公开(公告)号：US5099655A

公开(公告)日：1992-03-31

申请号：US662957

申请日：1991-03-01

申请人： Raymond P. Arno ,  Scott C. Carnes

发明人： Raymond P. Arno ,  Scott C. Carnes

IPC分类号： F25B47/02 ,  F25B49/02 ,  G05D23/275

CPC分类号： G05D23/27537 ,  F25B47/022 ,  F25B49/022 ,  F25B2309/06

摘要： A halocarbon refrigeration system including a compressor, condenser, thermal expansion valve, control for the thermal expansion valve, shell evaporator, suction line between the shell evaporator and compressor, and a control evaporator in the suction line between the shell evaporator and the control for the thermal expansion valve, the control evaporator utilizing hot refrigerant gas from the compressor to heat the refrigerant in the suction line and thus expose the control for the thermal expansion valve to heated refrigerant which in turn causes the thermal expansion valve to admit more liquid refrigerant to the shell evaporator to cause it to operate in a fully flooded condition, the control evaporator also insuring vaporization of all the liquid in the suction line prior to its passage to the compressor. The refrigeration system also includes a hot loop circuit between the outlet of the compressor and the inlet thereof and a cold loop circuit between the outlet of the compressor and the evaporator to bypass the condenser and thus pass refrigerant from the compressor back to the compressor to thereby permit it to selectively operate in an unloaded condition in response to the load applied by the medium which is being cooled. A sensing element for controlling the unloading of a compressor including a finned tube for placement in firm heat conducting engagement within a tube of a shell evaporator and containing a thermocouple which senses either the temperature of fluid within the tube or the temperature of the refrigerant on the outside of the tube which is located within the evaporator, depending on the amount of fluid flowing through the tube.

摘要翻译： 一种卤代烃制冷系统，包括压缩机，冷凝器，热膨胀阀，用于热膨胀阀的控制，壳式蒸发器，壳式蒸发器和压缩机之间的吸入管线以及壳式蒸发器和控制器之间的吸入管线中的控制蒸发器 热膨胀阀，控制蒸发器利用来自压缩机的热的制冷剂气体来加热吸入管线中的制冷剂，从而将热膨胀阀的控制暴露于加热的制冷剂，这又使热膨胀阀将更多的液体制冷剂进入 壳体蒸发器使其在完全淹没状态下操作，控制蒸发器还在其通过压缩机之前确保吸入管线中的所有液体蒸发。 制冷系统还包括在压缩机的出口与其入口之间的热循环回路以及压缩机出口与蒸发器之间的冷循环回路以绕过冷凝器，从而将制冷剂从压缩机传回压缩机，由此 允许其响应于被冷却的介质施加的负载而在无负载条件下选择性地操作。 一种感测元件，用于控制包括翅片管的压缩机的卸载，用于放置在壳式蒸发器的管内的牢固的导热接合中，并且包含热电偶，其感测管内的流体的温度或制冷剂的温度 位于蒸发器内的管的外部，这取决于流过管的流体的量。

公开(公告)号：US5207072A

公开(公告)日：1993-05-04

申请号：US767237

申请日：1991-09-27

申请人： Raymond P. Arno ,  Scott C. Carnes

发明人： Raymond P. Arno ,  Scott C. Carnes

IPC分类号： F25B47/02 ,  F25B49/02 ,  G05D23/275

CPC分类号： F25B49/022 ,  F25B47/022 ,  F25B2309/06

摘要： A refrigeration system including a compressor, condenser, thermal expansion valve, control for the thermal expansion valve, shell evaporator, suction line between the shell evaporator and compressor, and a control evaporator in the suction line between the shell evaporator and the control for the thermal expansion valve utilizing hot refrigerant gas from the compressor to heat the refrigerant in the suction line. The refrigeration system also includes an unloading arrangement for the compressor. In one arrangement a hot loop circuit is located directly between the outlet of the compressor and the inlet thereof and a cold loop circuit is located between the outlet and inlet of the compressor and which includes the evaporator, and both loops bypass the condenser and thus pass refrigerant from the compressor back to the compressor to thereby permit it to selectively operate in an unloaded condition in response to the load applied by the medium which is being cooled. An alternate and preferred arrangement for unloading the compressor includes a loop circuit between the outlet of the compressor and the inlet thereof which passes through an auxiliary evaporator under the main evaporator to thereby bypass the condenser and thus unload it in response to the load applied by the medium being cooled.

摘要翻译： 一种制冷系统，包括压缩机，冷凝器，热膨胀阀，用于热膨胀阀的控制，壳式蒸发器，壳式蒸发器和压缩机之间的吸入管线以及壳体蒸发器和用于热量的控制器之间的吸入管线中的控制蒸发器 膨胀阀利用来自压缩机的热的制冷剂气体来加热吸入管线中的制冷剂。 制冷系统还包括用于压缩机的卸载装置。 在一种布置中，热循环回路直接位于压缩机的出口与其入口之间，并且冷回路电路位于压缩机的出口和入口之间，并且包括蒸发器，并且两个回路旁路冷凝器，从而通过 制冷剂从压缩机返回到压缩机，从而允许其响应于被冷却的介质施加的负载而选择性地在无负载状态下操作。 用于卸载压缩机的替代和优选布置包括在压缩机的出口和其入口之间的循环回路，其通过主蒸发器下的辅助蒸发器，从而绕过冷凝器，并因此响应于由 介质被冷却。

公开(公告)号：US5062571A

公开(公告)日：1991-11-05

申请号：US662961

申请日：1991-03-01

申请人： Raymond P. Arno ,  Scott C. Carnes

发明人： Raymond P. Arno ,  Scott C. Carnes

IPC分类号： F25B47/02 ,  F25B49/02 ,  G05D23/275

CPC分类号： G05D23/27537 ,  F25B47/022 ,  F25B49/022 ,  F25B2309/06

摘要： A sensing element for controlling the unloading of a compressor including a finned tube for placement in firm heat conducting engagement within a tube of a shell evaporator and containing a thermocouple which senses either the temperature of fluid within the tube or the temperature of the refrigerant on the outside of the tube which is located within the evaporator, depending on the amount of fluid flowing through the tube.

摘要翻译： 一种感测元件，用于控制包括翅片管的压缩机的卸载，用于放置在壳式蒸发器的管内的牢固的导热接合中，并且包含热电偶，其感测管内的流体的温度或制冷剂的温度 位于蒸发器内的管的外部，这取决于流过管的流体的量。