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公开(公告)号：US5479784A
公开(公告)日：1996-01-02
申请号：US239710
申请日：1994-05-09
申请人： Thomas J. Dobmeier , Thierry Jomard , Dennis Penge
发明人： Thomas J. Dobmeier , Thierry Jomard , Dennis Penge
摘要： A vapor compression system having a mixing and distributing unit mounted in the refrigerant circuit between the system expansion valve and evaporator. The unit includes a mixing vane and a nozzle for directing a uniformly distributed two phase mixture into the evaporator.
摘要翻译： 一种蒸汽压缩系统，其具有安装在系统膨胀阀和蒸发器之间的制冷剂回路中的混合和分配单元。 该单元包括用于将均匀分布的两相混合物引导到蒸发器中的混合叶片和喷嘴。
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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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3.发明授权Test for the automated detection of leaks between high and low pressure sides of a refrigeration system 有权测试制冷系统的高压侧和低压侧之间的泄漏的自动检测公开(公告)号：US06205798B1
公开(公告)日：2001-03-27
申请号：US09233770
申请日：1999-01-19
IPC分类号： F25B4902
CPC分类号： G01M3/2876 , F25B2500/222 , G01M3/3227
摘要： A method for the automated detection of leaks between the high and low-pressure sides of a refrigeration system is provided. A large pressure difference is created between the high pressure side and low-pressure side. By measuring and comparing system pressures at different times, the operational condition of valves which connect the high pressure side to the low-pressure side is accurately determined. By accurately determining that these valves are operating correctly, and in particular that no leaks exist in the valves, reports of false failures are prevented, while the reduction in the refrigeration system's capacity to heat or cool is prevented.
摘要翻译： 提供了一种用于自动检测制冷系统的高压侧和低压侧之间的泄漏的方法。 在高压侧和低压侧之间产生较大的压力差。 通过在不同时间测量和比较系统压力，精确确定连接高压侧和低压侧的阀门的运行状态。 通过准确地确定这些阀正在正常工作，特别是在阀门中不存在泄漏的情况下，可以防止制冷系统的加热或冷却能力的降低。
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4.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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公开(公告)号：US06233952B1
公开(公告)日：2001-05-22
申请号：US09234037
申请日：1999-01-19
IPC分类号： F25B4902
CPC分类号： F25B49/005 , F25B2400/19 , F25B2500/222 , F25D29/003
摘要： The present invention is a pretrip routine for testing a refrigeration system comprising a series of tests for testing aspects of mechanical operation of various individual components of the refrigeration system. In a preferred embodiment, a control unit executes the method of the invention by first testing mechanical operation of a refrigeration system compressor, then tests for leaks in high-to-low-side valves of a refrigeration system, before testing for leaks in a discharge test valve. A control unit may also test the opening/closing operation of various refrigeration system valves before, intermediate or subsequent to executing the above tests. The pretrip routine of the invention validates operation of a refrigeration system as a whole by testing the mechanical operation of individual system component, and, in testing the operation of those various system components, readily isolates the source of a particular problem within a particular component of a refrigeration system.
摘要翻译： 本发明是用于测试制冷系统的前置程序，其包括用于测试制冷系统的各个单独部件的机械操作方面的一系列测试。 在优选实施例中，控制单元通过首先测试制冷系统压缩机的机械操作来执行本发明的方法，然后在测试泄放泄漏之前测试制冷系统的高到低侧阀的泄漏 测试阀。 控制单元还可以在执行上述测试之前，中间或之后测试各种制冷系统阀的打开/关闭操作。 本发明的预制程序通过测试单个系统组件的机械操作来整体验证制冷系统的操作，并且在测试这些各种系统组件的操作时，容易地将特定问题的来源隔离在 一个制冷系统。
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公开(公告)号：US06170277B2
公开(公告)日：2001-01-09
申请号：US09233775
申请日：1999-01-19
IPC分类号： F25B4900
CPC分类号： F25B41/04 , F04B49/225 , F25B27/00 , F25B49/022 , F25B49/027 , F25B2500/07 , Y10S62/17
摘要： A method is provided for controlling a pressure in a refrigeration system which maintains a pressure within a refrigeration system below a predetermined upper limit, may optionally maintain the pressure above a predetermined lower limit. The pressure being controlled can be a discharge pressure, a suction pressure or the difference therebetween.
摘要翻译： 提供了一种用于控制将制冷系统内的压力维持在预定上限以下的制冷系统中的压力的方法，可以可选地将压力保持在预定的下限以上。 被控制的压力可以是排出压力，吸入压力或它们之间的差。
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公开(公告)号：US6067805A
公开(公告)日：2000-05-30
申请号：US234032
申请日：1999-01-19
CPC分类号： F25B49/005 , B60H1/00978 , F25D29/003
摘要： A refrigeration system for cooling or heating an area includes a condenser for removing heat from the system to an external environment, an evaporator for receiving heat from the area to be cooled or delivering heat to the area to be heated, and a compressor for raising the pressure and the temperature of a refrigerant. Prior to placing the system in a cooling or heating/defrost mode, it is desirable to run a pretrip routine to determine the operational condition of the refrigeration system. In the present invention, a pretrip device determines a refrigeration system parameter, and from this parameter selects one of at least two possible pretrip routine variations. Finally, the pretrip device executes the selected pretrip routine in order to determine the operational condition of a refrigeration system.
摘要翻译： 用于冷却或加热区域的制冷系统包括用于将热量从系统除去到外部环境的冷凝器，用于从要冷却的区域接收热量或将热量传递到待加热区域的蒸发器，以及用于提高 压力和制冷剂的温度。 在将系统置于冷却或加热/除霜模式之前，期望运行预制程序以确定制冷系统的操作状态。 在本发明中，前置装置确定制冷系统参数，并且根据该参数选择至少两个可能的预制程序变化中的一个。 最后，预制设备执行所选择的预制程序以确定制冷系统的操作状态。
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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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