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公开(公告)号：US5477695A
公开(公告)日：1995-12-26
申请号：US369443
申请日：1995-01-06
CPC分类号： F25B27/00 , F01P3/20 , F25B29/003 , F25B31/006 , F25B5/00 , F01P2060/04 , F01P2060/14 , F25B2400/13
摘要： A refrigeration system of the type having an economizer cycle is provided with a null cycle, in addition to heating and cooling cycles, without shutting a compressor prime mover down, to preserve air flow in a conditioned space. First, second and third controllable valves respectively: (1) select main and auxiliary condensers, (2) open and close a liquid line, and (3) open and close a line which provides a warm liquid to an economizer heat exchanger. The valves are controlled in at least one predetermined open/close pattern during a null cycle, and preferably in a plurality of selectable predetermined open/close patterns, to provide a null cycle at any instant which substantially matches the net heat gain or loss taking place in the conditioned space. Thus, the temperature of the served space will be more apt to remain in a null temperature range close to set point, providing smoother and more accurate control over the temperature of the conditioned space for longer shelf life of perishables stored therein. The system achieves the latter by controlling cooling circulation in the compressor oil cooler.
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2.发明授权Methods and apparatus for operating a refrigeration system characterized by controlling engine coolant 失效用于操作制冷系统的方法和装置，其特征在于控制发动机冷却剂
公开(公告)号：US5465586A
公开(公告)日：1995-11-14
申请号：US369432
申请日：1995-01-06
CPC分类号： F25B27/00 , F01P3/20 , F25B29/003 , F25B31/006 , F25B5/00 , F01P2060/04 , F01P2060/14 , F25B2400/13
摘要： A refrigeration system of the type having an economizer cycle is provided with a null cycle, in addition to heating and cooling cycles, without shutting a compressor prime mover down, to preserve air flow in a conditioned space. First, second and third controllable valves respectively: (1) select main and auxiliary condensers, (2) open and close a liquid line, and (3) open and close a line which provides a warm liquid to an economizer heat exchanger. The valves are controlled in at least one predetermined open/close pattern during a null cycle, and preferably in a plurality of selectable predetermined open/close patterns, to provide a null cycle at any instant which substantially matches the net heat gain or loss taking place in the conditioned space. Thus, the temperature of the served space will be more apt to remain in a null temperature range close to set point, providing smoother and more accurate control over the temperature of the conditioned space for longer shelf life of perishables stored therein. The system achieves the latter by controlling cooling circulation in the compressor oil cooler.
摘要翻译： 具有省煤器循环的类型的制冷系统除了加热和冷却循环之外还提供零循环，而不关闭压缩机原动机，以保持调节空间中的气流。 第一，第二和第三个可控阀门：（1）选择主冷凝器和辅助冷凝器，（2）打开和关闭液体管线，（3）打开和关闭向节能换热器提供暖液体的管线。 在空循环期间，并且优选以多个可选择的预定打开/关闭模式，阀被控制在至少一个预定的打开/关闭模式，以在与实际匹配的净热增益或损失发生的任何瞬间提供零循环 在空调空间。 因此，被处理空间的温度将更加容易地保持在接近设定点的零点温度范围内，从而为存储在其中的易腐品的更长的保存期限提供了对调节空间的温度的更平滑和更精确的控制。 该系统通过控制压缩机油冷却器中的冷却循环来实现后者。
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公开(公告)号：US5408836A
公开(公告)日：1995-04-25
申请号：US182319
申请日：1994-01-14
CPC分类号： F25B27/00 , F01P3/20 , F25B29/003 , F25B31/006 , F25B5/00 , F01P2060/04 , F01P2060/14 , F25B2400/13
摘要： A refrigeration system of the type having an economizer cycle is provided with a null cycle, in addition to heating and cooling cycles, without shutting a compressor prime mover down, to preserve air flow in a conditioned space. First, second and third controllable valves respectively: (1) select main and auxiliary condensers, (2) open and close a liquid line, and (3) open and close a line which provides a warm liquid to an economizer heat exchanger. The valves are controlled in at least one predetermined open/close pattern during a null cycle, and preferably in a plurality of selectable predetermined open/close patterns, to provide a null cycle at any instant which substantially matches the net heat gain or loss taking place in the conditioned space. Thus, the temperature of the served space will be more apt to remain in a null temperature range close to set point, providing smoother and more accurate control over the temperature of the conditioned space for longer shelf life of perishables stored therein. The system achieves the latter by controlling cooling circulation in the compressor oil cooler.
