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1. 发明授权

US5033271A Refrigerant recovery and purification system 失效
标题翻译：制冷剂回收和净化系统
公开(公告)号：US5033271A
公开(公告)日：1991-07-23
申请号：US577336
申请日：1990-09-04
申请人： Kenneth W. Manz , Roger D. Shirley
发明人： Kenneth W. Manz , Roger D. Shirley
IPC分类号： F25B45/00
CPC分类号： F25B45/00 , F25B2345/0052 , Y02B30/52
摘要： A refrigerant recovery system which includes a compressor having an input coupled through an evaporator and through a solenoid valve to the refrigeration system from which refrigerant is to be withdrawn, and an output coupled through a condenser to a refrigerant storage container. The evaporator and condenser are contained within a closed cylindrical canister for heat exchange and oil separation, the canister having an oil drain valve in the bottom. The refrigerant storage container is carried by a scale having a limit switch coupled to control electronics to prevent or terminate further refrigerant recovery when the container is full. The entire system, including the control electronics, is mounted on a two-wheel hand truck to facilitate transport to a job site such as a building air conditioning or heat pump system. Apparatus for purifying recovered refrigerant includes a replaceable core filter/dryer, and a liquid pump for circulating refrigerant from the liquid port of the storage container through the core and then to the container vapor port. A differential pressure gauge is connected across the filter/dryer to indicate need for core replacement. A moisture indicator displays water concentration in the refrigerant. The purification apparatus may be either separate from or combined with the recovery system.
摘要翻译：一种制冷剂回收系统，其包括压缩机，该压缩机具有通过蒸发器连接的输入端，并且通过电磁阀连接至制冷系统，制冷剂将从该制冷系统中排出，以及通过冷凝器联接到制冷剂储存容器的输出。蒸发器和冷凝器容纳在用于热交换和油分离的封闭的圆筒形罐中，该罐在底部具有排油阀。制冷剂储存容器由具有与控制电子装置连接的限位开关的标尺承载，以防止或终止当容器充满时进一步的制冷剂回收。整个系统，包括控制电子装置，安装在两轮手推车上，便于运输到工地，如建筑空调或热泵系统。用于净化回收的制冷剂的装置包括可更换的芯过滤器/干燥器和液体泵，用于使制冷剂从存储容器的液体端口通过核心再循环到容器蒸气端口。差压表连接在过滤器/干燥器上，以指示需要更换核心。湿度指示器显示制冷剂中的水分浓度。净化装置可以与回收系统分离或与回收系统组合。

2. 发明授权

US4805416A Refrigerant recovery, purification and recharging system 失效
标题翻译：制冷剂回收，净化和充电系统
公开(公告)号：US4805416A
公开(公告)日：1989-02-21
申请号：US157579
申请日：1988-02-19
申请人： Kenneth W. Manz , Roger D. Shirley , Richard D. Parks , Dennis W. Hickman
发明人： Kenneth W. Manz , Roger D. Shirley , Richard D. Parks , Dennis W. Hickman
IPC分类号： F25B45/00
CPC分类号： F25B45/00 , F25B2345/001 , F25B2345/002 , F25B2345/007
摘要： A system for recovering, purifying and recharging refrigerant in a refrigeration system comprises a refrigerant compressor having an input connected through an evaporator and a recovery control valve to a refrigeration system from which refrigerant is to be recovered, purified and recharged. A condenser is connected to the output of the compressor in heat exchange relation with the evaporator for liquifying refrigerant from the compressor output. Refrigerant liquified in the condenser is fed to a first port of a refrigerant storage container. During a purification cycle, refrigerant is circulated from a second port of the refrigerant storage container in a closed path through a circulation valve and a filter for removing water and other contaminants, and then returned to the first container port. The refrigeration system from which refrigerant has been recovered is evacuated to atmosphere through a vacuum valve. Following such evacuation, the second port of the refrigerant storage container is connected through a recharging valve to the refrigeration of system for feeding refrigerant from the storage container to the refrigeration system, and thereby recharging the refrigeration system for normal use.
摘要翻译：用于在制冷系统中回收，净化和补充制冷剂的系统包括制冷剂压缩机，其具有通过蒸发器连接的输入端和回收控制阀，该制冷剂压缩机将制冷剂从其回收，净化和再充电。冷凝器与蒸发器以热交换关系连接到压缩机的输出端，用于从压缩机输出液化制冷剂。在冷凝器中液化的制冷剂被供给到制冷剂储存容器的第一端口。在净化循环期间，制冷剂从制冷剂储存容器的第二端口以闭合路径循环通过循环阀和用于除去水和其它污染物的过滤器，然后返回到第一容器口。已经回收制冷剂的制冷系统通过真空阀抽空到大气中。在这样的抽空之后，制冷剂储存容器的第二端口通过再充电阀连接到用于将制冷剂从储存容器输送到制冷系统的系统的制冷器，从而对正常使用的制冷系统进行再充电。

