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1. 发明申请

US20050172648A1 Defrost mode for HVAC heat pump systems 有权
标题翻译： HVAC热泵系统的除霜模式
公开(公告)号：US20050172648A1
公开(公告)日：2005-08-11
申请号：US10776374
申请日：2004-02-11
申请人： Julio Concha , Yu Chen , Young Park , Tobias Sienel
发明人： Julio Concha , Yu Chen , Young Park , Tobias Sienel
IPC分类号： F25B30/02 , F25B39/04 , F25B47/02 , F25D21/00
CPC分类号： F25B30/02 , F25B47/022 , F25B2339/047 , F25B2400/0403 , F25B2500/18 , F25B2500/19 , F25B2700/133 , F25B2700/2106 , F25B2700/21151
摘要： A heat pump, and in particular a heat pump for heating a hot water supply is provided with an improved defrost mode. The defrost mode is actuated to remove frost from an outdoor evaporator that may accumulate during cold weather operation. An algorithm for operation of the defrost mode is developed experimentally by seeking to maximize the heat transfer provided by the refrigerant. A heating system condition is experimentally related to the heat transfer capacity. One then maximizes the average heat transfer capacity to determine the optimum initiation point for the defrost mode. Further, protections are included into the defrost mode. When the heat pump is utilized to heat hot water, methods are provided to prevent the water that remains in the heat exchanger from becoming unduly heated. In one method, the water pump may be periodically operated to move the water. In a second method, a control ensures the discharge pressure of the refrigerant leaving the compressor is reduced, and that the water pump is not stopped until that reduced temperature falls below a predetermined maximum. The temperature reduction is achieved through a dual control loop wherein a temperature that is too high results in a new desired discharge pressure. The control achieves the new desired pressure by controlling the expansion device. In another protection feature, as a control determines that the defrost mode is nearing its end, an evaporator fan is run to remove melted water from the evaporator coils, and also to ensure the refrigerant leaving the evaporator does not reach unduly high pressure or temperatures.
摘要翻译：具有改进的除霜模式的热泵，特别是用于加热热水源的热泵。启动除霜模式以从室外蒸发器中除霜，这可能会在寒冷天气下运行时积聚。通过试图使制冷剂提供的热传递最大化，实验地开发了除霜模式的操作算法。加热系统条件实验上与传热能力有关。然后将平均传热能力最大化，以确定除霜模式的最佳起始点。此外，保护被包括在除霜模式中。当使用热泵来加热热水时，提供了防止热交换器中残留的水变得过度加热的方法。在一种方法中，水泵可以周期性地操作以移动水。在第二种方法中，控制器确保离开压缩机的制冷剂的排放压力降低，并且水泵不停止，直到降低的温度降到预定的最大值以下。通过双重控制回路实现温度降低，其中太高的温度导致新的期望排出压力。该控制通过控制膨胀装置实现新的期望压力。在另一个保护特征中，当控制器确定除霜模式接近其结束时，运行蒸发器风扇以从蒸发器盘管去除熔化的水，并且还确保离开蒸发器的制冷剂不会达到过高的压力或温度。

