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公开(公告)号：US20050204756A1
公开(公告)日：2005-09-22
申请号：US10805785
申请日：2004-03-22
申请人： Thomas Dobmeier , Michael Taras , Alexander Lifson
发明人： Thomas Dobmeier , Michael Taras , Alexander Lifson
CPC分类号： F25B49/005 , F25B2700/2116 , F25B2700/21163
摘要： An air conditioning, heating or refrigeration system includes a controller that automatically determines if refrigerant amount is above or below the desired amount within the system. In one example, a sensor measures the temperature difference between sub-cooled liquid and saturated condensing temperature and provides information to the controller. The controller determines a variance between the measured and an expected value. If that variance exceeds a selected threshold, the controller automatically determines that the amount of refrigerant in the system is outside of an acceptable range.
摘要翻译： 空调，加热或制冷系统包括一个自动确定制冷剂量高于或低于系统中所需量的控制器。 在一个示例中，传感器测量过冷却液体与饱和冷凝温度之间的温差，并向控制器提供信息。 控制器确定测量值和预期值之间的差异。 如果该方差超过所选阈值，则控制器自动确定系统中的制冷剂量在可接受的范围之外。
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公开(公告)号：US20050172663A1
公开(公告)日：2005-08-11
申请号：US10776096
申请日：2004-02-11
申请人： Thomas Dobmeier , Michael Taras , Alexander Lifson
发明人： Thomas Dobmeier , Michael Taras , Alexander Lifson
CPC分类号： F25B49/027 , F24F2003/1446 , F25B41/00 , F25B2400/061 , F25B2400/13
摘要： Multiple refrigerant circuits are operated in parallel, and each has an economizer cycle. One of the two circuits may have a greater capacity than the other. By controlling the two circuits to run in economized, conventional, bypassed, or economizer bypassed operation, the control is able to match demanded capacity. Moreover, by exercising similar technique, the control can provide better humidity control, can limit or maintain head pressure, and can avoid power consumption peaks.
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公开(公告)号：US20050166614A1
公开(公告)日：2005-08-04
申请号：US10771161
申请日：2004-02-03
申请人： Thomas Dobmeier , Michael Taras , Alexander Lifson
发明人： Thomas Dobmeier , Michael Taras , Alexander Lifson
CPC分类号： F25D21/14 , F24F2013/225 , F25B40/02
摘要： Refrigerant is circulated through a vapor compression system including a compressor, a condenser, an expansion device, and an evaporator. Cold condensate forms on the evaporator surfaces as the refrigerant accepts heat from an air stream. The cold condensate drips down from the evaporator coil and collects in a condensate pan. In one example, the cold condensate is directed into a condensate heat exchanger to subcool the refrigerant exiting the condenser. In another example, the refrigerant exiting the condenser flows through a refrigerant line located in the condensate pan. In another example, the cold condensate is sprayed on the refrigerant line exiting the condenser or on the subcooling portion of the condenser. By utilizing the condensate for further subcooling of the refrigerant, system capacity and efficiency are enhanced. Various control techniques and condensate flow methods are also disclosed.
摘要翻译： 制冷剂通过包括压缩机，冷凝器，膨胀装置和蒸发器的蒸汽压缩系统循环。 当制冷剂从空气流中接受热量时，冷凝物形成在蒸发器表面上。 冷凝液从蒸发器盘管下降并收集在冷凝盘中。 在一个实例中，冷冷凝物被引导到冷凝物热交换器中，以使冷却剂过冷却。 在另一个实例中，离开冷凝器的制冷剂流过位于冷凝盘中的制冷剂管线。 在另一个实例中，冷冷凝物喷射在离开冷凝器或冷凝器的过冷部分的制冷剂管线上。 通过利用冷凝物进一步冷却制冷剂，提高了系统的容量和效率。 还公开了各种控制技术和冷凝物流动方法。
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公开(公告)号：US20050097904A1
公开(公告)日：2005-05-12
申请号：US10703909
申请日：2003-11-07
申请人： Alexander Lifson , Michael Taras , Thomas Dobmeier
发明人： Alexander Lifson , Michael Taras , Thomas Dobmeier
IPC分类号： F25B45/00
CPC分类号： F25B45/00 , F25B2600/05 , F25B2600/2523 , F25B2700/195 , F25B2700/2106 , F25B2700/21163
摘要： An air conditioning system includes a supplemental storage container that allows for transferring refrigerant into or out of an air conditioning or refrigeration system based upon different operating conditions. In one example, a controller controls the operation of valves that selectively couple the storage container to the high pressure side or the low pressure side of the system. Depending on operating conditions, when it is desirable to increase an amount of refrigerant in the system, refrigerant is transferred from the storage container to the low pressure side of the air conditioning or refrigeration system. Under conditions where the amount of refrigerant in the system is above a desired amount, refrigerant can be transferred from the high side of air conditioning system to the storage container to bring the pressure within the system closer to the desired level.