3. 发明授权

US4768347A Refrigerant recovery and purification system 失效
标题翻译：制冷剂回收和净化系统
公开(公告)号：US4768347A
公开(公告)日：1988-09-06
申请号：US117098
申请日：1987-11-04
申请人： Kenneth W. Manz , Roger D. Shirley
发明人： Kenneth W. Manz , Roger D. Shirley
IPC分类号： F25B43/00 , F25B45/00
CPC分类号： F25B45/00 , F25B2345/001 , F25B2345/002 , F25B2345/0052 , F25B2345/007 , Y10T137/7761
摘要： A refrigerant recovery system which includes a compressor having an input coupled through an evaporator and through a solenoid valve to the refrigeration system from which refrigerant is to be withdrawn, and an output coupled through a condenser to a refrigerant storage container. The evaporator and condenser are contained within a closed cylindrical canister for heat exchange and oil separation, the canister having an oil drain valve in the bottom. The refrigerant storage container is carried by a scale having a limit switch coupled to control electronics to prevent or terminate further refrigerant recovery when the container is full. The entire system, including the control electronics, is mounted on a two-wheel hand truck to facilitate transport to a job site such as a building air conditioning or heat pump system. Apparatus for purifying recovered refrigerant includes a replaceable core filter/dryer, and a liquid pump for circulating refrigerant from the liquid port of the storage container through the core and then to the container vapor port. A differential pressure gauge is connected across the filter/dryer to indicate need for core replacement. A moisture indicator displays water concentration in the refrigerant. The purification apparatus may be either separate from or combined with the recovery system.

4. 发明授权

US5493869A Recovery of at least two different and incompatible refrigerant types 失效
标题翻译：回收至少两种不同和不相容的制冷剂类型
公开(公告)号：US5493869A
公开(公告)日：1996-02-27
申请号：US357929
申请日：1994-12-16
申请人： Roger D. Shirley , Gary P. Murray , Kenneth W. Manz
发明人： Roger D. Shirley , Gary P. Murray , Kenneth W. Manz
IPC分类号： F17C9/00 , F25B45/00
CPC分类号： B60H1/00585 , F17C9/00 , F25B45/00 , F17C2205/013 , F17C2205/0326 , F17C2205/0335 , F17C2205/0341 , F17C2221/038 , F17C2227/0135 , F17C2227/044 , F17C2250/032 , F17C2265/012 , F25B2345/002 , F25B2345/004
摘要： A system for recovering at least two different and incompatible types of refrigerant that includes a compressor having an inlet for connection through first and second parallel inlet paths to equipment under service, and an outlet for connection through first and second parallel outlet paths to refrigerant storage containers. The first inlet and outlet paths terminate in connector fittings of a first configuration, and the second inlet and outlet paths terminate in connector fittings of a second configuration different from the first. Solenoid valves are associated with the inlet and outlet paths, and are actuated alternately so that the inlet and outlet paths are not simultaneously connected to the compressor. The connector fittings are mounted on a panel that has a sliding door for selectively exposing either but not both sets of connector fittings. The chance of misconnection and mixing refrigerant types is thereby reduced.
摘要翻译：一种用于回收至少两种不同和不相容类型的制冷剂的系统，其包括压缩机，所述压缩机具有用于通过到正在使用的设备的第一和第二平行入口连接的入口，以及用于通过第一和第二平行出口路径连接到制冷剂储存容器。第一入口和出口路径终止于第一配置的连接器配件中，并且第二入口和出口路径终止于与第一配置不同的第二配置的连接器配件中。电磁阀与入口和出口路径相关联，并被交替地致动，使得入口和出口路径不同时连接到压缩机。连接器配件安装在具有滑动门的面板上，用于选择性地暴露两个连接器配件，而不是两组连接器配件。因此，减少了制冷剂类型的错误连接和混合的机会。