2. 发明申请

US20070204636A1 DEFROST MODE FOR HVAC HEAT PUMP SYSTEMS 有权
标题翻译： HVAC热泵系统的DEFROST模式
公开(公告)号：US20070204636A1
公开(公告)日：2007-09-06
申请号：US11744339
申请日：2007-05-04
申请人： Julio Concha , Yu Chen , Young Park , Tobias Sienel
发明人： Julio Concha , Yu Chen , Young Park , Tobias Sienel
IPC分类号： F25B47/02
CPC分类号： F25B30/02 , F25B47/022 , F25B2339/047 , F25B2400/0403 , F25B2500/18 , F25B2500/19 , F25B2700/133 , F25B2700/2106 , F25B2700/21151
摘要： A heat pump, and in particular a heat pump for heating a hot water supply is provided with an improved defrost mode. The defrost mode is actuated to remove frost from an outdoor evaporator that may accumulate during cold weather operation. An algorithm for operation of the defrost mode is developed experimentally by seeking to maximize the heat transfer provided by the refrigerant. A heating system condition is experimentally related to the heat transfer capacity. One then maximizes the average heat transfer capacity to determine the optimum initiation point for the defrost mode. Further, protections are included into the defrost mode. When the heat pump is utilized to heat hot water, methods are provided to prevent the water that remains in the heat exchanger from becoming unduly heated. In one method, the water pump may be periodically operated to move the water. In a second method, a control ensures the discharge pressure of the refrigerant leaving the compressor is reduced, and that the water pump is not stopped until that reduced temperature falls below a predetermined maximum. The temperature reduction is achieved through a dual control loop wherein a temperature that is too high results in a new desired discharge pressure. The control achieves the new desired pressure by controlling the expansion device. In another protection feature, as a control determines that the defrost mode is nearing its end, an evaporator fan is run to remove melted water from the evaporator coils, and also to ensure the refrigerant leaving the evaporator does not reach unduly high pressure or temperatures.
摘要翻译：具有改进的除霜模式的热泵，特别是用于加热热水源的热泵。启动除霜模式以从室外蒸发器中除霜，这可能会在寒冷天气下运行时积聚。通过试图使制冷剂提供的热传递最大化，实验地开发了除霜模式的操作算法。加热系统条件实验上与传热能力有关。然后将平均传热能力最大化，以确定除霜模式的最佳起始点。此外，保护被包括在除霜模式中。当使用热泵来加热热水时，提供了防止热交换器中残留的水变得过度加热的方法。在一种方法中，水泵可以周期性地操作以移动水。在第二种方法中，控制器确保离开压缩机的制冷剂的排放压力降低，并且水泵不停止，直到降低的温度降到预定的最大值以下。通过双重控制回路实现温度降低，其中太高的温度导致新的期望排出压力。该控制通过控制膨胀装置实现新的期望压力。在另一个保护特征中，当控制器确定除霜模式接近其结束时，运行蒸发器风扇以从蒸发器盘管去除熔化的水，并且还确保离开蒸发器的制冷剂不会达到过高的压力或温度。

3. 发明申请

US20050268625A1 Method of controlling a carbon dioxide heat pump water heating system 失效
标题翻译：控制二氧化碳热泵水加热系统的方法
公开(公告)号：US20050268625A1
公开(公告)日：2005-12-08
申请号：US10862589
申请日：2004-06-07
申请人： Tobias Sienel , Yu Chen , Bryan Eisenhower , Julio Concha , Young Park , Lili Zhang , Jeffrey Nieter , Nicolas Pondicq-Cassou
发明人： Tobias Sienel , Yu Chen , Bryan Eisenhower , Julio Concha , Young Park , Lili Zhang , Jeffrey Nieter , Nicolas Pondicq-Cassou
IPC分类号： F25B9/00 , F25B15/00 , F25B49/00 , G01K13/00
CPC分类号： F25B49/005 , F25B9/008 , F25B2309/061 , F25B2339/047 , F25B2700/1931 , F25B2700/1933 , F25B2700/21151
摘要： A method of detecting and diagnosing operating conditions for a heat pump water heating system includes the steps of monitoring system operating conditions and comparing actual operating conditions to predicted operating conditions. The predicted operating conditions are based on expected pressures and temperatures given current system inputs. A difference between the actual and expected values for refrigerant pressures and temperature outside a desired range provides indication of a fault in the system. The system controller initiates a prompt to alert of the need for maintenance and direct to potential causes.
摘要翻译：检测和诊断热泵水加热系统的运行条件的方法包括监测系统运行状况并将实际操作条件与预测运行条件进行比较的步骤。预测的运行条件基于当前系统输入的预期压力和温度。制冷剂压力和所需范围之外的温度的实际值和预期值之间的差异提供了系统故障的指示。系统控制器启动一个提示，提醒维护需要，并引导潜在的原因。

