公开(公告)号：US20060064995A1

公开(公告)日：2006-03-30

申请号：US10957181

申请日：2004-09-30

申请人： Philippe Rigal ,  Ba-Tung Pham ,  Pierre Delpech

发明人： Philippe Rigal ,  Ba-Tung Pham ,  Pierre Delpech

IPC分类号： F25B45/00

CPC分类号： F25B45/00 ,  F25B6/00 ,  F25B49/005 ,  F25B2400/0403 ,  F25B2400/16 ,  F25B2400/19 ,  F25B2600/2523 ,  F25B2700/21163

摘要： An apparatus for managing refrigerant charge in an air conditioning unit comprising a cooling circuit through which a refrigerant flows from a compressor, through a condenser, and through an evaporator, a heat recovery circuit extending from a first terminus between the compressor and the condenser to a second terminus between the evaporator and the condenser, a heat recovery unit located between the first and second terminus of the heat recovery circuit, a first valve located between the condenser and the first terminus, a second valve located between the first terminus and the heat recovery unit, a third valve located on a cooling charge circuit having a first end on the cooling circuit between the condenser and the evaporator and a second end at the evaporator, a fourth valve located on a heating charge circuit having a first end on the heat recovery circuit and a second end at the evaporator, and a logic unit for sensing a saturated temperature and opening and closing the valves based upon the saturated temperature to manage the refrigerant charge.

摘要翻译： 一种用于管理空调单元中的制冷剂装料的装置，包括冷却回路，制冷剂通过冷却回路从压缩机流过冷凝器，并通过蒸发器，从所述压缩机和冷凝器之间的第一端部延伸到 位于蒸发器和冷凝器之间的第二终端，位于热回收回路的第一和第二末端之间的热回收单元，位于冷凝器和第一终端之间的第一阀，位于第一末端和热回收之间的第二阀 单元，位于冷却充电回路上的第三阀，其具有在冷凝器和蒸发器之间的冷却回路上的第一端和位于蒸发器处的第二端，位于加热充电回路上的第四阀，其具有热回收的第一端 电路和蒸发器的第二端，以及用于感测饱和温度并打开和关闭阀门的逻辑单元 考虑饱和温度来控制制冷剂充注。

公开(公告)号：US06997003B2

公开(公告)日：2006-02-14

申请号：US10877400

申请日：2004-06-25

申请人： Michal K. Grabon ,  Ba-Tung Pham

发明人： Michal K. Grabon ,  Ba-Tung Pham

IPC分类号： F25B5/00 ,  F25B49/02

CPC分类号： F25B49/022 ,  F25B49/027 ,  F25B2400/075 ,  F25B2600/0251 ,  F25B2700/21151 ,  F25B2700/21163 ,  Y10S62/17

摘要： A method for controlling load capacity in an air conditioning unit comprising the steps of initializing a saturated condensing temperature upper bound (SCT_UP), comparing a saturated condensing temperature (SCT) to a maximum condensing temperature threshold (MCT_TH), unloading a single load capacity step, allowing the air conditioning unit to stabilize, and setting the SCT_UP equal to the SCT after the unloading, and increasing the load capacity by one capacity step if increased load capacity is required, the SCT is less than or equal to the MCT_TH, and the SCT

摘要翻译： 一种用于控制空调单元中的负载能力的方法，包括以下步骤：初始化饱和冷凝温度上限（SCT_UP），将饱和冷凝温度（SCT）与最大冷凝温度阈值（MCT_TH）进行比较，卸载单个负载容量步骤 ，允许空调机组稳定，并在卸载后将SCT_UP设定为与SCT相同，如果需要增加负载能力，则将负载能力提高一个容量步长，SCT小于或等于MCT_TH， SCT

公开(公告)号：US06318101B1

公开(公告)日：2001-11-20

申请号：US09526045

申请日：2000-03-15

申请人： Ba-Tung Pham ,  Cretin Pascal

发明人： Ba-Tung Pham ,  Cretin Pascal

IPC分类号： F25B404

CPC分类号： F25B41/062 ,  F25B2341/065 ,  F25B2700/21152 ,  Y02B30/72

摘要： An electronic expansion valve (EXV) used in a refrigeration cycle for a heat pump or chiller is controlled to maintain minimum pinch for ensuring proper flooded cooler exchange performance by monitoring the delta temperature between the cooler fluid and the saturated suction temperature. The discharge superheat is monitored to protect the compressor from liquid slugging. If the discharge superheat is lower than the expected value, the EXV opening is adjusted. A controller monitors certain system variables which are used to determine the optimal position of the EXV to optimize the system performance, the proper discharge superheat value, and the appropriate refrigerant charge.