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公开(公告)号：US5465587A
公开(公告)日：1995-11-14
申请号：US369444
申请日：1995-01-06
CPC分类号： F25B27/00 , F01P3/20 , F25B29/003 , F25B31/006 , F25B5/00 , F01P2060/04 , F01P2060/14 , F25B2400/13
摘要： A refrigeration system of the type having an economizer cycle is provided with a null cycle, in addition to heating and cooling cycles, without shutting a compressor prime mover down, to preserve air flow in a conditioned space. First, second and third controllable valves respectively: (1) select main and auxiliary condensers, (2) open and close a liquid line, and (3) open and close a line which provides a warm liquid to an economizer heat exchanger. The valves are controlled in at least one predetermined open/close pattern during a null cycle, and preferably in a plurality of selectable predetermined open/close patterns, to provide a null cycle at any instant which substantially matches the net heat gain or loss taking place in the conditioned space. Thus, the temperature of the served space will be more apt to remain in a null temperature range close to set point, providing smoother and more accurate control over the temperature of the conditioned space for longer shelf life of perishables stored therein. The system achieves the latter by controlling cooling circulation in the compressor oil cooler.
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公开(公告)号：US5228301A
公开(公告)日：1993-07-20
申请号：US919799
申请日：1992-07-27
申请人： Lars I. Sjoholm , Peter W. Freund , Sung L. Kwon , Lowell B. Naley , Lee J. Erickson , David H. Taylor
发明人： Lars I. Sjoholm , Peter W. Freund , Sung L. Kwon , Lowell B. Naley , Lee J. Erickson , David H. Taylor
CPC分类号： F25B27/00 , B60H1/00007 , F25B29/003 , F25B41/04 , F25D17/02 , F25B2400/13
摘要： A refrigeration system of the type having an economizer cycle is provided with a null cycle, in addition to heating and cooling cycles, without shutting a compressor prime mover down, to preserve air flow in a conditioned space. First, second and third controllable valves respectively: (1) select main and auxiliary condensers, (2) open and close a liquid line, and (3) open and close a line which provides a warm liquid to an economizer heat exchanger. The valves are controlled in at least one predetermined open/close pattern during a null cycle, and preferably in a plurality of selectable predetermined open/close patterns, to provide a null cycle at any instant which substantially matches the net heat gain or loss taking place in the conditioned space. Thus, the temperature of the served space will be more apt to remain in a null temperature range close to set point, providing smoother and more accurate control over the temperature of the conditioned space for longer shelf life of perishables stored therein.
摘要翻译： 具有省煤器循环的类型的制冷系统除了加热和冷却循环之外还提供零循环，而不关闭压缩机原动机，以保持调节空间中的气流。 第一，第二和第三个可控阀门：（1）选择主冷凝器和辅助冷凝器，（2）打开和关闭液体管线，（3）打开和关闭向节能换热器提供暖液体的管线。 在空循环期间，并且优选以多个可选择的预定打开/关闭模式，阀被控制在至少一个预定的打开/关闭模式，以在与实际匹配的净热增益或损失发生的任何瞬间提供零循环 在空调空间。 因此，被处理空间的温度将更加容易地保持在接近设定点的零点温度范围内，从而为存储在其中的易腐品的更长的保存期限提供了对调节空间的温度的更平滑和更精确的控制。
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公开(公告)号：US5410889A
公开(公告)日：1995-05-02
申请号：US182318
申请日：1994-01-14
CPC分类号： F25B49/02 , F25B27/00 , F25B29/003 , F25B5/00 , F25B1/10 , F25B2400/13
摘要： A refrigeration system of the type having an economizer cycle is provided with a null cycle, in addition to heating and cooling cycles, without shutting a compressor prime mover down, to preserve air flow in a conditioned space. First, second and third controllable valves respectively: (1) select main and auxiliary condensers, (2) open and close a liquid line, and (3) open and close a line which provides a warm liquid to an economizer heat exchanger. The valves are controlled in at least one predetermined open/close pattern during a null cycle, and preferably in a plurality of selectable predetermined open/close patterns, to provide a null cycle at any instant which substantially matches the net heat gain or loss taking place in the conditioned space. Thus, the temperature of the served space will be more apt to remain in a null temperature range close to set point, providing smoother and more accurate control over the temperature of the conditioned space for longer shelf life of perishables stored therein. The system achieves the latter by controlling a bypass value according to the load of the compressor.
