Multi-temp system with tandem compressors and reheat function
    51.
    发明申请
    Multi-temp system with tandem compressors and reheat function 有权
    具有串联压缩机和再热功能的多温系统

    公开(公告)号:US20060090504A1

    公开(公告)日:2006-05-04

    申请号:US10975869

    申请日:2004-10-28

    IPC分类号: F25B29/00 F25B1/10 F25B41/00

    摘要: A tandem compressor system is disclosed that delivers compressed refrigerant to a common discharge manifold, and then to a common condenser. From the common condenser, the refrigerant passes to a plurality of evaporators, with each of the evaporators being associated with a separate environment to be conditioned. A reheat function is provided by a reheat coil(s) for one or several environments such that desired temperature and humidity levels are achieved. Various reheat concepts and system configurations are disclosed, where the reheat coils are interconnected or independent from each other, as well as each evaporator is associated with a single or a plurality of the reheat coils.

    摘要翻译: 公开了一种串联压缩机系统,其将压缩的制冷剂输送到公共排放歧管,然后到公共的冷凝器。 从共同的冷凝器,制冷剂传递到多个蒸发器,其中每个蒸发器与待调节的单独的环境相关联。 再热功能由一个或多个环境的再热线圈提供,使得实现期望的温度和湿度水平。 公开了各种再热概念和系统配置,其中再热线圈彼此互连或独立,以及每个蒸发器与单个或多个再热线圈相关联。

    Refrigerant cycle with tandem compressors and multiple condensers
    52.
    发明申请
    Refrigerant cycle with tandem compressors and multiple condensers 有权
    串联压缩机和多个冷凝器的制冷循环

    公开(公告)号:US20060080984A1

    公开(公告)日:2006-04-20

    申请号:US10967862

    申请日:2004-10-18

    摘要: 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.

    摘要翻译: 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,可以实现独立控制多个区域的温度和排热量的能力,而不需要具有多个附加部件的专用电路。 因此,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。

    Discharge valve to increase heating capacity of heat pumps
    54.
    发明申请
    Discharge valve to increase heating capacity of heat pumps 有权
    排放阀增加热泵的加热能力

    公开(公告)号:US20060048526A1

    公开(公告)日:2006-03-09

    申请号:US10936034

    申请日:2004-09-08

    IPC分类号: F25B13/00 F25B41/04

    摘要: 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.

    摘要翻译: 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。

    Multi-circuit refrigerant cycle with dehumidification improvements
    55.
    发明申请
    Multi-circuit refrigerant cycle with dehumidification improvements 有权
    多回路制冷循环,除湿改善

    公开(公告)号:US20050241334A1

    公开(公告)日:2005-11-03

    申请号:US10833368

    申请日:2004-04-28

    摘要: Multi-circuit refrigerant systems are provided with better control over a dehumidification function. In one embodiment, system circuits have means of communication with each other through connecting lines and flow control devices operable on demand. In another embodiment, a single reheat heat exchanger is utilized for both circuits, ensuring heat transfer interaction between the circuits. In yet another embodiment, a control unit operates refrigerant circuits in such a way that if some circuits are in a reheat mode, the remaining circuits are either shut off or are in an enhanced reheat mode.

    摘要翻译: 多回路制冷系统具有更好的控制除湿功能。 在一个实施例中,系统电路具有通过可按需操作的连接线路和流量控制装置彼此通信的装置。 在另一个实施例中,单个再热换热器用于两个电路,确保电路之间的热传递相互作用。 在另一个实施例中,控制单元以这样的方式操作制冷剂回路,使得如果一些电路处于再热模式,则其余电路被切断或处于增强的再热模式。

    Combined operation and control of suction modulation and pulse width modulation valves
    56.
    发明授权
    Combined operation and control of suction modulation and pulse width modulation valves 有权
    吸入调制和脉宽调制阀的组合操作和控制

    公开(公告)号:US09139066B2

    公开(公告)日:2015-09-22

    申请号:US12516222

    申请日:2007-02-13

    IPC分类号: F25B41/04 F25B1/00 B60H1/00

    摘要: A refrigerant system is provided with a pulse width modulation suction valve and a second valve on a line that bypasses the pulse width modulation suction valve. This second valve has a variable opening. In this manner, the pressure within the compressor shell is maintained at the lowest possible level regardless of the system operating conditions, when the pulse width modulation suction valve is cycled to a closed position. Further, the second valve can continue providing capacity control, should the pulse width modulation suction valve fail.

