公开(公告)号：US07338264B2

公开(公告)日：2008-03-04

申请号：US11361759

申请日：2006-02-24

Applicant: Alexander Lifson

Inventor： Alexander Lifson

IPC: F01C1/02

CPC classification number: F04C23/008 ,  F04C18/0215 ,  F04C18/0269

Abstract: A scroll compressor is provided with spaced grooves in a base of one of the two scroll members. A recess is formed in a wrap tip of the other scroll member. The recess in the wrap tip bridges a space between the grooves of the other scroll member. This bridging equalizes pressure between two parallel intermediate compression chambers. Pressure equalization between the chambers improves compressor efficiency.

Abstract translation: 涡旋压缩机在两个涡旋构件中的一个的基部上设置有间隔开的凹槽。 在另一个涡旋构件的包覆尖端中形成凹部。 包覆尖端中的凹部桥接另一个涡旋件的凹槽之间的空间。 这种桥接使两个平行的中间压缩室之间的压力相等。 室之间的压力均衡提高了压缩机的效率。

公开(公告)号：US07300257B2

公开(公告)日：2007-11-27

申请号：US11017304

申请日：2004-12-20

Applicant: Alexander Lifson ,  Michael F. Taras

Inventor： Alexander Lifson ,  Michael F. Taras

IPC: F04B49/06

CPC classification number: F04C28/04 ,  F04C18/0215 ,  F04C28/06 ,  F04C28/08 ,  F04C28/28 ,  F04C2270/72

Abstract: The shutdown of a compressor (10) installed in a refrigerant circuit (2) in air conditioning or refrigeration system is controlled so as to prevent unpowered reverse rotation of the compressor. Prior to terminating electric power to the compressor drive motor (24), the pressure within the system is relieved and substantially equalized across the compressor, thereby eliminating the possibility of unpowered reverse rotation of the compressor at shutdown. Pressure relief and equalization may be achieved by reducing the operating speed of the compressor to a low forward speed for a period of time prior to deenergizing the compressor drive motor. Pressure equalization may also be achieved by driving the compressor in reverse rotation prior to deenergizing the drive motor.

Abstract translation: 控制安装在空调或制冷系统中的制冷剂回路（2）中的压缩机（10）的关闭，以防止压缩机的无动力反向旋转。 在将压缩机驱动马达（24）的电力终止之前，系统内的压力在整个压缩机上被释放并基本相等，从而消除了关闭时压缩机无动力反转的可能性。 通过在压缩机驱动马达断电之前的一段时间内将压缩机的运行速度降低到较低的前进速度，可以实现泄压和均衡。 还可以通过在驱动马达断电之前将压缩机反向旋转来实现压力均衡。

公开(公告)号：US07257955B2

公开(公告)日：2007-08-21

申请号：US10936034

申请日：2004-09-08

Applicant: Alexander Lifson ,  Michael F. Taras

Inventor： Alexander Lifson ,  Michael F. Taras

IPC: F25B13/00

CPC classification number: F25B41/04 ,  F25B13/00 ,  F25B41/046 ,  F25B2313/02741 ,  F25B2313/02742 ,  F25B2400/13 ,  F25B2500/02

Abstract: A heat pump is provided with a discharge valve on a discharge line. The discharge valve can be positioned to modulate or pulse refrigerant flow from the discharge line heading toward an indoor heat exchanger, when in a heating mode. By providing this restriction, the pressure and the temperature of the refrigerant increases. This increased temperature provides additional heating capacity as well as increases the temperature of the delivered indoor air, minimizing “cold blow” and making the end user more comfortable. The use of discharge valve can also minimize or entirely eliminate the ON/OFF unit cycling, as the amount of heat delivered can be precisely controlled by pulsing or modulating the valve, thus reducing unit cycling losses, improving user comfort and enhancing reliability.

