CLOSED-LOOP DEHUMIDIFICATION CIRCUIT FOR REFRIGERANT SYSTEM
    1.
    发明申请
    CLOSED-LOOP DEHUMIDIFICATION CIRCUIT FOR REFRIGERANT SYSTEM 审中-公开
    制冷系统的闭环除湿电路

    公开(公告)号:WO2007018524A2

    公开(公告)日:2007-02-15

    申请号:PCT/US2005/027090

    申请日:2005-07-28

    CPC classification number: F24F3/153

    Abstract: A closed-loop reheat circuit decoupled from a main refrigerant circuit is provided as part of a refrigerant system. In the closed-loop reheat circuit refrigerant is flown through an auxiliary heat exchanger, at which it transfers heat to refrigerant in the main circuit, increasing its cooling and dehumidification potential prior to entering an evaporator. The closed-loop circuit also includes a reheat heat exchanger that is placed in the path of at least a portion of airflow having passed over an evaporator. The reheat heat exchanger reheats air supplied to a conditioned space to a desired temperature after sufficient amount of moisture has been removed from the air in the evaporator to provide a comfortable humidity level. By utilizing the closed-loop reheat circuit, a control for the overall refrigerant system becomes less complex and more flexible, and the refrigerant system operation turns out to be more reliable and satisfying a variety of environmental conditions and potential applications. Various features and options of the decoupled reheat circuit concept are also disclosed.

    Abstract translation: 作为制冷剂系统的一部分提供了与主制冷剂回路分离的闭环再加热回路。 在闭环再热回路中,制冷剂通过辅助热交换器流动,在辅助热交换器中,它将热量传递到主回路中的制冷剂,在进入蒸发器之前增加其冷却和除湿潜力。 闭环回路还包括一个再热交换器,其被放置在已经通过蒸发器的气流的至少一部分的路径中。 再加热热交换器在从蒸发器中的空气中除去足够量的水分以提供舒适的湿度水平之后,将供应到调节空间的空气再加热到所需温度。 通过利用闭环再热回路,整个制冷系统的控制变得不那么复杂和灵活,制冷系统运行更可靠,满足各种环境条件和潜在应用。 还公开了去耦加热电路概念的各种特征和选项。

    BYPASS UNLOADER VALVE FOR COMPRESSOR CAPACITY CONTROL
    2.
    发明申请
    BYPASS UNLOADER VALVE FOR COMPRESSOR CAPACITY CONTROL 审中-公开
    用于压缩机容量控制的旁路卸载阀

    公开(公告)号:WO2011005367A2

    公开(公告)日:2011-01-13

    申请号:PCT/US2010/035896

    申请日:2010-05-24

    CPC classification number: F04B49/225 F04B1/0452

    Abstract: A reciprocating compressor includes a cylinder block, a cylinder head, and a bypass unloader valve assembly. The cylinder block has a cylinder disposed therein. The cylinder head is secured to the cylinder block overlying the cylinder and has a suction plenum and a discharge plenum in selective fluid communication with the cylinder. The bypass unloader valve assembly is in operable communication with the cylinder head and is responsive to control signals to rapid cycle to allow for fluid communication of a refrigerant between the discharge plenum and the suction plenum.

    Abstract translation: 往复式压缩机包括气缸体,气缸盖和旁路卸载阀组件。 气缸体具有设置在其中的气缸。 气缸盖固定在气缸体上方,气缸体位于气缸上方,并具有吸气室和排气室,与气缸选择性流体连通。 旁通卸载阀组件可与气缸盖可操作地连通,并响应于控制信号以快速循环,以允许排气室和吸入室之间的制冷剂的流体连通。

    DEDICATED PULSING VALVE FOR COMPRESSOR CYLINDER
    4.
    发明申请
    DEDICATED PULSING VALVE FOR COMPRESSOR CYLINDER 审中-公开
    用于压缩机气缸的专用脉动阀

    公开(公告)号:WO2010019582A2

    公开(公告)日:2010-02-18

    申请号:PCT/US2009053417

    申请日:2009-08-11

    CPC classification number: F04B7/00 F04B1/02 F04B1/0452

    Abstract: A reciprocating piston compressor for use in a refrigerant compression circuit comprises first and second intake manifolds, first and second reciprocating piston compression units, an outlet manifold and a first pulsing valve. The intake manifolds segregate inlet flow into the compressor. The first and second reciprocating piston compression units receive flow from the first and second intake manifolds, respectively. The outlet manifold collects and distributes compressed refrigerant from the compression units. The first pulsing valve is mounted externally of the first intake manifold to regulate refrigerant flow into the first intake manifold. In another embodiment, a second valve is mounted externally of the second intake manifold to regulate flow into the second intake manifold, and the first and second valves are operated by a controller. The controller activates the first valve with variable width pulses having intervals less than an operating inertia of the refrigerant compression circuit.

