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公开(公告)号：US06658867B1
公开(公告)日：2003-12-09
申请号：US10195697
申请日：2002-07-12
IPC分类号： F25B500
CPC分类号： F25B5/04 , F25B40/02 , F25B2400/06 , F25B2400/13
摘要： In an air conditioning system including a compressor, a condenser, and an evaporator, a process includes the steps of feeding discharged refrigerant from the compressor to the condenser so as to provide a condensed refrigerant flow; splitting the condensed refrigerant flow into a main flow and an auxiliary flow wherein the auxiliary flow includes between about 8 and about 12% wt. of total mass flow rate of the condensed refrigerant flow; reducing temperature and pressure of the auxiliary flow so as to provide an economizer flow; passing the economizer flow and the main flow through a heat exchanger so as to provide a sub-cooled main flow and an economizer discharge flow; feeding the economizer discharge flow to the compressor; and feeding the sub-cooled main flow through the evaporator to the compressor. The system and process in accordance with the present invention advantageously allow for parameter optimization, circuit combination, and performance improvement through integration of economized and non-economized circuits.
摘要翻译： 在包括压缩机，冷凝器和蒸发器的空调系统中，包括以下步骤：将排出的制冷剂从压缩机输送到冷凝器，以提供冷凝的制冷剂流; 将冷凝的制冷剂流分解成主流和辅助流，其中辅助流包括约8至约12重量％ 冷凝制冷剂流量的总质量流量; 降低辅助流的温度和压力，从而提供节约器流量; 使节能器流和主流通过热交换器，以提供次冷主流和节能器排出流; 将节能器排出流送到压缩机; 并将次冷主流通过蒸发器供给压缩机。 根据本发明的系统和过程有利地通过集成经济和非经济的电路来允许参数优化，电路组合和性能改进。
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公开(公告)号：US07854136B2
公开(公告)日：2010-12-21
申请号：US11199712
申请日：2005-08-09
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 electro-magnetic force. A control adjusts the amount of hydraulic or electro-magnetic 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在一个方向上偏置的两个板，并且通过液压或电磁力在相对的方向上。 控制器调节输送到板的液压或电磁力的量以实现流体移动装置的期望速度。
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公开(公告)号：US07114348B2
公开(公告)日：2006-10-03
申请号：US11252816
申请日：2005-10-18
IPC分类号： F25B41/06
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：US07013658B2
公开(公告)日：2006-03-21
申请号：US10771161
申请日：2004-02-03
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：US06964173B2
公开(公告)日：2005-11-15
申请号：US10695123
申请日：2003-10-28
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.
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公开(公告)号：US06928828B1
公开(公告)日：2005-08-16
申请号：US10762708
申请日：2004-01-22
CPC分类号： F25B41/04 , F25B1/10 , F25B2400/075 , F25B2400/13 , F25B2600/0261
摘要： A refrigerant cycle includes economized tandem compressors. The refrigerant cycle is also provided with a common economizer circuit for all tandem compressors. Common manifolds communicate discharge, suction and economizer return flows within the refrigerant cycle to each of the tandem compressors. Also, an optional unloader function is provided for each of the compressors. Various arrangements allow enhanced operation control, improved system reliability and reduced equipment life-cycle cost.
摘要翻译： 制冷剂循环包括经济的串联式压缩机。 制冷剂循环还配备有用于所有串联压缩机的通用节能器回路。 通用歧管将制冷剂循环内的排放，抽吸和节约器返回流量传递给每个串联式压缩机。 此外，为每个压缩机提供可选的卸载器功能。 各种布置允许增强的操作控制，提高的系统可靠性和减少设备的生命周期成本。
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7.发明授权Combined expansion device and four-way reversing valve in economized heat pumps 失效节能热泵组合式膨胀装置和四通换向阀公开(公告)号：US06892553B1
公开(公告)日：2005-05-17
申请号：US10693593
申请日：2003-10-24
CPC分类号： F25B41/046 , F25B13/00 , F25B41/062 , F25B2313/02742 , F25B2400/13 , F25B2500/18
摘要： A refrigerant system is operable in either heating mode or cooling mode. The system is also provided with an economizer cycle that will function in either heating mode or cooling mode. A four-way valve assembly selectively communicates refrigerant from either an indoor heat exchanger or outdoor heat exchanger to an economizer heat exchanger. The valve assembly further includes a restriction for restricting a refrigerant flow downstream of the economizer heat exchanger. The valve assembly provides two distinct restrictions such that a different size restriction is presented to the flow in cooling and heating modes. In this way, a single valve assembly can provide both the required routing for the alternative heating and cooling modes, and at the same time allow for distinct restriction sizes for the two modes without the necessity of separate expansion devices, also improving overall system cost and reliability.