Abstract translation: 热泵在排气管上设有排放阀。 当处于加热模式时，排放阀可以定位成调制或脉冲从排出管线朝向室内热交换器的制冷剂流。 通过提供这种限制，制冷剂的压力和温度增加。 这种增加的温度提供额外的加热能力，并且增加输送的室内空气的温度，最小化“冷吹”并使终端用户更舒适。 排出阀的使用也可以最小化或完全消除ON / OFF单元循环，因为可以通过脉冲或调节阀门来精确地控制输送的热量，从而减少单元循环损失，提高用户舒适度和提高可靠性。

公开(公告)号：US07234311B2

公开(公告)日：2007-06-26

申请号：US11098363

申请日：2005-04-04

Applicant: Alexander Lifson ,  Michael F. Taras

Inventor： Alexander Lifson ,  Michael F. Taras

IPC: F25B1/00

CPC classification number: F25B13/00 ,  F25B1/04 ,  F25B1/047 ,  F25B2313/0292 ,  F25B2500/27

Abstract: A heat pump is provided with a method and control for eliminating compressor un-powered reverse rotation at shutdown. In particular, the position of the four-way reversing valve is changed and the heat pump is moved to the opposite mode of operation as compared to the one it had been operated before shutdown. The compressed refrigerant, that might otherwise re-expand through the compressor and cause the compressor to run in reverse, is now communicated to the suction line of the compressor, while the discharge port of the compressor communicates with a refrigerant at suction pressure. Thus the unpowered reverse rotation of the compressor is no longer possible.

Abstract translation: 热泵提供了一种方法和控制，用于在关闭时消除压缩机未供电的反向旋转。 特别地，四相换向阀的位置改变，并且热泵在停机之前与其操作相比移动到相反的操作模式。 然后压缩的制冷剂，否则可能通过压缩机重新膨胀并导致压缩机反向运行，则压缩机的排出口与吸入压力下的制冷剂连通。 因此，压缩机的无动力反向旋转不再可能。

公开(公告)号：US20070033965A1

公开(公告)日：2007-02-15

申请号：US11199980

申请日：2005-08-09

Applicant: Alexander Lifson ,  Michael Taras

Inventor： Alexander Lifson ,  Michael Taras

IPC: F25B1/00 ,  F25B41/06

CPC classification number: F25B41/043 ,  F25B2400/13 ,  F25B2500/18

Abstract: A fixed restriction is placed in a suction line leading to a compressor. The size of the restriction is selected to achieve a desired capacity reduction (correction) for the refrigerant system compressor. By selectively restricting the flow of refrigerant through the suction line, the capacity delivered by the compressor will be reduced. This allows a designer of a refrigerant system to utilize an available compressor of a specific size (displacement) to satisfy the desired system operating conditions and performance characteristics as well as application requirements. In embodiments, the refrigerant system may be provided with an economizer and unloader functions. The restriction may be placed in the compressor suction port, or in the suction line leading to the compressor. Further, a pair of parallel flow passages may communicate an evaporator to the compressor, with the restriction being placed in one and a solenoid valve placed in the other.

Abstract translation: 在通向压缩机的吸入管路中放置固定的限制。 选择限制的尺寸以实现制冷剂系统压缩机的期望的容量减小（校正）。 通过选择性地限制制冷剂通过吸入管线的流动，由压缩机输送的能力将被降低。 这允许制冷剂系统的设计者利用特定尺寸（位移）的可用压缩机来满足期望的系统操作条件和性能特征以及应用要求。 在实施例中，制冷剂系统可以设置有节能器和卸载器功能。 该限制可以被放置在压缩机吸入口或通往压缩机的吸入管路中。 此外，一对平行的流动通道可以将蒸发器连接到压缩机，其中限制被放置在一个中并且将电磁阀放置在另一个中。

公开(公告)号：US07155920B2

公开(公告)日：2007-01-02

申请号：US10967862

申请日：2004-10-18

Applicant: Alexander Lifson ,  Michael F. Taras

Inventor： Alexander Lifson ,  Michael F. Taras

IPC: F25B7/00 ,  F25B41/00 ,  F25B49/00 ,  F25B1/10

CPC classification number: F25B6/00 ,  F25B2400/074 ,  F25B2400/075

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. By utilizing the common evaporator, yet a plurality of condensers, the ability to independently control temperature and amount of heat rejection to a number of zones is achieved without the requirement of having a dedicated circuit with multiple additional components. Thus, the overall system cost and complexity can be greatly reduced. In embodiments, one or more of the plurality of compressors can be provided by a compressor bank, having its own plurality of compressors.

