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    PORTABLE, REFRIGERANT RECOVERY UNIT
    4.
    发明申请
    PORTABLE, REFRIGERANT RECOVERY UNIT 审中-公开
    便携式，制冷回收单元

    公开(公告)号：US20150139839A1

    公开(公告)日：2015-05-21

    申请号：US14605082

    申请日：2015-01-26

    申请人： Gregory S. Sundheim

    发明人： Gregory S. Sundheim

    IPC分类号： F25B45/00 ,  F04B53/08 ,  F04B49/22 ,  F04B35/06 ,  F04B27/00

    CPC分类号： F04B9/04 ,  F04B27/005 ,  F04B35/06 ,  F04B41/02 ,  F04B53/00 ,  F25B45/00 ,  F25B2345/002 ,  F25B2345/0051 ,  F25B2345/006 ,  Y10T74/18256

    摘要： A portable, refrigerant recovery unit for transferring refrigerant from a refrigeration system to a storage tank. The recovery unit includes two, opposed piston heads rigidly attached to respective piston rods that extend along a common fixed axis. The piston rods are rigidly attached to the yoke member of a scotch yoke arrangement. In operation, incoming refrigerant from the system is simultaneously and continuously directed to the opposing piston heads wherein the forces of the pressurized refrigerant on them counterbalance or neutralize one another. The recovery unit also has a cooling fan driven by the motor for driving the scotch yoke in which the fan is driven through a step up gearing arrangement. In operation, the drive shaft of the motor is rotated at a first rate and the driven shaft of the fan is driven at a greater rate (e.g., twice the first rate) by the step up gearing arrangement.

    摘要翻译： 一种用于将制冷剂从制冷系统传送到储罐的便携式制冷剂回收单元。 回收单元包括两个相对的活塞头，其刚性地连接到沿公共固定轴线延伸的各个活塞杆。 活塞杆刚性地连接到苏格兰克轭装置的轭构件上。 在操作中，来自系统的进入制冷剂同时且连续地引导到相对的活塞头，其中加压的制冷剂在其上的力抵消或相互抵消。 回收单元还具有由电动机驱动的冷却风扇，用于驱动通过升档装置驱动风扇的苏格兰转盘。 在操作中，马达的驱动轴以第一速率旋转，并且风扇的从动轴通过升压装置以更大的速率（例如，第一速率的两倍）被驱动。

    Portable refrigerant handling apparatus and associated methods
    5.
    发明授权
    Portable refrigerant handling apparatus and associated methods 失效

    公开(公告)号：US5218831A

    公开(公告)日：1993-06-15

    申请号：US968191

    申请日：1992-10-29

    申请人： Robert L. Keltner

    发明人： Robert L. Keltner

    IPC分类号： F24F13/00 ,  F25B45/00

    CPC分类号： B60H1/00585 ,  F24F13/00 ,  F25B45/00 ,  F25B2345/001 ,  F25B2345/0051

    摘要： Portable, hand carryable acid purification and flushing and transfer systems are provided for use in various refrigerant recovery, recycling and flushing operations performed in conjunction with an air conditioning circuit. The acid purification system is disposed within a carrying housing and includes an accumulation/distillation type acid separator piped in series with a pair of cylindrical dual core filter assemblies. A pair of refrigerant inlet and outlet fittings are externally mounted on the housing. By connecting these fittings in a forced flow refrigerant circuit the refrigerant is passed sequentially through the acid separator and the first and second filter assemblies to cleanse the refrigerant of acid and particulate impurities therein. The portable flushing and transfer system is also disposed in a carrying housing and includes a high capacity liquid refrigerant transfer pump piped in series with a check valve and a relief valve. Inlet and outlet valves mounted on the housing may be connected to an air conditioning circuit to provide for rapid recycling or recovery of its refrigerant. An adapter kit is furnished with the flushing and transfer system and includes connecting hoses, strainer and filtration apparatus, and specially designed adapter fittings that permit the system to be connected to a variety of air conditioning circuits.

