公开(公告)号：US5231842A

公开(公告)日：1993-08-03

申请号：US900522

申请日：1992-06-17

申请人： Kenneth W. Manz ,  Gregg Laukhuf

发明人： Kenneth W. Manz ,  Gregg Laukhuf

IPC分类号： F17C13/02 ,  F25B45/00 ,  G05D23/24

CPC分类号： F25B45/00 ,  F17C13/025 ,  F17C2205/0326 ,  F17C2205/0329 ,  F17C2223/0153 ,  F17C2223/033 ,  F17C2225/0123 ,  F17C2225/033 ,  F17C2227/0135 ,  F17C2227/0157 ,  F17C2227/0304 ,  F17C2227/0393 ,  F17C2250/0439 ,  F17C2250/0626 ,  F17C2250/0631 ,  F17C2250/0636 ,  F17C2260/023

摘要： A refrigerant handling system that includes a compressor for pumping refrigerant through the system, and an evaporator connected to the compressor inlet for ensuring that refrigerant fed to the compressor inlet is in vapor phase. A flow control device is coupled to the inlet of the evaporator for controlling flow of refrigerant to the evaporator, and comprises a thermostatic expansion valve having first and second pressure inputs, and valve elements for controlling flow of refrigerant through the valve to the evaporator as a function of a pressure differential between the pressure inputs. A first bulb containing refrigerant is sealingly coupled to the first pressure input of the valve, and is positioned so as to supply a first control pressure to the valve as a function of vapor pressure of refrigerant in the bulb at the temperature of refrigerant entering the evaporator. A second bulb containing the same type of refrigerant is sealingly coupled to the second pressure input of the valve, and is positioned to supply a control pressure to the second valve input as a function of vapor pressure of refrigerant at the temperature of refrigerant exiting the evaporator.

摘要翻译： 一种制冷剂处理系统，包括用于通过系统泵送制冷剂的压缩机和连接到压缩机入口的蒸发器，用于确保供给到压缩机入口的制冷剂处于气相。 流量控制装置耦合到蒸发器的入口，用于控制制冷剂到蒸发器的流动，并且包括具有第一和第二压力输入的恒温膨胀阀，以及用于控制制冷剂通过阀流到蒸发器的阀元件，作为 压力输入之间压差的函数。 包含制冷剂的第一灯泡密封地联接到阀的第一压力输入端，并且被定位成在进入蒸发器的制冷剂的温度下作为灯泡中的制冷剂的蒸气压的函数向阀提供第一控制压力 。 包含相同类型的制冷剂的第二灯泡密封地联接到阀的第二压力输入，并且被定位成在离开蒸发器的制冷剂的温度下作为制冷剂的蒸汽压力的函数向第二阀输入提供控制压力 。

公开(公告)号：US5544494A

公开(公告)日：1996-08-13

申请号：US364783

申请日：1994-12-27

申请人： Kenneth W. Manz ,  Daniel L. Olds

发明人： Kenneth W. Manz ,  Daniel L. Olds

IPC分类号： F25B43/04 ,  F25B45/00

CPC分类号： F25B45/00 ,  F25B43/04 ,  F25B2345/004

摘要： Refrigerant is purified by circulating the refrigerant in a closed path from a first refrigerant container through a filter/dryer unit back to the first refrigerant container. Air and other non-condensibles are purged from the refrigerant in the first storage container during this refrigerant circulation process. Following the non-condensible purging operation, the refrigerant in the first container is transferred through a filter/dryer unit into a second refrigerant container. This second refrigerant container is evacuated prior to transferring the purified refrigerant thereto. Capacity of the filter/dryer unit is monitored, either by monitoring time of operation of the refrigerant pump or monitoring wetness of the circulated refrigerant with the sight gauge.

摘要翻译： 制冷剂通过将密封的制冷剂从第一制冷剂容器通过过滤器/干燥器单元循环回第一制冷剂容器而被净化。 在该制冷剂循环过程中，空气和其它不可冷凝物从第一储存容器中的制冷剂中被清除。 在不可冷凝清洗操作之后，第一容器中的制冷剂通过过滤器/干燥器单元传送到第二制冷剂容器中。 在将净化后的制冷剂转移到第二制冷剂容器之前，将该第二制冷剂容器抽真空。 通过监视制冷剂泵的运行时间或用监视仪监测循环制冷剂的湿度来监视过滤器/干燥器单元的容量。

公开(公告)号：US5535595A

公开(公告)日：1996-07-16

申请号：US343661

申请日：1994-11-22

申请人： Kenneth W. Manz

发明人： Kenneth W. Manz

IPC分类号： B01D5/00 ,  B01D45/16 ,  F25B43/04 ,  F25B45/00

CPC分类号： F25B45/00 ,  B01D45/16 ,  B01D5/0081 ,  B01D5/0093 ,  F25B43/04

摘要： A refrigerant handling system that includes a refrigerant compressor having an inlet for connection to a source of refrigerant and an outlet for delivering refrigerant under pressure. A refrigerant/non-condensible separator is coupled to the compressor outlet. The separator includes a refrigerant conduit wound in a closed planar spiral, such that refrigerant flowing through the conduit is urged by centrifugal force against the radially outer wall portion of the conduit. Openings in the upper wall portion of the conduit vent air and other non-condensibles of lesser molecular weight than the refrigerant.