摘要翻译： 具有省煤器循环的类型的制冷系统除了加热和冷却循环之外还提供零循环，而不关闭压缩机原动机，以保持调节空间中的气流。 第一，第二和第三个可控阀门：（1）选择主冷凝器和辅助冷凝器，（2）打开和关闭液体管线，（3）打开和关闭向节能换热器提供暖液体的管线。 在空循环期间，并且优选以多个可选择的预定打开/关闭模式，阀被控制在至少一个预定的打开/关闭模式，以在与实际匹配的净热增益或损失发生的任何瞬间提供零循环 在空调空间。 因此，被处理空间的温度将更加容易地保持在接近设定点的零点温度范围内，从而为存储在其中的易腐品的更长的保存期限提供了对调节空间的温度的更平滑和更精确的控制。 该系统通过根据压缩机的负载控制旁路值来实现后者。
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7.发明授权Methods and apparatus for operating a refrigeration system characterized by controlling maximum operating pressure 失效用于操作制冷系统的方法和装置，其特征在于控制最大工作压力
公开(公告)号：US5400609A
公开(公告)日：1995-03-28
申请号：US182912
申请日：1994-01-14
申请人： Lars I. Sjoholm , Sung L. Kwon , Lee J. Erickson
发明人： Lars I. Sjoholm , Sung L. Kwon , Lee J. Erickson
CPC分类号： F25B40/00 , F25B27/00 , F25B29/003 , F25B49/022 , F25B2400/13 , F25B2600/2513
摘要： A refrigeration system of the type having an economizer cycle is provided with a null cycle, in addition to heating and cooling cycles, without shutting a compressor prime mover down, to preserve air flow in a conditioned space. First, second and third controllable valves respectively: (1) select main and auxiliary condensers, (2) open and close a liquid line, and (3) open and close a line which provides a warm liquid to an economizer heat exchanger. The valves are controlled in at least one predetermined open/close pattern during a null cycle, and preferably in a plurality of selectable predetermined open/close patterns, to provide a null cycle at any instant which substantially matches the net heat gain or loss taking place in the conditioned space. Thus, the temperature of the served space will be more apt to remain in a null temperature range close to set point, providing smoother and more accurate control over the temperature of the conditioned space for longer shelf life of perishables stored therein. The system achieves the latter by controlling maximum operating pressure.
摘要翻译： 具有省煤器循环的类型的制冷系统除了加热和冷却循环之外还提供零循环，而不关闭压缩机原动机，以保持调节空间中的气流。 第一，第二和第三个可控阀门：（1）选择主冷凝器和辅助冷凝器，（2）打开和关闭液体管线，（3）打开和关闭向节能换热器提供暖液体的管线。 在空循环期间，并且优选以多个可选择的预定打开/关闭模式，阀被控制在至少一个预定的打开/关闭模式，以在与实际匹配的净热增益或损失发生的任何瞬间提供零循环 在空调空间。 因此，被处理空间的温度将更加容易地保持在接近设定点的零点温度范围内，从而为存储在其中的易腐品的更长的保存期限提供了对调节空间的温度的更平滑和更精确的控制。 该系统通过控制最大工作压力来实现后者。
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公开(公告)号：US09062903B2
公开(公告)日：2015-06-23
申请号：US13345844
申请日：2012-01-09
CPC分类号： F25B1/00 , F25B41/04 , F25B47/022 , F25B2400/0403 , F25B2400/0411 , F25B2400/054 , F25B2400/13 , F25B2400/16 , F25B2500/27 , F25B2600/2501 , F25B2600/2507
摘要： A refrigeration system having a cooling circuit, a heating circuit, a pressurizing receiver tank circuit, a pilot circuit and a liquid injection circuit wherein the hot gas line includes a solenoid valve that connects an outlet of a compressor to an outlet of a receiver tank, and wherein the liquid injection circuit includes a liquid injection solenoid that connects the outlet of the receiver tank to an outlet of an economizer.