    摘要翻译: 制冷剂系统在旁路脉宽调制吸入阀的管路上设置有脉宽调制吸入阀和第二阀。 该第二阀具有可变开口。 以这种方式,当脉冲宽度调制吸入阀循环到关闭位置时,压缩机壳体内的压力保持在最低可能水平,而与系统操作条件无关。 此外,如果脉宽调制吸入阀故障,第二阀可继续提供容量控制。

    Screw compressor with asymmetric ports
    57.
    发明授权
    Screw compressor with asymmetric ports 有权
    螺旋压缩机具有不对称端口

    公开(公告)号:US08956135B2

    公开(公告)日:2015-02-17

    申请号:US12935493

    申请日:2009-05-26

    申请人: Alexander Lifson

    发明人: Alexander Lifson

    摘要: A multi-rotor screw compressor includes a housing, a sun rotor, and first and second planet rotors. The first planet rotor intermeshes with the sun rotor to define a first compression pair. The second planet rotor intermeshes with the sun rotor to define a second compression pair. The first and second compression pairs are rotatably mounted in the housing. The housing includes a first port, a portion of which is in communication with the first compression pair, and a second port, a portion of which is in communication with the second compression pair. The portions of the first and second ports which communicate with the first and second compression pairs have a different geometry for offsetting pulsations in a working fluid flowing through the ports.

    摘要翻译: 多转子螺杆式压缩机包括壳体,太阳转子以及第一和第二行星转子。 第一行星转子与太阳转子相互啮合以限定第一压缩对。 第二行星转子与太阳转子相互啮合以限定第二压缩对。 第一和第二压缩对可旋转地安装在壳体中。 壳体包括第一端口,其一部分与第一压缩对连通,以及第二端口,其一部分与第二压缩对连通。 与第一和第二压缩对连通的第一和第二端口的部分具有不同的几何形状,用于抵消流过端口的工作流体中的脉动。

    Refrigeration systems with voltage modulated compressor motors and methods of their control
    58.
    发明授权
    Refrigeration systems with voltage modulated compressor motors and methods of their control 失效
    具有调压压缩机电机的制冷系统及其控制方法

    公开(公告)号:US08375735B2

    公开(公告)日:2013-02-19

    申请号:US12520052

    申请日:2006-12-18

    IPC分类号: F25B49/00 F25B1/00

    摘要: A refrigerant system is provided that includes a compressor, a motor for driving the compressor, a refrigerant system component, and a controller. The refrigerant system component can operate in a pulse width modulated mode having a loaded phase and an unloaded phase. The compressor motor is loaded in the loaded phase but unloaded in the unloaded phase. The controller applies a first voltage to the compressor motor in the loaded phase and a second voltage to the compressor motor in the unloaded phase. Here, the second voltage is less than the first voltage.

    摘要翻译: 提供一种制冷剂系统,其包括压缩机,用于驱动压缩机的电动机,制冷剂系统部件和控制器。 制冷剂系统部件可以以具有负载相和无负载相的脉宽调制模式工作。 压缩机电动机装载在负载阶段,但在卸载阶段卸载。 控制器在负载阶段向压缩机电动机施加第一电压,并在卸载阶段向压缩机电动机施加第二电压。 这里,第二电压小于第一电压。

    Refrigerant system with intercooler utilized for reheat function
    59.
    发明授权
    Refrigerant system with intercooler utilized for reheat function 有权
    具有用于再热功能的中间冷却器的制冷剂系统

    公开(公告)号:US08356491B2

    公开(公告)日:2013-01-22

    申请号:US12447492

    申请日:2006-12-21

    IPC分类号: F25B41/00

    摘要: A refrigerant system is provided with at least two stages of compression connected in series. An intercooler is positioned intermediate the two stages and is cooled by an indoor air stream. The intercooler is positioned to be in a path of air flow passing over an indoor heat exchanger, and preferably downstream of the indoor heat exchanger, in relation to this airflow. The intercooler cools the refrigerant flowing between the two compression stages as well as provides the reheat function. Benefits with regard to system performance (efficiency, capacity and reliability) are achieved with no additional circuitry or components required to provide the intercooler and reheat functions. This invention is particularly important for the CO2 refrigerant systems operating in the transcritical cycle. Methods of control are presented for both the intercooler and reheat functions.

    摘要翻译: 制冷剂系统具有串联连接的至少两级的压缩级。 中间冷却器位于两级之间,并被室内空气流冷却。 中间冷却器被定位成相对于该气流而位于通过室内热交换器,并且优选地在室内热交换器的下游的空气流的路径中。 中间冷却器冷却在两个压缩级之间流动的制冷剂,并提供再热功能。 无需额外的电路或组件来提供中间冷却器和再加热功能,可以实现系统性能(效率,容量和可靠性)的优势。 本发明对于在跨临界循环中运行的二氧化碳制冷剂系统特别重要。 给出了中冷器和再热功能的控制方法。

    Indoor air quality improvement by re-evaporation control
    60.
    发明授权
    Indoor air quality improvement by re-evaporation control 失效
    通过再蒸发控制改善室内空气质量

    公开(公告)号:US08347643B2

    公开(公告)日:2013-01-08

    申请号:US12161073

    申请日:2006-05-01

    IPC分类号: F25D17/00 F25D21/00

    摘要: 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.

    摘要翻译: 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。