5. 发明授权

US5038578A Refrigerant recovery and purification system 失效
标题翻译：制冷剂回收和净化系统
公开(公告)号：US5038578A
公开(公告)日：1991-08-13
申请号：US528252
申请日：1990-05-24
申请人： Kenneth W. Manz , Roger D. Shirley
发明人： Kenneth W. Manz , Roger D. Shirley
IPC分类号： F25B45/00
CPC分类号： F25B45/00 , F25B2345/002 , F25B2345/0052 , Y02B30/52
摘要： A refrigerant recovery system which includes a compressor having an input coupled through an evaporator and through a solenoid valve to the refrigeration system from which refrigerant is to be withdrawn, and an output coupled through a condenser to a refrigerant storage container. The evaporator and condenser are contained within a closed cylindrical canister for heat exchange and oil separation, the canister having an oil drain valve in the bottom. The refrigerant storage container is carried by a scale having a limit switch coupled to control electronics to prevent or terminate further refrigeant recovery when the container is full. The entire system, including the control electronics, is mounted on a two-wheel hand truck to facilitate transport to a job site such as a building air conditioning or heat pump system. Apparatus for purifying recovered refrigerant includes a replaceable core filter/dryer, and a liquid pump for circulating refrigerant from the liquid port of the storage container through the core and then to the container vapor port. A differential pressure gauge is connected across the filter/dryer to indicate need for core replacement. A moisture indicator displays water concentration in the refrigerant. The purification apparatus may be either separate from or combined with the recovery system.
摘要翻译：一种制冷剂回收系统，其包括压缩机，该压缩机具有通过蒸发器连接的输入端，并且通过电磁阀连接至制冷系统，制冷剂将从该制冷系统中排出，以及通过冷凝器联接到制冷剂储存容器的输出。蒸发器和冷凝器容纳在用于热交换和油分离的封闭的圆筒形罐中，该罐在底部具有排油阀。制冷剂储存容器由具有与控制电子装置连接的限位开关的秤进行承载，以防止或终止在容器充满时进一步的重新恢复。整个系统，包括控制电子装置，安装在两轮手推车上，便于运输到工地，如建筑空调或热泵系统。用于净化回收的制冷剂的装置包括可更换的芯过滤器/干燥器和液体泵，用于使制冷剂从存储容器的液体端口通过核心再循环到容器蒸气端口。差压表连接在过滤器/干燥器上，以指示需要更换核心。湿度指示器显示制冷剂中的水分浓度。净化装置可以与回收系统分离或与回收系统组合。