4. 发明申请

US20050193753A1 Pressure regulation in a transcritical refrigerant cycle 有权
标题翻译：跨临界制冷剂循环中的压力调节
公开(公告)号：US20050193753A1
公开(公告)日：2005-09-08
申请号：US10793489
申请日：2004-03-04
申请人： Julio Concha , Tobias Sienel , Bryan Eisenhower , Yu Chen
发明人： Julio Concha , Tobias Sienel , Bryan Eisenhower , Yu Chen
IPC分类号： F25B9/00 , F25B41/00 , F25B41/04 , F25B41/06
CPC分类号： F25B9/008 , F25B41/062 , F25B2309/061 , F25B2339/047 , F25B2600/17 , F25B2600/2513 , F25B2700/1931 , F25B2700/2106 , F25B2700/21161
摘要： A refrigerant cycle is provided with a control for an expansion device to achieve a desired compressor discharge pressure. The system operates transcritically, such that greater freedom over compressor discharge pressure is provided. The system's efficiency is optimized by selecting an optimum discharge pressure. The optimum discharge pressure is selected based upon sensed environmental conditions, and the expansion device is adjusted to achieve the desired compressor discharge pressure. A feedback loop may be provided to sense the actual compressor discharge pressure and adjust the actual compressor discharge pressure by further refining the expansion device. The system is disclosed providing heated water based upon a demand for a particular hot water temperature. Further, the optimum discharge pressures may be determined experimentally, with an offset added to the experimentally determined value to ensure that the actual pressure is higher than the desired, or optimum pressure for the particular refrigerant cycle. In one embodiment, a formula is utilized to determine the optimum discharge pressure.
摘要翻译：制冷循环具有用于膨胀装置的控制以实现期望的压缩机排出压力。该系统跨运行，从而提供了比压缩机排放压力更大的自由度。通过选择最佳排放压力来优化系统的效率。基于感测到的环境条件选择最佳排出压力，并且调节膨胀装置以实现期望的压缩机排出压力。可以提供反馈回路以感测实际的压缩机排放压力，并通过进一步细化膨胀装置来调节实际的压缩机排放压力。公开了该系统基于对特定热水温度的需求来提供加热的水。此外，可以通过实验确定最佳排出压力，并将偏移量加到实验确定值上，以确保实际压力高于特定制冷剂循环的期望压力或最佳压力。在一个实施例中，使用公式来确定最佳排出压力。

5. 发明授权

US07028494B2 Defrosting methodology for heat pump water heating system 失效
标题翻译：热泵水加热系统除霜方法
公开(公告)号：US07028494B2
公开(公告)日：2006-04-18
申请号：US10646253
申请日：2003-08-22
申请人： Nicolas Pondicq-Cassou , Jean-Philippe Goux , Yu Chen , Julio Concha , Tobias Sienel , Sylvain Douzet
发明人： Nicolas Pondicq-Cassou , Jean-Philippe Goux , Yu Chen , Julio Concha , Tobias Sienel , Sylvain Douzet
IPC分类号： F25D21/06 , F25B41/00 , F25B49/00
CPC分类号： F25B9/008 , F25B47/022 , F25B2309/061 , F25B2339/047 , F25B2400/0403 , F25B2700/11
摘要： Refrigerant is circulated through a vapor compression system including a compressor, a gas cooler, an expansion device, and an evaporator. When a sensor detects that frozen water droplets form on the evaporator, a valve positioned between the discharge of the compression and inlet of expansion device is opened. Refrigerant from the discharge of the compressor bypasses the gas cooler and enters the inlet of the expansion device. The high temperature refrigerant melts the frost on the evaporator. As the frost melts, the passage of the evaporator is opened to allow air to flow through the evaporator.
摘要翻译：制冷剂通过包括压缩机，气体冷却器，膨胀装置和蒸发器的蒸汽压缩系统循环。当传感器检测到在蒸发器上形成冷冻水滴时，打开位于膨胀装置的压缩和入口的排出口之间的阀。来自压缩机排放的制冷剂绕过气体冷却器并进入膨胀装置的入口。高温制冷剂使蒸发器上的霜冻。当霜熔化时，蒸发器的通道打开以允许空气流过蒸发器。