摘要翻译： 一种制冷剂处理系统，包括具有用于连接到制冷剂源的入口和用于在压力下输送制冷剂的出口的制冷剂压缩机。 制冷剂/不可冷凝分离器联接到压缩机出口。 分离器包括缠绕在封闭的平面螺旋中的制冷剂管道，使得流过导管的制冷剂被离心力推压在导管的径向外壁部分上。 导管的上壁部分的开口排出空气和其他比制冷剂分子量小的不可冷凝物。

公开(公告)号：US5388416A

公开(公告)日：1995-02-14

申请号：US279347

申请日：1994-07-25

申请人： Kenneth W. Manz ,  Christopher M. Powers

发明人： Kenneth W. Manz ,  Christopher M. Powers

IPC分类号： F25B43/04 ,  F25B45/00 ,  F25B47/00

CPC分类号： F25B43/04 ,  F25B45/00

摘要： A refrigerant handling system that includes an air purge chamber and a refrigerant pump for directing refrigerant into the air purge chamber so that the refrigerant collects in liquid phase at a lower portion of the chamber while air and other non-condensibles collect in a vapor space at the upper portion of the chamber over the refrigerant. A purge valve is connected to the upper portion of the chamber for automatically or manually purging air and other non-condensibles from the chamber. A refrigerant outlet is positioned at the lower portion of the chamber for drawing liquid phase refrigerant from the chamber. A minimum level of liquid phase refrigerant is maintained in the lower portion of the chamber at the outlet isolating the outlet from the vapor space, and preventing removal of air and other non-condensibles from the chamber through the outlet.

摘要翻译： 一种制冷剂处理系统，其包括空气净化室和制冷剂泵，用于将制冷剂引导到空气净化室中，使得制冷剂在室的下部以液相收集，同时空气和其它不可冷凝物聚集在蒸气空间中 腔室的上部在制冷剂上。 净化阀连接到室的上部，以自动或手动地从室中吹扫空气和其它不可冷凝物。 制冷剂出口位于室的下部，用于从室吸取液相制冷剂。 液体相制冷剂的最低水平保持在出口隔室处的出口隔室处的下部，并且防止空气和其它不可冷凝物从室通过出口排出。

公开(公告)号：US5158747A

公开(公告)日：1992-10-27

申请号：US692184

申请日：1991-04-26

申请人： Kenneth W. Manz ,  Gary P. Murray ,  Charles E. Dull

发明人： Kenneth W. Manz ,  Gary P. Murray ,  Charles E. Dull

IPC分类号： F25B1/00 ,  F25B49/02 ,  G01N25/14 ,  G01N33/00 ,  G01N33/28

CPC分类号： G01N33/0049 ,  G01N33/28

摘要： Apparatus for identifying and distinguishing between at least two different types of refrigerant includes a sample container having a fixed internal volume. Refrigerant to be tested is selectively admitted into the container in vapor phase, vapor pressure of refrigerant within the container is measured, and admission of refrigerant into the container is terminated when the vapor pressure of refrigerant contained therein reaches a preselected level. A sensor and associated electronics are coupled to the container for determining type of refrigerant vapor in the container as a function of one or more selected properties of the refrigerant, and indicating such refrigerant type to the operator.

摘要翻译： 用于识别和区分至少两种不同类型制冷剂的装置包括具有固定内部容积的样品容器。 要测试的制冷剂选择性地进入容器中的气相，测量容器内的制冷剂的蒸汽压力，并且当其中所含的制冷剂的蒸气压达到预选的水平时，制冷剂进入容器的进入将被终止。 传感器和相关联的电子器件耦合到容器，用于根据制冷剂的一个或多个选定的性质来确定容器中的制冷剂蒸气的类型，并向操作者指示这种制冷剂类型。

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。

公开(公告)号：USRE33212E

公开(公告)日：1990-05-08

申请号：US254852

申请日：1988-10-07

申请人： Ralph C. Lower ,  Kenneth W. Manz ,  Gary P. Murray

发明人： Ralph C. Lower ,  Kenneth W. Manz ,  Gary P. Murray

IPC分类号： B60H1/00 ,  F25B45/00

CPC分类号： B60H1/00585 ,  F25B45/00 ,  F25B2345/003 ,  F25B2345/0052 ,  F25B2345/007

摘要： Apparatus for service and recharge of refrigeration equipment, with particular application to automotive air conditioning equipment. A vacuum pump, and oil and refrigerant charge containers are housed within a portable enclosure and configured for selective connection by electrically operated solenoid valves to refrigeration equipment under service. The refrigerant and oil containers are carried by a scale which provides electrical outputs signals as a function of weight of refrigerant and oil remaining in the containers. A microprocessor-based controller receives the scale signals and control signals from an operator panel for automatically cycling through vacuum, oil charge and refrigerant charge stages in a programmed mode of operation. The microprocessor-based controller includes facility for operator programming of the vacuum time and oil and refrigerant charge quantities, and for self- or operator-implemented diagnostics. Operating conditions and stages are displayed at all times to the operator.