摘要翻译： 空调系统包括补充存储容器，其允许基于不同的操作条件将制冷剂输入或输出空调或制冷系统。 在一个示例中，控制器控制选择性地将存储容器连接到系统的高压侧或低压侧的阀的操作。 根据操作条件，当期望增加系统中的制冷剂量时，制冷剂从储存容器转移到空调或制冷系统的低压侧。 在系统中的制冷剂量高于期望量的条件下，制冷剂可以从空调系统的高侧传送到储存容器，以使系统内的压力更接近所需的水平。
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公开(公告)号：US20070033957A1
公开(公告)日：2007-02-15
申请号：US11199712
申请日：2005-08-09
申请人： Michael Taras , Thomas Dobmeier , Alexander Lifson
发明人： Michael Taras , Thomas Dobmeier , Alexander Lifson
CPC分类号： F25B49/02 , F16H9/20 , F16H61/66263 , F16H61/66272 , F25B2400/13 , F25B2600/026 , F25B2600/111 , F25B2600/112 , Y02B30/743
摘要： A refrigerant system is provided with a variable speed drive for at least one of its fluid-moving devices, wherein the variable speed drive is provided by an automated mechanical drive. In the disclosed embodiment, one of the pulleys for driving the fluid-moving device has a variable diameter to vary the speed at which the fluid-moving device is driven. The pulley may include two plates that are biased in one direction by a spring or permanent magnet force, and in an opposed direction by a hydraulic or electromagnetic force. A control adjusts the amount of hydraulic or electromagnetic force delivered to the plates to achieve a desired speed for the fluid-moving device.
摘要翻译： 制冷剂系统设置有用于其流体移动装置中的至少一个的变速驱动器，其中变速驱动器由自动机械驱动器提供。 在所公开的实施例中，用于驱动流体移动装置的滑轮中的一个具有可变直径以改变流体运动装置被驱动的速度。 滑轮可以包括通过弹簧或永久磁力沿一个方向偏置的两个板，并且通过液压或电磁力在相反的方向上。 控制器调节输送到板的液压或电磁力的量以达到流体移动装置所需的速度。
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公开(公告)号：US20050126190A1
公开(公告)日：2005-06-16
申请号：US10732134
申请日：2003-12-10
申请人： Alexander Lifson , Michael Taras , Thomas Dobmeier
发明人： Alexander Lifson , Michael Taras , Thomas Dobmeier
CPC分类号： F25B49/005 , F25B2400/13 , F25B2500/06 , F25B2500/19 , F25B2500/222 , F25B2700/1931 , F25B2700/197 , F25B2700/2117
摘要： An actual superheat value in a refrigerant system is compared to an expected superheat level. If the actual superheat valve exceeds a certain predetermined value, this is an indication of refrigerant charge loss or a malfunctioning expansion device. In one example, the superheat valve is determined by comparing a difference between a saturated vapor temperature and an actual operating vapor temperature. The superheat determination can be made either at evaporator exit, economizer heat exchange exit or near the compressor discharge port.
摘要翻译： 将制冷剂系统中的实际过热值与预期的过热水平进行比较。 如果实际的过热阀超过一定的预定值，则说明制冷剂的充注损失或膨胀装置发生故障。 在一个实例中，通过比较饱和蒸汽温度和实际工作蒸汽温度之间的差来确定过热阀。 过热判定可以在蒸发器出口，节能器热交换出口或压缩机排出口附近进行。
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公开(公告)号：US20060056989A1
公开(公告)日：2006-03-16
申请号：US10938165
申请日：2004-09-10
申请人： Michael Taras , Alexander Lifson , Thomas Dobmeier
发明人： Michael Taras , Alexander Lifson , Thomas Dobmeier
CPC分类号： F04C28/28 , F04C18/0215 , F04C23/008 , F04C28/06 , F04C29/042 , F04C2270/72
摘要： An inventive method of preventing unpowered reverse rotation in a compressor includes the steps of placing a solenoid valve at a location near compressor discharge. The valve is preferably actuated soon after the power to the motor is cut off, blocking the flow of refrigerant from expanding back toward the compression chambers of the compressor. The compressor is disclosed as a scroll compressor, but may also be a screw compressor. These two types of compressors are susceptible to undesirable unpowered reverse rotation when compressed refrigerant re-expands through the compression elements from the compressor discharge into the compressor suction. By blocking the flow of refrigerant, this unpowered reverse rotation is prevented. A high pressure switch can be positioned directly upstream of the solenoid valve to immediately stop the compressor if the valve malfunctions and blocks the flow of refrigerant during normal compressor operation. This high pressure switch will prevent the continued operation of the compressor with the blocked discharge line by sending a signal to a control to cut the power to the compressor motor. A pressure differential switch can be utilized in a similar manner to avoid undesirably high pressure differentials across the valve. Also, the valve itself may be equipped with the flow bypass that opens when pressure differential across the valve exceeds a safe limit.