摘要翻译： 一种具有冷却回路，加热回路，加压接收器箱回路，先导回路和液体注入回路的制冷系统，其中，所述热气管线包括将压缩机的出口连接到接收罐的出口的电磁阀， 并且其中所述液体注入回路包括将所述接收罐的出口连接到节能器的出口的液体注入螺线管。
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公开(公告)号：US06718781B2
公开(公告)日：2004-04-13
申请号：US09903252
申请日：2001-07-11
申请人： Peter W. Freund , Lars I. Sjoholm
发明人： Peter W. Freund , Lars I. Sjoholm
IPC分类号： F25B500
CPC分类号： F25B49/02 , F25B2341/065 , F25B2400/13 , F25B2600/2509 , F25B2600/2513 , F25B2700/1931 , F25B2700/1933 , F25B2700/2101 , F25B2700/2115 , F25B2700/21151 , F25B2700/21152 , F25B2700/2117 , Y02B30/72
摘要： A method for controlling at least one electronic expansion valve coupled to an economizer in a refrigeration system in order to dynamically control the refrigeration system operating conditions and in order to accommodate more than one set of operating conditions. The system can also be used to control the capacity of the system. More specifically, the method can include determining the required capacity of the system and adjusting the flow of refrigerant through the electronic expansion valve to adjust the actual capacity of the system toward the required capacity of the system. In another aspect of the invention, the system is operated to maintain the power of the system below a threshold value (e.g., below a max rated horsepower). This method includes determining the power required to operate the compressor based on the measurement of system parameters; comparing the power required to a threshold value; and adjusting the flow of refrigerant through the electronic expansion valve in order to keep the power required below the threshold value. In yet another aspect of the invention, the system is operated in order to prevent overheating of the compressor. More specifically, the flow of refrigerant from the heat exchanger to the compressor can be adjusted so that some amount of liquid refrigerant is provided to quench the compressor.
摘要翻译： 一种用于控制联接到制冷系统中的节能器的至少一个电子膨胀阀的方法，以便动态地控制制冷系统的运行状况并且为了适应一套以上的运行条件。 该系统也可用于控制系统的容量。 更具体地，该方法可以包括确定系统的所需容量并调节通过电子膨胀阀的制冷剂流量，以将系统的实际容量调整到系统的所需容量。 在本发明的另一方面，系统被操作以将系统的功率维持在阈值以下（例如，低于最大额定功率）。 该方法包括基于系统参数的测量确定操作压缩机所需的功率; 将所需的功率与阈值进行比较; 并且通过电子膨胀阀调节制冷剂的流量，以将所需的功率保持在阈值以下。 在本发明的另一方面，为了防止压缩机的过热而操作该系统。 更具体地，可以调节从热交换器到压缩机的制冷剂流，使得设置一定量的液体制冷剂来使压缩机骤冷。
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10.发明授权Refrigeration system and method utilizing combined economizer and engine coolant heat exchanger 失效采用联合节能器和发动机冷却剂换热器的制冷系统和方法
公开(公告)号：US5598718A
公开(公告)日：1997-02-04
申请号：US502043
申请日：1995-07-13
CPC分类号： B60H1/3232 , B60H1/00914 , F25D29/003 , B60H2001/00942 , B60H2001/00949 , B60H2001/00957
摘要： A transport refrigeration system for heating and cooling a conditioned space is provided that includes an improved, combined heat exchanger and economizer for increasing the efficiency of the refrigeration cycle. The system includes a refrigerant compressor driven by an internal combustion engine that includes suction and discharge ports, and an intermediate pressure port; a refrigeration circuit including a heating coil and evaporator assembly thermally connected to the conditioned space, and a mode valve for selectively routing the refrigerant through either the heating coil or the evaporator assembly via a condenser to heat or cool the conditioned space, respectively. The combined heat exchanger and economizer includes a tube connected to the intermediate suction port of the compressor, a shell for conducting refrigerant to the evaporator assembly depending upon the position of the mode valve, and a jacket for circulating engine coolant. During the heating mode of the system, a volume of refrigerant is maintained in the shell of the combined heat exchanger and economizer to act as a thermal buffer for heat transferred between engine coolant circulating through the jacket, and refrigerant flowing through the tube of the device.
摘要翻译： 提供了一种用于加热和冷却调节空间的运输制冷系统，其包括改进的组合热交换器和节能器，用于提高制冷循环的效率。 该系统包括由包括吸入口和排出口的内燃机驱动的制冷剂压缩机和中间压力口; 包括与调节空间热连接的加热线圈和蒸发器组件的制冷回路，以及用于通过冷凝器选择性地将制冷剂通过加热线圈或蒸发器组件路由选择性地将加热或冷却调节空间的模式阀。 组合的热交换器和节能器包括连接到压缩机的中间吸入口的管，根据模式阀的位置将制冷剂传导到蒸发器组件的外壳和用于循环发动机冷却剂的护套。 在系统的加热模式期间，在组合的热交换器和节能器的壳体中保持一定体积的制冷剂，以作为在通过套管循环的发动机冷却剂之间传递的热传递的热缓冲器和流过该装置的管的制冷剂 。
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