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    LIQUID VAPOR SEPARATION IN TRANSCRITICAL REFRIGERANT CYCLE
    3.
    发明申请
    LIQUID VAPOR SEPARATION IN TRANSCRITICAL REFRIGERANT CYCLE 审中-公开

    公开(公告)号：WO2010039682A3

    公开(公告)日：2010-04-08

    申请号：PCT/US2009/058732

    申请日：2009-09-29

    Applicant: CARRIER CORPORATION ,  SCARCELLA, Jason ,  CHEN, Yu H.

    Inventor： SCARCELLA, Jason ,  CHEN, Yu H.

    IPC: F25B43/00 ,  F25B41/06 ,  F25B45/00

    Abstract: A refrigerant vapor compression system includes a flash tank disposed in the refrigerant circuit intermediate a refrigerant heat rejection heat exchanger and a refrigerant heat absorption heat exchanger. The flash tank has a shell defining an interior volume having an upper chamber, a lower chamber and a middle chamber. A first fluid passage establishes fluid communication between the middle chamber and the upper chamber and a second fluid passage establishing fluid communication between the middle chamber and the lower chamber. An inlet port opens to the middle chamber. A first outlet port opens to the upper chamber and a second outlet port opens to the lower chamber.

    FLASH TANK ECONOMIZER CYCLE CONTROL
    4.
    发明申请
    FLASH TANK ECONOMIZER CYCLE CONTROL 审中-公开
    闪存箱节约器周期控制

    公开(公告)号：WO2010036480A2

    公开(公告)日：2010-04-01

    申请号：PCT/US2009055358

    申请日：2009-08-28

    Applicant: CARRIER CORP ,  HUFF HANS-JOACHIM ,  SCARCELLA JASON

    Inventor： HUFF HANS-JOACHIM ,  SCARCELLA JASON

    IPC: F25B49/02 ,  F25B41/04 ,  F25B43/00

    CPC classification number: F25B1/10 ,  F25B2309/061 ,  F25B2400/13 ,  F25B2400/23 ,  F25B2500/07 ,  F25B2600/2509 ,  F25B2700/19 ,  F25B2700/193 ,  F25B2700/2109

    Abstract: A flash tank economizer includes a sensor for sensing a condition indicative of pressure in the flash tank, and when that pressure is found to equal or exceed the critical pressure of the particular refrigerant being used, a controller responsively closes a valve in the economizer vapor line to shut off the economizer. A sensor is also provided to sense the pressure at the compressor mid-stage, and if that pressure is found to exceed the pressure in the flash tank, the controller causes the flow control device to function so as to prevent the flow of refrigerant from the compressor mid-stage to the flash tank. Provision is also made for selectively draining refrigerant from the flash tank to reduce the pressure therein from a supercritical to a subcritical condition.

    Abstract translation: 闪蒸罐节能器包括用于感测指示闪蒸罐中的压力的​​状况的传感器，并且当发现该压力等于或超过所使用的特定制冷剂的临界压力时，控制器响应地关闭经济器蒸气管线中的阀 关闭省煤器。 还设置了一个传感器来检测压缩机中期的压力，如果发现该压力超过了闪蒸罐中的压力，则控制器使流量控制装置起作用，以防止制冷剂从 压缩机中间阶段到闪蒸罐。 也提供了选择性地从闪蒸罐中排出制冷剂以将其中的压力从超临界状态降低到亚临界状态。

    FLASH TANK ECONOMIZER CYCLE CONTROL
    5.
    发明申请
    FLASH TANK ECONOMIZER CYCLE CONTROL 审中-公开

    公开(公告)号：WO2010036480A3

    公开(公告)日：2010-04-01

    申请号：PCT/US2009/055358

    申请日：2009-08-28

    Applicant: CARRIER CORPORATION ,  HUFF, Hans-Joachim ,  SCARCELLA, Jason

    Inventor： HUFF, Hans-Joachim ,  SCARCELLA, Jason

    IPC: F25B49/02 ,  F25B41/04 ,  F25B43/00

    Abstract: A flash tank economizer includes a sensor for sensing a condition indicative of pressure in the flash tank, and when that pressure is found to equal or exceed the critical pressure of the particular refrigerant being used, a controller responsively closes a valve in the economizer vapor line to shut off the economizer. A sensor is also provided to sense the pressure at the compressor mid-stage, and if that pressure is found to exceed the pressure in the flash tank, the controller causes the flow control device to function so as to prevent the flow of refrigerant from the compressor mid-stage to the flash tank. Provision is also made for selectively draining refrigerant from the flash tank to reduce the pressure therein from a supercritical to a subcritical condition.