6. 发明授权

US4938031A Refrigerant recovery and purification system 失效
标题翻译：制冷剂回收和净化系统
公开(公告)号：US4938031A
公开(公告)日：1990-07-03
申请号：US319618
申请日：1989-03-03
申请人： Kenneth W. Manz , Roger D. Shirley
发明人： Kenneth W. Manz , Roger D. Shirley
IPC分类号： F25B45/00
CPC分类号： F25B45/00 , F25B2345/002 , F25B2345/0052 , F25B2345/007 , Y02B30/52
摘要： A refrigerant recovery system which includes a compressor having an input coupled through an evaporator and through a solenoid valve to the refrigeration system from which refrigerant is to be withdrawn, and an output coupled through a condenser to a refrigerant storage container. The evaporator and condenser are contained within a closed cylindrical canister for heat exchange and oil separation, the canister having an oil drain valve in the bottom. The refrigerant storage container is carried by a scale having a limit switch coupled to control electronics to prevent or terminate further refrigerant recovery when the container is full. The entire system, including the control electronics, is mounted on a two-wheel hand truck to facilitate transport to a job site such as a building air conditioning or heat pump system. Apparatus for purifying recovered refrigerant includes a replaceable core filter/dryer, and a liquid pump for circulating refrigerant from the liquid port of the storage container through the core and then to the container vapor port. A differential pressure gauge is connected across the filter/dryer to indicate need for core replacement. A moisture indicator displays water concentration in the refrigerant. The purification apparatus may be either separate from or combined with the recovery system.
摘要翻译：一种制冷剂回收系统，其包括压缩机，该压缩机具有通过蒸发器连接的输入端，并且通过电磁阀连接至制冷系统，制冷剂将从该制冷系统中排出，以及通过冷凝器联接到制冷剂储存容器的输出。蒸发器和冷凝器容纳在用于热交换和油分离的封闭的圆筒形罐中，该罐在底部具有排油阀。制冷剂储存容器由具有与控制电子装置连接的限位开关的标尺承载，以防止或终止当容器充满时进一步的制冷剂回收。整个系统，包括控制电子装置，安装在两轮手推车上，便于运输到工地，如建筑空调或热泵系统。用于净化回收的制冷剂的装置包括可更换的芯过滤器/干燥器和液体泵，用于使制冷剂从存储容器的液体端口通过核心再循环到容器蒸气端口。差压表连接在过滤器/干燥器上，以指示需要更换核心。湿度指示器显示制冷剂中的水分浓度。净化装置可以与回收系统分离或与回收系统组合。

7. 发明授权

US4809520A Refrigerant recovery and purification system 失效
标题翻译：制冷剂回收和净化系统
公开(公告)号：US4809520A
公开(公告)日：1989-03-07
申请号：US204675
申请日：1988-06-09
申请人： Kenneth W. Manz , Roger D. Shirley
发明人： Kenneth W. Manz , Roger D. Shirley
IPC分类号： F25B43/00 , F25B45/00
CPC分类号： F25B45/00 , F25B2345/002 , F25B2345/0052 , Y02B30/52
摘要： A refrigerant recovery system which includes a compressor having an input coupled through an evaporator and through a solenoid valve to the refrigeration system from which refrigerant is to be withdrawn, and an output coupled through a condenser to a refrigerant storage container. The evaporator and condenser are contained within a closed cylindrical canister for heat exchange and oil separation, the canister having an oil drain valve in the bottom. The refrigerant storage container is carried by a scale having a limit switch coupled to control electronics to prevent or terminate further refrigerant recovery when the container is full. The entire system, including the control electronics, is mounted on a two-wheel hand truck to facilitate transport to a job site such as a building air conditioning or heat pump system. Apparatus for purifying recovered refrigerant includes a replaceable core filter/dryer, and a liquid pump for circulating refrigerant from the liquid port of the storage container through the core and then to the container vapor port. A differential pressure gauge is connected across the filter/dryer to indicate need for core replacement. A moisture indicator displays water concentration in the refrigerant. The purification apparatus may be either separate from or combined with the recovery system.
摘要翻译：一种制冷剂回收系统，其包括压缩机，该压缩机具有通过蒸发器连接的输入端，并且通过电磁阀连接至制冷系统，制冷剂将从该制冷系统中排出，以及通过冷凝器联接到制冷剂储存容器的输出。蒸发器和冷凝器容纳在用于热交换和油分离的封闭的圆筒形罐中，该罐在底部具有排油阀。制冷剂储存容器由具有与控制电子装置连接的限位开关的标尺承载，以防止或终止当容器充满时进一步的制冷剂回收。整个系统，包括控制电子装置，安装在两轮手推车上，便于运输到工地，如建筑空调或热泵系统。用于净化回收的制冷剂的装置包括可更换的芯过滤器/干燥器和液体泵，用于使制冷剂从存储容器的液体端口通过核心再循环到容器蒸气端口。差压表连接在过滤器/干燥器上，以指示需要更换核心。湿度指示器显示制冷剂中的水分浓度。净化装置可以与回收系统分离或与回收系统组合。