摘要翻译： 防止压缩机中无动力反向旋转的创新方法包括将电磁阀放置在压缩机排放附近的位置的步骤。 优选地，在电动机的动力被切断之后，阀被很快地启动，阻止制冷剂的流动朝向压缩机的压缩室向后扩展。 压缩机被公开为涡旋式压缩机，但是也可以是螺杆式压缩机。 当压缩的制冷剂通过压缩元件从压缩机排放物再膨胀进入压缩机抽吸时，这两种类型的压缩机容易受到不需要的无动力反向旋转。 通过阻止制冷剂的流动，防止了这种无动力的反向旋转。 高压开关可以直接位于电磁阀的上游，以在阀门故障时阻止压缩机，并在正常的压缩机运行期间阻止制冷剂的流动。 该高压开关将通过向控制器发送信号来切断对压缩机电动机的电力来防止具有堵塞排放管路的压缩机的继续操作。 可以以类似的方式使用压力差开关，以避免跨过阀门的不期望的高压差。 此外，阀门本身可以配备有当跨越阀门的压力差超过安全极限时打开的流量旁路。
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公开(公告)号：US20060048537A1
公开(公告)日：2006-03-09
申请号：US11252816
申请日：2005-10-18
申请人： Alexander Lifson , Thomas Dobmeier , Michael Taras
发明人： Alexander Lifson , Thomas Dobmeier , Michael Taras
CPC分类号： F25B41/062 , F25B13/00 , F25B2341/061 , F25B2500/01 , F25B2500/05 , F25B2500/21
摘要： An expansion device for the heat pump applications consists of a flow resistance device that has a different resistance to refrigerant flow depending on the flow direction through this device. The flow resistance device has no moving parts so that it avoids the damage, wear and contamination problems of the moveable piston in the prior art. The flow resistance device is a fixed obstruction about which the fluid must flow when traveling through the expansion device.
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公开(公告)号：US20050132728A1
公开(公告)日：2005-06-23
申请号：US10742038
申请日：2003-12-19
申请人： Alexander Lifson , Michael Taras , Thomas Dobmeier
发明人： Alexander Lifson , Michael Taras , Thomas Dobmeier
IPC分类号： F25B45/00
CPC分类号： F25B45/00 , F25B49/005 , F25B2345/001 , F25B2345/002 , F25B2500/24 , F25D2400/32
摘要： An air conditioning or refrigeration system includes an attached refrigerant receptacle associated with the system. During shipment or storage, the pressure within the system may exceed a selected threshold for the low pressure side. Under such circumstances, a pressure relief device automatically allows refrigerant to flow from the system into the attached receptacle, which brings the pressure within the system back to an acceptable level for the low pressure side. Various optional shutoff devices are disclosed that can be incorporated into the design to simplify receptacle removal or recycling.
摘要翻译： 空调或制冷系统包括与系统相关联的附接的制冷剂容器。 在装运或储存期间，系统内的压力可能超过低压侧的选定阀值。 在这种情况下，压力释放装置自动允许制冷剂从系统流入附接的容器，这将使系统内的压力恢复到低压侧的可接受的水平。 公开了可以并入设计中的各种可选的关闭装置，以简化容器移除或再循环。
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公开(公告)号：US20050086951A1
公开(公告)日：2005-04-28
申请号：US10695123
申请日：2003-10-28
申请人： Thomas Dobmeier , Michael Taras , Alexander Lifson
发明人： Thomas Dobmeier , Michael Taras , Alexander Lifson
CPC分类号： F25B49/005 , F25B41/062 , F25B49/022 , F25B2500/222 , F25B2600/2513 , F25B2700/1931 , F25B2700/1933 , F25B2700/2104 , F25B2700/2106
摘要： An air conditioning or refrigeration system includes an expansion device that has a plurality of operating positions. When the expansion device is in a fully open position, the expansion device provides an indication to a system controller regarding that position. The controller responsively determines if the fully open position of the expansion device is caused by an undesirably low amount of refrigerant charge in the system. In one example, the controller rules out other possible reasons for the expansion device being in the fully open position. In one example, the controller automatically shuts down appropriate portions of the system to avoid any component damage that may result from having too low refrigerant amount in the system.
摘要翻译： 空调或制冷系统包括具有多个操作位置的膨胀装置。 当膨胀装置处于完全打开位置时，膨胀装置向系统控制器提供关于该位置的指示。 控制器响应地确定膨胀装置的完全打开位置是否由系统中不希望的低量的制冷剂充注引起。 在一个示例中，控制器排除扩展设备处于完全打开位置的其他可能的原因。 在一个示例中，控制器自动关闭系统的适当部分，以避免可能由于系统中制冷剂量太低而导致的任何部件损坏。
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