摘要翻译： 控制用于热泵或冷却器的制冷循环中的电子膨胀阀（EXV），以通过监测冷却器流体和饱和吸入温度之间的差值温度来保持最小的夹紧，以确保适当的溢流冷却器交换性能。 监控排放过热，以保护压缩机免受液体堵塞。 如果放电过热度低于预期值，则调节EXV开度。 控制器监视某些系统变量，用于确定EXV的最佳位置以优化系统性能，适当的排放过热值和适当的制冷剂装料量。

公开(公告)号：US20050284165A1

公开(公告)日：2005-12-29

申请号：US10877400

申请日：2004-06-25

申请人： Michal Grabon ,  Ba-Tung Pham

发明人： Michal Grabon ,  Ba-Tung Pham

IPC分类号： F25B1/00 ,  F25B27/00 ,  F25B49/00 ,  F25B49/02

CPC分类号： F25B49/022 ,  F25B49/027 ,  F25B2400/075 ,  F25B2600/0251 ,  F25B2700/21151 ,  F25B2700/21163 ,  Y10S62/17

摘要： A method for controlling load capacity in an air conditioning unit comprising the steps of initializing a saturated condensing temperature upper bound (SCT_UP), comparing a saturated condensing temperature (SCT) to a maximum condensing temperature threshold (MCT_TH), unloading a single load capacity step, allowing the air conditioning unit to stabilize, and setting the SCT_UP equal to the SCT after the unloading, and increasing the load capacity by one capacity step if increased load capacity is required, the SCT is less than or equal to the MCT_TH, and the SCT

摘要翻译： 一种用于控制空调单元中的负载能力的方法，包括以下步骤：初始化饱和冷凝温度上限（SCT_UP），将饱和冷凝温度（SCT）与最大冷凝温度阈值（MCT_TH）进行比较，卸载单个负载容量步骤 ，允许空调机组稳定，并在卸载后将SCT_UP设定为与SCT相同，如果需要增加负载能力，则将负载能力提高一个容量步长，SCT小于或等于MCT_TH， SCT

公开(公告)号：US20090120110A1

公开(公告)日：2009-05-14

申请号：US11576316

申请日：2005-09-30

申请人： Michel K. Grabon ,  Ba-Tung Pham ,  Philippe Rigal ,  Pierre Delpech

发明人： Michel K. Grabon ,  Ba-Tung Pham ,  Philippe Rigal ,  Pierre Delpech

IPC分类号： F25B1/00 ,  F25D15/00

CPC分类号： F24D17/02 ,  F25B6/00 ,  F25B45/00 ,  F25B2339/047 ,  F25B2400/0403 ,  F25B2400/06 ,  F25B2400/19 ,  F25B2700/21163

摘要： A method for providing controllable amounts of heat recovery from a refrigerant circuit includes the steps of providing a cooling circuit comprising a compressor, a condenser, an expansion device and an evaporator connected in series by refrigerant flow lines; providing a heat recovery circuit comprising a heat recovery heat exchanger, the heat recovery circuit being connected to the cooling circuit so that the heat recovery heat exchanger is in parallel with the condenser, and the heat recovery heat exchanger being in heat exchange relationship with a fluid to be heated based upon an end-user demand for heat; and selectively flowing refrigerant through the condenser of the cooling circuit and the heat recovery heat exchanger of the heat recovery circuit so as to maintain temperature of the fluid within a temperature hand around a set point provided by the end user.