6. 发明授权

US07010925B2 Method of controlling a carbon dioxide heat pump water heating system 失效
标题翻译：控制二氧化碳热泵水加热系统的方法
公开(公告)号：US07010925B2
公开(公告)日：2006-03-14
申请号：US10862589
申请日：2004-06-07
申请人： Tobias Sienel , Yu Chen , Bryan Eisenhower , Julio Concha , Young Kyu Park , Lili Zhang , Jeffrey Nieter , Nicolas Pondicq-Cassou
发明人： Tobias Sienel , Yu Chen , Bryan Eisenhower , Julio Concha , Young Kyu Park , Lili Zhang , Jeffrey Nieter , Nicolas Pondicq-Cassou
IPC分类号： F25B1/00
CPC分类号： F25B49/005 , F25B9/008 , F25B2309/061 , F25B2339/047 , F25B2700/1931 , F25B2700/1933 , F25B2700/21151
摘要： A method of detecting and diagnosing operating conditions for a heat pump water heating system includes the steps of monitoring system operating conditions and comparing actual operating conditions to predicted operating conditions. The predicted operating conditions are based on expected pressures and temperatures given current system inputs. A difference between the actual and expected values for refrigerant pressures and temperature outside a desired range provides indication of a fault in the system. The system controller initiates a prompt to alert of the need for maintenance and direct to potential causes.
摘要翻译：检测和诊断热泵水加热系统的运行条件的方法包括监测系统运行状况并将实际操作条件与预测运行条件进行比较的步骤。预测的运行条件基于当前系统输入的预期压力和温度。制冷剂压力和所需范围之外的温度的实际值和预期值之间的差异提供了系统故障的指示。系统控制器启动一个提示，提醒维护需要，并引导潜在的原因。

7. 发明申请

US20050039473A1 Defrosting methodology for heat pump water heating system 失效
标题翻译：热泵水加热系统除霜方法
公开(公告)号：US20050039473A1
公开(公告)日：2005-02-24
申请号：US10646253
申请日：2003-08-22
申请人： Nicolas Pondicq-Cassou , Jean-Philippe Goux , Yu Chen , Julio Concha , Tobias Sienel , Sylvain Douzet
发明人： Nicolas Pondicq-Cassou , Jean-Philippe Goux , Yu Chen , Julio Concha , Tobias Sienel , Sylvain Douzet
IPC分类号： F25B9/00 , F25B47/02 , F25D21/06 , F25B41/00 , F25B49/00
CPC分类号： F25B9/008 , F25B47/022 , F25B2309/061 , F25B2339/047 , F25B2400/0403 , F25B2700/11
摘要： Refrigerant is circulated through a vapor compression system including a compressor, a gas cooler, an expansion device, and an evaporator. When a sensor detects that frozen water droplets form on the evaporator, a valve positioned between the discharge of the compression and inlet of expansion device is opened. Refrigerant from the discharge of the compressor bypasses the gas cooler and enters the inlet of the expansion device. The high temperature refrigerant melts the frost on the evaporator. As the frost melts, the passage of the evaporator is opened to allow air to flow through the evaporator.
摘要翻译：制冷剂通过包括压缩机，气体冷却器，膨胀装置和蒸发器的蒸汽压缩系统循环。当传感器检测到在蒸发器上形成冷冻水滴时，打开位于膨胀装置的压缩和入口的排出口之间的阀。来自压缩机排放的制冷剂绕过气体冷却器并进入膨胀装置的入口。高温制冷剂使蒸发器上的霜冻。当霜熔化时，蒸发器的通道打开以允许空气流过蒸发器。