    Abstract translation: 用于制冷剂压缩回路中的往复式活塞压缩机包括第一和第二进气歧管,第一和第二往复式活塞压缩单元,出口歧管和第一脉冲阀。 进气歧管将进气流分隔到压缩机中。 第一和第二往复式活塞压缩单元分别接收来自第一和第二进气歧管的流动。 出口歧管收集并分配来自压缩单元的压缩制冷剂。 第一脉冲阀安装在第一进气歧管的外部以调节进入第一进气歧管的制冷剂流。 在另一个实施例中,第二阀门安装在第二进气歧管的外部以调节进入第二进气歧管的流量,并且第一和第二阀门由控制器操作。 控制器利用具有小于制冷剂压缩回路的操作惯性的间隔的可变宽度脉冲来启动第一阀。

    MODULAR HEAT EXCHANGER
    5.
    发明申请
    MODULAR HEAT EXCHANGER 审中-公开
    模块式热交换器

    公开(公告)号:WO2009134760A3

    公开(公告)日:2010-02-18

    申请号:PCT/US2009041920

    申请日:2009-04-28

    Abstract: A modular multi-channel tube heat exchanger includes a plurality of aluminum heat exchanger modules selectively connected in fluid communication by interconnecting tubing. Each heat exchanger module includes an aluminum inlet header, an aluminum outlet header and a plurality of aluminum heat exchange tubes extending longitudinally therebetween. Each of the plurality of heat exchange tubes may have a plurality of flow paths extending longitudinally in parallel relationship from an inlet end thereof in fluid communication with the inlet header to an outlet end thereof in fluid communication with the outlet header.

    Abstract translation: 模块化多通道管式热交换器包括多个铝热交换器模块,其通过相互连接的管道以流体连通方式连接。 每个热交换器模块包括铝入口集管,铝出口集管和在它们之间纵向延伸的多个铝热交换管。 多个热交换管中的每一个可以具有多个流动路径,从其入口端部的入口端以与入口集管流体连通的其平行关系纵向延伸到与出口集管流体连通的出口端。

    REFRIGERANT SYSTEM PERFORMANCE ENHANCEMENT BY SUBCOOLING AT INTERMEDIATE TEMPERATURES
    6.
    发明申请
    REFRIGERANT SYSTEM PERFORMANCE ENHANCEMENT BY SUBCOOLING AT INTERMEDIATE TEMPERATURES 审中-公开
    制冷系统性能优于中间温度

    公开(公告)号:WO2009128813A1

    公开(公告)日:2009-10-22

    申请号:PCT/US2008/054257

    申请日:2008-04-19

    Abstract: A refrigerant system operates in an environment defined by three distinct temperature levels, such as, for instance, the outdoor ambient temperature level, the indoor temperature level and the refrigeration temperature level. The refrigerant system is provided with an air-to-refrigerant heat exchanger located within the general indoor environment and connected to receive the flow of refrigerant from a heat rejection heat exchanger. The air-to-refrigerant heat exchanger gives off heat to the indoor air and in the process further cools the refrigerant flowing to an expansion device to thereby increase the cooling effect provided by an evaporator to the refrigeration area. Provisions are also made to partially or entirely bypass the air-to-refrigerant heat exchanger and/or the heat rejection heat exchanger, on a selective basis.

    Abstract translation: 制冷剂系统在由三个不同的温度水平(例如室外环境温度水平,室内温度水平和制冷温度水平)限定的环境中操作。 制冷剂系统设置有位于一般室内环境内并连接以接收来自排热热交换器的制冷剂流的空气 - 制冷剂热交换器。 空气 - 制冷剂热交换器向室内空气发热,并且在该过程中进一步冷却流到膨胀装置的制冷剂,从而将由蒸发器提供的冷却效果提高到制冷区域。 还有选择地进行部分地或完全地旁路空气 - 制冷剂热交换器和/或排热热交换器。

    RAPID COMPRESSOR CYCLING
    8.
    发明申请
    RAPID COMPRESSOR CYCLING 审中-公开
    快速压缩机循环

    公开(公告)号:WO2009096968A1

    公开(公告)日:2009-08-06

    申请号:PCT/US2008/052571

    申请日:2008-01-31

    Abstract: A single speed compressor is provided with a switching device and control for turning the compressor drive motor ON and OFF in repeated succession at a selected ON time/OFF time ratio within a selected cycle time interval. The ON/OFF ratio and cycle time interval are selected to maintain desired temperature and/or humidity control within a conditioned space.

    Abstract translation: 单速压缩机设置有切换装置和用于在所选择的周期时间间隔内以选定的ON时间/ OFF时间比例重复连续地转动压缩机驱动电动机的控制。 选择ON / OFF比率和循环时间间隔以在调节空间内保持所需的温度和/或湿度控制。

    REFRIGERANT SYSTEM WITH INTERCOOLER AND LIQUID/VAPOR INJECTION
    9.
    发明申请
    REFRIGERANT SYSTEM WITH INTERCOOLER AND LIQUID/VAPOR INJECTION 审中-公开
    具有介质和液体/蒸汽喷射的制冷系统

    公开(公告)号:WO2009082405A1

    公开(公告)日:2009-07-02

    申请号:PCT/US2007/088794

    申请日:2007-12-26

    Abstract: A refrigerant system is provided with at least two sequential stages of compression. An intercooler is positioned intermediate the two stages. The refrigerant flowing through the intercooler is cooled by a secondary fluid such as ambient air. A vapor/liquid injection function is also provided for the refrigerant system. The intercooler function and the vapor/liquid injection function are selectively activated on demand depending on environmental conditions and thermal load in a conditioned space. This invention is particularly important for the CO2 refrigerant systems operating in the transcritical cycle.

    Abstract translation: 制冷剂系统具有至少两个连续的压缩级。 中间冷却器位于两个阶段之间。 流经中间冷却器的制冷剂由环境空气等二次流体冷却。 还为制冷剂系统提供蒸气/液体注入功能。 中间冷却器功能和蒸汽/液体喷射功能根据需要根据环境条件和调节空间中的热负荷来选择性地启动。 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。

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