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。

公开(公告)号：US5172562A

公开(公告)日：1992-12-22

申请号：US757663

申请日：1991-09-10

申请人： Kenneth W. Manz ,  Charles E. Dull

发明人： Kenneth W. Manz ,  Charles E. Dull

IPC分类号： F25B45/00

CPC分类号： F25B45/00 ,  F25B2345/001 ,  F25B2345/002

摘要： In a combined recovery, purification and recharging system, a refrigerant compressor has an inlet coupled to a recovery control valve for connection to a refrigeration system under service from which refrigerant is to be recovered, purified and recharged into the system. The compressor outlet is connected to a first port of a refrigerant storage container. A filter for removing contaminants from refrigerant is coupled to a circulation control valve for selectively circulating refrigerant in a closed path during a purification cycle from a second port of the container through the filter back to the first port of the container. A vacuum pump is coupled to a vacuum control valve for selective connection to the refrigeration system under service during a vacuum cycle for evacuating the system under service to atmosphere. A pressure sensor is connected to the vacuum pump for automatically terminating vacuum pump operation when pressure in the system under service is below a preselected low-pressure threshold. The purification cycle may be initiated either automatically upon initiation of a vacuum cycle, or by an operator independently of the vacuum cycle. A recharging control valve is coupled to the second port of the refrigerant storage container for selectively feeding fresh refrigerant from the storage container to the refrigeration system under service during a recharging cycle.

摘要翻译： 在组合的回收，净化和再充电系统中，制冷剂压缩机具有联接到回收控制阀的入口，用于连接到正在使用的制冷系统的制冷系统，制冷剂将从中回收，净化和再充电到系统中。 压缩机出口连接到制冷剂储存容器的第一端口。 用于从制冷剂中去除污染物的过滤器被耦合到循环控制阀，用于在从容器的第二端口通过过滤器返回到容器的第一端口的净化循环期间选择性地循环制冷剂在封闭路径中循环。 真空泵联接到真空控制阀，用于在真空循环期间选择性地连接到正在使用的制冷系统，以将服务的系统抽空到大气中。 压力传感器连接到真空泵，用于在正在使用的系统中的压力低于预选的低压阈值时自动终止真空泵的操作。 净化循环可以在启动真空循环时自动启动，或者由操作者独立于真空循环启动。 一个再充电控制阀联接到制冷剂储存容器的第二端口，用于在再充电循环期间选择性地将新鲜制冷剂从储存容器输送到正在使用的制冷系统。

公开(公告)号：US5127239A

公开(公告)日：1992-07-07

申请号：US681365

申请日：1991-04-08

申请人： Kenneth W. Manz ,  Mark E. Ramsey

发明人： Kenneth W. Manz ,  Mark E. Ramsey

IPC分类号： F17C13/00 ,  F25B45/00

CPC分类号： F17C13/005 ,  F25B45/00 ,  F25B2345/002 ,  F25B2345/006

摘要： A refrigerant handling system that includes a compressor and a plurality of refrigerant system components connected in series between a refrigerant source, such as a system under service, and a refrigerant storage container. To clear a selected system component of refrigerant, such as a refrigerant filter or a refrigerant condenser, a valve is connected between the selected component and the compressor. The valve has multiple ports and valve positions, in one of which refrigerant is fed through the selected component to the storage container in normal operation, and in another of which the selected component is isolated from the storage container and connected to the pump inlet for drawing refrigerant from the component and feeding such refrigerant directly to the container. A check valve cooperates with the multi-port valve to isolate the selected component from the storage container during the clearing mode of operation.

摘要翻译： 一种制冷剂处理系统，包括压缩机和串联连接在诸如正在使用的系统的制冷剂源和制冷剂储存容器之间的多个制冷剂系统部件。 为了清除制冷剂的选定系统部件，例如制冷剂过滤器或制冷剂冷凝器，阀被连接在所选择的部件和压缩机之间。 阀具有多个端口和阀位置，其中一个制冷剂在正常操作中通过所选择的部件供给到储存容器，另一个中选定的部件与储存容器隔离并连接到泵入口用于拉伸 制冷剂从该部件中直接送入容器。 在清除操作模式期间，止回阀与多口阀配合以将所选择的部件与存储容器隔离。