    COMPRESSOR REVERSE ROTATION OF VARIABLE DURATION ON START UP
    6.
    发明申请
    COMPRESSOR REVERSE ROTATION OF VARIABLE DURATION ON START UP 审中-公开
    压缩机启动时可变持续时间的反转

    公开(公告)号：WO2008111976A3

    公开(公告)日：2008-12-18

    申请号：PCT/US2007063837

    申请日：2007-03-13

    Applicant: CARRIER CORP ,  LIFSON ALEXANDER ,  SCARCELLA JASON D

    Inventor： LIFSON ALEXANDER ,  SCARCELLA JASON D

    IPC: F04B49/00 ,  F01C1/02 ,  F01C1/063 ,  F04B35/04

    CPC classification number: F04C18/0215 ,  F04C23/008 ,  F04C28/06 ,  F04C29/045

    Abstract: In a method of operating a compressor at startup, the compressor is rotated in reverse for a brief period of time. The compressor is of a type that does not compress liquid when rotated in reverse. The purpose is to boil off the liquid refrigerant from the oil by heating and agitating the mixture of oil and refrigerant in the oil sump. This results in a much more benign forward start as less refrigerant is drawn into the compressor pump and the amount of oil pumped out of the compressor on start up is minimized. Also, the viscosity of oil is increased and lubrication of the bearings is improved. After a short period of time reverse rotation is stopped and the compressor can start rotating in the forward direction. The short period of time of reverse rotation is varied based upon system conditions. In one embodiment, the variation can occur by reducing the reverse run time as ambient temperature increases. In another embodiment, electrical conditions such as incoming voltage and/or a ratio of voltage to frequency can be utilized to change the reverse run time.

    Abstract translation: 在启动时操作压缩机的方法中，压缩机反向旋转短时间。 压缩机是反向旋转时不会压缩液体的类型。 目的是通过加热和搅拌油底壳中的油和制冷剂的混合物来从油中清除液体制冷剂。 这导致更加良性的正向启动，因为较少的制冷剂被吸入到压缩机泵中，并且在起动时从压缩机中泵出的油的量被最小化。 此外，油的粘度增加，轴承的润滑性提高。 在短时间之后，反转停止，压缩机可以向前方开始旋转。 反向旋转的短时间段根据系统条件而变化。 在一个实施例中，通过在环境温度升高时减少反向运行时间可以发生变化。 在另一个实施例中，可以利用诸如输入电压和/或电压与频率之比的电气条件来改变反向运行时间。

    COMPRESSOR REVERSE ROTATION OF VARIABLE DURATION ON START UP
    7.
    发明申请
    COMPRESSOR REVERSE ROTATION OF VARIABLE DURATION ON START UP 审中-公开
    压缩机反转启动时的变化持续时间

    公开(公告)号：WO2008111976A2

    公开(公告)日：2008-09-18

    申请号：PCT/US2007/063837

    申请日：2007-03-13

    Applicant: CARRIER CORPORATION ,  LIFSON, Alexander ,  SCARCELLA, Jason D.

    Inventor： LIFSON, Alexander ,  SCARCELLA, Jason D.

    IPC: F04B49/00

    CPC classification number: F04C18/0215 ,  F04C23/008 ,  F04C28/06 ,  F04C29/045

    Abstract: In a method of operating a compressor at startup, the compressor is rotated in reverse for a brief period of time. The compressor is of a type that does not compress liquid when rotated in reverse. The purpose is to boil off the liquid refrigerant from the oil by heating and agitating the mixture of oil and refrigerant in the oil sump. This results in a much more benign forward start as less refrigerant is drawn into the compressor pump and the amount of oil pumped out of the compressor on start up is minimized. Also, the viscosity of oil is increased and lubrication of the bearings is improved. After a short period of time reverse rotation is stopped and the compressor can start rotating in the forward direction. The short period of time of reverse rotation is varied based upon system conditions. In one embodiment, the variation can occur by reducing the reverse run time as ambient temperature increases. In another embodiment, electrical conditions such as incoming voltage and/or a ratio of voltage to frequency can be utilized to change the reverse run time.