    Method and System for a Portable Refrigerant Recovery Unit Load Controller
    8.
    发明申请
    Method and System for a Portable Refrigerant Recovery Unit Load Controller 有权
    便携式制冷剂回收单元负荷控制器的方法和系统

    公开(公告)号：US20140182312A1

    公开(公告)日：2014-07-03

    申请号：US13730339

    申请日：2012-12-28

    申请人： ROBERT BOSCH GMBH

    发明人： Dylan Lundberg ,  Mark McMasters

    IPC分类号： F25B49/02

    CPC分类号： F25B45/00 ,  F25B2345/002 ,  F25B2345/003 ,  F25B2345/0051 ,  F25B2400/0401 ,  F25B2500/26 ,  F25B2600/026 ,  F25B2700/151

    摘要： A system and methods associated therewith for providing a load controller for a refrigerant recovery unit are disclosed. The load controller can be controlled to operate when the current drawn by the motor increases due to pressure changes caused by abnormal refrigerant flow or during activation of the motor in order to lower the pressure. In some aspects of the present disclosure, the load controller can lower the pressure by recirculating some of the pressure load through the opening of a compressor bypass loop line. In some embodiments, the current/pressure load may be monitored during the operation of the refrigerant recovery unit and set to act as an emergency shut off and alert system to the user when the system malfunctions.

    摘要翻译： 公开了一种用于提供用于制冷剂回收单元的负载控制器的与其相关联的系统和方法。 当电动机所引起的电流由于制冷剂异常流动引起的压力变化或电动机启动期间的压力变化而降低压力时，能够控制负载控制器的动作。 在本公开的一些方面，负载控制器可以通过使一些压力负载通过压缩机旁路回路线的开口来降低压力。 在一些实施例中，可以在制冷剂回收单元的操作期间监测电流/压力负载，并且当系统发生故障时将其设置为用户的紧急切断和警报系统。

    Maintenance machine for refrigeration units with reversible motor
    9.
    发明授权
    Maintenance machine for refrigeration units with reversible motor 有权
    具有可逆电机的制冷机维修机

    公开(公告)号：US08740582B2

    公开(公告)日：2014-06-03

    申请号：US13379315

    申请日：2010-05-27

    申请人： Gerd H. Rabe

    发明人： Gerd H. Rabe

    IPC分类号： F04D13/12 ,  F04B23/04 ,  F25B45/00

    CPC分类号： F25B45/00 ,  F04B35/04 ,  F25B2345/0051

    摘要： For refrigeration units, maintenance machines are required that can receive and compress the refrigerant from the refrigeration unit. Furthermore, a vacuum pump is required, which is connected to the emptied lines and pumps out humidity and air. The maintenance machine according to the invention includes a motor that drives a compressor via a freewheel in one rotational direction. The same motor drives a vacuum pump via a second freewheel in the other rotational direction. The maintenance machine, which can perform two different functions, includes only one single motor. The machine is lightweight, so that it can be carried by the maintenance personnel. Furthermore, it is small and can be produced in a cost-effective manner.

    摘要翻译： 对于制冷机组，需要能够从制冷单元接收和压缩制冷剂的维护机。 此外，需要真空泵，其连接到排空管线并泵出湿气和空气。 根据本发明的维护机器包括一个通过一个旋转方向的自由轮驱动压缩机的马达。 相同的电机通过另一个旋转方向的第二个续流器驱动真空泵。 可以执行两种不同功能的维护机器仅包括一台电机。 机器重量轻，维护人员可携带。 此外，它很小，可以以成本有效的方式生产。

    MAINTENANCE MACHINE FOR REFRIGERATION UNITS
    10.
    发明申请
    MAINTENANCE MACHINE FOR REFRIGERATION UNITS 有权
    制冷机组维护机

    公开(公告)号：US20120100018A1

    公开(公告)日：2012-04-26

    申请号：US13379315

    申请日：2010-05-27

    申请人： Gerd H. Rabe

    发明人： Gerd H. Rabe

    IPC分类号： F04B17/00

    CPC分类号： F25B45/00 ,  F04B35/04 ,  F25B2345/0051

    摘要： For refrigeration units, maintenance machines are required that can receive and compress the refrigerant from the refrigeration unit. Furthermore, a vacuum pump is required, which is connected to the emptied lines and pumps out humidity and air. The maintenance machine according to the invention includes a motor that drives a compressor via a freewheel in one rotational direction. The same motor drives a vacuum pump via a second freewheel in the other rotational direction. The maintenance machine, which can perform two different functions, includes only one single motor. The machine is lightweight, so that it can be carried by the maintenance personnel. Furthermore, it is small and can be produced in a cost-effective manner.

    摘要翻译： 对于制冷机组，需要能够从制冷单元接收和压缩制冷剂的维护机。 此外，需要真空泵，其连接到排空管线并泵出湿气和空气。 根据本发明的维护机器包括一个通过一个旋转方向的自由轮驱动压缩机的马达。 相同的电机通过另一个旋转方向的第二个续流器驱动真空泵。 可以执行两种不同功能的维护机器仅包括一台电机。 机器重量轻，维护人员可携带。 此外，它很小，可以以成本有效的方式生产。