8. 发明申请

US20050155364A1 Energy-efficient heat pump water heater 有权
标题翻译：节能型热泵热水器
公开(公告)号：US20050155364A1
公开(公告)日：2005-07-21
申请号：US10760668
申请日：2004-01-20
申请人： Julio Concha , Tobias Sienel , Bryan Eisenhower
发明人： Julio Concha , Tobias Sienel , Bryan Eisenhower
IPC分类号： F24D19/10 , F25B9/00 , F25D17/00 , F25B27/00 , F25B39/04
CPC分类号： F25B9/008 , F24D19/1054 , F25B2309/061 , F25B2339/047 , F25B2700/21161
摘要： An energy-efficient heat pump water heating system determines whether to energize a heat pump by interpreting readings from one or temperature sensors based on two thresholds. The heat pump is energized if the detected temperature falls below a first threshold and de-energized when the detected temperature rises above a second threshold. The thresholds may correspond to outputs of two or more sensors. Using multiple temperature thresholds improves the temperature sensing capabilities of the system, thereby improving energy efficiency by matching heat pump operation with hot water demand more closely than previously known systems.
摘要翻译：节能型热泵水加热系统通过基于两个阈值解读来自一个或温度传感器的读数来确定是否对热泵通电。如果检测到的温度低于第一阈值，则热泵被激活，并且当检测到的温度升高到高于第二阈值时，热泵被断电。阈值可以对应于两个或更多个传感器的输出。使用多个温度阈值提高了系统的温度感测能力，从而通过将热泵操作与热水需求相匹配来提高能源效率，比以前已知的系统更为紧密。

9. 发明授权

US07225629B2 Energy-efficient heat pump water heater 有权
标题翻译：节能型热泵热水器
公开(公告)号：US07225629B2
公开(公告)日：2007-06-05
申请号：US10760668
申请日：2004-01-20
申请人： Julio Concha , Tobias Sienel , Bryan A. Eisenhower
发明人： Julio Concha , Tobias Sienel , Bryan A. Eisenhower
IPC分类号： F25D17/00 , F25B39/04 , F25B27/00
CPC分类号： F25B9/008 , F24D19/1054 , F25B2309/061 , F25B2339/047 , F25B2700/21161
摘要： An energy-efficient heat pump water heating system determines whether to energize a heat pump by interpreting readings from one or temperature sensors based on two thresholds. The heat pump is energized if the detected temperature falls below a first threshold and de-energized when the detected temperature rises above a second threshold. The thresholds may correspond to outputs of two or more sensors. Using multiple temperature thresholds improves the temperature sensing capabilities of the system, thereby improving energy efficiency by matching heat pump operation with hot water demand more closely than previously known systems.
摘要翻译：节能型热泵水加热系统通过基于两个阈值解读来自一个或温度传感器的读数来确定是否对热泵通电。如果检测到的温度低于第一阈值，则热泵被激活，并且当检测到的温度升高到高于第二阈值时，热泵被断电。阈值可以对应于两个或更多个传感器的输出。使用多个温度阈值提高了系统的温度感测能力，从而通过将热泵操作与热水需求相匹配来提高能源效率，比以前已知的系统更为紧密。

10. 发明申请

US20050132742A1 Vapor compression systems using an accumulator to prevent over-pressurization 失效
标题翻译：蒸汽压缩系统使用蓄能器来防止过度加压
公开(公告)号：US20050132742A1
公开(公告)日：2005-06-23
申请号：US10742037
申请日：2003-12-19
申请人： Tobias Sienel , Yu Chen
发明人： Tobias Sienel , Yu Chen
IPC分类号： F25B9/00 , F25B43/00 , F25B45/00
CPC分类号： F25B9/008 , F25B43/006 , F25B45/00 , F25B2309/061 , F25B2500/01 , Y10T29/49394
摘要： An accumulator acts as a buffer to prevent over-pressurization of the vapor compression system while inactive. By determining the maximum storage temperature and the maximum storage pressure a system will be subject to when inactive, a density of the refrigerant for the overall system can be calculated. Dividing the density by the mass of the refrigerant determines an optimal overall system volume. The volume of the components is subtracted from the overall system volume to calculate the optimal accumulator volume. The optimal accumulator volume is used to size the accumulator so that the accumulator has enough volume to prevent over-pressurization of the system when inactive.
摘要翻译：蓄能器作为缓冲器，以防止蒸汽压缩系统在不活动时过度加压。通过确定系统在不活动时将承受的最大存储温度和最大存储压力，可以计算整个系统的制冷剂密度。将密度除以制冷剂的质量确定最佳整体系统体积。从整个系统体积中减去组件的体积，以计算最佳累加器体积。最佳蓄能器体积用于对蓄能器进行大小调节，使得蓄能器具有足够的容积以防止系统在不活动时过度加压。

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