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相关联。 通过利用公共蒸发器，还有多个冷凝器，实现了将多个区域的温度和排热量独立控制的能力，而不需要具有多个附加部件的专用电路。 因此，可以大大降低整体系统的成本和复杂性。 在实施例中，多个压缩机中的一个或多个可以由具有其自己的多个压缩机的压缩机组提供。

公开(公告)号：US20060266076A1

公开(公告)日：2006-11-30

申请号：US11140699

申请日：2005-05-31

Applicant: Alexander Lifson

Inventor： Alexander Lifson

IPC: F25B1/00 ,  F25B41/00 ,  F03C2/00

CPC classification number: F04C29/042 ,  F04C18/0253 ,  F04C18/0292 ,  F25B1/04 ,  F25B2400/13 ,  F25B2600/026

Abstract: A scroll compressor is provided with economizer injection ports, which extend through the wrap of one of the scroll members. Preferably the injection ports are formed through a so-called “hybrid” wrap, which has a varying thickness. The other scroll member is provided with grooves in its base plate. The injection of economizer fluid occurs only during a portion of the orbiting cycle when the injection port and corresponding grooves are aligned with each other. An indentation is formed into the wrap that includes the injection port. The indentation is spaced circumferentially from the injection port. The indentation communicates with the groove, such that refrigerant can pass from the injection port, into the groove, and through the indentation into a compression chamber. This increases the injection time allowing more fluid to be injected into the compression chamber, and provides the scroll compressor designer with greater freedom to achieve desired flow of economizer fluid into the compression chambers.

Abstract translation: 涡旋式压缩机设置有节能器注入口，其延伸穿过其中一个涡旋件的包裹物。 优选地，注入口通过所谓的“混合”包装形成，其具有变化的厚度。 另一个涡旋构件在其底板中设置有凹槽。 节气器流体的注入仅在注入口和对应的槽彼此对准时在轨道循环的一部分期间发生。 在包括注射口的包装中形成凹痕。 压痕从注射口周向隔开。 压痕与凹槽连通，使得制冷剂可以从注入口进入凹槽，并通过压痕进入压缩室。 这增加了喷射时间，从而允许更多的流体被注入到压缩室中，并且为涡旋压缩机设计者提供了更大的自由度，以实现期望的节约流体流入压缩室。

公开(公告)号：US20060263226A1

公开(公告)日：2006-11-23

申请号：US11131883

申请日：2005-05-18

Applicant: Alexander Lifson

Inventor： Alexander Lifson

IPC: F01C1/02 ,  F04C2/00 ,  F01C1/063 ,  F04C18/00

CPC classification number: F04C29/028 ,  F04C18/0253

Abstract: Oil retention recesses are formed on either or both orbiting and non-orbiting scroll elements. In one embodiment, the recesses are formed in a tip of a wrap of at least one of the scroll members. In another embodiment the recesses are formed on the base of at least one of the scroll elements. The recesses ensure that a sufficient quantity of oil is captured within the recesses to provide the lubrication into the interfacing surface of these elements. Having an additional supply of oil provided by the recesses is especially important after a compressor was shutdown for long periods, as lack of lubricant between the engaged scroll elements can lead to the damage of these compression elements upon the compressor start up. Other events occurring during system operation may also cause momentary loss of oil supply at the compressor, such as, for example, compressor flooding, when the liquid refrigerant entering the compressor can wash away the lubricant within the compressor pumping elements. The additional oil supply provided by the recesses is also important during intermittent interruption of oil delivery to the scroll compressor elements or when the amount of oil circulation through scroll compression elements is less than desirable.

