节环境中的舒适度。 使用与单独的电容器相关联的多个再热电路来提供各种再热阶段或条件分开的环境。 通过利用公共蒸发器，多个冷凝器和再热线圈，可以实现独立控制多个区域的温度，湿度和排热量的能力，而不需要具有多个附加部件的专用电路。 因此，整体系统成本和复杂性大大降低，其运行和控制灵活性得到提高。