摘要翻译： 制冷剂系统可以在加热模式或冷却模式中操作。 该系统还具有将在加热模式或冷却模式下工作的节能循环。 四通阀组件选择性地将制冷剂从室内热交换器或室外热交换器传送到节能器热交换器。 阀组件还包括用于限制节能热交换器下游的制冷剂流的限制。 阀组件提供了两个不同的限制，使得在冷却和加热模式下对流动提供了不同的尺寸限制。 以这种方式，单个阀组件可以为替代的加热和冷却模式提供所需的路线，并且同时允许两种模式的不同的限制尺寸，而不需要单独的膨胀装置，也提高整体系统成本， 可靠性。
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8.发明授权Control scheme for multiple operating parameters in economized refrigerant system 有权节约制冷系统中多种运行参数的控制方案公开(公告)号：US07997091B2
公开(公告)日：2011-08-16
申请号：US10829744
申请日：2004-04-22
IPC分类号： F25B41/00
CPC分类号： F25B49/02 , F25B2400/075 , F25B2400/13 , F25B2600/0261 , F25B2600/2509
摘要： A refrigerant cycle is provided with an economizer circuit. The amount of refrigerant passing through the economizer circuit can be gradually modulated by an expansion device whose position can be easily adjusted from fully open to fully closed or disengaged. In the past, economizer circuits have either been fully engaged or fully disengaged. Modulation of economizer flow allows for variable capacity operation. This improves unit operating efficiency, minimizes unit cycling and prevents compressor overloading at extreme of operating conditions. It also allows for head pressure and discharge temperature control.
摘要翻译： 制冷剂循环设有节能回路。 通过节能器回路的制冷剂量可以通过膨胀装置逐渐调节，膨胀装置的位置可以容易地从完全打开到完全关闭或分离。 在过去，节能器电路已经完全接合或完全脱离。 节能器流量调节允许可变容量运行。 这提高了单元运行效率，最大限度地减少了单元循环，并且在极端的运行条件下防止压缩机过载 它还允许头部压力和排气温度控制。
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公开(公告)号：US07137270B2
公开(公告)日：2006-11-21
申请号：US10891391
申请日：2004-07-14
IPC分类号： F25B13/00
CPC分类号： F25B13/00 , F25B1/10 , F25B2313/02742 , F25B2341/0662 , F25B2400/13 , F25B2400/23
摘要： A heat pump design with an economizer flash tank provides an efficient way to operate the system in both heating and cooling modes. Various expansion device types can be employed with this design. The invention enhances system performance in both cooling and heating modes of operation, through utilization of the flash tank economizer cycle, in simplistic and cost effective manner, while sustaining expansion device and entire system functionality through an appropriate refrigerant rerouting around the compressor and the flash tank.
摘要翻译： 具有节能器闪蒸罐的热泵设计提供了在加热和冷却模式下操作系统的有效方式。 在这种设计中可以采用各种扩展装置类型。 本发明以简单和成本有效的方式通过利用闪蒸罐节能循环来提高冷却和加热工作模式的系统性能，同时通过适当的制冷剂在压缩机和闪蒸罐周围重新路由维持膨胀装置和整个系统的功能 。
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公开(公告)号：US07000423B2
公开(公告)日：2006-02-21
申请号：US10692511
申请日：2003-10-24
IPC分类号： F25B13/00
CPC分类号： F25B13/00 , F25B41/003 , F25B41/04 , F25B2400/13
摘要： A refrigerant system is operable in either a heating mode or cooling mode. The system is also provided with an economizer cycle that will function in either heating mode or cooling mode. A pair of economizer heat exchangers are positioned adjacent to an air conditioning economizer expansion device, and a heat pump economizer expansion device, respectively. A control for the system will control the opening either the air conditioning economizer expansion device or the heat pump economizer expansion device, dependent on whether economized operation is desired, and whether the system is in cooling or heating mode. Thus, a pair of heat exchangers are utilized, with one being selected for economizer operation dependent on whether the system is in cooling or heating mode.
摘要翻译： 制冷剂系统可以在加热模式或冷却模式中操作。 该系统还具有将在加热模式或冷却模式下工作的节能循环。 一对节能器热交换器分别位于空调节能器膨胀装置和热泵节能器膨胀装置附近。 系统的控制将根据是否需要经济的操作以及系统是处于冷却还是制热模式来控制空调节能器膨胀装置或热泵节能器膨胀装置的打开。 因此，使用一对热交换器，其中一个选择用于节能器操作，取决于系统是处于冷却还是加热模式。
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