8. 发明授权

US4441330A Refrigerant recovery and recharging system 失效
标题翻译：制冷剂回收和再充电系统
公开(公告)号：US4441330A
公开(公告)日：1984-04-10
申请号：US402856
申请日：1982-07-29
申请人： Ralph C. Lower , Roger D. Shirley
发明人： Ralph C. Lower , Roger D. Shirley
IPC分类号： F25B45/00
CPC分类号： B60H1/00585 , F25B45/00 , F25B2345/001 , F25B2345/002 , F25B2345/0052
摘要： The invention pertains to method and apparatus for servicing refrigeration circuits wherein the refrigerant is removed from the circuit and the circuit recharged. In accord with the invention the recovered refrigerant may be reprocessed for recharging the circuit, or the recovered refrigerant may be stored and fresh refrigerant employed for circuit charging purposes. Further, the invention contemplates the removal of oil from recovered refrigerant, and the charging of a predetermined amount of lubricating oil into the recharged circuit.
摘要翻译：本发明涉及用于维修制冷回路的方法和装置，其中制冷剂从回路中移除并且回路再充电。根据本发明，回收的制冷剂可以被再处理以对回路进行再充电，或者回收的制冷剂可以被储存，并且用于电路充电目的的新鲜制冷剂。此外，本发明考虑从回收的制冷剂中除去油，以及将预定量的润滑油装入再充电回路中。

9. 发明授权

US4878356A Storage tank scale for a refrigerant recovery system 失效
标题翻译：用于制冷剂回收系统的储罐秤
公开(公告)号：US4878356A
公开(公告)日：1989-11-07
申请号：US263887
申请日：1988-10-28
申请人： Robert J. Punches , Gary P. Murray , Roger D. Shirley
发明人： Robert J. Punches , Gary P. Murray , Roger D. Shirley
IPC分类号： F17C13/02 , F25B45/00 , G01G3/12 , G01G23/00
CPC分类号： F17C13/023 , F25B45/00 , G01G23/005 , G01G3/12 , F17C2201/0109 , F17C2201/032 , F17C2221/038 , F17C2250/036 , F17C2250/0421 , F17C2260/022 , F25B2345/002 , F25B2345/007
摘要： A refrigerant recovery system that includes a refrigerant storage container, means for withdrawing refrigerant from a refrigeration system to be serviced and feeding such refrigerant to the container for storage, and a scale supporting the container for sensing impending overfill of the container. The scale includes a beam horizontally rigidly cantilevered from a base. A switch is positioned adjacent to the cantilever-remote end of the beam, and is responsive to deflection of the beam to indicate impending overfill of the container and prevent or terminate operation of the refrigerant recovery system.
摘要翻译：一种制冷剂回收系统，包括制冷剂储存容器，用于从要维修的制冷系统中抽出制冷剂并将该制冷剂供给到容器用于储存的装置以及用于感测容器的即将过量填充的容器的秤。标尺包括从基座水平刚性悬臂梁的梁。开关位于梁的悬臂远端附近，并且响应于梁的偏转以指示容器的即将过度填充，并且防止或终止制冷剂回收系统的操作。

10. 发明授权

US4364236A Refrigerant recovery and recharging system 失效
标题翻译：制冷剂回收和再充电系统
公开(公告)号：US4364236A
公开(公告)日：1982-12-21
申请号：US211571
申请日：1980-12-01
申请人： Ralph C. Lower , Roger D. Shirley
发明人： Ralph C. Lower , Roger D. Shirley
IPC分类号： F25B45/00
CPC分类号： B60H1/00585 , F25B45/00 , F25B2345/001 , F25B2345/002 , F25B2345/007
摘要： The invention pertains to method and apparatus for servicing refrigeration circuits wherein the refrigerant is removed from the circuit and the circuit recharged. In accord with the invention the recovered refrigerant may be reprocessed for recharging the circuit, or the recovered refrigerant may be stored and fresh refrigerant employed for circuit charging purposes. Further, the invention contemplates the removal of oil from recovered refrigerant, and the charging of a predetermined amount of lubricating oil into the recharged circuit.
摘要翻译：本发明涉及用于维修制冷回路的方法和装置，其中制冷剂从回路中移除并且回路再充电。根据本发明，回收的制冷剂可以被再处理以对回路进行再充电，或者回收的制冷剂可以被储存，并且用于电路充电目的的新鲜制冷剂。此外，本发明考虑从回收的制冷剂中除去油，以及将预定量的润滑油装入再充电回路中。

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