摘要翻译： 一种用于从制冷剂回路提供可控量的热回收的方法包括以下步骤：提供包括压缩机，冷凝器，膨胀装置和通过制冷剂流动线串联连接的蒸发器的冷却回路; 提供包括热回收热交换器的热回收回路，所述热回收回路连接到所述冷却回路，使得所述热回收热交换器与所述冷凝器并联，并且所述热回收热交换器与流体处于热交换关系 基于终端用户的热量加热; 并且选择性地使制冷剂流过冷却回路的冷凝器和热回收回路的热回收热交换器，以将流体的温度保持在由最终用户提供的设定点内的温度范围内。

公开(公告)号：US07237394B2

公开(公告)日：2007-07-03

申请号：US10957181

申请日：2004-09-30

申请人： Philippe Rigal ,  Ba-Tung Pham ,  Pierre Delpech

发明人： Philippe Rigal ,  Ba-Tung Pham ,  Pierre Delpech

IPC分类号： F25B45/00

CPC分类号： F25B45/00 ,  F25B6/00 ,  F25B49/005 ,  F25B2400/0403 ,  F25B2400/16 ,  F25B2400/19 ,  F25B2600/2523 ,  F25B2700/21163

摘要： An apparatus for managing refrigerant charge in an air conditioning unit comprising a cooling circuit through which a refrigerant flows from a compressor, through a condenser, and through an evaporator, a heat recovery circuit extending from a first terminus between the compressor and the condenser to a second terminus between the evaporator and the condenser, a heat recovery unit located between the first and second terminus of the heat recovery circuit, a first valve located between the condenser and the first terminus, a second valve located between the first terminus and the heat recovery unit, a third valve located on a cooling charge circuit having a first end on the cooling circuit between the condenser and the evaporator and a second end at the evaporator, a fourth valve located on a heating charge circuit having a first end on the heat recovery circuit and a second end at the evaporator, and a logic unit for sensing a saturated temperature and opening and closing the valves based upon the saturated temperature to manage the refrigerant charge.

摘要翻译： 一种用于管理空调单元中的制冷剂装料的装置，包括冷却回路，制冷剂通过冷却回路从压缩机流过冷凝器，并通过蒸发器，从所述压缩机和冷凝器之间的第一端部延伸到 位于蒸发器和冷凝器之间的第二终端，位于热回收回路的第一和第二末端之间的热回收单元，位于冷凝器和第一终端之间的第一阀，位于第一末端和热回收之间的第二阀 单元，位于冷却充电回路上的第三阀，其具有在冷凝器和蒸发器之间的冷却回路上的第一端和位于蒸发器处的第二端，位于加热充电回路上的第四阀，其具有热回收的第一端 电路和蒸发器的第二端，以及用于感测饱和温度并打开和关闭阀门的逻辑单元 考虑饱和温度来控制制冷剂充注。

公开(公告)号：US06711911B1

公开(公告)日：2004-03-30

申请号：US10301042

申请日：2002-11-21

申请人： Michel K. Grabon ,  Philippe Rigal ,  Ba-Tung Pham

发明人： Michel K. Grabon ,  Philippe Rigal ,  Ba-Tung Pham

IPC分类号： F25B4104

CPC分类号： F25B41/062 ,  F25B2341/0653 ,  F25B2400/075 ,  F25B2500/19 ,  F25B2600/2513 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/21152 ,  Y02B30/72

摘要： An expansion valve is controlled in response to sensing conditions at the outlet of at least one compressor within a refrigeration loop in a manner that achieves low suction superheat operation of the compressor. In particular, a discharge superheat is computed using data obtained from a specific mathematical model of the compression process corresponding to the current capacity stage of the compressor. The position of the expansion valve is controlled so as to result in an actual discharge superheat being within a predetermined dead band amount of the computed discharge superheat.

摘要翻译： 响应于制冷回路内的至少一个压缩机的出口处的感测条件，以实现压缩机的低抽吸过热操作的方式来控制膨胀阀。 特别地，使用从与压缩机的当前容量级对应的压缩过程的特定数学模型获得的数据来计算放电过热。 控制膨胀阀的位置，使得实际的排放过热度在计算出的排放过热度的预定的死区内。