Abstract translation: 保持凹槽形成在轨道和非轨道的涡旋元件之一或两者上。 在一个实施例中，凹部形成在至少一个涡旋构件的包裹物的尖端中。 在另一个实施例中，凹槽形成在至少一个涡旋元件的基部上。 这些凹槽确保在凹槽内捕获足够量的油以向这些元件的界面表面提供润滑。 在压缩机长时间关闭之后，由凹部提供的另外的油供应是特别重要的，因为在接合的涡旋元件之间缺少润滑剂可能导致压缩机启动时这些压缩元件的损坏。 在系统运行期间发生的其他事件也可能导致压缩机的供油瞬间损失，例如压缩机驱油，当进入压缩机的液体制冷剂可以冲洗压缩机泵送元件内的润滑剂时。 由间隙提供的另外的供油在间歇地中断向涡旋压缩机元件的输油期间或当通过涡旋压缩元件的油循环量少于期望时也是重要的。

公开(公告)号：US20060222510A1

公开(公告)日：2006-10-05

申请号：US11017304

申请日：2004-12-20

Applicant: Alexander Lifson ,  Michael Taras

Inventor： Alexander Lifson ,  Michael Taras

IPC: F04B49/06

CPC classification number: F04C28/04 ,  F04C18/0215 ,  F04C28/06 ,  F04C28/08 ,  F04C28/28 ,  F04C2270/72

Abstract: The shutdown of a compressor (10) installed in a refrigerant circuit (2) in air conditioning or refrigeration system is controlled so as to prevent unpowered reverse rotation of the compressor. Prior to terminating electric power to the compressor drive motor (24), the pressure within the system is relieved and substantially equalized across the compressor, thereby eliminating the possibility of unpowered reverse rotation of the compressor at shutdown. Pressure relief and equalization may be achieved by reducing the operating speed of the compressor to a low forward speed for a period of time prior to deenergizing the compressor drive motor. Pressure equalization may also be achieved by driving the compressor in reverse rotation prior to deenergizing the drive motor.

Abstract translation: 控制安装在空调或制冷系统中的制冷剂回路（2）中的压缩机（10）的关闭，以防止压缩机的无动力反向旋转。 在将压缩机驱动马达（24）的电力终止之前，系统内的压力在整个压缩机上被释放并基本相等，从而消除了关闭时压缩机无动力反转的可能性。 通过在压缩机驱动马达断电之前的一段时间内将压缩机的运行速度降低到较低的前进速度，可以实现泄压和均衡。 还可以通过在驱动马达断电之前将压缩机反向旋转来实现压力均衡。

公开(公告)号：US20060090501A1

公开(公告)日：2006-05-04

申请号：US10978570

申请日：2004-11-01

Applicant: Michael Taras ,  Alexander Lifson

Inventor： Michael Taras ,  Alexander Lifson

IPC: F25B29/00 ,  F25B39/02 ,  F25B41/00

CPC classification number: F24F3/153 ,  F25B1/10 ,  F25B6/00 ,  F25B41/04 ,  F25B2400/0403

Abstract: A refrigerant cycle is provided with a multi-port compressor or compressor stages connected in series, and multiple condensers. A single evaporator communicates with the plurality of condensers. At least one of the plurality of condensers receives fully compressed refrigerant while the other condensers receive refrigerant at intermediate pressure. A control can optionally direct refrigerant to the condensers to achieve desired system heat rejection characteristics and operating conditions. One or multiple reheat coils may be associated with the evaporator and are arranged either in series or in parallel to provide a desired dehumidification function and reheat stages. One or several of the intermediate pressure condensers may be utilized for the reheat function as well.

Abstract translation: 制冷循环具有串联连接的多口压缩机或压缩机级，以及多个冷凝器。 单个蒸发器与多个冷凝器连通。 多个冷凝器中的至少一个冷凝器接收完全压缩的制冷剂，而另一个冷凝器在中间压力下接收制冷剂。 控制器可以可选地将制冷剂引导到冷凝器以实现期望的系统排热特性和操作条件。 一个或多个再热线圈可以与蒸发器相关联并且被串联或并联设置以提供期望的除湿功能和再加热阶段。 中压压缩机中的一个或几个也可用于再热功能。