Rotary compressor with improved bore configuration and lubrication system
    1.
    发明授权
    Rotary compressor with improved bore configuration and lubrication system 失效
    旋转压缩机具有改进的孔结构和润滑系统

    公开(公告)号:US5310326A

    公开(公告)日:1994-05-10

    申请号:US944321

    申请日:1992-09-14

    摘要: A rotary compressor, such as a sliding vane compressor, comprises a housing having a bore, a rotor assembly operatively arranged to rotate within the bore, vanes operatively arranged at the rotor assembly to move linearly relative to the rotor assembly and to form, together with the housing and rotor assembly, variable chambers, and a valve assembly arranged in the housing. The bore has a configuration divided into a expansion region of elliptical shape, a circular transition region, a polynomial-shaped compression region and a circular sealing region. The lubricant seal is composed of an oil injection port and oil grooves for trapping and transporting the oil. The valve assembly is provided in a recess portion of the housing and is configured as a thin blade covering each discharge port which has been relieved to minimize undesirably large difference of the pressure forces between the two sides of the blade. Oil grooves are provided in the rotor assembly and in end cap assemblies. In addition, the area seal and lubricant seal can be utilized in other types of compressors such as a rolling piston-type rotary compressor.

    摘要翻译: 诸如滑动叶片压缩机的旋转压缩机包括具有孔的壳体,可操作地布置成在孔内旋转的转子组件,可操作地布置在转子组件处的叶片,其相对于转子组件线性移动并与 壳体和转子组件,可变室和布置在壳体中的阀组件。 孔具有分为椭圆形膨胀区域,圆形过渡区域,多项式压缩区域和圆形密封区域的构造。 润滑油密封由油注入口和用于捕集和运输油的油槽组成。 阀组件设置在壳体的凹部中,并且被构造成覆盖已经释放的每个排出口的薄叶片,以最小化叶片两侧之间的压力的不期望的大的差异。 油槽设置在转子组件和端盖组件中。 此外,区域密封和润滑剂密封件可以用于其它类型的压缩机,例如滚动活塞式旋转压缩机。

    Magnetic bearing centrifugal refrigeration compressor and refrigerant
having minimum specific enthalpy rise
    2.
    发明授权
    Magnetic bearing centrifugal refrigeration compressor and refrigerant having minimum specific enthalpy rise 失效
    磁轴承离心制冷压缩机和具有最小比焓升高的制冷剂

    公开(公告)号:US5924847A

    公开(公告)日:1999-07-20

    申请号:US908035

    申请日:1997-08-11

    CPC分类号: F04D29/058 F04D25/06 F25B1/04

    摘要: A vapor compression refrigeration system, such as a water chiller, uses a centrifugal compressor with magnetic bearings and a refrigerant, specifically HFC-227ea and HFC-227ca, to minimize enthalpy rise across the compressor and/or provide compression in a single stage for low cooling capacity. Magnetic bearings eliminate the problem caused by lubricated bearings to support rotating structure during normal compressor operation. The centrifugal compressor can be configured with a pre-defined static surge line.

    摘要翻译: 诸如水冷却器的蒸汽压缩制冷系统使用具有磁性轴承和制冷剂,特别是HFC-227ea和HFC-227ca的离心式压缩机,以最小化跨过压缩机的焓上升和/或在单级中提供低压缩 冷却能力。 磁性轴承消除了润滑轴承在正常压缩机运行期间支撑旋转结构的问题。 离心压缩机可以配置一个预定义的静电浪涌线。

    Portable refrigerant recovery system

    公开(公告)号:US5603224A

    公开(公告)日:1997-02-18

    申请号:US549065

    申请日:1995-10-27

    IPC分类号: F25B45/00 F25B49/00

    摘要: A portable, electrically powered refrigerant recovery system and method uses a single manifold to reduce fabrication time and costs. A hot gas discharge port in combination with a check valve allows the recovery system to be utilized as a vacuum pump as well as a refrigerant recovery device. A rectangular aluminum oil separator has internal baffles and is located between the inlet and a compressor. A low-voltage control circuit uses a latching circuit to avoid short cycling of the compressor and thereby increase compressor life. The system provides an improved push-pull recovery method in which superheated refrigerant vapor from the compressor is diverted directly to the system being recovered so that the superheated vapor is returned to the unit being emptied to speed the recovery process.

    Chemical/mechanical system and method using two-phase/two-component
compression heat pump
    4.
    发明授权
    Chemical/mechanical system and method using two-phase/two-component compression heat pump 失效
    化学/机械系统和方法采用双相/双组分压缩热泵

    公开(公告)号:US5582020A

    公开(公告)日:1996-12-10

    申请号:US347095

    申请日:1994-11-23

    摘要: A heat pump system and method utilizes heat of mixing, in addition to the latent heat of solution, to increase cooling ability and thermal performance. The system includes a unique two-phase compressor for compressing a two-component mixture of liquid absorbent-refrigerant solution and superheated vapor to a high pressure. A generator extracts heat from the volume to be cooled by desorption and evaporation of the refrigerant from the high concentration solution in fluid connection with the inlet of the compressor. An absorber releases heat to surroundings by absorbing and condensing refrigerant vapor back into the liquid solution. A throttle valve controls the flow and reduces the pressure of the working fluid is in fluid connection with the absorber and the generator.

    摘要翻译: 除了溶液的潜热之外,热泵系统和方法利用混合热,以增加冷却能力和热性能。 该系统包括用于将液体吸收剂 - 制冷剂溶液和过热蒸气的双组分混合物压缩至高压的独特的两相压缩机。 发电机通过从与压缩机的入口流体连接的高浓度溶液的解吸和蒸发而从待冷却的体积中提取热量。 吸收器通过将制冷剂蒸气吸收并冷凝回液体溶液而将热量释放到周围。 节流阀控制流量并降低工作流体与吸收器和发生器流体连接的压力。

    Portable refrigerant recovery system
    5.
    发明授权
    Portable refrigerant recovery system 失效
    便携式制冷剂回收系统

    公开(公告)号:US5638689A

    公开(公告)日:1997-06-17

    申请号:US405681

    申请日:1995-03-17

    IPC分类号: F25B45/00

    摘要: A portable, electrically powered refrigerant recovery system and method uses a single manifold to reduce fabrication time and costs. A hot gas discharge port in combination with a check valve allows the recovery system to be utilized as a vacuum pump as well as a refrigerant recovery device. A rectangular aluminum oil separator has internal baffles and is located between the inlet and a compressor. A low-voltage control circuit uses a latching circuit to avoid short cycling of the compressor and thereby increase compressor life. The system provides an improved push-pull recovery method in which superheated refrigerant vapor from the compressor is diverted directly to the system being recovered so that the superheated vapor is returned to the unit being emptied to speed the recovery process.

    摘要翻译: 便携式电动制冷剂回收系统和方法使用单个歧管来减少制造时间和成本。 与止回阀结合的热气体排放口允许回收系统用作真空泵以及制冷剂回收装置。 矩形铝油分离器具有内部挡板并且位于入口和压缩机之间。 低压控制电路使用闭锁电路来避免压缩机的短暂循环,从而增加压缩机寿命。 该系统提供了一种改进的推拉回收方法,其中来自压缩机的过热制冷剂蒸汽直接转移到被回收的系统,使得过热蒸汽返回到被排空的单元以加速回收过程。