    Abstract translation: 在启动时操作压缩机的方法中，压缩机在短时间内反向旋转。 压缩机属于逆向旋转时不压缩液体的类型。 其目的是通过加热和搅动油槽中油和制冷剂的混合物来从油中蒸发液体制冷剂。 由于制冷剂吸入压缩机泵的次数减少，启动时从压缩机泵出的油量减到最小，这样可以带来更好的前向启动。 而且，油的粘度增加并且轴承的润滑被改善。 经过一段时间后，反向旋转停止，压缩机可以开始正向旋转。 反转的短时间段根据系统条件而变化。 在一个实施例中，该变化可以通过随着环境温度增加而减少反向运行时间来发生。 在另一个实施例中，可以利用诸如输入电压和/或电压与频率之比的电气条件来改变反向运行时间。

    MICRO-CHANNEL EVAPORATOR WITH FROST DETECTION AND CONTROL
    8.
    发明申请
    MICRO-CHANNEL EVAPORATOR WITH FROST DETECTION AND CONTROL 审中-公开
    具有FROST检测和控制的MICRO-CHANNEL EVAPORATOR

    公开(公告)号：WO2008108757A1

    公开(公告)日：2008-09-12

    申请号：PCT/US2007/005724

    申请日：2007-03-06

    Applicant: CARRIER CORPORATION ,  LIFSON, Alexander ,  SCARCELLA, Jason ,  TARAS, Michael F.

    Inventor： LIFSON, Alexander ,  SCARCELLA, Jason ,  TARAS, Michael F.

    IPC: F25D21/06

    CPC classification number: F25D21/006 ,  F25B39/02 ,  F25D21/02 ,  F25D21/06

    Abstract: A refrigerant vapor compression system includes an evaporator having a plurality of longitudinally extending, flattened heat exchange tubes disposed in parallel, spaced relationship. Each of the heat exchange tubes has a flattened cross-section and defining a plurality of discrete, longitudinally extending refrigerant flow passages. One or more frost detection sensor(s) is/are installed in operative association with the evaporator for detecting a presence of frost/ice formation on at one of the flattened heat exchange tubes and associated heat transfer fins. A defrost system is provided and operatively associated with the evaporator heat exchanger. A controller, operatively coupled to the frost detection sensor(s) and to the defrost system, selectively activates the defrost system to initiate a defrost cycle of the evaporator in response to the signal indicative of the presence of frost formation on the flattened heat exchange tubes and heat transfer fins.

    Abstract translation: 制冷剂蒸气压缩系统包括具有多个纵向延伸的扁平换热管的蒸发器，该热交换管以平行，间隔的关系设置。 每个热交换管具有扁平的横截面并且限定多个不连续的纵向延伸的制冷剂流动通道。 一个或多个霜检测传感器被安装成与蒸发器操作关联，用于检测在平坦的热交换管和相关联的传热翅片之一上存在霜/冰的形成。 提供除霜系统并与蒸发器热交换器可操作地相关联。 可操作地耦合到霜检测传感器和除霜系统的控制器选择性地启动除霜系统以响应于指示在扁平换热管上形成霜的信号而启动蒸发器的除霜循环 和传热翅片。

    REFRIGERATION UNIT WITH INTEGRATED STRUCTURAL CONDENSER COIL SUPPORT
    9.
    发明申请
    REFRIGERATION UNIT WITH INTEGRATED STRUCTURAL CONDENSER COIL SUPPORT 审中-公开
    具有集成结构冷凝器线圈支持的制冷单元

    公开(公告)号：WO2008045113A1

    公开(公告)日：2008-04-17

    申请号：PCT/US2006/048841

    申请日：2006-12-22

    Applicant: CARRIER CORPORATION ,  STONE, Dennis, M. ,  ANDERSON, Thomas, A. ,  SCARCELLA, Jason

    Inventor： STONE, Dennis, M. ,  ANDERSON, Thomas, A. ,  SCARCELLA, Jason

    IPC: F25D19/00

    CPC classification number: F25D19/003 ,  B65D88/121 ,  B65D88/74 ,  F28F9/013

    Abstract: A refrigeration unit for a shipping container exposed to end loads and rack loads. The refrigeration unit has a frame, a back panel, a plurality of structural support brackets secured to the back panel, a condenser cover secured to the plurality of structural support brackets so that the condenser cover, the plurality of structural support brackets, the frame, and the back panel form a structural member sufficient to support end loads and rack loads. The refrigeration unit also has a condenser coil having a first end and a second end, a first coil support member secured to one of the structural support brackets and secured around the first end, and a second coil support member secured to one of the structural support brackets and secured around the second end. The first and second coil support members maintain the condenser coil unstressed from the end loads and rack loads.

    Abstract translation: 用于运输容器的制冷单元暴露于端部负载和机架负载。 制冷单元具有框架，后面板，固定到后面板的多个结构支撑托架，固定到多个结构支撑托架的冷凝器盖，使得冷凝器盖，多个结构支撑托架，框架， 并且后面板形成足以支撑端部负载和机架负载的结构构件。 制冷单元还具有一个具有第一端和第二端的冷凝器盘管，一个固定到一个结构支撑支架并固定在第一端附近的第一线圈支撑件，以及固定到结构支撑件之一上的第二线圈支撑件 支架并固定在第二端附近。 第一和第二线圈支撑构件保持冷凝器线圈不受端部负载和机架负载的影响。

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